From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: [PATCH v3 1/6] net: pad skb data and shinfo as a whole rather than individually Date: Wed, 1 Feb 2012 09:38:47 +0000 Message-ID: <1328089127.17444.9.camel@zakaz.uk.xensource.com> References: <1327494389.24561.316.camel@zakaz.uk.xensource.com> <1327494434-21566-1-git-send-email-ian.campbell@citrix.com> <1327495879.2425.29.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1327496953.24561.323.camel@zakaz.uk.xensource.com> <1327497157.2425.34.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1328020528.26983.396.camel@zakaz.uk.xensource.com> <20120131145417.GA19990@electric-eye.fr.zoreil.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Eric Dumazet , "netdev@vger.kernel.org" , "David S. Miller" To: Francois Romieu Return-path: Received: from smtp.eu.citrix.com ([62.200.22.115]:24777 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753917Ab2BAJiu (ORCPT ); Wed, 1 Feb 2012 04:38:50 -0500 In-Reply-To: <20120131145417.GA19990@electric-eye.fr.zoreil.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 2012-01-31 at 14:54 +0000, Francois Romieu wrote: > Ian Campbell : > [...] > > I'm using a single NIC transmitter, no delay, 1000000 clones of each skb > > and I've tried 60 and 1500 byte packets. In the 60 byte case I see more > > like 50k pps > > At this stage 'tools/perf/perf top -G graph' sometimes helps me discover > debug options that I had left enabled. Thanks for the tip, I'll give it a look. Ian.