[Octave-bug-tracker] [bug #43327] dir function is too slow

[Mike Miller]

Follow-up Comment #5, bug #43327 (project octave):

I don't know that vectorizing stat/lstat would help much. The profiler tells
me that dir.m itself accounts for about 18% of the runtime on a large
directory, with other big contributors being datenum, strchr, strjoin,
fileparts, fullfile, and repmat. I completely stubbed out the calls to lstat
inside the file loop and there was no improvement at all. So unless you mean
replacing the entire file loop with a single call that populates the entire
info struct array formatted correctly, I don't see how pulling out stat/lstat
alone would help much.

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