linux-kernel - Re: [PATCH] Enhance perf to collect KVM guest os statistics from host side

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Message-ID: <4B9F5078.10902@redhat.com>
Date:	Tue, 16 Mar 2010 11:33:44 +0200
From:	Avi Kivity <avi@...hat.com>
To:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Sheng Yang <sheng@...ux.intel.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	Marcelo Tosatti <mtosatti@...hat.com>,
	oerg Roedel <joro@...tes.org>,
	Jes Sorensen <Jes.Sorensen@...hat.com>,
	Gleb Natapov <gleb@...hat.com>,
	Zachary Amsden <zamsden@...hat.com>, zhiteng.huang@...el.com
Subject: Re: [PATCH] Enhance perf to collect KVM guest os statistics from
 host side

On 03/16/2010 11:28 AM, Zhang, Yanmin wrote:
> Sorry. I found currently --pid isn't process but a thread (main thread).
>
> Ingo,
>
> Is it possible to support a new parameter or extend --inherit, so 'perf record' and
> 'perf top' could collect data on all threads of a process when the process is running?
>    

That seems like a worthwhile addition regardless of this thread.  
Profile all current threads and any new ones.  It probably makes sense 
to call this --pid and rename the existing --pid to --thread.

-- 
error compiling committee.c: too many arguments to function

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