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From: Ingo Molnar <mingo@elte.hu>
To: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Robert Richter <robert.richter@amd.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Stephane Eranian <eranian@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Lin Ming <ming.m.lin@intel.com>
Subject: Re: [PATCH 1/7] perf: introduce raw_type attribute to specify the type of a raw sample
Date: Thu, 20 May 2010 08:51:43 +0200	[thread overview]
Message-ID: <20100520065143.GA14480@elte.hu> (raw)
In-Reply-To: <4BF46000.20203@linux.vnet.ibm.com>


* Corey Ashford <cjashfor@linux.vnet.ibm.com> wrote:

> [...]
> 
> Have you looked at Lin Ming's patch series?  I think it 
> offers another way to support IBS and other 
> arch-specific and off-chip PMUs in a more general way, 
> though it's not quite fully-baked yet.

Robert, check out this thread on lkml:

  [RFC][PATCH v2 06/11] perf: core, export pmus via sysfs

Here is Peter's post that describes the high level design:

  http://groups.google.com/group/linux.kernel/msg/ab9aa075016c639e

And please help out Lin Ming with this work - we dont want 
to add new, special-purpose ABI extensions for enumeration 
purposes, it should be introduced using a new event_source 
node via the sysfs enumeration.

Whether IBS fits that category is an open question - 
ideally it should have similar high level usage as the 
PEBS/LBR bits on Intel CPUs. (at least as far as tooling 
goes)

Thanks,

	Ingo

  reply	other threads:[~2010-05-20  6:52 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-19 21:20 [PATCH 0/7] perf: implement AMD IBS (v2) Robert Richter
2010-05-19 21:20 ` [PATCH 1/7] perf: introduce raw_type attribute to specify the type of a raw sample Robert Richter
2010-05-19 22:02   ` Corey Ashford
2010-05-20  6:51     ` Ingo Molnar [this message]
2010-05-20 23:06       ` Robert Richter
2010-05-20 22:46     ` Robert Richter
2010-05-20  8:10   ` Stephane Eranian
2010-05-20  9:23     ` Peter Zijlstra
2010-05-20  9:42       ` Stephane Eranian
2010-05-20 10:37         ` Peter Zijlstra
2010-05-20 12:13           ` Stephane Eranian
2010-05-20 15:22             ` Robert Richter
2012-11-23 12:00               ` Robert Richter
2010-05-20 14:08           ` Robert Richter
2010-05-20 16:55             ` Ingo Molnar
2010-05-20 17:07               ` Robert Richter
2010-05-20 17:16                 ` Peter Zijlstra
2010-05-20 13:58       ` Robert Richter
2010-05-20 14:14         ` Stephane Eranian
2010-05-20 14:30           ` Stephane Eranian
2010-05-20 15:48           ` Robert Richter
2010-05-19 21:20 ` [PATCH 2/7] perf, x86: introduce bit range for special pmu events Robert Richter
2010-05-19 21:20 ` [PATCH 3/7] perf, x86: modify some code to allow the introduction of ibs events Robert Richter
2010-05-19 21:20 ` [PATCH 4/7] perf, x86: implement IBS feature detection Robert Richter
2010-05-19 21:20 ` [PATCH 5/7] perf, x86: setup NMI handler for IBS Robert Richter
2010-05-19 21:20 ` [PATCH 6/7] perf, x86: implement AMD IBS event configuration Robert Richter
2010-05-19 21:20 ` [PATCH 7/7] perf, x86: implement the ibs interrupt handler Robert Richter

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