Hi,
I'm running nginx as frontend to apache + mod_php with good results.
Apache has keepalive off and is running with few threads and with the essential modules.
i made a few tests with php-cgi -d managed with supervisord and I like it.
It seams faster and under load uses less memory than apache, I just don't know if APC is shared between child processes.
Is APC shared between php-cgi child processes?
Thanks
Nuno.