Re: [PATCH 0/3] perf-bench: introduce futex microbenchmarks

From: Davidlohr Bueso
Date: Mon Dec 16 2013 - 09:45:09 EST


On Mon, 2013-12-16 at 11:08 +0100, Ingo Molnar wrote:
> * Davidlohr Bueso <davidlohr@xxxxxx> wrote:
>
> > This patchset adds three programs that stress and measure different
> > futex operations: (i) uaddr hashing, (ii) wakeups and (iii)
> > requeuing/waiting.
> >
> > More details and usage examples in each individual patch, along with
> > parameter descriptions in the code.
> >
> > While the previous effort (https://lkml.org/lkml/2012/5/17/207) to
> > add futex benchmarks to perf-bench failed, I strongly believe that
> > perf is an ideal place for these kinds of programs. This patchset is
> > different from Hitoshi's because it does not try to take over
> > Darren's futextest suite, and only deals with finer grained aspects
> > of the kernel's implementation, and thus mostly useful for kernel
> > hacking. Furthermore, by being part of the kernel tree, it can get
> > more attention and naturally evolve with time.
>
> Looks pretty useful!
>
> Could the two approaches be merged?

Unless Darren doesn't want to, I don't see why not. I can resurrect
Hitoshi's original patch if/after this series is applied.

Thanks,
Davidlohr

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