netdev - Re: Network performance with small packets

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Message-ID: <1299621444.25664.77.camel@localhost.localdomain>
Date:	Tue, 08 Mar 2011 13:57:24 -0800
From:	Shirley Ma <mashirle@...ibm.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	"Michael S. Tsirkin" <mst@...hat.com>,
	Krishna Kumar2 <krkumar2@...ibm.com>,
	David Miller <davem@...emloft.net>, kvm@...r.kernel.org,
	netdev@...r.kernel.org, steved@...ibm.com
Subject: Re: Network performance with small packets

On Wed, 2011-02-09 at 11:07 +1030, Rusty Russell wrote:
> I've finally read this thread... I think we need to get more serious
> with our stats gathering to diagnose these kind of performance issues.
> 
> This is a start; it should tell us what is actually happening to the
> virtio ring(s) without significant performance impact... 

Should we also add similar stat on vhost vq as well for monitoring
vhost_signal & vhost_notify?

Shirley

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