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[Octave-bug-tracker] [bug #56752] Performance slowdown from version 3.2.
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From: |
Carlo de Falco |
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Subject: |
[Octave-bug-tracker] [bug #56752] Performance slowdown from version 3.2.4 through to current dev branch |
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Date: |
Mon, 11 Nov 2019 04:25:55 -0500 (EST) |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:70.0) Gecko/20100101 Firefox/70.0 |
Follow-up Comment #55, bug #56752 (project octave):
Re comment #54:
Actually, it seems my test was benchmarking
both "reshape" and "mat2cell" as can be checked by
for ii = 1:100;
tic;
n = 1e6;
x = reshape (1:n, [1000, 1000])';
t1(ii) = toc;
tic;
y = mat2cell (x, [500,20,180,300], [100,90,810]);
t2(ii)=toc;
endfor
both seem to be affected by the changeset in a non negligible
way, but "reshape" sounds like something that may be used more
often than "mat2cell".
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