#715: Parents probably not reclaimed due to too much caching
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Reporter: robertwb | Owner:
somebody
Type: defect | Status:
needs_work
Priority: major | Milestone:
sage-4.8
Component: coercion | Keywords: weak
cache coercion
Work_issues: Improve timing and provid documentation | Upstream: N/A
Reviewer: | Author: Simon
King
Merged: | Dependencies:
#9138, #11900
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Changes (by SimonKing):
* work_issues: Get some timings => Improve timing and provid
documentation
Comment:
I have updated the patch. Instead of storing the original key and using
`Py_DECREF`, I store its address instead (for `TripleDictId`) resp. use
another weak reference.
With the new patch, `sage -t "devel/sage-
main/sage/modules/free_module.py"` works and is about as fast as in
vanilla sage.
Moreover, the memleak is fixed.
However, the patch isn't fully tested or documented yet. And still
`TripleDictById` is only half as fast as the old `TripleDict` (but recall:
The old is buggy and uses strong references). So, it isn't ready for
review, but of course I'd appreciate preliminary comments.
Apply trac715_tripledict_combined.patch
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:123>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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