From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH v6] net: batch skb dequeueing from softnet input_pkt_queue Date: Sun, 2 May 2010 17:46:49 +0200 Message-ID: <20100502154649.GA18063@gargoyle.fritz.box> References: <20100429182347.GA8512@gargoyle.fritz.box> <1272568347.2209.11.camel@edumazet-laptop> <20100429214144.GA10663@gargoyle.fritz.box> <20100430.163857.180417789.davem@davemloft.net> <20100501110000.GB9434@gargoyle.fritz.box> <1272783366.2173.13.camel@edumazet-laptop> <20100502092020.GA9655@gargoyle.fritz.box> <1272797690.2173.26.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: David Miller , hadi@cyberus.ca, xiaosuo@gmail.com, therbert@google.com, shemminger@vyatta.com, netdev@vger.kernel.org, lenb@kernel.org, arjan@infradead.org To: Eric Dumazet Return-path: Received: from one.firstfloor.org ([213.235.205.2]:37282 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755370Ab0EBPoV (ORCPT ); Sun, 2 May 2010 11:44:21 -0400 Content-Disposition: inline In-Reply-To: <1272797690.2173.26.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: > In this test, all 16 queues of one BCM57711E NIC (1Gb link) delivers > packets at about 1.300.000 pps to 16 cpus (one cpu per queue) and these > packets are then redistributed by RPS to same 16 cpus, generating about > 650.000 IPI per second. BTW if rps was SMT aware it could avoid a lot of the IPIs in the first place. -Andi