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Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 72 posts.
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Build Doom3 on MacOSX with XCode4
The source code of Doom3 has been released three days ago :) ! I have started to read it and I will probably write a code review if enough people are interested. According to the README.txt the source code is building well with Visual Studio 2010 but it is not building at all on Mac OS X with XCode 4.0 ( it is…
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An lsof Primer
Key Options Getting Information About the Network User Information Commands and Processes Files and Directories Advanced lsof is the sysadmin/security über-tool
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Goliath: Non-blocking, Ruby 1.9 Web Server
There are easily half a dozen of factors you need to consider when picking an app server: the choice of the VM, implementation model, performance and memory usage, driver and library availability, community support, and so forth. In other words, it is a complex set of requirements, and no one solution is likely to…
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Finding memory leaks
Over lunch last week Mikhail Naganov (creator of the DevTools Heap Profiler ) and I were discussing how invaluable it has been to have the ...
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What can you do in 2k LOC of C?
It started with stb_image.c because it’s just crazy useful and avoids so much hassle in small demo programs. But that was just the gateway…
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Understanding the code inside Tornado, the asynchronous web server
If you see this page, the nginx web server is successfully installed and working. Further configuration is required.
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Insufficiently known Posix shell features
It's that time of year again apparently. Rather than fill in the template for you this time, I'll just give you the general outline of what...
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/dev/audio
Software Engineer in Auckland, New Zealand.
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How to DOS a developer
So you think your favourite FOSS project is moving too fast? Easy, just DOS the developers. Here's a few tips on how to achieve this: On IR...
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Assault by GC
TL;DR; We had performance spikes, which we eased with some insane use of struct s. History For a while now, we had been seeing a probl...
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The most stupid C bug ever
I have been programming for a number of years already. I have seen others introduce bugs, and I have also introduced (and solved!) many bugs while coding. Off-by-one, buffer-overflow, treating pointers as pointees, different behaviors or the same function (this is specially true for cross-platform applications), race…
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Low-level x86 code compression for 64k intros
This is about the “secret ingredient” in my EXE packer kkrunchy, which was used in our (Farbrausch) 64k intros starting from “fr-030: Candytron”, and also in a lot of other …
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jwz: Apple recently broke Ctrl-Y
Ever since MacOS 10.0 was released, text fields have supported Emacs bindings for the single-character Control commands, showing that there were people inside Apple (and, presumably, NeXT) who were right-thinking and sensible. But some time late in the 10.6 release cycle, and continuing into 10.7.1, the binding for…
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Smaller than Bloom filters
I've been looking at what would be needed in order to have a global view of CRLs in browsers. At the moment revocation has three problems: privacy (by asking the CA about the status of a certificate you're revealing to them what you're looking at), performance (OCSP checks take hundreds of milliseconds which adds up…
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Why linux doesn't have a "wheel" group
The wheel group is, perhaps, not widely used today, or is seen as “archaic” and irrelevant. Nothing could be further from the truth. The wheel group is a group which limits the number o…