#13400: Use strong caches diligently
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Reporter: nbruin | Owner: robertwb
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: coercion | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Changes (by SimonKing):
* cc: nthiery (added)
Comment:
I just notice: Apparently in your example, the is_subcategory function is
not the usual one (sage/categories/category.py), but the one in
sage/categories/covariant_functorial_construction.py.
It says
{{{
#!python
def is_subcategory(self, C):
"""
.. todo:: doctests + explain why this method is needed
"""
if C is self:
return True
return any(X.is_subcategory(C) for X in self._super_categories)
}}}
Actually I wonder why is it needed, myself.
Nicolas, is it not possible to use the default is_subcategory, by #11943?
Anyway, I think the real speed-up will not come from is_subcategory, but
from a more intelligent caching.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13400#comment:9>
Sage <http://www.sagemath.org>
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