Re: [PATCH] futex: add FUTEX_SET_WAIT operation

[Darren Hart]

Ingo Molnar wrote:
> * Peter Zijlstra <peterz@xxxxxxxxxxxxx> 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.
>
> 	Ingo

I'll take a look at perf this week and see what would be required to 
share (?) tests between perf and futextest.

--
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team
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