Performance
I am running RedHat Linux 6.1 64bit in a virtual environment. 2 CPUs 4GB RAM.
I have been seeing 12 to 14 hour spikes in CPU utilization, but have not been able to pinpoint WHAT process(s) is using the CPU. Can sar give me this information> If so, can someone give me an example command, and how to interpret the output? If sar cannot give me this information, is there another tool that can? Thanks in Advance |
You could try using the command top to see which processes are eating up the CPU. I do not know what the command sar is but top is what I use.
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Top would only be good if I happen to be there.
I need to find out what process was causing the spike at the time of the incident. Any ideas would be good |
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Does the load spike occur in the middle of the night, say, when a cron job might be running?
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I will give the top script idea a go, and hopefully the incident will repeat itself. Thanks all. |
OK, sorry, my last reply was a bit curt, but I was in a bit of a hurry; here are a few more fragments;
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