From: Chen Cao <kcao@redhat.com>
To: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: lmr@redhat.com, autotest@test.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH] KVM test: Add perfmon into the guest tests
Date: Thu, 27 May 2010 17:53:29 +0800 [thread overview]
Message-ID: <20100527095328.GA4427@t4.rh> (raw)
In-Reply-To: <4BFE2891.3070804@redhat.com>
On Thu, May 27, 2010 at 10:08:49AM +0200, Jes Sorensen wrote:
> On 05/25/10 05:05, Chen Cao wrote:
> > perfmon2 API provides access to the hardware performance counters of
> > modern processors.
> >
> > Dependency,
> > To compile the source code of the test, the following packages should
> > be installed,
> > glibc-static-2.11.1-6.x86_64
> > glibc-headers-2.11.1-6.x86_64
> > glibc-common-2.11.1-6.x86_64
> > glibc-devel-2.11.1-6.x86_64
> > glibc-2.11.1-6.x86_64
> >
> > Note,
> > 1. libpfm uses the Performance Monitor Unit (PMU) on the processors,
> > but this unit is not provided by kvm currently, i.e. the test should
> > fail in kvm guests.
> > 2. According to the README file of perfmon-tests-0.3, 2.6.24 or higer
> > Linux kernel (with perfmon v2.8 or higher) is needed to run the tests.
>
> I thought perfmon2 was deprecated in favor of perf_event.c ? The only
> reference left for perfmon2 in the kernel is in the ia64 tree, and
> KVM/ia64 seems to be pretty dead these days.
>
Jes,
Thank you for reminding.
I have not noticed your mail this afternoon and resent the patches for
the perfmon test, it seems that i may have made a mistake.
by the way, could you tell me how to verify that "perfmon2 was
deprecated in favor of perf_event.c", except looking into the kernel
code?
Regards,
Cao, Chen
2010/05/27
next prev parent reply other threads:[~2010-05-27 9:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-25 3:05 [PATCH] KVM test: Add perfmon into the guest tests Chen Cao
2010-05-27 8:08 ` Jes Sorensen
2010-05-27 9:53 ` Chen Cao [this message]
2010-05-27 10:04 ` Jes Sorensen
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