netdev - Re: [RFC PATCH v9 00/16] Provide a zero-copy method on KVM virtio-net.

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Message-ID: <1281490993.3391.25.camel@localhost.localdomain>
Date:	Tue, 10 Aug 2010 18:43:13 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	xiaohui.xin@...el.com
Cc:	netdev@...r.kernel.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, mst@...hat.com, mingo@...e.hu,
	davem@...emloft.net, herbert@...dor.apana.org.au,
	jdike@...ux.intel.com
Subject: Re: [RFC PATCH v9 00/16] Provide a zero-copy method on KVM
 virtio-net.

On Tue, 2010-08-10 at 18:23 -0700, Shirley Ma wrote:
> Also I found some vhost performance regression on the new
> kernel with tuning. I used to get 9.4Gb/s, now I couldn't get it. 

I forgot to mention the kernel I used 2.6.36 one. And I found the native
host BW is limited to 8.0Gb/s, so the regression might come from the
device driver not vhost.

Shirley



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