From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755329AbcI0LjF (ORCPT ); Tue, 27 Sep 2016 07:39:05 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:41701 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752768AbcI0LjA (ORCPT ); Tue, 27 Sep 2016 07:39:00 -0400 Date: Tue, 27 Sep 2016 13:38:57 +0200 From: Peter Zijlstra To: Shuah Khan Cc: mingo@redhat.com, acme@kernel.org, alexander.shishkin@linux.intel.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] perf: sched-pipe add support for packet I/O mode Message-ID: <20160927113857.GL5016@twins.programming.kicks-ass.net> References: <1474936184-24269-1-git-send-email-shuahkh@osg.samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1474936184-24269-1-git-send-email-shuahkh@osg.samsung.com> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 26, 2016 at 06:29:44PM -0600, Shuah Khan wrote: > Add support to run sched-pipe benchmark test on pipe with packet I/O mode. > > Signed-off-by: Shuah Khan > --- > tools/perf/bench/sched-pipe.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c > index 1dc2d13..c6e1b7a 100644 > --- a/tools/perf/bench/sched-pipe.c > +++ b/tools/perf/bench/sched-pipe.c > @@ -41,9 +41,16 @@ static int loops = LOOPS_DEFAULT; > /* Use processes by default: */ > static bool threaded; > > +/* Use non-packet (normal) I/O mode by default. > + * In packet mode, each write is a separate packet. > + */ Also, https://lkml.kernel.org/r/CA+55aFyQYJerovMsSoSKS7PessZBr4vNp-3QUUwhqk4A4_jcbg@mail.gmail.com