We have a dedicated server quad core processor 8gb ram running 4 magento stores. 2 stores are causing VERY HIGH CPU load and the problem seems to be PHP.
We need someone very experienced with troubleshooting MAGENTO eCommerce stores and dedicated server troubleshooting.
We have APC caching installed on 1 store but would consider other caching methods.
Also considering putting the cache/temp magento files in a tmpfs RamDrive for var/cache and var/sessions
PHP, apache, MySql optimization assistance too
Basically what happens is server load gets too high because PHP locks up and then we're dead in the water.
Hoping to find someone extremely familiar with optimizing magento on a dedicated server so we can overcome these issues quickly.
Thanks for your help