I've been working on on getting my webserver in check and I'm running into some issues. First of all, using top I've noticed that Apache is using a lot of memory, no surprise really, but 130-150M per process seems high even for apache. I'm running 2.2 worker MPM using mod_fcgid for php. I was under the impression that going this route would bring my memory consumption down but it didn't seem to change much when I switched from Prefork and mod_php. What am I missing here? I've read that well tuned apache should be using closer to 15-25MB per process. Am I way off?
Here's a list of the modules compiled with my ver of apache:
Compiled in modules:
core.c mod_authn_file.c mod_authn_default.c mod_authz_host.c mod_authz_groupfile.c mod_authz_user.c mod_authz_default.c mod_auth_basic.c mod_cache.c mod_mem_cache.c mod_include.c mod_filter.c mod_deflate.c mod_log_config.c mod_logio.c mod_env.c mod_expires.c mod_headers.c mod_unique_id.c mod_setenvif.c mod_version.c mod_proxy.c mod_proxy_connect.c mod_proxy_ftp.c mod_proxy_http.c mod_proxy_scgi.c mod_proxy_ajp.c mod_proxy_balancer.c mod_ssl.c worker.c http_core.c mod_mime.c mod_status.c mod_autoindex.c mod_asis.c mod_info.c mod_suexec.c mod_cgid.c mod_negotiation.c mod_dir.c mod_actions.c mod_userdir.c mod_alias.c mod_rewrite.c mod_so.c
Are any of those particularly large and omittable. I built off of a generic version using the easy apache setup on the server. My guess is there's fat to trim there.
The other question I have: Is there shared memory between processes? For each process to use over 130MB seems fishy. Is there a way to limit the amount of memory used? Cache settings?