From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesper Dangaard Brouer Subject: Re: [PATCH v2 net-next] net: pktgen: packet bursting via skb->xmit_more Date: Wed, 1 Oct 2014 10:16:36 +0200 Message-ID: <20141001101636.5aa27617@redhat.com> References: <1412124801-32096-1-git-send-email-ast@plumgrid.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: "David S. Miller" , Eric Dumazet , netdev@vger.kernel.org, brouer@redhat.com To: Alexei Starovoitov Return-path: Received: from mx1.redhat.com ([209.132.183.28]:11439 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750987AbaJAIQn (ORCPT ); Wed, 1 Oct 2014 04:16:43 -0400 In-Reply-To: <1412124801-32096-1-git-send-email-ast@plumgrid.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 30 Sep 2014 17:53:21 -0700 Alexei Starovoitov wrote: > This patch demonstrates the effect of delaying update of HW tailptr. > (based on earlier patch by Jesper) > > burst=1 is the default. It sends one packet with xmit_more=false > burst=2 sends one packet with xmit_more=true and > 2nd copy of the same packet with xmit_more=false > burst=3 sends two copies of the same packet with xmit_more=true and > 3rd copy with xmit_more=false > > Performance with ixgbe (usec 30): > burst=1 tx:9.2 Mpps > burst=2 tx:13.5 Mpps > burst=3 tx:14.5 Mpps full 10G line rate > > Signed-off-by: Alexei Starovoitov > --- Acked-by: Jesper Dangaard Brouer Thanks Alexei -- 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