[pypy-dev] Poor performance for Krakatau

[Maciej Fijalkowski]

Hi Robert.

I've been looking at krakatau performance for a while, it's almost
exclusively warmup time. We are going to address it, I hope rather
sooner than later :-)

On Mon, Nov 10, 2014 at 12:41 AM, Robert Grosse <n210241048576 at gmail.com> wrote:
> In some cases, Pypy performs worse than CPython when running Krakatau, and
> it has gotten a lot worse from 2.3 to 2.5
>
> My benchmark is https://github.com/Storyyeller/Krakatau/tree/pypy_benchmark
> (for future reference, commit d889c7f44723e6d66a3630681f0385f173317dc9)
>
> You can run it with pypy Krakatau\benchmark.py -path <path to Java rt.jar>
>
> I get the following timings
>
> CPython: 17.43s
> Pypy 2.3: 38.48s (build pypy-c-jit-71056-c8e3b8cbc843-win32)
> Pypy 2.4: 39.92s (build pypy-c-jit-72200-375133966c12-win32)
> Pypy 2.5: 49.94s (build pypy-c-jit-74404-9fd586fe0fe5-win32)
>
> Not only was it slower than CPython to begin with, but it got much worse
> recently.
>
>
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