#13400: Use strong caches diligently
-------------------------------+--------------------------------------------
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:
-------------------------------+--------------------------------------------
Comment (by SimonKing):
Here is the effect of cythonising the subcategory hook:
{{{
# This is the cython version of the default _subcategory_hook_:
sage: cython("""
....: include "../ext/python_type.pxi"
....: def subcat_hook(self,c):
....: return PyType_IsSubtype(c.parent_class, self.parent_class)
....: """)
sage: C = Algebras(ZZ)
sage: R = Rings()
sage: C._subcategory_hook_(R)
False
sage: R._subcategory_hook_(C)
True
sage: subcat_hook(C,R)
False
sage: subcat_hook(R,C)
True
sage: %timeit C._subcategory_hook_(R)
625 loops, best of 3: 1.94 µs per loop
sage: %timeit R._subcategory_hook_(C)
625 loops, best of 3: 2.09 µs per loop
sage: %timeit subcat_hook(C,R)
625 loops, best of 3: 846 ns per loop
sage: %timeit subcat_hook(R,C)
625 loops, best of 3: 816 ns per loop
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13400#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
