From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nivedita Singhvi Subject: Re: Early SPECWeb99 results on 2.5.33 with TSO on e1000 Date: Thu, 5 Sep 2002 15:39:31 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <1031265571.3d77dd23caec4@imap.linux.ibm.com> References: <200209052211.g85MBFdm099387@tempest.prismnet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: jamal , linux-kernel@vger.kernel.org, netdev@oss.sgi.com Return-path: To: Troy Wilson In-Reply-To: <200209052211.g85MBFdm099387@tempest.prismnet.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Quoting Troy Wilson : > > Do you have any stats from the hardware that could show > > retransmits etc; > > I'll gather netstat -s after runs with and without TSO enabled. > Anything else you'd like to see? Troy, this is pointing out the obvious, but make sure you have the before stats as well :)... > > have you tested this with zero copy as well (sendfile) > > Yes. My webserver is Apache 2.0.36, which uses sendfile for > anything > over 8k in size. But, iirc, Apache sends the http headers using > writev. SpecWeb99 doesnt execute the path that might benefit the most from this patch - sendmsg() of large files - large writes going down.. thanks, Nivedita