I've been watching top and htop for awhile on a very active server and I am wondering why linux does not automatically use cpu affinity better?
CPU #1 (actually core #1 of 4) is used much more heavily than the others.
Is there a setting similar to what vm.swappiness does for vm swap that forces a preferred affinity pattern?
Should I be using forced affinity settings within mysql/apache/nginx/exim to get better results?
This is on CentOS 2.6.32-279 x86_64 SMP
Thanks for any suggestions.