From: Robert Richter <robert.richter@amd.com>
To: Stephane Eranian <eranian@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
<linux-kernel@vger.kernel.org>, <mingo@elte.hu>,
<ming.m.lin@intel.com>, <ak@linux.intel.com>
Subject: Re: [PATCH] perf_events: fix and improve x86 event scheduling
Date: Thu, 10 Nov 2011 17:59:21 +0100 [thread overview]
Message-ID: <20111110165921.GC15738@erda.amd.com> (raw)
In-Reply-To: <CABPqkBS_4TBYUvw_bPbtgpAfp8+vnSRZBYQoSAOKjOYV4GHmXA@mail.gmail.com>
On 10.11.11 16:09:32, Stephane Eranian wrote:
> On Thu, Nov 10, 2011 at 3:37 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> > Just throwing this out there (hasn't event been compiled etc..).
> >
> > The idea is to try the fixed counters first so that we don't
> > 'accidentally' fill a GP counter with something that could have lived on
> > the fixed purpose one and then end up under utilizing the PMU that way.
> >
> > It ought to solve the most common PMU programming fail on Intel
> > thingies.
Peter, what exactly are that Intel constraints you try to solve? Could
you give a short example.
Thanks,
-Robert
--
Advanced Micro Devices, Inc.
Operating System Research Center
next prev parent reply other threads:[~2011-11-10 16:59 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-07 11:01 [PATCH] perf_events: fix and improve x86 event scheduling Stephane Eranian
2011-11-07 11:55 ` Peter Zijlstra
2011-11-07 12:10 ` Peter Zijlstra
2011-11-07 13:52 ` Stephane Eranian
2011-11-07 14:56 ` Peter Zijlstra
2011-11-10 14:37 ` Peter Zijlstra
2011-11-10 15:09 ` Stephane Eranian
2011-11-10 16:41 ` Gleb Natapov
2011-11-10 16:59 ` Stephane Eranian
2011-11-10 17:13 ` Gleb Natapov
2011-11-10 16:59 ` Robert Richter [this message]
2011-11-10 18:31 ` Peter Zijlstra
2011-11-10 18:03 ` Robert Richter
2011-11-10 18:41 ` Peter Zijlstra
2011-11-10 18:52 ` Peter Zijlstra
2011-11-11 14:29 ` Robert Richter
2011-11-14 17:51 ` [PATCH v3 0/2] perf, x86: handle overlapping counters Robert Richter
2011-11-14 17:51 ` [PATCH v3 1/2] perf, x86: Implement event scheduler helper functions Robert Richter
2011-11-16 16:02 ` Peter Zijlstra
2011-11-16 19:23 ` Robert Richter
2011-11-14 17:51 ` [PATCH v3 2/2] perf, x86: Fix event scheduler for constraints with overlapping counters Robert Richter
2011-11-14 12:55 ` [PATCH] perf_events: fix and improve x86 event scheduling Stephane Eranian
2011-11-14 14:12 ` Peter Zijlstra
2011-11-14 14:26 ` Stephane Eranian
2011-11-14 16:00 ` Peter Zijlstra
2011-11-14 17:39 ` Stephane Eranian
2011-11-14 21:43 ` Peter Zijlstra
2011-11-16 10:28 ` Stephane Eranian
2011-11-14 22:16 ` Peter Zijlstra
2011-11-16 10:06 ` Stephane Eranian
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