From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: rps perfomance WAS(Re: rps: question Date: Thu, 15 Apr 2010 01:51:17 -0700 (PDT) Message-ID: <20100415.015117.107243799.davem@davemloft.net> References: <1271271222.4567.51.camel@bigi> <20100414124426.6aee95c3@nehalam> <1271275130.16881.1749.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: shemminger@vyatta.com, hadi@cyberus.ca, therbert@google.com, netdev@vger.kernel.org, robert@herjulf.net, xiaosuo@gmail.com, andi@firstfloor.org To: eric.dumazet@gmail.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:49433 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757513Ab0DOIvN (ORCPT ); Thu, 15 Apr 2010 04:51:13 -0400 In-Reply-To: <1271275130.16881.1749.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Wed, 14 Apr 2010 21:58:50 +0200 > Every time we change RPS to be on or off, we might have some extra > noise. Maybe we already have this problem with irqbalance ? irqbalance should never move network device interrupts around under normal circumstances. Arjan assured me that there is specific logic in the irqbalance daemon to not move NIC interrupts around once a target has been choosen.