linux-kernel - Re: [PATCH 01/33] perf, x86: Add PEBSv2 record support

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Message-ID: <1351506201.24721.7.camel@twins>
Date:	Mon, 29 Oct 2012 11:23:21 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	acme@...hat.com, jolsa@...hat.com, eranian@...gle.com,
	mingo@...nel.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 01/33] perf, x86: Add PEBSv2 record support

On Mon, 2012-10-29 at 19:08 +0900, Namhyung Kim wrote:
> That means it can support precise == 3?

It should, the difference between 2 and 3 is allowing for !EXACT_IP
samples. Not needing the LBR based fixup we should never have that, so
HSW might indeed allow for 3.
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