From: Stephane Eranian <eranian@hpl.hp.com>
To: William Cohen <wcohen@nc.rr.com>
Cc: linux-kernel@vger.kernel.org, perfmon@napali.hpl.hp.com,
perfctr-devel@lists.sourceforge.net, linux-ia64@vger.kernel.org
Subject: Re: [Perfctr-devel] 2.6.16-rc5 perfmon2 new code base + libpfm with Montecito support
Date: Mon, 13 Mar 2006 18:55:00 +0000 [thread overview]
Message-ID: <20060313185500.GB32683@frankl.hpl.hp.com> (raw)
In-Reply-To: <4415BC45.1010601@nc.rr.com>
Will,
On Mon, Mar 13, 2006 at 01:39:01PM -0500, William Cohen wrote:
> Hi Stephane,
>
> I have been looking through the perfmon2 code to see how it is going to
> work with OProfile. It looks like the ia64 oprofile support has not been
> modified to work with the changes in perfmon2. Has the ia64 kernel been
> built with perfmon2 and oprofile support? I don't have easy access to an
> ia64, so I haven't been able to verify that the attached patch works.
> However, I expect that the changes in the patch will be required for
> OProfile to function with perfmon2.
>
Good timing. I just fixed this today. Now it compiles fine on
IA64. I also started looking into using the same technique on
i386. It is very easy. It looks like opcontrol or ophelp
would need to be updated. I think the trick is to make
sure that ophelp knows the PMU mapping used by perfmon2,
i.e., knows that PERFEVTSEL0 is PMC0 for instance.
--
-Stephane
next prev parent reply other threads:[~2006-03-13 18:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-08 15:53 2.6.16-rc5 perfmon2 new code base + libpfm with Montecito support Stephane Eranian
2006-03-08 20:40 ` William Cohen
2006-03-08 21:22 ` Stephane Eranian
2006-03-13 18:39 ` [Perfctr-devel] 2.6.16-rc5 perfmon2 new code base + libpfm with William Cohen
2006-03-13 18:55 ` Stephane Eranian [this message]
2006-03-13 19:15 ` William Cohen
2006-03-13 20:25 ` [Perfctr-devel] 2.6.16-rc5 perfmon2 new code base + libpfm with Montecito support Stephane Eranian
2006-03-13 20:58 ` [Perfctr-devel] 2.6.16-rc5 perfmon2 new code base + libpfm with William Cohen
2006-03-13 21:21 ` [Perfctr-devel] 2.6.16-rc5 perfmon2 new code base + libpfm with Montecito support Stephane Eranian
[not found] ` <20060313210127.GA13453@totally.trollied.org>
[not found] ` <20060313210354.GG32683@frankl.hpl.hp.com>
[not found] ` <20060313232057.GA16582@totally.trollied.org>
2006-03-13 23:58 ` Stephane Eranian
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