From: Joerg Roedel <joro@8bytes.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Roedel, Joerg" <Joerg.Roedel@amd.com>,
"yanmin_zhang@linux.intel.com" <yanmin_zhang@linux.intel.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Paul Mackerras <paulus@samba.org>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [RFC][PATCH 0/3] perf support for amd guest/host-only bits
Date: Wed, 11 May 2011 10:57:44 +0200 [thread overview]
Message-ID: <20110511085744.GA8707@8bytes.org> (raw)
In-Reply-To: <20110510204149.GE21903@elte.hu>
On Tue, May 10, 2011 at 10:41:49PM +0200, Ingo Molnar wrote:
> 'perf kvm' is the tool that is making Linux instrumentation friendlier to KVM
> developers. Can you think of ways to utilize this new feature there?
>
> For example a new 'perf kvm stat' feature could pass the exclusion bits to perf
> stat automatically. 'perf kvm record' could record on the guest only by
> default.
Yes, that would make sense. 'perf kvm' can default to guest-only
profiling. Hmm, but that would change existing behavior. It is probably
better to bind it to the --guest and --host parameters of perf-kvm.
Okay, this changes existing behavior too, so the default-thing seems the
better choice :)
Joerg
prev parent reply other threads:[~2011-05-11 16:42 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-10 14:35 [RFC][PATCH 0/3] perf support for amd guest/host-only bits Joerg Roedel
2011-05-10 14:35 ` [PATCH 1/3] perf, core: Introduce attrs to count in either host or guest mode Joerg Roedel
2011-05-10 14:45 ` Peter Zijlstra
2011-05-10 14:59 ` Roedel, Joerg
2011-05-10 15:18 ` Peter Zijlstra
2011-05-10 15:38 ` Roedel, Joerg
2011-05-10 16:07 ` Peter Zijlstra
2011-05-10 16:25 ` Roedel, Joerg
2011-05-11 11:44 ` Avi Kivity
2011-05-11 11:45 ` Avi Kivity
2011-05-11 13:49 ` Peter Zijlstra
2011-05-11 13:52 ` Avi Kivity
2011-05-11 14:02 ` Ingo Molnar
2011-05-10 14:35 ` [PATCH 2/3] perf, x86: Use GO/HO bits in perf-ctr Joerg Roedel
2011-05-10 14:48 ` Peter Zijlstra
2011-05-10 15:04 ` Roedel, Joerg
2011-05-11 12:58 ` Avi Kivity
2011-05-12 9:21 ` Joerg Roedel
2011-05-10 14:35 ` [PATCH 3/3] perf, tools: Add support for guest/host-only profiling Joerg Roedel
2011-05-10 14:50 ` Peter Zijlstra
2011-05-10 15:08 ` Roedel, Joerg
2011-05-10 15:25 ` Peter Zijlstra
2011-05-10 15:46 ` Roedel, Joerg
2011-05-10 16:09 ` Peter Zijlstra
2011-05-10 15:21 ` [RFC][PATCH 0/3] perf support for amd guest/host-only bits Ingo Molnar
2011-05-10 15:50 ` Roedel, Joerg
2011-05-10 20:41 ` Ingo Molnar
2011-05-11 8:57 ` Joerg Roedel [this message]
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