#4740: [with patch, needs work] avoid creating unneeded homsets when coercing
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Reporter: mabshoff | Owner: robertwb
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.11
Component: memleak | Resolution:
Keywords: | Merged in:
Authors: Mike Hansen | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Dependencies:
Stopgaps: |
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Changes (by {'newvalue': u'Mike Hansen', 'oldvalue': ''}):
* status: needs_work => needs_review
* cc: SimonKing (added)
* author: => Mike Hansen
Comment:
I think homesets are still created each time. We could try the following
patch which does fix the issue. The timings also improved:
Before:
{{{
sage: %timeit t = F.coerce(F(234234))
10000 loops, best of 3: 197 us per loop
}}}
After:
{{{
sage: %timeit t = F.coerce(F(234234))
10000 loops, best of 3: 23.4 us per loop
}}}
Simon -- see any issues here?
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Ticket URL: <http://trac.sagemath.org/ticket/4740#comment:9>
Sage <http://www.sagemath.org>
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