[solve] cpu usage high

[jaequery]

hi guys

i'm hosting a site that gets 1M+ visits a day in litespeed right now.
the site is a combination of php and cgi and i noticed that my cpu's hover around 20-30 percent w/ load avg around 8-15. server has 32 cpu cores of intel romley btw. litespeed is configured with lsphp + suexec.

the server has a ton of ram (64gb), but it is only utilizing 2-3 percent of it and i was wondering if i haven't configured litespeed correctly for this. disk is SSD w/ disk i/o less than 2 percent;. mysql is hosted on separate server.

is there some setting that i'm not aware of?

i've upped all the sysctl settings, like this:

net.ipv4.netfilter.ip_conntrack_max=524288
net.ipv4.tcp_tw_reuse = 1
net.ipv4.ip_local_port_range = 1024 65023
net.ipv4.tcp_max_syn_backlog = 10240
net.ipv4.tcp_max_tw_buckets = 400000
net.ipv4.tcp_max_orphans = 60000
net.ipv4.tcp_synack_retries = 3
net.core.somaxconn = 10000

not sure if it's too low or too high.

can i please get some assistance in optimizing our current situation?