linux-kernel - Re: [RFC PATCH 2/2] macvtap: TX zero copy between guest and host kernel

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Message-ID: <1284531675.24603.259.camel@localhost.localdomain>
Date:	Tue, 14 Sep 2010 23:21:15 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	Arnd Bergmann <arnd@...db.de>, Avi Kivity <avi@...hat.com>,
	"Xin, Xiaohui" <xiaohui.xin@...el.com>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 2/2] macvtap: TX zero copy between guest and host
 kernel

On Wed, 2010-09-15 at 07:12 +0200, Michael S. Tsirkin wrote:
> Yes, I agree this patch is useful for demo purposes:
> simple, and shows what kind of performance gains
> we can expect for TX. 

Any other issue you can see in this patch beside vhost descriptors
update?  Don't you think once I address vhost_add_used_and_signal update
issue, it is a simple and complete patch for macvtap TX zero copy?

Thanks
Shirley

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