From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesper Dangaard Brouer Subject: Re: [PATCH net-next] mlx4: exploit skb->xmit_more to conditionally send doorbell Date: Thu, 25 Sep 2014 16:43:33 +0200 Message-ID: <20140925164333.7cba128a@redhat.com> References: <1411654669.16953.17.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: brouer@redhat.com, David Miller , netdev , Amir Vadai , John Fastabend To: Eric Dumazet Return-path: Received: from mx1.redhat.com ([209.132.183.28]:33668 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751641AbaIYOnl (ORCPT ); Thu, 25 Sep 2014 10:43:41 -0400 In-Reply-To: <1411654669.16953.17.camel@edumazet-glaptop2.roam.corp.google.com> Sender: netdev-owner@vger.kernel.org List-ID: On Thu, 25 Sep 2014 07:17:49 -0700 Eric Dumazet wrote: > From: Eric Dumazet > > Tested with a modified pktgen version, I got a 40% increase of > throughput. Pktgen is artificial benchmarking, you know ;-) :-P If you really must use pktgen for this, you can use an unmodified pktgen against the qdisc layer by adding a VLAN interface on-top of the device you want to test. I blame John, for telling me this ;-) /me running away -- Best regards, Jesper Dangaard Brouer MSc.CS, Sr. Network Kernel Developer at Red Hat Author of http://www.iptv-analyzer.org LinkedIn: http://www.linkedin.com/in/brouer