[Numpy-discussion] NumPy 1.2.0b2 released

Andrew Dalke dalke@dalkescientific....
Fri Aug 15 20:43:34 CDT 2008

On Aug 15, 2008, at 6:41 PM, Andrew Dalke wrote:
> I don't think it's enough.  I don't like environmental
> variable tricks like that.  My tests suggest:
>    current SVN: 0.12 seconds
>    my patch: 0.10 seconds
>    removing some top-level imports: 0.09 seconds
>    my patch and removing some
>       additional top-level imports: 0.08 seconds (this is a guess)
> First, I reverted my patch, so my import times went from
> 0.10 second to 0.12 seconds.

Turns out I didn't revert everything.

As of the SVN version from 10 minutes ago, "import numpy" on my
machine takes 0.18 seconds, not 0.12 seconds.  My patch should
cut the import time by about 30-40% more from what it is.
On some machines.  Your milage may vary :)

In my issue report I said the import time was 0.15 seconds.
Adding up the times I saved doesn't match up with my final value.
So take my numbers as guidelines.

For those curious, top cumulative import times from SVN are:

0.184 numpy (None)
0.103 add_newdocs (numpy)
0.097 lib (add_newdocs)
0.049 type_check (lib)
0.048 numpy.core.numeric (type_check)
0.028 io (lib)
0.022 ctypeslib (numpy)
0.022 ctypes (ctypeslib)
0.021 random (numpy)
0.021 mtrand (random)
0.019 _import_tools (numpy)
0.019 glob (_import_tools)
0.018 _datasource (io)
0.016 fnmatch (glob)
0.015 numpy.testing (numpy.core.numeric)
0.014 re (fnmatch)


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