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Subject: Re: [RFC PATCH 2/2] macvtap: TX zero copy between guest and host
 kernel
From: Shirley Ma <mashirle@us.ibm.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Avi Kivity <avi@redhat.com>,
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Date: Tue, 14 Sep 2010 09:00:25 -0700
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On Tue, 2010-09-14 at 17:22 +0200, Michael S. Tsirkin wrote:
> I would expect this to hurt performance significantly.
> We could do this for asynchronous requests only to avoid the
> slowdown. 

Is kiocb in sendmsg helpful here? It is not used now.

Shirley