Date: Wed, 18 Nov 2009 10:49:51 +0900 (JST)
Message-Id: <20091118.104951.809240127838837992.mitake@dcl.info.waseda.ac.jp>
To: mingo@elte.hu
Cc: peterz@infradead.org, walken@google.com, dvhltc@us.ibm.com,
       tglx@linutronix.de, linux-kernel@vger.kernel.org, acme@redhat.com
Subject: Re: [PATCH] futex: add FUTEX_SET_WAIT operation
From: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
In-Reply-To: <20091117172456.GA14749@elte.hu>
References: <20091117081817.GA7963@elte.hu>
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	<20091117172456.GA14749@elte.hu>
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From: Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] futex: add FUTEX_SET_WAIT operation
Date: Tue, 17 Nov 2009 18:24:56 +0100

> 
> * Peter Zijlstra <peterz@infradead.org> 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 :-)
> 
> Looks nice! Any futex performance measurements within it could be added 
> to perf bench - with standardized options and output, etc.

It is interesting for me, too.
Can I add your test programs to perf bench, Michel and Darren?
Of course, I'll do every odd job if you permit.

   Hitoshi

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