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Recent experiences with Netrunner tournaments After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three...
31st Mar 2016
23

Recent experiences with Netrunner tournaments

from Jonas Hietala [alt+shift+b] in technology

31st Mar 2016
After a bit of a hiatus after the Winter Kit Tournament the 16th January I participated in three tournaments during February - March. After each of these tournaments I started a writeup of them but they fell off my mind a bit but consider this my break with my blogging...
Design for Testability When designing a new software project, one is often faced with a glut of choices about how to...
6th Mar 2016
27

Design for Testability

from Posts on Made of Bugs [alt+shift+b] in technology

6th Mar 2016
When designing a new software project, one is often faced with a glut of choices about how to structure it. What should the core abstractions be? How should they interact with each other? In this post, I want to argue for a design heuristic that I’ve found to be a useful guide to...
Iterate or die Here's a conclusion I've made building consumer products for many years: the speed at which a...
2nd Mar 2016
21

Iterate or die

from Home on Erik Bernhardsson [alt+shift+b] in technology

2nd Mar 2016
Here's a conclusion I've made building consumer products for many years: the speed at which a company innovates is limited by its iteration speed. I don't even mean throughput here. I just mean the cycle time.
Values One of the most important things that a company needs to agree on is values. Values are a strange...
11th Feb 2016
1

Values

from Yazin Alirhayim [alt+shift+b] in technology

11th Feb 2016
One of the most important things that a company needs to agree on is values. Values are a strange being though — they are defined even when no one has explicitly taken the task of putting them on a powerpoint deck.
Service Objects in Rails Let’s kick off 2016 with a whistle-stop tour of one of my favourite OO approaches, Service Objects,...
7th Feb 2016
25

Service Objects in Rails

from Matt Blewitt [alt+shift+b] in technology

7th Feb 2016
Let’s kick off 2016 with a whistle-stop tour of one of my favourite OO approaches, Service Objects, in the context of Rails.
My issue with GPU-accelerated deep learning I've been spending several hundred bucks renting GPU instances on AWS over the last year. The...
3rd Feb 2016
25

My issue with GPU-accelerated deep learning

from Home on Erik Bernhardsson [alt+shift+b] in technology

3rd Feb 2016
I've been spending several hundred bucks renting GPU instances on AWS over the last year. The speedup from a GPU is awesome and hard to deny. GPUs have taken over the field. Maybe following the footsteps of Bitcoin mining there's some research on using FPGA (I know very little...
Verge interview at CES 2016 2025 Note - Behind the scenes, Pebble was a mess. We were about to do a layoff and enter the final...
8th Jan 2016
1

Verge interview at CES 2016

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

8th Jan 2016
2025 Note - Behind the scenes, Pebble was a mess. We were about to do a layoff and enter the final year…
The 'hidden' cost of using ZFS for your home NAS Introduction Update December 2023: In June, it was announced that iXsystems would sponsor...
2nd Jan 2016
35

The 'hidden' cost of using ZFS for your home NAS

from Louwrentius - Solar [alt+shift+b] in technology

2nd Jan 2016
Introduction Update December 2023: In June, it was announced that iXsystems would sponsor implementing the VDEV expansion feature. A new pr has been created for this effort. The feature was merged into the code base, but may not be available to the general public before the end...
2015 Read Books I didn’t read a lot of books in 2015, but the books I did read were pretty damn good. Fiction A Song...
1st Jan 2016
25

2015 Read Books

from Jonas Hietala [alt+shift+b] in technology

1st Jan 2016
I didn’t read a lot of books in 2015, but the books I did read were pretty damn good. Fiction A Song of Ice and Fire: A Dance with Dragons - George R.R. Martin Reread. A Knight of the Seven Kingdoms - Gearge R.R. Martin The Skin Collector - Jeffery Deaver Best Served Cold - Joe...
Books I read in 2015 Early last year when I left Spotify I decided to do more reading. I was planning to read at least...
1st Jan 2016
19

Books I read in 2015

from Home on Erik Bernhardsson [alt+shift+b] in technology

1st Jan 2016
Early last year when I left Spotify I decided to do more reading. I was planning to read at least one book per week and in particular I wanted to brush up on management, economics, and technology.
Factory Raw: Limited Run Finish Straight from our CNC mills - machining marks and all. These raw ElevationDock 3's have a bright,...
16th Dec 2015
19

Factory Raw: Limited Run Finish

from Elevation Lab - Blog [alt+shift+b] in technology

16th Dec 2015
Straight from our CNC mills - machining marks and all. These raw ElevationDock 3's have a bright, gorgeous, utilitarian look. You can see exactly how they were 5-axis milled, held, and hand deburred. They look cool on a desk and are popular around our office (mostly with machined...
More MCMC – Analyzing a small dataset with 1-5 ratings I've been obsessed with how to iterate quickly based on small scale feedback lately. One awesome...
5th Dec 2015
24

More MCMC – Analyzing a small dataset with 1-5 ratings

from Home on Erik Bernhardsson [alt+shift+b] in technology

5th Dec 2015
I've been obsessed with how to iterate quickly based on small scale feedback lately. One awesome website I encountered is Usability Hub which lets you run 5 second tests. Users see your site for 5 seconds and you can ask them free-form questions afterwards.
Establishing Habits with Habitica I have used Habitica the last 18 months to organize my habits and things I want to get done. I...
21st Nov 2015
38

Establishing Habits with Habitica

from Jonas Hietala [alt+shift+b] in technology

21st Nov 2015
I have used Habitica the last 18 months to organize my habits and things I want to get done. I believe it all started with an amazing book called The Power of Habit which describes the amazing benefits habits can give, both in the context of your own life but also in business....
Looking for smart people I haven't mentioned what I'm currently up to. Earlier this year I left Spotify to join a small...
4th Nov 2015
22

Looking for smart people

from Home on Erik Bernhardsson [alt+shift+b] in technology

4th Nov 2015
I haven't mentioned what I'm currently up to. Earlier this year I left Spotify to join a small startup called Better. We're going after one of the biggest industries in the world that also turns out to be completely broken.
What MongoDB got Right MongoDB is perhaps the most-widely-mocked piece of software out there right now. While some of the...
1st Nov 2015
23

What MongoDB got Right

from Posts on Made of Bugs [alt+shift+b] in technology

1st Nov 2015
MongoDB is perhaps the most-widely-mocked piece of software out there right now. While some of the mockery is out-of-date or rooted in misunderstandings, much of it is well-deserved, and it’s difficult to disagree that much of MongoDB’s engineering is incredibly simplistic,...
Stereotypes I read a great essay or article about stereotypical programmers called The Little Printf. I really...
14th Oct 2015
32

Stereotypes

from Jonas Hietala [alt+shift+b] in technology

14th Oct 2015
I read a great essay or article about stereotypical programmers called The Little Printf. I really couldn’t do it justice so do yourself a favor and go read it. It touches on several types of programmers or rather traits of programmers I recognize in my surroundings and also...
The Fear of Being Right The best designs often look wrong. They appear unexceptional. They don’t show off. They don’t push...
7th Oct 2015
1

The Fear of Being Right

from Daniel De Laney [alt+shift+b] in technology

7th Oct 2015
The best designs often look wrong. They appear unexceptional. They don’t show off. They don’t push our technical skills to the limit. They leave out things we expect. They don’t reflect the latest trends. “It just doesn’t look right.” “It almost looks unfinished.” “Nobody does...
Nearest neighbors and vector models – part 2 – algorithms and data structures This is a blog post rewritten from a presentation at NYC Machine Learning on Sep 17. It covers a...
1st Oct 2015
28

Nearest neighbors and vector models – part 2 – algorithms and data structures

from Home on Erik Bernhardsson [alt+shift+b] in technology

1st Oct 2015
This is a blog post rewritten from a presentation at NYC Machine Learning on Sep 17. It covers a library called Annoy that I have built that helps you do nearest neighbor queries in high dimensional spaces.
Netrunner Summer Tournament Linköping There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs...
18th Sep 2015
24

Netrunner Summer Tournament Linköping

from Jonas Hietala [alt+shift+b] in technology

18th Sep 2015
There was another Netrunner tournament this Sunday with 8 entrants. We had two new legal data packs with Old Hollywood and The Universe of Tomorrow so a lot of new things were tried. I heard a rumor that a full playset of both Aesop’s Pawnshop and Wyldside were available so I...
My 7 Rules for A/B Testing That Triple Conversion Rates I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I...
11th Sep 2015
29

My 7 Rules for A/B Testing That Triple Conversion Rates

from Comments for Lars Lofgren [alt+shift+b] in technology

11th Sep 2015
I really don’t care how any given A/B test turns out. That’s right. Not one bit. But wait, how do I double or triple conversion rates without caring how a test performs? I actually care about the whole SYSTEM of testing. All the pieces need to fit together just right. If not,...
Antipodes I was playing around with D3 last night and built a silly visualization of antipodes and how our...
8th Sep 2015
24

Antipodes

from Home on Erik Bernhardsson [alt+shift+b] in technology

8th Sep 2015
I was playing around with D3 last night and built a silly visualization of antipodes and how our intuitive understanding of the world sometimes doesn't make sense. Check out the visualization at bl.ocks.org! Basically the idea is if you fly from Beijing to Buenos Aires then you...
Never Use the Confirm Dialog It’s a standard function of all browsers, it’s everywhere, and it’s time to retire it. Here’s an...
8th Sep 2015
1

Never Use the Confirm Dialog

from Daniel De Laney [alt+shift+b] in technology

8th Sep 2015
It’s a standard function of all browsers, it’s everywhere, and it’s time to retire it. Here’s an example from JIRA. Trying to “Cancel” a comment brings up the confirm dialog: Even if we assume confirmation is necessary, the standard confirm dialog is a bad way to get it: Most of...
NightStand at your local Apple Store NightStands now come in some beautiful new colors & new packaging - you can find them in Apple...
26th Aug 2015
18

NightStand at your local Apple Store

from Elevation Lab - Blog [alt+shift+b] in technology

26th Aug 2015
NightStands now come in some beautiful new colors & new packaging - you can find them in Apple Stores around the globe beginning today. For any designer, to see something you made out in the wild is a special experience. So today is a real trip for our tiny little Portland...
Software Engineers and Automation Every once in a while when talking to smart people the topic of automation comes up. Technology has...
16th Aug 2015
21

Software Engineers and Automation

from Home on Erik Bernhardsson [alt+shift+b] in technology

16th Aug 2015
Every once in a while when talking to smart people the topic of automation comes up. Technology has made lots of occupations redundant, so what's next? Switchboard operator, a long time ago What about software engineers?
ZFS performance on HP Proliant Microserver Gen8 G1610T I think the HP Proliant Microserver Gen8 is a very interesting little box if you want to build your...
14th Aug 2015
53

ZFS performance on HP Proliant Microserver Gen8 G1610T

from Louwrentius - Solar [alt+shift+b] in technology

14th Aug 2015
I think the HP Proliant Microserver Gen8 is a very interesting little box if you want to build your own ZFS-based NAS. The benchmarks I've performed seem to confirm this. The Microserver Gen8 has nice features such as: iLO (KVM over IP with dedicated network interface) support...
Slackware update The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my...
2nd Aug 2015
24

Slackware update

from Jonas Hietala [alt+shift+b] in technology

2nd Aug 2015
The last time I (re)installed Slackware I documented what I did. Somehow I managed to really bork my installation and I decided to go through with a larger reinstallation once more. This is a log of some things I did differently. Kernel Before installing the kernel it’s nice to...
On joining Payfort “How hard could it possibly be?”, I remember thinking. Boy was I in for a treat.
24th Jul 2015
1

On joining Payfort

from Yazin Alirhayim [alt+shift+b] in technology

24th Jul 2015
“How hard could it possibly be?”, I remember thinking. Boy was I in for a treat.
How Live Chat Tools Impact Conversions and Why I Launched a Bad Variant Do those live chat tools actually help your business? Will they get you more customers by allowing...
21st Jul 2015
27

How Live Chat Tools Impact Conversions and Why I Launched a Bad Variant

from Comments for Lars Lofgren [alt+shift+b] in technology

21st Jul 2015
Do those live chat tools actually help your business? Will they get you more customers by allowing your visitors to chat directly with your team? Like most tests, you can come up with theories that sound great for both sides. Pro Live Chat Theory: Having a live chat tool helps...
Indices point between elements If you’re familiar with nearly any mainstream programming language, and I asked you to draw a...
17th Jul 2015
30

Indices point between elements

from Posts on Made of Bugs [alt+shift+b] in technology

17th Jul 2015
If you’re familiar with nearly any mainstream programming language, and I asked you to draw a diagram of an array, the array indices, and the array elements, odds are good you’d produce a diagram something like this: In this post, I want to persuade you to replace that image, or,...
Offset coordinates in Krita with Xinerama I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want...
5th Jul 2015
23

Offset coordinates in Krita with Xinerama

from Jonas Hietala [alt+shift+b] in technology

5th Jul 2015
I recently bought an Intuos Manga drawing tablet recently, because I got this fix idea that I want to learn how to draw. And what better way to do it than with a drawing tablet, while satisfying my need for new things? With little experience I boldly set forth and I found a...
More Luigi alternatives The workflow engine battle has intensified with some more interesting entries lately! Here are a...
2nd Jul 2015
25

More Luigi alternatives

from Home on Erik Bernhardsson [alt+shift+b] in technology

2nd Jul 2015
The workflow engine battle has intensified with some more interesting entries lately! Here are a couple I encountered in the last few days. I love that at least two of them are direct references to Luigi!
The hardest challenge about becoming a manager Note: this post is full of pseudo-psychology and highly speculative content. Like most fun stuff! I...
5th Jun 2015
26

The hardest challenge about becoming a manager

from Home on Erik Bernhardsson [alt+shift+b] in technology

5th Jun 2015
Note: this post is full of pseudo-psychology and highly speculative content. Like most fun stuff! I became a manager back in 2009. Being a developer is fun. You have this very tangible way to measure yourself.
A newer, better, ElevationDock Today we launched an update to our iPhone dock. It's wider to fit a bigger generation of phones,...
1st Jun 2015
23

A newer, better, ElevationDock

from Elevation Lab - Blog [alt+shift+b] in technology

1st Jun 2015
Today we launched an update to our iPhone dock. It's wider to fit a bigger generation of phones, ships with an Apple-certified Lightning connector (that you can assemble in seconds with the new tool-free back plate), and we've added some new lateral supports for added...
The 9 Delusions From the Halo Effect You’re being lied to. Well, not intentionally. We’re constantly being pinged with stories of...
31st May 2015
25

The 9 Delusions From the Halo Effect

from Comments for Lars Lofgren [alt+shift+b] in technology

31st May 2015
You’re being lied to. Well, not intentionally. We’re constantly being pinged with stories of companies that have rocketed to success. Especially in tech, there’s always another $1 billion unicorn around the corner. Uber, Facebook, Airbnb, Slack, Zenefits, Box, Shopify, yadda...
Netrunner Spring Tournament There was another, smaller, netrunner tournament about a week ago. I was looking forward to a very...
4th May 2015
21

Netrunner Spring Tournament

from Jonas Hietala [alt+shift+b] in technology

4th May 2015
There was another, smaller, netrunner tournament about a week ago. I was looking forward to a very casual setting but there were also some guys who came from… Västerås I think, but I’m not sure. We managed to scrape together 9 people at least, and I didn’t notice anyone bringing...
Annoy – now without Boost dependencies and with Python 3 Support Annoy is a C++/Python package I built for fast approximate nearest neighbor search in high...
3rd May 2015
24

Annoy – now without Boost dependencies and with Python 3 Support

from Home on Erik Bernhardsson [alt+shift+b] in technology

3rd May 2015
Annoy is a C++/Python package I built for fast approximate nearest neighbor search in high dimensional spaces. Spotify uses it a lot to find similar items. First, matrix factorization gives a low dimensional representation of each item (artist/album/track/user) so that every item...
Transparency, the cure to newspaperpreneurs We've all seen it: front page headlines of "visionaries" gazing into the abyss .. every sentence...
2nd May 2015
1

Transparency, the cure to newspaperpreneurs

from Yazin Alirhayim [alt+shift+b] in technology

2nd May 2015
We've all seen it: front page headlines of "visionaries" gazing into the abyss .. every sentence attesting to the incredible success that he/she's been able to conjure in the face adversity.
Norvig's claim that programming competitions correlate negatively with being good on the job I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation...
7th Apr 2015
25
7th Apr 2015
I saw a bunch of tweets over the weekend about Peter Norvig claiming there's a negative correlation between being good at programming competitions and being good at the job. There were some decent Hacker News comments on it.
Netrunner Lindhska Store Championship Örebro After the awesomeness during the previous store championship, I decided to go to the store...
2nd Apr 2015
20

Netrunner Lindhska Store Championship Örebro

from Jonas Hietala [alt+shift+b] in technology

2nd Apr 2015
After the awesomeness during the previous store championship, I decided to go to the store championship at Lindhska Bokhandel in Örebro. I brought a modified version of the same corp I used the last time, a Blue Sun kill deck and a new runner with Leela Patel. See the links for...
Pinterest open sources Pinball Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There's two...
14th Mar 2015
26

Pinterest open sources Pinball

from Home on Erik Bernhardsson [alt+shift+b] in technology

14th Mar 2015
Pinterest just open sourced Pinball which seems like an interesting Luigi alternative. There's two blog posts: Pinball: Building workflow management (from 2014) and Open-sourcing Pinball (from this week). The author has a comment in the comments thread on Hacker News:
The sorry state of CoW file systems I'd like to argue that both ZFS and BTRFS both are incomplete file systems with their own drawbacks...
1st Mar 2015
28

The sorry state of CoW file systems

from Louwrentius - Solar [alt+shift+b] in technology

1st Mar 2015
I'd like to argue that both ZFS and BTRFS both are incomplete file systems with their own drawbacks and that it may still be a long way off before we have something truly great. Both ZFS and BTRFS are two heroic feats of engineering, created by people who are probably ten times...
My first netrunner store championship My girlfriend has told me I get these narrow interests where I pour all my energy and thoughts into...
24th Feb 2015
25

My first netrunner store championship

from Jonas Hietala [alt+shift+b] in technology

24th Feb 2015
My girlfriend has told me I get these narrow interests where I pour all my energy and thoughts into and about 1,5 months ago I discovered Netrunner, a very awesome card game. Check out this how to play or team covenant’s channel if you want to know more. So this Sunday I went to...
Leaving Spotify Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an...
11th Feb 2015
21

Leaving Spotify

from Home on Erik Bernhardsson [alt+shift+b] in technology

11th Feb 2015
Febrary 6 was my last day at Spotify. In total I spent more than six years at Spotify and it was an amazing experience. I joined Spotify in Stockholm in 2008, mainly because a bunch of friends from programming competitions had joined already.
Regular Expression Search with Suffix Arrays Back in January of 2012, Russ Cox posted an excellent blog post detailing how Google Code Search had...
1st Feb 2015
25

Regular Expression Search with Suffix Arrays

from Posts on Made of Bugs [alt+shift+b] in technology

1st Feb 2015
Back in January of 2012, Russ Cox posted an excellent blog post detailing how Google Code Search had worked, using a trigram index. By that point, I’d already implemented early versions of my own livegrep source-code search engine, using a different indexing approach that I...
Configuring SCST iSCSI target on Debian Linux (Wheezy) My goal is to export ZFS zvol volumes through iSCSI to other machines. The platform I'm using is...
1st Feb 2015
22

Configuring SCST iSCSI target on Debian Linux (Wheezy)

from Louwrentius - Solar [alt+shift+b] in technology

1st Feb 2015
My goal is to export ZFS zvol volumes through iSCSI to other machines. The platform I'm using is Debian Wheezy. There are three iSCSI target solutions available for Linux: LIO IET SCST I've briefly played with LIO but the targetcli tool is interactive only. If you want to...
Announcing Apollo: a new Reddit app for iPhone I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called...
30th Jan 2015
46

Announcing Apollo: a new Reddit app for iPhone

from Christian Selig [alt+shift+b] in technology

30th Jan 2015
I’m really excited to unveil a project I’ve been working on for the last year or so. It’s called Apollo and it’s a new Reddit app for iPhone. I’ve been a Reddit user for about four years now, and the site is a constant source of interesting discussion, hilarity and news for me...
Scala Data Pipelines for Music Recommendations Chris Johnson‘s presentation from Data Day Texas:
13th Jan 2015
21

Scala Data Pipelines for Music Recommendations

from Home on Erik Bernhardsson [alt+shift+b] in technology

13th Jan 2015
Chris Johnson‘s presentation from Data Day Texas:
Configuring, attacking and securing VRRP on Linux The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple...
2nd Jan 2015
47

Configuring, attacking and securing VRRP on Linux

from Louwrentius - Solar [alt+shift+b] in technology

2nd Jan 2015
The VRRP or Virtual Router Redundancy Protocol helps you create a reliable network by using multiple routers in an active/passive configuration. If the primary router fails, the backup router takes over almost seamlessly. This is how VRRP works: Clients connect to a virtual...
The Design of Everyday Things My favorite book of the year. I’m not going to gush about it — enough others have in the decades of...
30th Dec 2014
1

The Design of Everyday Things

from Writing [alt+shift+b] in technology

30th Dec 2014
My favorite book of the year. I’m not going to gush about it — enough others have in the decades of its existence — but know that it is that good and that timeless. Norman changed the way I thought about technology.
The Design of Everyday Things My favorite book of the year. I’m not going to gush about it — enough others have in the decades of...
30th Dec 2014
1

The Design of Everyday Things

from Applied Cartography [alt+shift+b] in technology

30th Dec 2014
My favorite book of the year. I’m not going to gush about it — enough others have in the decades of its existence — but know that it is that good and that timeless. Norman changed the way I thought about technology.
A Christmas Game I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly...
26th Dec 2014
26

A Christmas Game

from Jonas Hietala [alt+shift+b] in technology

26th Dec 2014
I’m going through a bit of a boardgame stint, as I usually do during christmas time. I had exactly one thing on my wishlist for this christmas for my little brother: Ticket to Ride: Nordic Countries. Guess what? I got something from my wishlist! This was our 5th or 6th game (or...
Deep learning for… chess (addendum) My previous blog post about deep learning for chess blew up and made it to Hacker News and a couple...
8th Dec 2014
19

Deep learning for… chess (addendum)

from Home on Erik Bernhardsson [alt+shift+b] in technology

8th Dec 2014
My previous blog post about deep learning for chess blew up and made it to Hacker News and a couple of other places. One pretty amazing thing was that the Github repo got 150 stars overnight.
Hearthstone on Wine I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play...
12th Nov 2014
22

Hearthstone on Wine

from Jonas Hietala [alt+shift+b] in technology

12th Nov 2014
I like Hearthstone and recently the next expansion Goblins vs Gnomes so I wanted to install and play it. It didn’t work in vanilla wine, with a “time out error”, but I found a bug report which makes it work. Here’s a short summary: Get wine source from git. My version was...
Annoying blog post I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which...
11th Nov 2014
29

Annoying blog post

from Home on Erik Bernhardsson [alt+shift+b] in technology

11th Nov 2014
I spent a couple of hours this weekend going through some pull requests and issues to Annoy, which is an open source C++/Python library for Approximate Nearest Neighbor search. I set up Travis-CI integration and spent some time on one of the issues that multiple people had...
Getting the Sitecom AC600 Wi-Fi adapter running on Linux TL;DR Yes it works with some modifications of the driver source. A USB Wi-Fi adapter I used with a...
1st Nov 2014
22

Getting the Sitecom AC600 Wi-Fi adapter running on Linux

from Louwrentius - Solar [alt+shift+b] in technology

1st Nov 2014
TL;DR Yes it works with some modifications of the driver source. A USB Wi-Fi adapter I used with a Raspberry Pi broke as I dropped it on the floor, so I had to replace it. I just went to a local shop and bought the Sitecom AC600 adapter as that's what they had available (with...
Oh, Today is Diwali? Happy Diwali ! "First brush your teeth, then touch anything," Mommy used to say whenever I tried to sneak in to the...
22nd Oct 2014
17

Oh, Today is Diwali? Happy Diwali !

from Himanshu Mishra | orkohunter.net RSS Feed [alt+shift+b] in technology

22nd Oct 2014
"First brush your teeth, then touch anything," Mommy used to say whenever I tried to sneak in to the kitchen for the Diwali sweets. Today…
Detecting corporate fraud using Benford's law Note: This is a silly application. Don't take anything seriously. Benford's law describes a...
7th Oct 2014
23

Detecting corporate fraud using Benford's law

from Home on Erik Bernhardsson [alt+shift+b] in technology

7th Oct 2014
Note: This is a silly application. Don't take anything seriously. Benford's law describes a phenomenon where numbers in any data series will exhibit patterns in their first digit. For instance, if you took a list of the 1,000 longest rivers of Mongolia, or the average daily...
IDA Summer of Code 2014: Summary This is a wrap-up post of my entry to IDA Summer of Code this year. Quick stats 65 merged...
6th Oct 2014
23

IDA Summer of Code 2014: Summary

from Jonas Hietala [alt+shift+b] in technology

6th Oct 2014
This is a wrap-up post of my entry to IDA Summer of Code this year. Quick stats 65 merged commits 6790 lines added 2822 lines deleted 36 pull requests, 34 merged 12 pull requests directly fixing issues rest either documentation or cleanup 1 RFC submitted...
Do people in Bahrain buy online? The story of Canvas.bh How I started a business to answer this simple question. The story of Canvas.bh
9th Sep 2014
1

Do people in Bahrain buy online? The story of Canvas.bh

from Yazin Alirhayim [alt+shift+b] in technology

9th Sep 2014
How I started a business to answer this simple question. The story of Canvas.bh
Embedding youtube videos with Hakyll A while ago a made a timelapse of my entry to Ludum Dare. This is how I parse and embed videos using...
1st Sep 2014
25

Embedding youtube videos with Hakyll

from Jonas Hietala [alt+shift+b] in technology

1st Sep 2014
A while ago a made a timelapse of my entry to Ludum Dare. This is how I parse and embed videos using Hakyll. I don’t want to remember any special syntax for embedding, I don’t want to bother (remember?) to use something like {% youtube: <link> %} or whatever syntax we might find...
New reptyr feature: TTY-stealing Ever since I wrote reptyr, I’ve been frustrated by a number of issues in reptyr that I fundamentally...
20th Aug 2014
26

New reptyr feature: TTY-stealing

from Posts on Made of Bugs [alt+shift+b] in technology

20th Aug 2014
Ever since I wrote reptyr, I’ve been frustrated by a number of issues in reptyr that I fundamentally didn’t know how to solve within the reptyr model. Most annoyingly, reptyr fundamentally only worked on single processes, and could not attach processes with children, making it...
Running Theano on EC2 Inspired by Sander Dieleman's internship at Spotify, I've been playing around with deep learning...
19th Aug 2014
22

Running Theano on EC2

from Home on Erik Bernhardsson [alt+shift+b] in technology

19th Aug 2014
Inspired by Sander Dieleman's internship at Spotify, I've been playing around with deep learning using Theano. Theano is this Python package that lets you define symbolic expressions (cool), does automatic differentiation (really cool), and compiles it down into bytecode to run...
Vacation Finally back from a 2 week vacation up at Övertorneå. It’s been pretty great to be taken care of and...
14th Aug 2014
25

Vacation

from Jonas Hietala [alt+shift+b] in technology

14th Aug 2014
Finally back from a 2 week vacation up at Övertorneå. It’s been pretty great to be taken care of and not doing anything. Well, I did get my ass kicked in Terra Mystica and I played a bit of Minecraft, but still. We got some nice food and my in-laws and my parents were nice. I’m...
Game Engine Black Books I am almost done with the first volume of what I hope will become a serie called "Game Engine Black...
7th Aug 2014
1

Game Engine Black Books

from Fabien Sanglard [alt+shift+b] in technology

7th Aug 2014
I am almost done with the first volume of what I hope will become a serie called "Game Engine Black Book". Each book would take further what I tried to do with my articles: Explain simply, yet in great details, a legendary game engine. For the first one I decided to go with...
71 TiB DIY NAS based on ZFS on Linux This is my new 71 TiB DIY NAS. This server is the successor to my six year old, twenty drive 18 TB...
2nd Aug 2014
28

71 TiB DIY NAS based on ZFS on Linux

from Louwrentius - Solar [alt+shift+b] in technology

2nd Aug 2014
This is my new 71 TiB DIY NAS. This server is the successor to my six year old, twenty drive 18 TB NAS (17 TiB). With a storage capacity four times higher than the original and an incredible read (2.5 GB/s)/write (1.9 GB/s) performance, it's a worthy successor. Purpose The...
In defense of false positives (why you can't fail with A/B tests) Many years ago, I used to think that A/B tests were foolproof and all you need to do is compare the...
30th Jul 2014
24

In defense of false positives (why you can't fail with A/B tests)

from Home on Erik Bernhardsson [alt+shift+b] in technology

30th Jul 2014
Many years ago, I used to think that A/B tests were foolproof and all you need to do is compare the metrics for the two groups. The group with the highest conversion rate wins, right?
Achieving 2.3 GB/s with 16 x 4 TB drives I'm in the process of building a new storage server to replace my 18 TB NAS. The server is almost...
12th Jul 2014
21

Achieving 2.3 GB/s with 16 x 4 TB drives

from Louwrentius - Solar [alt+shift+b] in technology

12th Jul 2014
I'm in the process of building a new storage server to replace my 18 TB NAS. The server is almost finished, it's now down to adding disk drives. I'm using the HGST 4 TB 7200 RPM drive for this build (SKU 0S03356) (review). I have not bought all drives at once, but slowly adding...
Notifications with xmonad/irssi/urxvt So I’ve been idling on irc for years now and I’ve been using irssi for that, which works fine. I...
3rd Jul 2014
24

Notifications with xmonad/irssi/urxvt

from Jonas Hietala [alt+shift+b] in technology

3rd Jul 2014
So I’ve been idling on irc for years now and I’ve been using irssi for that, which works fine. I have not had notifications enabled, so I can see from the statusbar whenever someone messages me. As I’ve never been very active this has been fine, but now I figured it’s time to fix...
My experiences with DFS replication on Windows 2008 R2 If you are considering implementing DFS replication, consider using Windows 2012 R2 because DFS...
15th Jun 2014
27

My experiences with DFS replication on Windows 2008 R2

from Louwrentius - Solar [alt+shift+b] in technology

15th Jun 2014
If you are considering implementing DFS replication, consider using Windows 2012 R2 because DFS replication has been massively improved. It supports larger data sets and performance has dramatically been improved over Windows 2008 R2. I've implemented DFS replication to keep two...
IDA Summer of Code 2014 IDA Summer of Code is Linköping University’s response to Google Summer of Code. Students can send in...
11th Jun 2014
24

IDA Summer of Code 2014

from Jonas Hietala [alt+shift+b] in technology

11th Jun 2014
IDA Summer of Code is Linköping University’s response to Google Summer of Code. Students can send in a project of their choice and if selected they get paid to work on it for 4 weeks during the summer. In return the university get to show off the students and their projects in...
How to build up a data team (everything I ever learned about recruiting) During my time at Spotify, I've reviewed thousands of resumes and interviewed hundreds of people....
8th Jun 2014
26

How to build up a data team (everything I ever learned about recruiting)

from Home on Erik Bernhardsson [alt+shift+b] in technology

8th Jun 2014
During my time at Spotify, I've reviewed thousands of resumes and interviewed hundreds of people. Lots of them were rejected but lots of them also got offers. Finally, I've also had my share of offers rejected by the candidate.
Ludum Dare 29 Entry After months of procrastination it is time for me to enter Ludum Dare again! I am totally...
25th Apr 2014
23

Ludum Dare 29 Entry

from Jonas Hietala [alt+shift+b] in technology

25th Apr 2014
After months of procrastination it is time for me to enter Ludum Dare again! I am totally unprepared, but I did setup a setup which actually compiles. I never got audio to run but hopefully I can manage something. Repository: https://github.com/treeman/LD29. Going for C++ this...
Music recommendations using cover images (part 1) Scrolling through the Discover page on Spotify the other day it occurred to me that the album is in...
1st Apr 2014
22

Music recommendations using cover images (part 1)

from Home on Erik Bernhardsson [alt+shift+b] in technology

1st Apr 2014
Scrolling through the Discover page on Spotify the other day it occurred to me that the album is in fact a fairly strong visual proxy for what kind of content you can expect from it. I started wondering if the album cover can in fact be used for recommendations.
12th Mar 2014
How traffic shaping can dramatically improve internet responsiveness At work, access to the internet is provided by a 10 Mbit down / 1 Mbit up ADSL-connection. As we are...
8th Mar 2014
25

How traffic shaping can dramatically improve internet responsiveness

from Louwrentius - Solar [alt+shift+b] in technology

8th Mar 2014
At work, access to the internet is provided by a 10 Mbit down / 1 Mbit up ADSL-connection. As we are a mid-size company, bandwidth is clearly a severe constraint. But it was not our biggest problem. Even simple web-browsing was very slow. As I was setting up a monitoring...
Momentum strategies Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday...
3rd Mar 2014
22

Momentum strategies

from Home on Erik Bernhardsson [alt+shift+b] in technology

3rd Mar 2014
Haven't posted anything in ages, so here's a quick hack I threw together in Python on a Sunday night. Basically I wanted to know whether momentum strategies work well for international stock indexes. I spent a bit of time putting together a strategy that buys the stock index if...
Algorithms and Data structures books: One size doesn't fit them all Over the years running this moderately popular website, I have been asked many times what is the...
14th Feb 2014
1

Algorithms and Data structures books: One size doesn't fit them all

from Fabien Sanglard [alt+shift+b] in technology

14th Feb 2014
Over the years running this moderately popular website, I have been asked many times what is the best book about Algorithms and Data Structures. The answer is always "It depends" ! It depends on how the programmer's brain works and what kind of notation he is comfortable with....
Creating a basic ZFS file system on Linux Here are some notes on creating a basic ZFS file system on Linux, using ZFS on Linux. I'm...
1st Feb 2014
25

Creating a basic ZFS file system on Linux

from Louwrentius - Solar [alt+shift+b] in technology

1st Feb 2014
Here are some notes on creating a basic ZFS file system on Linux, using ZFS on Linux. I'm documenting the scenario where I just want to create a file system that can tollerate at least a single drive failure and can be shared over NFS. Identify the drives you want to use for the...
Benchmarking nearest neighbor libraries in Python Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in...
12th Jan 2014
30

Benchmarking nearest neighbor libraries in Python

from Home on Erik Bernhardsson [alt+shift+b] in technology

12th Jan 2014
Radim Rehurek has put together an excellent summary of approximate nearest neighbor libraries in Python. This is exciting, because one of the libraries he's covering, annoy, was built by me. After introducing the problem, he goes through the list of contestants and sticks with...
Achieving 450 MB/s network file transfers using Linux Bonding Linux Bonding In this article I'd like to show the results of using regular 1 Gigabit network...
7th Jan 2014
47

Achieving 450 MB/s network file transfers using Linux Bonding

from Louwrentius - Solar [alt+shift+b] in technology

7th Jan 2014
Linux Bonding In this article I'd like to show the results of using regular 1 Gigabit network connections to achieve 450 MB/s file transfers over NFS. I'm again using Linux interface bonding for this purpose. Linux interface bonding can be used to create a virtual network...
2013 Read Books I actually read more books in 2013 than in 2012. In a somewhat unorganized list: Fiction Livet...
3rd Jan 2014
19

2013 Read Books

from Jonas Hietala [alt+shift+b] in technology

3rd Jan 2014
I actually read more books in 2013 than in 2012. In a somewhat unorganized list: Fiction Livet Deluxe - Jens Lapidius Escape from camp 14 - Blaine Harden Wonderful. A great book. Edge - Jeffery Deaver Dollar - Lee Child Gisslan - Lee Child Bränd - Lee Child Besökaren - Lee...
Lightweight Linux Kernel Development with KVM I don’t do a ton of Linux kernel development these days, but I’ve done a fair bit in the past, and...
30th Dec 2013
23

Lightweight Linux Kernel Development with KVM

from Posts on Made of Bugs [alt+shift+b] in technology

30th Dec 2013
I don’t do a ton of Linux kernel development these days, but I’ve done a fair bit in the past, and picked up a number of useful techniques for doing kernel development in a relatively painless fashion. This blog post is a writeup of the tools and techniques I use when developing...
Final Fantasy IX I’ve noticed that if I want to give something a perfect score but know that it’s not a “perfect”...
28th Dec 2013
1

Final Fantasy IX

from Writing [alt+shift+b] in technology

28th Dec 2013
I’ve noticed that if I want to give something a perfect score but know that it’s not a “perfect” thing, I always start off with “okay, so, it has flaws.”
Final Fantasy IX I’ve noticed that if I want to give something a perfect score but know that it’s not a “perfect”...
28th Dec 2013
1

Final Fantasy IX

from Applied Cartography [alt+shift+b] in technology

28th Dec 2013
I’ve noticed that if I want to give something a perfect score but know that it’s not a “perfect” thing, I always start off with “okay, so, it has flaws.”
An affordable server platform based on server-grade hardware Updated post (June 2014) found HERE There are some reasons why you should consider buying true...
13th Dec 2013
27

An affordable server platform based on server-grade hardware

from Louwrentius - Solar [alt+shift+b] in technology

13th Dec 2013
Updated post (June 2014) found HERE There are some reasons why you should consider buying true server-grade harware when building a server, wether it's for home or business use. This is why I want to introduce you to the Supermicro X9SCM-F motherboard. This motherboard costs...
Bagging as a regularizer One thing I encountered today was a trick using bagging as a way to go beyond a point estimate and...
6th Dec 2013
20

Bagging as a regularizer

from Home on Erik Bernhardsson [alt+shift+b] in technology

6th Dec 2013
One thing I encountered today was a trick using bagging as a way to go beyond a point estimate and get an approximation for the full distribution. This can then be used to penalize predictions with larger uncertainty, which helps reducing false positives.
Eztables: simple yet powerful firewall configuration for Linux I've created and released Eztables on Github. Anyone who ever has a need to setup a firewall on...
16th Nov 2013
21

Eztables: simple yet powerful firewall configuration for Linux

from Louwrentius - Solar [alt+shift+b] in technology

16th Nov 2013
I've created and released Eztables on Github. Anyone who ever has a need to setup a firewall on Linux may be interested in this project. It doesn't matter if you need to protect a laptop, server or want to setup a network firewall. Eztables supports it all. If you're not afraid...
Model benchmarks A lot of people have asked me what models we use for recommendations at Spotify so I wanted to share...
2nd Nov 2013
24

Model benchmarks

from Home on Erik Bernhardsson [alt+shift+b] in technology

2nd Nov 2013
A lot of people have asked me what models we use for recommendations at Spotify so I wanted to share some insights. Here's benchmarks for some models. Note that we don't use all of them in production.
statself.com Btw I just put something up online that I spent a couple of evenings in my couch putting together:...
18th Oct 2013
37

statself.com

from Home on Erik Bernhardsson [alt+shift+b] in technology

18th Oct 2013
Btw I just put something up online that I spent a couple of evenings in my couch putting together: it's a website where you can track any numerical data on the web. Want to know how many Twitter followers you have?
7th Oct 2013
Script that shows relevant disk information I wrote a small Python script called 'showdisks' that displays relevant information about any...
1st Oct 2013
24

Script that shows relevant disk information

from Louwrentius - Solar [alt+shift+b] in technology

1st Oct 2013
I wrote a small Python script called 'showdisks' that displays relevant information about any physical storage devices supported by hdparm. Information such as model and capacity are shown, but also controller and device path. This script only requires python and hdparm. I hope...
Finding a good blu-ray player for Mac OS X I find playing a Blu-ray movie on my Mac cumbersome. I've been using Plex, XBMC and VLC but these...
22nd Sep 2013
22

Finding a good blu-ray player for Mac OS X

from Louwrentius - Solar [alt+shift+b] in technology

22nd Sep 2013
I find playing a Blu-ray movie on my Mac cumbersome. I've been using Plex, XBMC and VLC but these free open-source products are all a usability nightmare. To play a Blu-ray movie, you have to perform these steps: right-click on the BDMV file choose 'show packet contents' go to...
More Doom III BFG Documentation id Software developer Jan Paul Van Waveren (a.k.a Mr Elusive) is sharing some more of the knowledge...
4th Sep 2013
1

More Doom III BFG Documentation

from Fabien Sanglard [alt+shift+b] in technology

4th Sep 2013
id Software developer Jan Paul Van Waveren (a.k.a Mr Elusive) is sharing some more of the knowledge gained while working on Doom 3 BFG. This part focuses highly on the choice of data-structures and how paramount cacheline are to performances.
Vote for our SXSW panel! If you have a few minutes, you should check out mine and Chris Johnson‘s panel proposal. Go here and...
4th Sep 2013
27

Vote for our SXSW panel!

from Home on Erik Bernhardsson [alt+shift+b] in technology

4th Sep 2013
If you have a few minutes, you should check out mine and Chris Johnson‘s panel proposal. Go here and vote: http://panelpicker.sxsw.com/vote/24504 Algorithmic Music Discovery at Spotify ****Spotify crunches hundreds of billions of streams to analyze user's music taste and provide...
16th Aug 2013
I switched my blog from Blogofile to Pelican This blog is a static website, which makes it fast, simple and secure. It was generated by Blogofile...
6th Aug 2013
21

I switched my blog from Blogofile to Pelican

from Louwrentius - Solar [alt+shift+b] in technology

6th Aug 2013
This blog is a static website, which makes it fast, simple and secure. It was generated by Blogofile but I switched to Pelican. Blogofile has seen almost no updates over the years and I consider the project dead. Realising that blogofile is dead, I decided to look around for...
ML+Hadoop at NYC Predictive Analytics I was just at the NYC Predictive Analytics meetup talking about how we build machine learning...
3rd Aug 2013
20

ML+Hadoop at NYC Predictive Analytics

from Home on Erik Bernhardsson [alt+shift+b] in technology

3rd Aug 2013
I was just at the NYC Predictive Analytics meetup talking about how we build machine learning algorithms using Hadoop to power music recommendations. Great meetup, where we had two speakers, me and Blake Shaw from Foursquare.
Optimizing over multinomial distributions Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 +...
24th Jul 2013
27

Optimizing over multinomial distributions

from Home on Erik Bernhardsson [alt+shift+b] in technology

24th Jul 2013
Sometimes you have to maximize some function $$ f(w_1, w_2, ldots, w_n) $$ where $$ w_1 + w_2 + ldots + w_n = 1 $$ and $$ 0 le w_i le 1 $$ . Usually, $$ f $$ is concave and differentiable, so there's one unique global maximum and you can solve it by applying gradient ascent.
Using iSCSI with time machine and Super Duper In the past, as a Mac user, I've used separate external drives for Time Machine backups and Super...
21st Jul 2013
25

Using iSCSI with time machine and Super Duper

from Louwrentius - Solar [alt+shift+b] in technology

21st Jul 2013
In the past, as a Mac user, I've used separate external drives for Time Machine backups and Super Duper clones but I'm not happy with that. External hard drives make noise and create clutter. I'd like to move away all my storage from my living room (or home office) and put it in...
Why I believe the new Mac Pro won't be a great machine for gaming In Accidental Tech Podcast episode 18 (love the show), I learned that John Siracusa was thinking...
22nd Jun 2013
22

Why I believe the new Mac Pro won't be a great machine for gaming

from Louwrentius - Solar [alt+shift+b] in technology

22nd Jun 2013
In Accidental Tech Podcast episode 18 (love the show), I learned that John Siracusa was thinking about buying a new Mac Pro for gaming. I believe that gaming on the new Mac Pro will be a mediocre experience. Driver support: as John mentioned himself, the video cards are...
Prince Of Persia Code Review On Apr 17, 2012 Jordan Mechner released the source code of Prince of Persia. I immediately took at...
14th Jun 2013
1

Prince Of Persia Code Review

from Fabien Sanglard [alt+shift+b] in technology

14th Jun 2013
On Apr 17, 2012 Jordan Mechner released the source code of Prince of Persia. I immediately took at look at it!
Wikiphilia I've been obsessed with Wikipedia for the past ten years. Occasionally I find some good articles...
2nd Jun 2013
20

Wikiphilia

from Home on Erik Bernhardsson [alt+shift+b] in technology

2nd Jun 2013
I've been obsessed with Wikipedia for the past ten years. Occasionally I find some good articles worth sharing and that's why I created the wikiphilia Twitter handle. Just a long stream of stuff that for one reason or another may be interesting.
23rd May 2013
Creating storage benchmark charts with FIO and GNUplot Edit 2019: I've made a new tool called 'fio-plot'to create various graphs. I use FIO to perform...
22nd May 2013
31

Creating storage benchmark charts with FIO and GNUplot

from Louwrentius - Solar [alt+shift+b] in technology

22nd May 2013
Edit 2019: I've made a new tool called 'fio-plot'to create various graphs. I use FIO to perform storage IO performance benchmarks. FIO does provide a script called "fio_generate_plots" which generates PNG or JPG based charts based on the data generated by FIO. The charts are...
Snakebite Just promoting Spotify stuff here: check out the Snakebite repo on Github, written by Wouter de Bie....
7th May 2013
22

Snakebite

from Home on Erik Bernhardsson [alt+shift+b] in technology

7th May 2013
Just promoting Spotify stuff here: check out the Snakebite repo on Github, written by Wouter de Bie. It's a super fast tool to access HDFS over CLI/Python, by accessing the namenode directly over sockets/protobuf. Spotify's developer blog features a nice blog post outlining what...
Minecraft Server Hosting I play the phenomena that is Minecraft on and off. Sometimes the laid back building or the exploring...
22nd Apr 2013
21

Minecraft Server Hosting

from Jonas Hietala [alt+shift+b] in technology

22nd Apr 2013
I play the phenomena that is Minecraft on and off. Sometimes the laid back building or the exploring is just what I need. Sometimes I can challange myself to build cool complex stuff and I’m even an avid follower of Doc’M and Etho and the other mindcrackers over at the youtube....
Annoy Annoy is a simple package to find approximate nearest neighbors (ANN) that I just put on Github. I'm...
12th Apr 2013
23

Annoy

from Home on Erik Bernhardsson [alt+shift+b] in technology

12th Apr 2013
Annoy is a simple package to find approximate nearest neighbors (ANN) that I just put on Github. I'm not trying to compete with existing packages, but Annoy has a couple of features that makes it pretty useful.
Storage and I/O: reads vs. writes There is a fundamental difference between a read operation and a write operation. Storage can lie...
1st Apr 2013
25

Storage and I/O: reads vs. writes

from Louwrentius - Solar [alt+shift+b] in technology

1st Apr 2013
There is a fundamental difference between a read operation and a write operation. Storage can lie about completing a write operation, but it can never lie about completing a read operation. Therefore read and writes have different characteristics. This is what I've learned. About...
More Luigi! Elias Freider just talked about Luigi at PyData 2013: The presentation above is much better than one...
22nd Mar 2013
26

More Luigi!

from Home on Erik Bernhardsson [alt+shift+b] in technology

22nd Mar 2013
Elias Freider just talked about Luigi at PyData 2013: The presentation above is much better than one I put together a few weeks ago. In case anyone is interested I'll include it too:
Tracking down a memory leak in Ruby's EventMachine At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services....
7th Mar 2013
21

Tracking down a memory leak in Ruby's EventMachine

from Posts on Made of Bugs [alt+shift+b] in technology

7th Mar 2013
At Stripe, we rely heavily on ruby and EventMachine to power various internal and external services. Over the last several months, we’ve known that one such service suffered from a gradual memory leak, that would cause its memory usage to gradually balloon from a normal ~50MB to...
FTL got a new victim Faster than Light the great game I lost a ton of time on, has found a new victim. It’s not someone...
6th Mar 2013
22

FTL got a new victim

from Jonas Hietala [alt+shift+b] in technology

6th Mar 2013
Faster than Light the great game I lost a ton of time on, has found a new victim. It’s not someone you’d expect, it’s even someone who said: “What a bad game” when she saw me playing it. But nevertheless this Saturday she played it more than 2.5 hours! I told Veronica I wanted...
Faster than Light So I returned to Faster than Light again this weekend, this time for real. I bought it when it came...
12th Feb 2013
23

Faster than Light

from Jonas Hietala [alt+shift+b] in technology

12th Feb 2013
So I returned to Faster than Light again this weekend, this time for real. I bought it when it came out and I played it only in passing, but this weekend I played it a ton. Aaahh a new beginning in FTL. Will it be death once more I generally don’t like games where you have to...
I'm featured in Mashable This article from today in Mashable describes some of the fun stuff I get to work with: Erik...
6th Feb 2013
23

I'm featured in Mashable

from Home on Erik Bernhardsson [alt+shift+b] in technology

6th Feb 2013
This article from today in Mashable describes some of the fun stuff I get to work with: Erik Bernhardsson is technical lead at Spotify, where he helped to build a music recommendation system based on large-scale machine learning algorithms, mainly matrix factorization of big...
17th Jan 2013
1

The best Tech books

from Fabien Sanglard [alt+shift+b] in technology

17th Jan 2013
More...
Momentum and mean reversion might just be volatility bias The Economist just published an article called The best, the worst and the ugly. By looking at...
13th Jan 2013
22

Momentum and mean reversion might just be volatility bias

from Home on Erik Bernhardsson [alt+shift+b] in technology

13th Jan 2013
The Economist just published an article called The best, the worst and the ugly. By looking at historical performance for mutual funds, they find strong support for momentum and mean reversion. Picking the best or the worst fund over the previous five years gives great returns...
Verge interview at CES 2013 2025 Note - probably the last video of me without a beard!
9th Jan 2013
1

Verge interview at CES 2013

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

9th Jan 2013
2025 Note - probably the last video of me without a beard!
A Vacation Filled with Obsession A nice thing about school are the nice long vacations. Directly after my last exam we went north to...
7th Jan 2013
22

A Vacation Filled with Obsession

from Jonas Hietala [alt+shift+b] in technology

7th Jan 2013
A nice thing about school are the nice long vacations. Directly after my last exam we went north to our dear home village Övertorneå and spent two weeks celebrating Christmas and New Years Eve. What did we do? I practiced some obsessive behavior with Power Grid and Minecraft (and...
25th Dec 2012
1

Game timers: Issues and solutions

from Fabien Sanglard [alt+shift+b] in technology

25th Dec 2012
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Statistics showing relevance of caching proxy In this day and age of dynamic web content, how relevant can a caching proxy server be? I believe...
18th Dec 2012
22

Statistics showing relevance of caching proxy

from Louwrentius - Solar [alt+shift+b] in technology

18th Dec 2012
In this day and age of dynamic web content, how relevant can a caching proxy server be? I believe that the answer could be: quite! I have installed a caching proxy server based on Squid, which is now used within my company. It also does content scanning using squidclamav and...
Calculating cosine similarities using dimensionality reduction This was posted on the Twitter Engineering blog a few days ago: Dimension Independent Similarity...
5th Dec 2012
23

Calculating cosine similarities using dimensionality reduction

from Home on Erik Bernhardsson [alt+shift+b] in technology

5th Dec 2012
This was posted on the Twitter Engineering blog a few days ago: Dimension Independent Similarity Computation (DISCO) I just glanced at the paper, and there's some cool stuff going on from a theoretical perspective. What I'm curious about is why they didn't decide to use...
5 Kup After a season with very bad attendence, I blame school and lack of motivation, I still went to...
2nd Dec 2012
26

5 Kup

from Jonas Hietala [alt+shift+b] in technology

2nd Dec 2012
After a season with very bad attendence, I blame school and lack of motivation, I still went to grading. I slept well but I was super stressed all weekend so I had to constantly run to the bathroom and I couldn’t eat lunch or breakfast properly, and I don’t usually get...
Tumblr's awesome project names Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about...
18th Nov 2012
27

Tumblr's awesome project names

from Home on Erik Bernhardsson [alt+shift+b] in technology

18th Nov 2012
Not sure how I managed to miss this, but I'm watching this Tumblr presentation and they talk about their projects named after Arrested Development topics: Gob, Parmesan, Buster, Jetpants, Oscar, George and Motherboy. Still, the best software project name is probably still Apple's...
Good and Bad Programmers Every now and day blog posts about what it takes to be a good programmer or how you figure out if...
8th Nov 2012
22

Good and Bad Programmers

from Jonas Hietala [alt+shift+b] in technology

8th Nov 2012
Every now and day blog posts about what it takes to be a good programmer or how you figure out if someone is a bad programmer arrives. There’s always talk about how you find the good programmers in interviews and the topic is always hot in schools and universities. Today I read...
Personal Security: erase your computer or phone before repair Computer nerds are self sufficient when it comes to fixing their computer. Non-computer experts have...
4th Nov 2012
23

Personal Security: erase your computer or phone before repair

from Louwrentius - Solar [alt+shift+b] in technology

4th Nov 2012
Computer nerds are self sufficient when it comes to fixing their computer. Non-computer experts have to find some other person with greater computer knowledge to repair their computer or phone. That person will then be able to access all data stored on their computer or phone. By...
Luigi: complex pipelines of tasks in Python I'm shamelessly promoting my first major open source project. Luigi is a Python module that helps...
21st Oct 2012
24

Luigi: complex pipelines of tasks in Python

from Home on Erik Bernhardsson [alt+shift+b] in technology

21st Oct 2012
I'm shamelessly promoting my first major open source project. Luigi is a Python module that helps you build complex pipelines of batch jobs, handle dependency resolution, and create visualizations to help manage multiple workflows. It also comes with Hadoop support built in...
Experiences running ZFS on Ubuntu Linux 12.04 I really like ZFS because with current data sets, I do believe that data corruption may start...
18th Oct 2012
20

Experiences running ZFS on Ubuntu Linux 12.04

from Louwrentius - Solar [alt+shift+b] in technology

18th Oct 2012
I really like ZFS because with current data sets, I do believe that data corruption may start becoming an issue. The thing is that the license under which ZFS is released does not permit it to be used in the Linux kernel. That's quite unfortunate, but there is hope. There is a...
Moving private repositories to Bitbucket Long overdue, I recently moved my private repositories from Github to Bitbucket. Github is great of...
10th Oct 2012
21

Moving private repositories to Bitbucket

from Jonas Hietala [alt+shift+b] in technology

10th Oct 2012
Long overdue, I recently moved my private repositories from Github to Bitbucket. Github is great of courseand they even gave me a free students account and I still host all my public repositories there. Still, Bitbucket has unlimited free private repositories for up to 5 users...
Compiling Multicore PAR2 on Ubuntu 12.04 LTS Precise Pangolin If you want to compile PAR2 with multicore support on Linux, it may not work right away from source....
15th Sep 2012
22

Compiling Multicore PAR2 on Ubuntu 12.04 LTS Precise Pangolin

from Louwrentius - Solar [alt+shift+b] in technology

15th Sep 2012
If you want to compile PAR2 with multicore support on Linux, it may not work right away from source. I used this version of PAR2 with multicore support. Update 2015: the original link is dead, I foud a copy of the source and put it on my own site here for you to download. First,...
Entering Pintos First week of school is over and it’s been full throttle from the start, in a good way. We’re having...
3rd Sep 2012
20

Entering Pintos

from Jonas Hietala [alt+shift+b] in technology

3rd Sep 2012
First week of school is over and it’s been full throttle from the start, in a good way. We’re having four courses and for once I like them all. We have an interesting math course, a useful course “Software Development in Theory” (boring but useful) and a big project course where...
Setting up a Squid proxy with Clamav anti-virus using c-icap Security is all about a defence-in-depth strategy. Create multiple layers of defence. Every layer...
26th Aug 2012
28

Setting up a Squid proxy with Clamav anti-virus using c-icap

from Louwrentius - Solar [alt+shift+b] in technology

26th Aug 2012
Security is all about a defence-in-depth strategy. Create multiple layers of defence. Every layer presenting a different set of challenges, requiring different skill sets and technology. So every layer will increase the time and effort to compromise your environment. A...
Ugly and Slow Progress Ludum Dare is coming along… Slowly. The rust on me is probably so brown it’s nearly black. But I...
25th Aug 2012
28

Ugly and Slow Progress

from Jonas Hietala [alt+shift+b] in technology

25th Aug 2012
Ludum Dare is coming along… Slowly. The rust on me is probably so brown it’s nearly black. But I have an idea and it might be good, all I need to do is execute it. Right? Programmer graphics coming to take you away! Anyway it’s going to be a risk-like game with a twist: you can...
Fully unattended deployment of Windows clients using limited resources Introduction Anyone who ever installed Windows on a computer by hand must have wished for a solution...
7th Jul 2012
27

Fully unattended deployment of Windows clients using limited resources

from Louwrentius - Solar [alt+shift+b] in technology

7th Jul 2012
Introduction Anyone who ever installed Windows on a computer by hand must have wished for a solution that automate this task. It's just waiting a lot and pressing a button now and then. But installing the operating system itself is only the beginning. Once installed, you need to...
1

Kickstarter 1 Campaign Updates

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

20th Jun 2012
Understanding Windows KMS and MAK volume license activation Introduction If you have to administer a large number of PCs running Windows, you will end up...
9th Jun 2012
25

Understanding Windows KMS and MAK volume license activation

from Louwrentius - Solar [alt+shift+b] in technology

9th Jun 2012
Introduction If you have to administer a large number of PCs running Windows, you will end up creating an automated deployment platform for your Windows clients. You may implement something like Windows Deployment Services. I used WDS to create a fully automated installation of...
Doom3 Source Code Review On November 23, 2011 id Software maintained the tradition and released the source code of their...
8th Jun 2012
1

Doom3 Source Code Review

from Fabien Sanglard [alt+shift+b] in technology

8th Jun 2012
On November 23, 2011 id Software maintained the tradition and released the source code of their previous engine. This time is was the turn of idTech4 which powered Prey, Quake 4 and of course Doom 3. Within hours the GitHub repository was forked more than 400 times and...
Improving web application security by implementing database security Security is about defense-in-depth. It bogles my mind why it is so difficult to implement...
17th May 2012
26

Improving web application security by implementing database security

from Louwrentius - Solar [alt+shift+b] in technology

17th May 2012
Security is about defense-in-depth. It bogles my mind why it is so difficult to implement defense-in-depth security in web applications. 99.9% of applications use a single database account, with root-like privileges. Easiest for the developer of course, and the database is just a...
Cracking Kevin Mitnick's Ghost In Tthe Wires Paperback Edition I received yesterday a copy of Ghost In The Wire Paperback edition. Kevin Mitnick seems to have...
9th May 2012
1

Cracking Kevin Mitnick's Ghost In Tthe Wires Paperback Edition

from Fabien Sanglard [alt+shift+b] in technology

9th May 2012
I received yesterday a copy of Ghost In The Wire Paperback edition. Kevin Mitnick seems to have updated all of the challenges found at the beginning of each chapters. Since they are all available on book.google.com preview I don't think it is a big deal to publish and discuss our...
Be A Donor This is probably the proudest moment of my Computer Science career so far: On April 17th, 2012 the...
22nd Apr 2012
1

Be A Donor

from Fabien Sanglard [alt+shift+b] in technology

22nd Apr 2012
This is probably the proudest moment of my Computer Science career so far: On April 17th, 2012 the Government of Ontario released the Mobile Website I designed and implemented for the major part of 2011. Beadonor.ca allows you reinforce your decision to be an organ donor. I feel...
Introducing Pebble - Hackable E-Paper Watch for iPhone and Android Our first Kickstarter launch! Check out the Hacker News thread for some lively discussion
11th Apr 2012
1

Introducing Pebble - Hackable E-Paper Watch for iPhone and Android

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

11th Apr 2012
Our first Kickstarter launch! Check out the Hacker News thread for some lively discussion
Why security is all about defense in depth Many people asume that if you regularly update your computer, you are safe from hackers. But nothing...
23rd Mar 2012
22

Why security is all about defense in depth

from Louwrentius - Solar [alt+shift+b] in technology

23rd Mar 2012
Many people asume that if you regularly update your computer, you are safe from hackers. But nothing could be further from the truth. Keeping your systems up-to-date only protects you against exploits for publicly known vulnerabilities. Your systems are still not protected...
SSD reboot your thinking How SDD drives took my breath away...
17th Mar 2012
1

SSD reboot your thinking

from Fabien Sanglard [alt+shift+b] in technology

17th Mar 2012
How SDD drives took my breath away...
Why node.js is cool (it's not about performance) For the past N months, it seems like there is no new technology stack that is either hotter or more...
12th Mar 2012
23

Why node.js is cool (it's not about performance)

from Posts on Made of Bugs [alt+shift+b] in technology

12th Mar 2012
For the past N months, it seems like there is no new technology stack that is either hotter or more controversial than node.js. node.js is cancer! node.js cures cancer! node.js is bad ass rock star tech!. I myself have given node.js a lot of shit, often involving the phrase...
Changes A lot has been going on lately and it feels like I’m being swamped. I can’t complain too much but...
4th Mar 2012
26

Changes

from Jonas Hietala [alt+shift+b] in technology

4th Mar 2012
A lot has been going on lately and it feels like I’m being swamped. I can’t complain too much but there are things I’d like to change after the exam period this week. Program more! nothing since christmas or someting. I need to finish: Ada project for school. Can’t believe I...
Android Shmup Six months ago I released the source code of "SHMUP": a modest indie 3D shoot'em up designed for...
23rd Feb 2012
1

Android Shmup

from Fabien Sanglard [alt+shift+b] in technology

23rd Feb 2012
Six months ago I released the source code of "SHMUP": a modest indie 3D shoot'em up designed for iOS. Since it did honorably on the Apple Appstore I offered anyone to port it to Android Appmarket for a 50/50 revenues split. Two developers consecutively took on the challenge only...
Example of a home networking setup with VLANs Updated October 24, 2012, see below. This post is a description of my home network setup based on...
5th Feb 2012
88

Example of a home networking setup with VLANs

from Louwrentius - Solar [alt+shift+b] in technology

5th Feb 2012
Updated October 24, 2012, see below. This post is a description of my home network setup based on gigabit ethernet. I did a non-standard trick with VLANs that may also be of interest to other people. I'm going to start with a diagram of the network. Just take a look (click to...
A Simple Thought I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about...
2nd Feb 2012
20

A Simple Thought

from Jonas Hietala [alt+shift+b] in technology

2nd Feb 2012
I wrote that we where doing some microprogramming, making the processor work etc. We had a lab about that yesterday and I was very, very nervous. The preparations weren’t that hard, but they where very bothersome. Converting the instructions to binary/hex by hand is never nice....
1

Final post on the inPulse blog

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

2nd Feb 2012
Linux Iptables Firewall Script released on Google code I have released LIFS, the Linux Iptables Firewall Script. This script allows you to setup a firewall...
8th Jan 2012
23

Linux Iptables Firewall Script released on Google code

from Louwrentius - Solar [alt+shift+b] in technology

8th Jan 2012
I have released LIFS, the Linux Iptables Firewall Script. This script allows you to setup a firewall within minutes. It is easy to use, yet very powerful. It uses Iptables and even improves upon some limitations of Iptables. Every person who has to maintain some kind of...
2011 in Review It’s time to wrap up the year that’s been. Be warned for slight ego boosting here. 2011 Geek...
4th Jan 2012
25

2011 in Review

from Jonas Hietala [alt+shift+b] in technology

4th Jan 2012
It’s time to wrap up the year that’s been. Be warned for slight ego boosting here. 2011 Geek Achievements Wrote three games this year: My Minions Grand Thief Arto Sat-E Bought a new computer! Bought a mechanical keyboard. Bought custom Starcraft 2 keycaps for the...
Setting up a VPN with your iPhone using L2TP, IPSec and Linux This blogpost discusses how to setup an IPSec-based VPN between your iPhone and a Linux server....
11th Dec 2011
22

Setting up a VPN with your iPhone using L2TP, IPSec and Linux

from Louwrentius - Solar [alt+shift+b] in technology

11th Dec 2011
This blogpost discusses how to setup an IPSec-based VPN between your iPhone and a Linux server. Updated 16 October 2012 - now compatible with Ubuntu 12.04 LTS IMPORTANT! (update January 2013) I find using OpenVPN with the new iOS OpenVPN client a way better solution. OpenVPN...
Finishing Stuff I haven’t done much blogging or game programming in a while but instead I’ve finished some school...
7th Dec 2011
21

Finishing Stuff

from Jonas Hietala [alt+shift+b] in technology

7th Dec 2011
I haven’t done much blogging or game programming in a while but instead I’ve finished some school stuff. We completed the assembly course labs, which were pretty fun actually, and I managed to finally complete the electronics course I’ve been holding off on for like forever… But...
29th Nov 2011
1

Show HN: Version 1.1 of our $99 hackable Bluetooth smartwatch

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

29th Nov 2011
Comment (65 already) on Hacker News
Done this, done that. What now? Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and...
5th Nov 2011
24

Done this, done that. What now?

from Jonas Hietala [alt+shift+b] in technology

5th Nov 2011
Finished and uploaded our java game Grand Thief Arto, done an exam (didn’t quite go as intended) and starting some new courses in school. I’m liking my choice of Computer Science more and more. Data structures and Algorithms was a super fun course, I actually ordered a new book...
The End of the Tunnel Lately I’ve been feeling like there’s been a shit-ton of stuff going on, quite a turn-around from...
19th Oct 2011
21

The End of the Tunnel

from Jonas Hietala [alt+shift+b] in technology

19th Oct 2011
Lately I’ve been feeling like there’s been a shit-ton of stuff going on, quite a turn-around from the last time. One course about data structure and algorithms (super fun to be honest) has wrapped up. We thought we were ahead with the assignments but in the end it got very...
Candid experiences starting a hardware startup 2025 Note - I gave this talk at the Hacker Dojo in Mountain View about 6 months before we launched...
4th Oct 2011
1

Candid experiences starting a hardware startup

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

4th Oct 2011
2025 Note - I gave this talk at the Hacker Dojo in Mountain View about 6 months before we launched Pebble on Kickstarter. I was 4 years into…
Is there an easy and secure way to transfer files? Many organisations just assume that the local physical network is trusted. That their network...
17th Sep 2011
22

Is there an easy and secure way to transfer files?

from Louwrentius - Solar [alt+shift+b] in technology

17th Sep 2011
Many organisations just assume that the local physical network is trusted. That their network equipment is physically secure and that it is impossible for an attacker to get on the wire and start eavesdropping on network traffic. Many organisations do not seem too concerned about...
11th Sep 2011
Back to Training Five days of school now and things are starting to settle down a bit. The courses are pretty cool;...
4th Sep 2011
23

Back to Training

from Jonas Hietala [alt+shift+b] in technology

4th Sep 2011
Five days of school now and things are starting to settle down a bit. The courses are pretty cool; we have linear algebra which is pretty interesting, we have a java course where we’re going to make a game (!) and one about structures and algorithms. Pretty promising but we’ll...
Resurrection Aah what a nice summer! It was nice to be back in Övertorneå, doing nothing in particular. Just not...
18th Aug 2011
19

Resurrection

from Jonas Hietala [alt+shift+b] in technology

18th Aug 2011
Aah what a nice summer! It was nice to be back in Övertorneå, doing nothing in particular. Just not having to make lunch and dinner every day is such a relief, and if you do slip up food with grandma or Veronica’s parents is only a phone call away. I watched TV, played...
BlackHat/DEFCON 2011 talk: Breaking out of KVM I’ve posted the final slides from my talk this year at DEFCON and Black Hat, on breaking out of the...
8th Aug 2011
24

BlackHat/DEFCON 2011 talk: Breaking out of KVM

from Posts on Made of Bugs [alt+shift+b] in technology

8th Aug 2011
I’ve posted the final slides from my talk this year at DEFCON and Black Hat, on breaking out of the KVM Kernel Virtual Machine on Linux. Virtunoid: Breaking out of KVM from Nelson Elhage [Edited 2011-08-11] The code is now available. It should be fairly well-commented, and...
Lion's Disk Utility not compatible with CoreStorage and Filevault My 1 TB hard drive of my 2011 27" iMac was partitioned with: A bootable partition with Mac OS X...
2nd Aug 2011
20

Lion's Disk Utility not compatible with CoreStorage and Filevault

from Louwrentius - Solar [alt+shift+b] in technology

2nd Aug 2011
My 1 TB hard drive of my 2011 27" iMac was partitioned with: A bootable partition with Mac OS X Lion Time machine partition (I use an external SSD as my main OS) Bootcamp partition with windows A data partition containg... data. The problem is that CoreStorage is too new. Disk...
15th Jul 2011
Switching away from Debian to Ubuntu LTS Over the last couple of years, Debian Linux has released new stable versions about every two years....
6th Jul 2011
21

Switching away from Debian to Ubuntu LTS

from Louwrentius - Solar [alt+shift+b] in technology

6th Jul 2011
Over the last couple of years, Debian Linux has released new stable versions about every two years. This pace is great for progress, but there is a serious problem. This problem is related to their support for older Debian stable versions. If you read the quote below from the...
Polygon Codec More...
26th Jun 2011
1

Polygon Codec

from Fabien Sanglard [alt+shift+b] in technology

26th Jun 2011
More...
Cannot access Windows guest within VMware Fusion when running vsphere client Currently, I am running VMware ESXi 4.1 on a test system. To manage ESXi, you need the VSphere...
17th Jun 2011
22

Cannot access Windows guest within VMware Fusion when running vsphere client

from Louwrentius - Solar [alt+shift+b] in technology

17th Jun 2011
Currently, I am running VMware ESXi 4.1 on a test system. To manage ESXi, you need the VSphere client, which is only available for the Windows platform. Therefore, I run VMware Fusion on my Mac to be able to access VSphere and manage my ESXi host. The trouble is that both ESXi...
Performance monitoring using dstat I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics about what is...
22nd May 2011
28

Performance monitoring using dstat

from Louwrentius - Solar [alt+shift+b] in technology

22nd May 2011
I'd like to introduce the utility 'dstat'. Dstat provides detailed statistics about what is currently happening on your Linux box. Dstat allows you to monitor the system load, disk troughput, disk io, network bandwith, and many more items. Dstat is so valuable because it...
I Made It! It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a...
2nd May 2011
19

I Made It!

from Jonas Hietala [alt+shift+b] in technology

2nd May 2011
It’s been over a year, but I haven’t lost (most) my touch yet! For the second time I’ve completed a Ludum Dare! Not an easy feat and yet there are tons of games that look absolutely wonderful. I’m not there yet but now I have at least gotten back into game making again, long...
28th Apr 2011
What's up It’s been a while again since the last time we met mr. Blog. I’ve been busy with school and other...
22nd Apr 2011
23

What's up

from Jonas Hietala [alt+shift+b] in technology

22nd Apr 2011
It’s been a while again since the last time we met mr. Blog. I’ve been busy with school and other stuff. I’ve thought about you but I just never really picked up emacs to write to you. I know it’s my fault but I beg of your mercy mr. Blog. You know that I had laid off school for...
Buying a new computer *** Desktop or Laptop *** When deciding on which computer to buy, the first decision you have to...
3rd Apr 2011
22

Buying a new computer

from Louwrentius - Solar [alt+shift+b] in technology

3rd Apr 2011
*** Desktop or Laptop *** When deciding on which computer to buy, the first decision you have to make is about whether to go for a desktop or a laptop. There was a time that many believed that the desktop would become a niche product. Most people want a laptop because they can...
A Four-Eyed Update Wow it’s been a while! Almost a month and a half since my last update. There I complained about my...
21st Mar 2011
19

A Four-Eyed Update

from Jonas Hietala [alt+shift+b] in technology

21st Mar 2011
Wow it’s been a while! Almost a month and a half since my last update. There I complained about my almost constant headaches which hampered me a lot actually. Luckily now I have joined the rank of cool. I took home three frames I think and tried them out and I settled some I...
Exploiting misuse of Python's "pickle" If you program in Python, you’re probably familiar with the pickle serialization library, which...
20th Mar 2011
22

Exploiting misuse of Python's "pickle"

from Posts on Made of Bugs [alt+shift+b] in technology

20th Mar 2011
If you program in Python, you’re probably familiar with the pickle serialization library, which provides for efficient binary serialization and loading of Python datatypes. Hopefully, you’re also familiar with the warning printed prominently near the start of pickle’s...
reptyr: Changing a process's controlling terminal reptyr (announced recently on this blog) takes a process that is currently running in one terminal,...
8th Feb 2011
25

reptyr: Changing a process's controlling terminal

from Posts on Made of Bugs [alt+shift+b] in technology

8th Feb 2011
reptyr (announced recently on this blog) takes a process that is currently running in one terminal, and transplants it to a new terminal. reptyr comes from a proud family of similar hacks, and works in the same basic way: We use ptrace(2) to attach to a target process and force...
Setting up a Jabber instant messaging server |_http-title: Site doesn't have a title (text/html;... I wanted to see how dificult it is to setup an instant messaging server based on open source...
5th Feb 2011
23
5th Feb 2011
I wanted to see how dificult it is to setup an instant messaging server based on open source software. Now I know that it is very easy, unless you are stubborn and do things your own way. In this example, I'm setting up a small IM server that is only for internal company use, but...
The Little Things in Life It’s the little things in life that makes it extra special. Sometimes it’s the luxury of coffee...
3rd Feb 2011
22

The Little Things in Life

from Jonas Hietala [alt+shift+b] in technology

3rd Feb 2011
It’s the little things in life that makes it extra special. Sometimes it’s the luxury of coffee together with the morning paper and other times it’s just a small simple smile from a random stranger, kid or dog. Today when I got this bad headache I got saved by a two hour nap and...
2nd Feb 2011
reptyr: Attach a running process to a new terminal Over the last week, I’ve written a nifty tool that I call reptyr. reptyr is a utility for taking an...
21st Jan 2011
32

reptyr: Attach a running process to a new terminal

from Posts on Made of Bugs [alt+shift+b] in technology

21st Jan 2011
Over the last week, I’ve written a nifty tool that I call reptyr. reptyr is a utility for taking an existing running program and attaching it to a new terminal. Started a long-running process over ssh, but have to leave and don’t want to interrupt it? Just start a screen, use...
My Dream Game: The Tycoon I’ve been playing Starcraft 2 a little this christmas. It wasn’t dead serious 1v1 which really is my...
5th Jan 2011
23

My Dream Game: The Tycoon

from Jonas Hietala [alt+shift+b] in technology

5th Jan 2011
I’ve been playing Starcraft 2 a little this christmas. It wasn’t dead serious 1v1 which really is my favorite but I’ve played 2v2 with some friends and I actually played the campaign a bit and it was pretty fun! Usually I never play the campaign on RTS games but this one I liked....
Migration from blogger to blogofile and disqus is complete As stated in my previous post, I migrated all posts from blogger.com to my own host running...
3rd Jan 2011
24

Migration from blogger to blogofile and disqus is complete

from Louwrentius - Solar [alt+shift+b] in technology

3rd Jan 2011
As stated in my previous post, I migrated all posts from blogger.com to my own host running blogofile. At the time of my previous post, I was not able to restore all comments made on my old blog. Thanks to some help from disqcus I fixed an error on my behalf and all old comments...
Christmas break So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and...
18th Dec 2010
22

Christmas break

from Jonas Hietala [alt+shift+b] in technology

18th Dec 2010
So school is on a break and I welcome it with all of my heart. The semester has been pretty fun and I really enjoy studying here. We had lisp the whole time which is a pretty sweet little language and if you haven’t, give it a shot. Then we had math and I do like math, although I...
All about the fillrate I bought "Blade infinity" yesterday. The game is a lot of fun and has the ability to satisfy both...
11th Dec 2010
1

All about the fillrate

from Fabien Sanglard [alt+shift+b] in technology

11th Dec 2010
I bought "Blade infinity" yesterday. The game is a lot of fun and has the ability to satisfy both people looking for instant fun and people wishing for a long game while collecting powerful items. At $5.99 it is a bargain, a must have not only for the gameplay but also for its...
CVE-2010-4258: Turning denial-of-service into privilege escalation Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different...
10th Dec 2010
27

CVE-2010-4258: Turning denial-of-service into privilege escalation

from Posts on Made of Bugs [alt+shift+b] in technology

10th Dec 2010
Dan Rosenberg recently released a privilege escalation bug for Linux, based on three different kernel vulnerabilities I reported recently. This post is about CVE-2010-4258, the most interesting of them, and, as Dan writes, the reason he wrote the exploit in the first place. In...
Belkin Gigabit USB 2.0 adapter works perfectly with Linux My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am using a mac mini as my...
8th Dec 2010
25

Belkin Gigabit USB 2.0 adapter works perfectly with Linux

from Louwrentius - Solar [alt+shift+b] in technology

8th Dec 2010
My ISP upgraded my internet connection speed to a whopping 120 Mbit. I am using a mac mini as my internet router. As you may be aware, the mini has only one network interface, so I added a second interface using a USB to ethernet adapter. This adapter was limited to 100 Mbit, so...
Why scons is cool I’ve recently started playing with scons a little for some small personal projects. It’s not...
7th Nov 2010
25

Why scons is cool

from Posts on Made of Bugs [alt+shift+b] in technology

7th Nov 2010
I’ve recently started playing with scons a little for some small personal projects. It’s not perfect, but I’ve rapidly come to the conclusion that it’s a probably far better choice than make in many cases. The main exceptions would be cases where you need to integrate into legacy...
The iPhone, iPad and iOS are powering a revolution Most people just don't understand computers. Are these people dumb? Some may be dumb, but the people...
6th Nov 2010
20

The iPhone, iPad and iOS are powering a revolution

from Louwrentius - Solar [alt+shift+b] in technology

6th Nov 2010
Most people just don't understand computers. Are these people dumb? Some may be dumb, but the people who make them are maybe even dumber. Because they can't seem to figure out how to create a computer that the majority of people understand. When the original macintosh arrived at...
Apple is killing off the optical drive just like the floppy disk With the release of the new MacBook Air we are one step closer to killing off the cd-rom and the...
23rd Oct 2010
23

Apple is killing off the optical drive just like the floppy disk

from Louwrentius - Solar [alt+shift+b] in technology

23rd Oct 2010
With the release of the new MacBook Air we are one step closer to killing off the cd-rom and the dvd. As with the previous MacBook Air, this device has no optical drive. And that is a good thing. People do not need an optical drive. You have the network and you have USB disks....
Going to University I mentioned in the last post that I’m going to the university, which might explain my lack of...
6th Oct 2010
25

Going to University

from Jonas Hietala [alt+shift+b] in technology

6th Oct 2010
I mentioned in the last post that I’m going to the university, which might explain my lack of activity here and for that I’m sorry. It’s not as hard as I had imagined, and I don’t have that much in school but there’s still a lot that’s going on. For example now how to make...
amd64 and va_arg A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t...
4th Oct 2010
25

amd64 and va_arg

from Posts on Made of Bugs [alt+shift+b] in technology

4th Oct 2010
A while back, I was poking around LLVM bugs, and discovered, to my surprise, that LLVM doesn’t support the va_arg intrinsic, used by functions to accept multiple arguments, at all on amd64. It turns out that clang and llvm-gcc, the compilers that backend to LLVM, have their own...
'Zabbix Security: client-server communication seems insecure' Zabbix is a populair tool for monitoring servers, services and network equipment. For monitoring...
27th Sep 2010
26

'Zabbix Security: client-server communication seems insecure'

from Louwrentius - Solar [alt+shift+b] in technology

27th Sep 2010
Zabbix is a populair tool for monitoring servers, services and network equipment. For monitoring hosts, Zabbix provides an agent that can be installed on the hosts that must be monitored. Based on the supplied documentation and some remarks on the internets, the 'security' of...
The great Hochstapler Hey there. A lot has happened lately since my last update and my last game here. I’m now a pretty...
19th Sep 2010
21

The great Hochstapler

from Jonas Hietala [alt+shift+b] in technology

19th Sep 2010
Hey there. A lot has happened lately since my last update and my last game here. I’m now a pretty happy student at Linköpings university and I’m reading something similar to Computer Science or Computer engineering, but I guess it’ll become whatever you make it to be. For...
1

inPulse tumblr - ah memories

from Eric Migicovsky's Blog RSS Feed [alt+shift+b] in technology

19th Sep 2010
How is duct tape like the force? I’m at Dragon*Con this weekend, my second time here now. I decided that if I was going to Dragon*Con...
5th Sep 2010
30

How is duct tape like the force?

from Posts on Made of Bugs [alt+shift+b] in technology

5th Sep 2010
I’m at Dragon*Con this weekend, my second time here now. I decided that if I was going to Dragon*Con again, I needed to do something in terms of costuming, and I wanted it to be something unique – I wasn’t going to come anywhere near as epic as some of the costumes people pull...
Suggestion time: What should I blog about? I haven’t been feeling very motivated to blog lately – I’ve missed the last two weeks of Iron...
8th Aug 2010
30

Suggestion time: What should I blog about?

from Posts on Made of Bugs [alt+shift+b] in technology

8th Aug 2010
I haven’t been feeling very motivated to blog lately – I’ve missed the last two weeks of Iron Blogger, and I’m not totally enthusiastic about any of the items on my “to blog” list. But, I do enjoy blogging when I actually get into posts, and I’d like to keep updating this blog....
Compiling Handbrake CLI on Debian Lenny In this post I will show you how to compile Handbrake for Debian Lenny. Please note that although...
3rd Aug 2010
17

Compiling Handbrake CLI on Debian Lenny

from Louwrentius - Solar [alt+shift+b] in technology

3rd Aug 2010
In this post I will show you how to compile Handbrake for Debian Lenny. Please note that although the Handbrake GUI version does compile on Lenny, it crashes with a segmentation fault like this: Gtk: gtk_widget_size_allocate(): attempt to allocate widget with width -5 and height...
Implementing a declarative mini-language in the C preprocessor Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time,...
4th Jul 2010
26

Implementing a declarative mini-language in the C preprocessor

from Posts on Made of Bugs [alt+shift+b] in technology

4th Jul 2010
Last time, I announced Check Plus, a declarative language for defining Check tests in C. This time, I want to talk about the tricks I used to implement a declarative minilanguage using the C preprocessor (and some GCC extensions). The Problem We want to write some toplevel...
Lustre and the risk of Serious Data Loss Personally I have a weakness for big-ass storage. Say 'petabyte' and I'm interested. So I was...
3rd Jul 2010
26

Lustre and the risk of Serious Data Loss

from Louwrentius - Solar [alt+shift+b] in technology

3rd Jul 2010
Personally I have a weakness for big-ass storage. Say 'petabyte' and I'm interested. So I was thinking about how you would setup a large, scalable storage infrastructure. How should such a thing work? Very simple: you should be able just to add hosts with some bad-ass huge...
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