From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Theurer Subject: Re: Network performance with small packets Date: Tue, 08 Mar 2011 20:21:18 -0600 Message-ID: <1299637278.13202.61.camel@localhost.localdomain> References: <20110127.130240.104065182.davem@davemloft.net> <20110202044222.GC3818@redhat.com> <201102091107.20270.rusty@rustcorp.com.au> <1299621444.25664.77.camel@localhost.localdomain> Reply-To: habanero@linux.vnet.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Rusty Russell , "Michael S. Tsirkin" , Krishna Kumar2 , David Miller , kvm@vger.kernel.org, netdev@vger.kernel.org, steved@us.ibm.com, Tom Lendacky To: Shirley Ma Return-path: In-Reply-To: <1299621444.25664.77.camel@localhost.localdomain> Sender: kvm-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Tue, 2011-03-08 at 13:57 -0800, Shirley Ma wrote: > 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? Tom L has started using Rusty's patches and found some interesting results, sent yesterday: http://marc.info/?l=kvm&m=129953710930124&w=2 -Andrew > > Shirley > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html