From mboxrd@z Thu Jan 1 00:00:00 1970 From: Changli Gao Subject: Re: rps perfomance WAS(Re: rps: question Date: Fri, 16 Apr 2010 07:56:28 +0800 Message-ID: References: <1271268242.16881.1719.camel@edumazet-laptop> <1271271222.4567.51.camel@bigi> <20100415.014857.168270765.davem@davemloft.net> <1271332528.4567.150.camel@bigi> <4BC741AE.3000108@hp.com> <1271362581.23780.12.camel@bigi> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Rick Jones , David Miller , eric.dumazet@gmail.com, therbert@google.com, netdev@vger.kernel.org, robert@herjulf.net, andi@firstfloor.org To: hadi@cyberus.ca Return-path: Received: from mail-gy0-f174.google.com ([209.85.160.174]:48013 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758042Ab0DOX4w convert rfc822-to-8bit (ORCPT ); Thu, 15 Apr 2010 19:56:52 -0400 Received: by gyg13 with SMTP id 13so1032204gyg.19 for ; Thu, 15 Apr 2010 16:56:51 -0700 (PDT) In-Reply-To: <1271362581.23780.12.camel@bigi> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, Apr 16, 2010 at 4:16 AM, jamal wrote: > > Sounds interesting. > Wikipedia information overload. Any arch description of the HP9000? > Did your scheme use IPIs to message the other CPUs? > If you doubt the cost of smp_call_function_single(), how about having a try with my another patch, which implements the similar of RPS, but uses kernel threads instead, so no explicit IPI. http://patchwork.ozlabs.org/patch/38319/ --=20 Regards=EF=BC=8C Changli Gao(xiaosuo@gmail.com)