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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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I don't think this has what you are looking for but it's a lot better than the standard task manager. Process Explorer found at – Nifle Feb 1 '10 at 16:33

You want Process Explorer:

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Processor Explorer does not offer this feature. See Determine which CPU a process is running on – Ƭᴇcʜιᴇ007 Jan 20 '15 at 18:01

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 '10 at 14:55
@josh, in that case it is not clear what you are asking for. – Mick Feb 5 '10 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 '13 at 16:14

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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