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Date: Fri, 31 Jan 2014 12:01:37 -0800
Message-ID: <CAGQ1y=72+N4=yjVpjsTKjr-8xSQRS2xw4gcOGOipLgwPwgnA7A@mail.gmail.com>
Subject: Re: [RFC][PATCH v2 5/5] mutex: Give spinners a chance to
 spin_on_owner if need_resched() triggered while queued
From: Jason Low <jason.low2@hp.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Jason Low <jason.low2@hp.com>, Ingo Molnar <mingo@redhat.com>,
        Paul McKenney <paulmck@linux.vnet.ibm.com>,
        Waiman Long <Waiman.Long@hp.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Rik van Riel <riel@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Davidlohr Bueso <davidlohr@hp.com>, "H. Peter Anvin" <hpa@zytor.com>,
        Andi Kleen <andi@firstfloor.org>,
        "Chandramouleeswaran, Aswin" <aswin@hp.com>,
        "Norton, Scott J" <scott.norton@hp.com>, chegu_vinod@hp.com
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Sender: linux-kernel-owner@vger.kernel.org

On Fri, Jan 31, 2014 at 6:09 AM, Peter Zijlstra <peterz@infradead.org> wrote:

> I've downloaded AIM7 from sf.net and I hope I'm running it with 100+
> loads but I'm not entirely sure I got this thing right, its not really
> making progress with or without patch :/

Ingo's program http://lkml.org/lkml/2006/1/8/50 using the V option may
be able to generate similar mutex contention.

Currently still getting soft lockups with the updated version.
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