From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Stephane Eranian <eranian@google.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Don Zickus <dzickus@redhat.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC perf,x86] P4 PMU early draft
Date: Wed, 10 Feb 2010 00:35:42 +0300 [thread overview]
Message-ID: <20100209213542.GC5068@lenovo> (raw)
In-Reply-To: <bd4cb8901002091313h3bc739fbi872567fdb219d752@mail.gmail.com>
On Tue, Feb 09, 2010 at 10:13:59PM +0100, Stephane Eranian wrote:
> Cyrill,
>
> On Mon, Feb 8, 2010 at 7:45 PM, Cyrill Gorcunov <gorcunov@gmail.com> wrote:
...
> >
> > Stephane, I know you've been (and still is, right?) working on P4 driver
> > for libpmu (not sure if I remember correctly this name). Perhaps we should
> > take some ideas from there?
> >
> The library is called libpfm (perfmon) and libpfm4 (perf_events). It has
> support for Netburst (pentium4). It does the assignment of events to
> counters in user mode. I did not write the P4 support and it was a very long
> time ago. I don't recall all the details, except that this was really difficult.
> You may want to take a look at pfmlib_pentium4.c.
Yeah, I've a look taken on it. Interesting. Thanks! Will take more precise look
as only get spare time slot :)
>
> I am still actively developing libpfm4 for perf_events. The P4 support is
> not available because I don't know how perf_events is going to support
> it. I'll update the library once that is settled.
>
-- Cyrill
next prev parent reply other threads:[~2010-02-09 21:35 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-08 18:45 [RFC perf,x86] P4 PMU early draft Cyrill Gorcunov
2010-02-08 21:56 ` Cyrill Gorcunov
2010-02-09 4:17 ` Ingo Molnar
2010-02-09 6:54 ` Cyrill Gorcunov
2010-02-09 22:39 ` Cyrill Gorcunov
2010-02-10 10:12 ` Peter Zijlstra
2010-02-10 10:38 ` Cyrill Gorcunov
2010-02-10 10:52 ` Peter Zijlstra
2010-02-10 11:23 ` Cyrill Gorcunov
2010-02-11 12:21 ` Peter Zijlstra
2010-02-11 15:22 ` Cyrill Gorcunov
2010-02-26 10:25 ` [tip:perf/core] perf_events: Simplify code by removing cpu argument to hw_perf_group_sched_in() tip-bot for Peter Zijlstra
2010-02-09 4:23 ` [RFC perf,x86] P4 PMU early draft Paul Mackerras
2010-02-09 6:57 ` Cyrill Gorcunov
2010-02-09 8:54 ` Peter Zijlstra
2010-02-09 21:13 ` Stephane Eranian
2010-02-09 21:35 ` Cyrill Gorcunov [this message]
2010-02-15 20:11 ` Robert Richter
2010-02-15 20:32 ` Cyrill Gorcunov
2010-02-17 22:14 ` Cyrill Gorcunov
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