#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: Rename `TripleDictById` into `TripleDict`. Improve timing and
update documentation | Upstream: N/A
Reviewer:
| Author: Simon King
Merged:
| Dependencies: #9138, #11900
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Changes (by SimonKing):
* work_issues: Improve timing and provid documentation => Rename
`TripleDictById` into `TripleDict`.
Improve timing and update documentation
Comment:
OMG!!
I totally misinterpreted how the keys were compared in the original
version of `TripleDict`. When I saw the line `if PyList_GET_ITEM(bucket,
i) == <PyObject*>k1` in the old code, I thought that this means to compare
the objects by equality.
But now I learnt that this is comparison by identity. Arrgh! The behaviour
that I provide with `TripleDictById` was there all along!
Conclusion: I should erase my version of `TripleDict` (which really
compares by equality, not identity), rename my `TripleDictById` into
`TripleDict`, and then finally try to get things up to speed.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:124>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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