From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH] Enhance perf to collect KVM guest os statistics from
 host side
Date: Tue, 16 Mar 2010 13:10:21 +0200
Message-ID: <4B9F671D.5060001@redhat.com>
References: <1268717232.2813.36.camel@localhost> <4B9F19F7.6000309@redhat.com> <20100316072449.GB11881@elte.hu> <4B9F4D74.4090403@redhat.com> <20100316095336.GI7961@elte.hu> <4B9F59DE.1060008@redhat.com> <20100316102052.GC10069@elte.hu> <4B9F603B.4080004@redhat.com> <20100316105021.GA14344@elte.hu>
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Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Sheng Yang <sheng@linux.intel.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	Marcelo Tosatti <mtosatti@redhat.com>,
	oerg Roedel <joro@8bytes.org>,
	Jes Sorensen <Jes.Sorensen@redhat.com>,
	Gleb Natapov <gleb@redhat.com>,
	Zachary Amsden <zamsden@redhat.com>, ziteng.huang@intel.com
To: Ingo Molnar <mingo@elte.hu>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <20100316105021.GA14344@elte.hu>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

On 03/16/2010 12:50 PM, Ingo Molnar wrote:
>
>> I'm confused - initrd seems to be guest-side.  I was talking about the host
>> side.
>>      
> host side doesnt need much support - just some client capability in perf
> itself. I suspect vmchannels are sufficiently flexible and configuration-free
> for such purposes? (i.e. like a filesystem in essence)
>    

I haven't followed vmchannel closely, but I think it is.  vmchannel is 
terminated in qemu on the host side, not in the host kernel.  So perf 
would need to connect to qemu.

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