nginx process high load cpu

[kaspars]

I see that you're using php-cgi with APC. Do you have apc.mmap_file_mask
specified in your APC config? Secondly, is there a reason you're not
using php-fpm instead of php-cgi?

http://stackoverflow.com/questions/598444/how-to-share-apc-cache-between-several-php-processes-when-running-under-fastcgi

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,175259,175466#msg-175466