From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexei Starovoitov Subject: Re: [PATCH v3 net-next] pktgen: introduce 'rx' mode Date: Tue, 05 May 2015 11:30:06 -0700 Message-ID: <55490C2E.5000702@plumgrid.com> References: <1430457130-16003-1-git-send-email-ast@plumgrid.com> <20150502104621.4fede885@redhat.com> <5544F4D7.50202@plumgrid.com> <20150502184625.25426091@redhat.com> <55450464.8060109@plumgrid.com> <20150505201546.0f998668@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: "David S. Miller" , Eric Dumazet , netdev@vger.kernel.org, Robert Olsson , Ben Greear To: Jesper Dangaard Brouer Return-path: Received: from mail-ie0-f170.google.com ([209.85.223.170]:35255 "EHLO mail-ie0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752842AbbEESaJ (ORCPT ); Tue, 5 May 2015 14:30:09 -0400 Received: by ieczm2 with SMTP id zm2so9906591iec.2 for ; Tue, 05 May 2015 11:30:08 -0700 (PDT) In-Reply-To: <20150505201546.0f998668@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: On 5/5/15 11:15 AM, Jesper Dangaard Brouer wrote: > > On Sat, 02 May 2015 10:07:48 -0700 Alexei Starovoitov wrote: >> On 5/2/15 9:46 AM, Jesper Dangaard Brouer wrote: > [...] >> >> all makes sense. >> btw, I'm off the grid till Monday and it sounds like you see concrete >> spots in the code to hack this stuff in, so if you want to take over, >> please go ahead :) > > Okay, I'll address my own concerns and post a patch in your name("From:") lol :) I seriously don't care about commit count. Thank you for taking over. I'm swamped with tracing stuff at the moment. > As I would like to see this feature in pktgen, as it provides a really > easy and quick way to measure/profile changes in the ingress path... same here. my motivation for this patch is to have a common tool to measure ingress speed, so we can have concrete numbers to talk about. Also, as you mentioned, there is always a danger of 'zooming in'. Any type of benchmarking shouldn't be blindly followed. At the same time all numbers are useful. They are different datapoints that make a complete picture.