#11900: Serious regression caused by #9138
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Reporter: SimonKing | Owner: tbd
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.7.2
Component: performance | Keywords: categories regression
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by SimonKing):
When avoiding initialisation of coercion from the base ring into a matrix
space,(in addition to caching hom_category and join), I get
{{{
sage: E = J0(46).endomorphism_ring()
sage: %time g = E.gens()
CPU times: user 6.83 s, sys: 0.22 s, total: 7.05 s
Wall time: 7.07 s
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:3>
Sage <http://www.sagemath.org>
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