I've been periodically switching up my linux kernel config in an attempt to figure out what our friendly srcds software enjoys, and recently ran into something fun with this config: 2.6.25.4-rt1 kernel (realtime patchset), full RT-mode with all the fun RCU options on, non-tickless, 1000hz and all fun RTC options on What happens is srcds_i486 uses 0-10% CPU when loaded up with 32 players. It was using 80-95% previously. The catch is 'sirq-timer/0' and 'sirq-timer/1' (for each cpu) bloats up to ~70% cpu usage. Net CPU usage is down a good 10-20% overall, as compared to 2.6.25.3 non-rt with the same settings.
Has anyone else really messed with the RT/HPET/Etc. settings in depth on the more recent .23+ kernels? And has anyone here tried re-implementing gettimeofday() in a plugin/preload to remove the heavy overhead calling a (non-virtual) syscall a thousand times/second can have on srcds performance? Not that I don't trust valve's programming decisions... Kernel config in question: http://nemu.nephyrin.net/kconfig_20080501801.txt - Neph _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
