Re: [perfmon] Re: [perfmon2] perfmon2 merge news

From: Andi Kleen
Date: Wed Nov 14 2007 - 14:16:16 EST


> BTW, isn't rdpmc only enable for ring 0 on linux ? I remember a patch
> to disable it, dunno if it has been applied.

Obviously -- without a system call to set up performance counters it
would be fairly useless. But of course once such system calls are in
they should be able to trigger the bit for each process.

-Andi
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