| high system cputime % [message #22810] |
Sun, 04 November 2007 13:56  |
rickb
Messages: 368
Registered: October 2006
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Senior Member |
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Hi, this isn't an openvz specific question but I hope my friends here can help me. I am running 2.6.18 el5 openvz on an 8x 2.33 ghz opteron with 32GB mem (20GB unused by apps for page cache), and 6x sata @ software raid10 (linux md).
The system cputime % in the system seems quite high, averaging 25-35% based on dstat/vmstat/sar output.
Is there anyway to know where this cputime is going or know if there is some abuse/waste? I suspected the software raid10, because the system does heavy io constantly, but my mdX_raid10 kernel thread has only 224 minutes of cputime in 3 weeks of uptime, kjournald has 231 minutes of cputime, not a lot from my experience.
I feel a good chunk of the cpu resources are being wasted or used for purposes which are not accounted for. Is there any way to get more info?
Thanks!
Rick
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