help diagnosing high apache cpu/memory

[mettle]

Hi can someone help me with diagnosing high cpu and memory usage by apache? It seems to be getting higher and higher. I can restart apache and its fine for a while but then spikes again. Thanks.

 

[InderS]

Hello,

You will have to monitor your server with " top -d 2c" command and check which files is consuming the memory and CPU on your server

Thanks

 

[mettle]

Ok, what next? I see mostly httpd threads and apache as the user. How do I track down which sites/files are using the most resources? Would switching sites to use fastcgi help?

 

[IgorG]

http://kb.parallels.com/264

 

[mettle]

I switched my highest traffic site to fastcgi and this is the result. Yesterday at 11am I restarted apache, that was the sudden change. Then last night at around 2030 I restarted it again after changing the site to fastcgi. Seems to have made a difference, how do I know if this amount of memory usage is good or bad?

 

[galaxy]

Where did you get those graphs? I've found my apache processes at 1.4 gig, and when apache is running memory usage goes from 1.9 gig to 8 gig (100% of memory).
I've severely reduced StartServers, MinSpareServers and MaxSpareServers but just 10 processes still consumes all my memory.

updated: found the graphs. Needed to install PHM (plesk health monitor).

But now see in health monitor that Real Memory Usage is pegged at 100% and Apache constantly growing using close to all the memory.