From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>,
Robert Richter <robert.richter@amd.com>
Cc: "Ingo Molnar" <mingo@elte.hu>,
"Frédéric Weisbecker" <fweisbec@gmail.com>,
"Arnaldo Carvalho de Melo" <acme@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
"Stephane Eranian" <eranian@google.com>
Subject: Re: [RFC] perf, x86: Segregate PMU workaraunds into x86_pmu_quirk_ops structure
Date: Wed, 2 Jun 2010 01:25:56 +0400 [thread overview]
Message-ID: <20100601212556.GD14072@lenovo> (raw)
In-Reply-To: <20100531164553.GD5489@lenovo>
On Mon, May 31, 2010 at 08:45:53PM +0400, Cyrill Gorcunov wrote:
...
>
> So I guess plain test may be more-less fine here, hmm?
>
> -- Cyrill
> ---
> perf, x86: Make a second write to performance counter when needed
>
> On Netburst cpu we need a second write to performance counter to
> be sure it's updated properly.
>
> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
> ---
> arch/x86/kernel/cpu/perf_event.c | 10 ++++++++++
> arch/x86/kernel/cpu/perf_event_p4.c | 9 +++++++++
> 2 files changed, 19 insertions(+)
>
...
Ping? Any objections/ideas on this approach?
-- Cyrill
next prev parent reply other threads:[~2010-06-01 21:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-29 18:24 [RFC] perf, x86: Segregate PMU workaraunds into x86_pmu_quirk_ops structure Cyrill Gorcunov
2010-05-29 18:33 ` Peter Zijlstra
2010-05-31 16:45 ` Cyrill Gorcunov
2010-06-01 21:25 ` Cyrill Gorcunov [this message]
2010-05-31 13:00 ` Robert Richter
2010-05-31 13:43 ` Peter Zijlstra
2010-05-31 14:09 ` Cyrill Gorcunov
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