From: Ingo Molnar <mingo@elte.hu>
To: Robert Richter <robert.richter@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>,
Paul Mackerras <paulus@samba.org>,
David Miller <davem@davemloft.net>,
Will Deacon <will.deacon@arm.com>,
Paul Mundt <lethal@linux-sh.org>
Subject: Re: [PATCH 1/7] perf: introduce raw_type attribute to specify the type of a raw sample
Date: Thu, 20 May 2010 18:55:01 +0200 [thread overview]
Message-ID: <20100520165501.GA8281@elte.hu> (raw)
In-Reply-To: <20100520140819.GQ21799@erda.amd.com>
* Robert Richter <robert.richter@amd.com> wrote:
> On 20.05.10 06:37:39, Peter Zijlstra wrote:
>
> > So yeah, you might as well expose it as a whole separate PMU using Lin's
> > stuff.
>
> This seems to be the most promising alternative to raw_type. But it's also
> much more bloated requiring sysfs and additional file descriptors.
Not really, fds are really cheap on Linux, and in any case it's only needed
when the event is created - can be closed afterwards.
Ingo
next prev parent reply other threads:[~2010-05-20 16:55 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
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 [this message]
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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