From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: Network performance with small packets Date: Wed, 2 Feb 2011 12:49:47 +0200 Message-ID: <20110202104946.GC8505@redhat.com> References: <20110201214211.GB31105@redhat.com> <1296597185.26937.829.camel@localhost.localdomain> <20110201215603.GA31348@redhat.com> <1296601197.26937.833.camel@localhost.localdomain> <20110202044002.GB3818@redhat.com> <1296626748.26937.852.camel@localhost.localdomain> <1296627549.26937.856.camel@localhost.localdomain> <20110202062950.GD3818@redhat.com> <1296630891.26937.870.camel@localhost.localdomain> <1296632029.26937.871.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Sridhar Samudrala , Steve Dobbelstein , David Miller , kvm@vger.kernel.org, mashirle@linux.vnet.ibm.com, netdev@vger.kernel.org To: Shirley Ma Return-path: Received: from mx1.redhat.com ([209.132.183.28]:33079 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752922Ab1BBKuF (ORCPT ); Wed, 2 Feb 2011 05:50:05 -0500 Content-Disposition: inline In-Reply-To: <1296632029.26937.871.camel@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Feb 01, 2011 at 11:33:49PM -0800, Shirley Ma wrote: > On Tue, 2011-02-01 at 23:14 -0800, Shirley Ma wrote: > > w/i guest change, I played around the parameters,for example: I could > > get 3.7Gb/s with 42% CPU BW increasing from 2.5Gb/s for 1K message > > size, > > w/i dropping packet, I was able to get up to 6.2Gb/s with similar CPU > > usage. > > I meant w/o guest change, only vhost changes. Sorry about that. > > Shirley Ah, excellent. What were the parameters? -- MST