#11900: Serious regression caused by #9138
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Reporter: SimonKing | Owner: tbd
Type: defect | Status: needs_review
Priority: critical | Milestone: sage-4.8
Component: performance | Keywords: categories regression
Work_issues: | Upstream: N/A
Reviewer: Jeroen Demeyer | Author: Simon King
Merged: | Dependencies: #9138 #11911
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Comment(by nthiery):
Replying to [comment:93 SimonKing]:
> The purpose of this ticket is explicit: Speed. I must admit that the
code by which I obtain speed is sometimes a bit messy, specifically in
`is_subcategory`, where I introduce additional special cases in a method
that should be fairly generic.
>
> There is a follow-up ticket #11943 that is concerned with consistency of
the category graph. Question: Is it ok to keep the messy code from here
and leave cleaning of `is_subcategory` to #11943?
If that makes your life easier, I say go for it. Anyway, it's likely
that the second patch will go in very soon after, if not in the same
release.
Cheers,
Nicolas
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:94>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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