Message-ID: <1437954503.25997.4.camel@stgolabs.net>
Subject: Re: [PATCH v3 2/7] locking/pvqspinlock: Add pending bit support
From: Davidlohr Bueso <dave@stgolabs.net>
To: Waiman Long <Waiman.Long@hp.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>,
        x86@kernel.org, linux-kernel@vger.kernel.org,
        Scott J Norton <scott.norton@hp.com>,
        Douglas Hatch <doug.hatch@hp.com>
Date: Sun, 26 Jul 2015 16:48:23 -0700
In-Reply-To: <1437595962-21472-3-git-send-email-Waiman.Long@hp.com>
References: <1437595962-21472-1-git-send-email-Waiman.Long@hp.com>
	 <1437595962-21472-3-git-send-email-Waiman.Long@hp.com>
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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.

Thanks,
Davidlohr


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