Reply To: Sloooow WP-site

[__]

“Jigoshop” meaning this? And is it actually using all that memory?

To clarify, however, WP plugins are not “processes.” They are PHP scripts, that run inside the PHP (or Apache) process. By default, PHP is configured to use no more than 128MB. Unless you changed PHP’s memory limit, it is highly unlikely that WP is responsible for using all that memory: it would cbe killed long before that.

As I said above, I would suspect other processes. Databases or in-memory caches (like memcached) are possibilities, but really, it could be any program you have running on the server.

If it is just WP under peak loads, I would say you need to look into caching responses, or possibly using a CDN. Did you try disabling plugins and restarting them one-by-one, as @shaneisme suggested?