Re: [PATCH] futex: add FUTEX_SET_WAIT operation

Ingo Molnar
2009-11-17T17:25:17Z

* 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.

Ingo