Dear list,I am having trouble pinpointing why our web servers are under load. This is an in house built PHP application. (mod_php5)
Current apache configuration:
MaxKeepAliveRequests 1000
KeepAliveTimeout 5
<IfModule mpm_prefork_module>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 200
MaxRequestsPerChild 10000
</IfModule>
RSS size of the apache processes are at most 15MB, the machine 2 dual
core cpu's, Intel(R) Xeon(TM) CPU 3.20GHz
During the busy times of the day the load goes to 4. Not really a problem because we have 2xdual core.
I can see apache using at least 50% of each cpu. So it is intensively using the system.
But why? We are not serving that many requests. Probably it will be in the PHP code, but how can I go and debug this?In the end I want to be able to say to the developers where the bottleneck lays in their php code.
What is the best way to do debug this?Also increasing MaxRequestsPerChild will lower the spawning of apache processes, MaxKeepAliveRequests too I think. But what are high but still reasonable figures?
Thank you in advance, -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Rudy Gevaert Rudy.Gevaert@xxxxxxxx tel:+32 9 264 4734 Directie ICT, afd. Infrastructuur ICT Department, Infrastructure office Groep Systemen Systems group Universiteit Gent Ghent University Krijgslaan 281, gebouw S9, 9000 Gent, Belgie www.UGent.be -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --------------------------------------------------------------------- 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-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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