On Tue, 2011-10-18 at 11:32 +0200, Tom Evans wrote: > On Mon, Oct 17, 2011 at 1:01 PM, Josu Lazkano > <josu.lazk...@barcelonamedia.org> wrote: > > Hello list! I have a Ubuntu server with Apache2 to serve a Moodle web. > > > > I notice that where there are few users (4 or 5) requesting pages, the > > Apache2 process goes to 100% on all CPUs (4 cores). > > > > I try with memcached but it still getting 100% CPU usage. > > > > What I must check? I will appreciate any help. > > > > Thanks and best regards. > > > > > > Moodle is a PHP framework. > PHP scripts run embedded inside Apache*. > High CPU usage in Apache whilst serving PHP pages is usually due to > the PHP page. > > The best people to help with why the framework works so poorly are the > people who wrote the framework. > > Cheers > > Tom > > * Usually. You can also run out of process, using FastCGI, which will > quickly make clear how much work Apache is doing, and how much work > PHP is doing. If you are using mod_php, its running embedded. > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > " from the digest: users-digest-unsubscr...@httpd.apache.org > For additional commands, e-mail: users-h...@httpd.apache.org >
Thanks Tom, I check the Moodle forum but I don't find any interesting post about Apache performance. I configure some parameters on my Apache but it still not work (I can block the server just hitting the F5 key 10 times). This is my Apache2: $ apache2ctl -l Compiled in modules: core.c mod_log_config.c mod_logio.c prefork.c http_core.c mod_so.c And this is my configuration: http://dl.dropbox.com/u/1541853/apache2.conf I just change this values: <IfModule mpm_prefork_module> StartServers 8 MinSpareServers 5 MaxSpareServers 20 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> Is possible to know witch PHP files is getting 100% of the CPU? Some debugging tool for that? I don't know what else to try. The server is a virtual one with 8GB of memory and 4 CPUs, I think it is enough for a 50 user Moodle. Thanks for your help. Kind regards. -- Josu Lazkano Barcelona Media – Centre d’Innovació --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org " from the digest: users-digest-unsubscr...@httpd.apache.org For additional commands, e-mail: users-h...@httpd.apache.org
