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[Octave-bug-tracker] [bug #61300] primes() is 4 times slower for integer


From: Michael Leitner
Subject: [Octave-bug-tracker] [bug #61300] primes() is 4 times slower for integer types than for double, patch attached
Date: Wed, 6 Oct 2021 12:07:03 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0

Follow-up Comment #2, bug #61300 (project octave):

Wasn't there some recent work by jwe on integer ranges? Because without the
patch, if you call primes with an integer class input, this ends up as the
upper end of a range that is used for indexing, which perhaps is slow. But why
it would be so very slow I do not see.

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