How much CPU use is too much?

Posted by Jonathan Sampson on Server Fault See other posts from Server Fault or by Jonathan Sampson
Published on 2010-12-23T15:34:25Z Indexed on 2010/12/23 15:55 UTC
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I've got a server that receives around a million unique visitors a month and I've recently began using Plesk to help monitor some of the vitals on the box itself. RAM I can make sense of, but I'm not really sure if my CPU usage is too high, low, or about average for this number of visitors. The server exists solely to serve up a somewhat hefty WordPress blog.

This is one week. What types of things should I look out for? Some other information about this server follows:

VCPU(s): 4, RAM: 6GB, HDD: 30GB, OS: Ubuntu Server 10.04 x86_64

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