#715: Parents probably not reclaimed due to too much caching
--------------------------------+-------------------------------------------
Reporter: robertwb | Owner: somebody
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: coercion | Keywords: weak cache coercion
Work_issues: avoid regression | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9138, #11900
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Changes (by SimonKing):
* work_issues: => avoid regression
Comment:
The flaky behaviour probably means that sometimes something gets garbage
collected when it shouldn't.
But why do you have the patch from #11521 applied?
Note that with sage-5.0.prealpha0 + #11780 + the new patch from here, I
get two tests with errors, namely
{{{
sage -t --long -force_lib
devel/sage/sage/structure/coerce_dict.pyx # 1 doctests failed
sage -t --long -force_lib devel/sage/sage/structure/coerce.pyx #
5 doctests failed
}}}
However, the tests took rather long in total: 12100 seconds with the new
patch versus 4569 seconds unpatched.
I think the regression is not acceptable.
Well, perhaps you are right and we should experiment with weak references
on domain and codomain.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:72>
Sage <http://www.sagemath.org>
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