Posix

Joshua Zhu’s Blog » C10K [how to write C10K server]

http://blog.zhuzhaoyuan.com/category/c10k/ notes about high-performance unix server programming, things like concurrency models, IO types, memory allocation strategies, etc.

Mod_perl and Signals

http://coding.derkeiler.com/Archive/Perl/comp.lang.perl.misc/2007-05/msg00808.html note about suing posix signals with mod_perl