From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nivedita Singhvi Subject: Re: impressive throughput on 2.5.73 Date: Wed, 02 Jul 2003 19:58:41 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <3F039BE1.2080008@us.ibm.com> References: <1057193766.31286.843.camel@nighthawk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@oss.sgi.com, Scott Feldman Return-path: To: Dave Hansen In-Reply-To: <1057193766.31286.843.camel@nighthawk> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org Dave Hansen wrote: > 176 requests/sec - 110.0 MB/second - 0.6 MB/request > > Server CPU breakdown. > 2% system > 7% user > 91% idle > > client profile: > 33363 total 0.0196 > 9575 poll_idle 132.9861 > 5099 __copy_user_intel 32.6859 > 3307 schedule 2.1418 > 1753 __wake_up 39.8409 > 667 tcp_v4_rcv 0.3382 Nice numbers :). In addition to NAPI, would be nice to stick in more adapters. Any idea why __wake_up should be so expensive on the client side? thanks, Nivedita