#4100: [with patch, needs review] comparison with None extraordinarily slow
------------------------------+---------------------------------------------
Reporter: robertwb | Owner: somebody
Type: defect | Status: new
Priority: major | Milestone: sage-3.1.3
Component: basic arithmetic | Resolution:
Keywords: |
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Changes (by robertwb):
* summary: comparison with None extraordinarily slow => [with patch,
needs review] comparison with None
extraordinarily slow
Comment:
Before
{{{
sage: timeit("1 == None")
625 loops, best of 3: 625 µs per loop
}}}
After
{{{
sage: timeit("1 == None")
625 loops, best of 3: 530 ns per loop
}}}
This is at least close to
{{{
sage: timeit("1 is None")
625 loops, best of 3: 330 ns per loop
}}}
but people who don't know about the {{{is}}} operator shouldn't be hit
that bad...
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4100#comment:1>
SAGE <http://sagemath.org/>
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