pypy on windows much slower than linux/mac when using complex number type?
Chris Angelico
rosuav at gmail.com
Tue Sep 20 16:43:43 EDT 2016
On Wed, Sep 21, 2016 at 6:38 AM, Irmen de Jong <irmen.NOSPAM at xs4all.nl> wrote:
> Windows: 64 bits Windows 7, Intel Core 2 Quad 3.4 Ghz
> Linux: 32 bits Mint 18, Virtualbox VM on above windows machine
> Mac mini: OS X 10.11.6, Intel Core 2 Duo 2.53 Ghz
>
> The test code I've been using is here:
> https://gist.github.com/irmen/c6b12b4cf88a6a4fcf5ff721c7089078
>
> Test results:
> function: mandel / iterations
> Mac mini, Pypy 5.4.1 (64-bit): 0.81 sec / 0.65 sec
> Linux, Pypy 5.1 (32-bit): 1.06 sec / 0.64 sec
> Windows, Pypy 5.4.1 (32-bit): 5.59 sec / 2.87 sec
>
>
> What could cause such a huge difference?
Dunno if it's the cause or not, but you're running a 32-bit PyPy on a
64-bit Windows. I could well imagine that that has some odd
significance.
ChrisA
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