#11342: Make getattr faster on parents and elements
---------------------------+------------------------------------------------
Reporter: SimonKing | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.7.1
Component: performance | Keywords: getattr parent element
Work_issues: | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9944
---------------------------+------------------------------------------------
Changes (by hivert):
* owner: tbd =>
Comment:
Hi Simon
Some more info: According to prun most of the time is spend during the
copy in
{{{
def __mod__(self, args):
"""
"""
if hasattr(self, "_args"): # self is already bound...
self = copy(self)
self._args = args
return self
}}}
For example
{{{
1 2.828 2.828 19.882 19.882
{_home_florent__sage_temp_popcorn_rouba_net_19739_tmp_0_spyx_0.test}
999999 2.429 0.000 15.759 0.000 copy.py:65(copy)
1000000 1.088 0.000 17.054 0.000 lazy_format.py:82(__mod__)
1999999 1.067 0.000 1.067 0.000 {hasattr}
}}}
I'm pretty sure that cythonizing properly this copy should give a large
speedup. So the question is: should we try to optimize {{{LazyFormat}}} or
do
you rather have a hand tuned err-message to ensure proper backward
compatibility ?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11342#comment:7>
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