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Is there a program that logs this, or at least lets me see in real time which process is running on which core? I don't think the task manager quite does either of these.

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3 Answers 3

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You want Process Explorer: http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx

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I think you are assuming that a process gets run on a fixed core, but this is not true. Processes will jump from core to core way to fast to monitor visually.

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  • No, I am not assuming that.
    – josh
    Feb 5, 2010 at 14:55
  • @josh, in that case it is not clear what you are asking for.
    – Mick
    Feb 5, 2010 at 17:08
  • It's clear what he asked for. He asked for a log of process affinity and runtime. Nothing in josh's question presumes affinity locking.
    – OCDtech
    Feb 22, 2013 at 16:14
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For a command-line solution you may be interested in the pslist utility, which is part of the pstools suite. I'm afraid it doesn't show processor affinity, but it will enable you to log which processes are running and for how long.

The official site for pstools can be found here.

You may also like to Google for the 'PsTools Primer' article by Wes Miller.

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