[Octave-bug-tracker] [bug #51871] loading '-ascii' format files is slow

[Rik]

Update of bug #51871 (project octave):

                  Status:                    None => Confirmed              
                 Summary: load ascii-based numeric file is significantly slow
=> loading '-ascii' format files is slow

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Follow-up Comment #4:

Just to give an idea of what is possible, I created the large variable 'a' and
saved it both in an ascii file and in Octave's own text format with


save ('-text', 'odat.txt', 'a');


Benchmarking the read shows that ASCII files load ~4X slower than even regular
text files.


tic; b = load ('dat.txt'); toc
Elapsed time is 4.86173 seconds.
clear b
tic; b = load ('odat.txt'); toc
Elapsed time is 1.13398 seconds.




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