From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sasha Levin <levinsasha928@gmail.com>
Subject: Re: [PATCH v2 6/8] kvm tools: Add rwlock wrapper
Date: Mon, 30 May 2011 14:12:34 +0300
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Cc: Ingo Molnar <mingo@elte.hu>, Pekka Enberg <penberg@kernel.org>,
	kvm@vger.kernel.org, asias.hejun@gmail.com, gorcunov@gmail.com,
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	Avi Kivity <avi@redhat.com>, takuya.yoshikawa@gmail.com
To: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
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On Mon, 2011-05-30 at 20:11 +0900, Takuya Yoshikawa wrote:
> On Mon, 30 May 2011 11:54:51 +0200
> Ingo Molnar <mingo@elte.hu> wrote:
> 
> > 
> > * Pekka Enberg <penberg@kernel.org> wrote:
> > 
> > > On Mon, May 30, 2011 at 12:46 PM, Sasha Levin <levinsasha928@gmail.com> wrote:
> > > > I'm just saying that we're limited to as many VCPU threads as we can
> > > > create. br_read_lock() won't do anything on a non-VCPU thread, which
> > > > makes it impossible to test it on non-VCPUs.
> > > 
> > > It sure would be useful to be able to fire up 4096 VCPUs... ;-)
> > > 
> > > But lets start out with 64 VCPUs, OK? It's better than nothing.
> > 
> > In practice 64 VPUs ought to be able to find a good deal of bugs 
> > already.
> 
> Does kvm tools allow users to start more VCPUs than the actual cores?
> 
Yes.

> IIRC, qemu rejects such settings.
> 
qemu also allows having more VCPUs than cores.

>   Takuya

-- 

Sasha.