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Date: Tue, 29 Nov 2011 17:19:59 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [RFC] virtio: use mandatory barriers for remote processor vdevs
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On Tue, Nov 29, 2011 at 03:57:19PM +0200, Ohad Ben-Cohen wrote:
> > Is an extra branch faster or slower than reverting d57ed95?
> 
> Sorry, unfortunately I have no way to measure this, as I don't have
> any virtualization/x86 setup. I'm developing on ARM SoCs, where
> virtualization hardware is coming, but not here yet.

You can try using the micro-benchmark in tools/virtio/.
That does not need virtualization.

-- 
MST