Submitted by chiareu on Tue, 05/28/2013 - 07:50
Hi recently I encountered an unexpected high CPU load (12.6) with full memory and IO usage but no network traffic. On the Running Processes page, was php5-cgi processes started simultaneous for every account on server. I was trying to figure what was the cause, what was running and use all the resources but I can't figure. Please cane you take a look at the print screens and give some idea?
here is the links to the print screens, can't upload them. An HTTP error 0 occured :)
Submitted by andreychek on Tue, 05/28/2013 - 09:23 Comment #1
Howdy -- it can be pretty difficult to determine the cause of high CPU load after it's occurred... what you have in your screenshots isn't too unusual, outside of the total CPU load it's using.
Next time that occurs, what you may want to do is get a full process list (with "ps auxw"), as well as review what the processes are doing in MySQL by logging into MySQL and running "show full processlist". And it wouldn't hurt to review how many messages are in the mail queue, which you can do with "mailq | tail -1".
However, it appears that you're using Virtualmin GPL there. The Support area here is for folks using Virtualmin Pro.
If you run into that again, what we'd suggest is taking the above info, and posting that info the Forums.
We monitor those, along with lots of wonderful folks in the forums. Thanks!