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Open Source and information security mailing list archives
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Date: Thu, 07 Jan 2010 09:30:33 +0100 From: Peter Zijlstra <peterz@...radead.org> To: Paul Mackerras <paulus@...ba.org> Cc: Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org Subject: Re: Counting FP multiplies on Core 2 On Thu, 2010-01-07 at 15:52 +1100, Paul Mackerras wrote: > The Intel manual tells me that event num 12H, umask 00H on Core 2 > counts multiply operations executed, but says "Use IA32_PMC1 only". > Is there a way in the raw event code to specify a particular PMC, or > does the code just know that that event can only be counted on PMC1? Right, this is what Stephane is trying to implement, but he's not very fast.. maybe I should help him out. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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