linux-kernel - Re: [PATCH v2 -tip] perf: x86, add SandyBridge support

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Message-ID: <20110228090833.GA7439@elte.hu>
Date:	Mon, 28 Feb 2011 10:08:33 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Lin Ming <ming.m.lin@...el.com>
Cc:	Stephane Eranian <eranian@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andi Kleen <andi@...stfloor.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 -tip] perf: x86, add SandyBridge support


* Lin Ming <ming.m.lin@...el.com> wrote:

> > In other words, bit 0-3 of the umask cannot be zero.
> 
> I got the umask from "Table 30-20. PEBS Performance Events for Intel 
> microarchitecture code name Sandy Bridge".
> 
> But from "Table A-2. Non-Architectural Performance Events In the Processor Core 
> for Intel Core Processor 2xxx Series", the combinations are needed as you show 
> above.
> 
> Which one is correct?

Since you have access to the hardware, could you please test and see it in practice 
which one is correct?

Thanks,

	Ingo
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