linux-kernel - Re: [RFC PATCH 1/1] vhost: TX used buffer guest signal accumulation

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Message-ID: <1288302050.11251.26.camel@localhost.localdomain>
Date:	Thu, 28 Oct 2010 14:40:50 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	Sridhar Samudrala <sri@...ibm.com>
Cc:	"Michael S. Tsirkin" <mst@...hat.com>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 1/1] vhost: TX used buffer guest signal accumulation

On Thu, 2010-10-28 at 14:04 -0700, Sridhar Samudrala wrote:
> It would be some change in virtio-net driver that may have improved
> the
> latency of small messages which in turn would have reduced the
> bandwidth
> as TCP could not accumulate and send large packets.

I will check out any latency improvement patch in virtio_net. If that's
the case, whether it is good to have some tunable parameter to benefit
both BW and latency workload?

Shirley 

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