From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [RFC net-next PATCH V1 0/9] net: fragmentation performance scalability on NUMA/SMP systems Date: Sun, 25 Nov 2012 08:11:31 -0800 Message-ID: <1353859891.30446.634.camel@edumazet-glaptop> References: <20121123130749.18764.25962.stgit@dragon> <1353810665.2590.4774.camel@edumazet-glaptop> <1353833627.11754.134.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: "David S. Miller" , Florian Westphal , netdev@vger.kernel.org, Pablo Neira Ayuso , Thomas Graf , Cong Wang , Patrick McHardy , "Paul E. McKenney" , Herbert Xu To: Jesper Dangaard Brouer Return-path: Received: from mail-ie0-f174.google.com ([209.85.223.174]:35074 "EHLO mail-ie0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752964Ab2KYQLe (ORCPT ); Sun, 25 Nov 2012 11:11:34 -0500 Received: by mail-ie0-f174.google.com with SMTP id k11so5214340iea.19 for ; Sun, 25 Nov 2012 08:11:34 -0800 (PST) In-Reply-To: <1353833627.11754.134.camel@localhost> Sender: netdev-owner@vger.kernel.org List-ID: On Sun, 2012-11-25 at 09:53 +0100, Jesper Dangaard Brouer wrote: > Yes, for the default large 64k packets size, its just a "fake" > benchmark. And notice with my fixes, we are even faster than the > none-frag/single-UDP packet case... but its because we are getting a > GSO/GRO effect. Could you elaborate on this GSO/GRO effect ?