From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shirley Ma Subject: Re: Network performance with small packets Date: Wed, 02 Feb 2011 09:12:57 -0800 Message-ID: <1296666777.25430.37.camel@localhost.localdomain> References: <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> <20110202104946.GC8505@redhat.com> <1296661371.25430.13.camel@localhost.localdomain> <20110202154841.GB12738@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Sridhar Samudrala , Steve Dobbelstein , David Miller , kvm@vger.kernel.org, mashirle@linux.vnet.ibm.com, netdev@vger.kernel.org To: "Michael S. Tsirkin" Return-path: Received: from e3.ny.us.ibm.com ([32.97.182.143]:59622 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754627Ab1BBRNC (ORCPT ); Wed, 2 Feb 2011 12:13:02 -0500 In-Reply-To: <20110202154841.GB12738@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 2011-02-02 at 17:48 +0200, Michael S. Tsirkin wrote: > And this is with sndbuf=0 in host, yes? > And do you see a lot of tx interrupts? > How packets per interrupt? Nope, sndbuf doens't matter since I never hit reaching sock wmem condition in vhost. I am still playing around, let me know what data you would like to collect. Thanks Shirley