From: Paul Mackerras <paulus@samba.org>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org
Subject: Counting FP multiplies on Core 2
Date: Thu, 7 Jan 2010 15:52:48 +1100 [thread overview]
Message-ID: <20100107045248.GB30718@drongo> (raw)
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?
Paul.
next reply other threads:[~2010-01-07 4:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-07 4:52 Paul Mackerras [this message]
2010-01-07 8:30 ` Counting FP multiplies on Core 2 Peter Zijlstra
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