#11332: 65x penalty in performance for using float instead of RealNumber
---------------------------+------------------------------------------------
Reporter: pang | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.7.1
Component: performance | Keywords: float, RealNumber
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by pang):
It's a bit worse:
{{{
x=random()
timeit('exp(x)')
}}}
125 loops, best of 3: 7.88 ms per loop
while
{{{
x=random()*1.0
timeit('exp(x)')
}}}
625 loops, best of 3: 48.3 µs per loop
so the ratio is rather around 150x.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11332#comment:1>
Sage <http://www.sagemath.org>
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