linux-kernel - Re: Basic perf PMU support for Haswell v1

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Date:	Thu, 31 Jan 2013 18:19:01 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: Basic perf PMU support for Haswell v1

Andi,

Are you going to post a new version based on my feedback or do you stay
with what you posted on 1/25?


On Fri, Jan 25, 2013 at 11:00 PM, Andi Kleen <andi@...stfloor.org> wrote:
> This is based on v7 of the full Haswell PMU support, but
> ported to the latest perf/core and stripped down to the "basic support"
> as requested.
>
> I decided to include LBRs in the basic support. These are 4 patches
> self contained at the end, so could be also handled as a separate
> unit if that is preferable.
>
> Contains support for:
> - Basic Haswell PMU and PEBS support
> - Late unmasking of the PMI
> - Support for wide counters
> - New TSX counter flags, exported as sysfs attributes
> - Support for checkpointed counters.
> - New LBR flags, exported as new flags with tools support
>
> Available from
> git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc hsw/pmu4-basics
>
> For more details on the Haswell PMU please see the SDM. For more details on TSX
> please see http://halobates.de/adding-lock-elision-to-linux.pdf
>
> -Andi
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