Am 23.09.16 um 21:50 schrieb Irmen de Jong:
The problem boiled down to a performance issue in window's 32 bits
implementation of the
hypot() function (which abs(z) uses when z is a complex number type).
The 64 bits windows crt lib version is much faster (on par with what is to be
expected
On 20-9-2016 22:38, Irmen de Jong wrote:
> Hi,
>
> I've stumbled across a peculiar performance issue with Pypy across some
> different
> platforms. It was very visible in some calculation heavy code that I wrote
> that uses
> Python's complex number type to calculate the well-known Mandelbrot
On 21-9-2016 1:20, Chris Kaynor wrote:
>
> Regarding the performance decrease, it may be worthwhile to push the report
> to a PyPy specific forum - a PyPy developer will probably see it here, but
> you may get a faster response on a forum specific to PyPy.
You're right.
I don't know the best
On Tue, Sep 20, 2016 at 3:59 PM, Chris Angelico wrote:
> On Wed, Sep 21, 2016 at 8:50 AM, Irmen de Jong
> wrote:
> >> 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
On Wed, Sep 21, 2016 at 8:50 AM, Irmen de Jong wrote:
>> 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
>
>
> Perhaps. Though I can't really imagine what's
On 20-9-2016 22:43, Chris Angelico wrote:
> On Wed, Sep 21, 2016 at 6:38 AM, Irmen de Jong 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
On Wed, Sep 21, 2016 at 6:38 AM, Irmen de Jong 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: