From: Avi Kivity <avi@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
joerg.roedel@amd.com, mingo@elte.hu, a.p.zijlstra@chello.nl
Subject: Re: [PATCH 6/9] perf, intel: Use GO/HO bits in perf-ctr
Date: Tue, 04 Oct 2011 11:21:37 +0200 [thread overview]
Message-ID: <4E8AD021.1030602@redhat.com> (raw)
In-Reply-To: <20111003154113.GB3225@redhat.com>
On 10/03/2011 05:41 PM, Gleb Natapov wrote:
> > Would be better to calculate these when the host msrs are
> > calculated, instead of here, every vmentry.
> >
> For arch PMU v2 and greater it is precalculated. For v1 (which is almost
> non existent, even my oldest cpu with VMX has v2 PMU) I am not sure it
> will help since we need to copy information to perf_guest_switch_msr
> array anyway here.
>
Okay.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-10-04 9:21 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-03 13:49 [PATCH 0/9] perf support for x86 guest/host-only bits Gleb Natapov
2011-10-03 13:49 ` [PATCH 1/9] perf, core: Introduce attrs to count in either host or guest mode Gleb Natapov
2011-10-03 13:49 ` [PATCH 2/9] perf, amd: Use GO/HO bits in perf-ctr Gleb Natapov
2011-10-03 13:49 ` [PATCH 3/9] perf, tools: Add support for guest/host-only profiling Gleb Natapov
2011-10-03 13:49 ` [PATCH 4/9] perf, tools: Fix copy&paste error in perf-kvm option description Gleb Natapov
2011-10-03 13:49 ` [PATCH 5/9] perf, tools: Do guest-only counting in perf-kvm by default Gleb Natapov
2011-10-03 13:49 ` [PATCH 6/9] perf, intel: Use GO/HO bits in perf-ctr Gleb Natapov
2011-10-03 15:06 ` Avi Kivity
2011-10-03 15:41 ` Gleb Natapov
2011-10-04 9:21 ` Avi Kivity [this message]
2011-10-03 13:49 ` [PATCH 7/9] KVM, VMX: add support for switching of PERF_GLOBAL_CTRL Gleb Natapov
2011-10-04 9:32 ` Avi Kivity
2011-10-04 9:57 ` Gleb Natapov
2011-10-03 13:49 ` [PATCH 8/9] KVM, VMX: Add support for guest/host-only profiling Gleb Natapov
2011-10-03 15:00 ` Avi Kivity
2011-10-03 15:36 ` Gleb Natapov
2011-10-04 9:28 ` Avi Kivity
2011-10-04 9:56 ` Gleb Natapov
2011-10-04 11:10 ` Avi Kivity
2011-10-04 11:17 ` Gleb Natapov
2011-10-04 11:24 ` Avi Kivity
2011-10-04 12:12 ` Gleb Natapov
2011-10-03 13:49 ` [PATCH 9/9] KVM, VMX: Check for automatic switch msr table overflow Gleb Natapov
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