Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753418AbbG0RL3 (ORCPT ); Mon, 27 Jul 2015 13:11:29 -0400 Received: from g2t2354.austin.hp.com ([15.217.128.53]:53354 "EHLO g2t2354.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752621AbbG0RL0 (ORCPT ); Mon, 27 Jul 2015 13:11:26 -0400 Message-ID: <55B6663B.2060707@hp.com> Date: Mon, 27 Jul 2015 13:11:23 -0400 From: Waiman Long User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130109 Thunderbird/10.0.12 MIME-Version: 1.0 To: Davidlohr Bueso CC: Peter Zijlstra , Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org, Scott J Norton , Douglas Hatch Subject: Re: [PATCH v3 2/7] locking/pvqspinlock: Add pending bit support References: <1437595962-21472-1-git-send-email-Waiman.Long@hp.com> <1437595962-21472-3-git-send-email-Waiman.Long@hp.com> <1437952192.25997.3.camel@stgolabs.net> In-Reply-To: <1437952192.25997.3.camel@stgolabs.net> 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: 1071 Lines: 27 On 07/26/2015 07:09 PM, Davidlohr Bueso wrote: > On Wed, 2015-07-22 at 16:12 -0400, Waiman Long wrote: >> Using a locking microbenchmark on the same system, the locking >> rates in (kops/s) were: >> >> Threads Rate w/o patch Rate with patch >> ------- -------------- --------------- >> 2 (same socket) 6,515,265 7,077,476 >> 2 (diff sockets) 2,967,145 4,353,851 > At this level stddev would be nice to have, as these sort of things have > a lot of variation. > > Out of general interest, are these microbenchmarks available? Would you > care to add something like that to perf-bench? I assume they would > probably be x86 specific. Ingo has asked similar question and he suggested doing an user-space implementation in perf bench. I will take a further look at that when I have time. Cheers, Longman -- 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/