green_threads

[Andrew Whitworth]

Thanks for the information, Moritz! We may need to do a little bit
more digging before a merge. I don't want there to be any significant
performance decrease for the common single-threaded case. We'll have
to figure out where the slowdown is happening and eliminate the
problem.

thanks,

--Andrew Whitworth



On Tue, Oct 25, 2011 at 6:31 AM, Moritz Lenz <moritz at faui2k3.org> wrote:
> Hi all,
>
> I've tested rakudo on top of the green_threads branch.
> The good news is that all tests pass.
> The bad news is that the first (and so far only) benchmark I've tried is
> slower than on master.
>
> As a benchmark I used
> https://raw.github.com/colomon/mandelbrot/master/bin/mandelbrot-color.pl
> with command line argument 201
>
> Analyzing script and raw results can be found at
> https://gist.github.com/1312199
>
> The output is:
> Original: 33.965 ± 0.0858943537143158
> Patched:  36.1474 ± 0.0471445436927753
> Patched version is slower than the original by 6.43%, signficance 23.2σ
>
> (here "patched" refers to green_threads commit RELEASE_3_9_0-110-g807df71
> and "original" to master commit RELEASE_3_9_0-50-gec17023)
>
> Cheers,
> Moritz
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