Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752704AbZKQQQi (ORCPT ); Tue, 17 Nov 2009 11:16:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751981AbZKQQQi (ORCPT ); Tue, 17 Nov 2009 11:16:38 -0500 Received: from e32.co.us.ibm.com ([32.97.110.150]:41664 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751902AbZKQQQh (ORCPT ); Tue, 17 Nov 2009 11:16:37 -0500 Message-ID: <4B02CC46.4020506@us.ibm.com> Date: Tue, 17 Nov 2009 08:16:06 -0800 From: Darren Hart User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: Peter Zijlstra CC: Ingo Molnar , Michel Lespinasse , Hitoshi Mitake , Thomas Gleixner , linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo Subject: Re: [PATCH] futex: add FUTEX_SET_WAIT operation References: <20091117074655.GA14023@google.com> <20091117081817.GA7963@elte.hu> <1258448121.7816.29.camel@laptop> In-Reply-To: <1258448121.7816.29.camel@laptop> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1283 Lines: 35 Peter Zijlstra wrote: > On Tue, 2009-11-17 at 09:18 +0100, Ingo Molnar wrote: >> Would you be interested in adding it as a 'perf bench futex' testcase? >> That way kernel developers could monitor futex performance in the future >> as well. >> >> See 'perf bench' in the latest perf events tree: >> >> http://people.redhat.com/mingo/tip.git/README >> >> Do 'cd tools/perf; make -j install' to install perf. > > Darren has recently been putting a lot of effort in making a futex test > suite: > > http://git.kernel.org/?p=linux/kernel/git/dvhart/futextest.git > > Its not yet complete, but hopefully it will soon be :-) > Michael, would you be willing to include a version of this test in the above test suite? If so, then in keeping with the rest of the test suite, I would recommend splitting into two tests, one of each opcode being tested, and add argument to define thread count. The run.sh script would then run each thread count as a separate test run. -- Darren Hart IBM Linux Technology Center Real-Time Linux Team -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/