[Octave-bug-tracker] [bug #60984] Load function on Windows is significantly slower than on Linux

[Markus Mützel]

Follow-up Comment #9, bug #60984 (project octave):

I tried with a similar approach like the one for bug #59704.

Without the change:

>> tst_bug60984

Elapsed time is 0.023623 seconds.
Elapsed time is 1.57969 seconds.
Elapsed time is 14.6429 seconds.
>> tst_bug60984
Elapsed time is 0.00835681 seconds.
Elapsed time is 1.60271 seconds.
Elapsed time is 16.156 seconds.


With the change:

>> tst_bug60984

Elapsed time is 0.00928807 seconds.
Elapsed time is 1.48853 seconds.
Elapsed time is 5.68233 seconds.
>> tst_bug60984
Elapsed time is 0.00902891 seconds.
Elapsed time is 1.4711 seconds.
Elapsed time is 5.67159 seconds.


I'm attaching a diff with the changes I tried.
I was trying to find out if this would also influence the time for writing the
file. But that didn't make a huge difference like you can see in the timing.

Reading the files is notably faster. But still a lot slower than the Linux
timings.

If we want to do these changes, we should probably add similar ones for
double/float and real/complex matrices. Maybe also sparse?


(file #51714)
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Additional Item Attachment:

File name: bug609874-load-save-d.diff     Size:1 KB
   
<https://file.savannah.gnu.org/file/bug609874-load-save-d.diff?file_id=51714>



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