Disabling a CPU with the CHUD framework
Xcode Tools has an optional component, CHUD Tools (Computer Hardware Understanding Development Tools), that consists of some useful performance tools and low-level hardware facilities. My Dual 2ghz G5...
View ArticleAdvanced Debugging Techniques: ktrace
I had spent the past few days on and off trying to help a py2app user with a very hairy problem: when wxPython 2.4.2.4 was bundled, the main menu didn't work. Running the application as an alias...
View ArticleAltivec Kicks Ass
I started screwing around with enhancing Ryan Gordon's AltiVec patch for SDL last weekend. I ended up spending more time on it than I should've, but I think I've optimized all of the 32bit-32bit...
View ArticleSWIG hate
SWIG should definitely win the prize for worst implementation of a good idea, ever. Automatic wrapping of code sounds great, right? Well, it could be, but it's most certainly not. To the point where I...
View ArticleMac OS X 10.4 (Tiger)'s copyfile()
All of the snazzy ACL-and-metadata-copying features in Darwin 8 / Tiger live in one function, copyfile(). Unfortunately, Apple forgot to include the header for it in the version of Xcode that ships...
View ArticlePython on Mac OS X (Intel)...
Python on Mac OS X for Intel is not going to be a seamless transition. Unlike Mathematica, there is going to be a lot more than 2 hours of effort involved. Why? Python uses autoconf. Autoconf is not...
View ArticleUniversal Binaries with gcc and Xcode
Versions of Mac OS X prior to 10.4 did support universal binaries, but the shipping gcc did not, so it is possible to compile applications that will work on both 10.3 ppc (Panther) and 10.4 i386...
View ArticleErlang Binary Performance
I was benchmarking egeoip today, which is my from-scratch Erlang geolocation library. It uses the MaxMind GeoLite City database, which has implementations in a bunch of other languages so it's great...
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