#11900: Serious regression caused by #9138
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Reporter: SimonKing | Owner:
tbd
Type: defect | Status:
needs_review
Priority: critical | Milestone:
sage-5.0
Component: performance | Keywords:
categories regression
Work_issues: Update reviewer patch | Upstream:
N/A
Reviewer: Jeroen Demeyer, Nicolas M. Thiéry, Simon King | Author:
Simon King
Merged: | Dependencies:
#9138 #11911 #9562
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Changes (by SimonKing):
* status: needs_work => needs_review
Comment:
The following timings are on a different machine than the timings above,
but I think they show that the new hash method is pretty good:
{{{
sage: timeit("Rings()",number=10000)
10000 loops, best of 3: 981 ns per loop
sage: R = Rings()
sage: timeit("hash(R)",number=10000)
10000 loops, best of 3: 107 ns per loop
}}}
The tests at least in sage/categories pass, so, I put it back to "needs
review"
Apply trac11900_category_speedup_combined.patch
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:214>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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