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On Fri, Oct 28, 2005 at 05:16:54PM +0930, Iain Buchanan wrote: |
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> > > is there a top-like utility that can tell me what processes are doing |
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> > > the most disk reads/writes? |
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> > |
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> > run 'vmstat 1' |
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> |
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> that doesn't seem to tell me what processes are running, only what the |
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> system totals are. I wanted to see a top like output, eg |
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> process1 xMb/s |
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> process2 yMb/s |
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> etc |
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|
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I dont think you can get that out-of-the-box. I have not played with |
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accounting stuff (sar etc) so that might be able to do something like |
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this for you but AFAIK then vanilla kernel wont try to track this. The |
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reason is that short-lived processes might die before their disk request |
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gets to the block layer, making accounting impossible. A bit more |
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farfetched you might picture PID wrap and get disk access accounted to |
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the wrong process. I am not an expert on this so I am happily corrected. |
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|
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For disk IO I find iostat to be better than vmstat. Its part of the |
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sysstat package. |
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|
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Cheers, |
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Rasmus |
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-- |
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