Performance Tracker project update
Ivan Voras
ivoras at freebsd.org
Fri Feb 8 22:38:33 UTC 2008
Chuck Swiger wrote:
> On Feb 8, 2008, at 12:43 PM, Ivan Voras wrote:
>>> Historically, the Python optimizer wasn't capable of doing much,
>>> true, but the more recent versions of the optimizer can actually do
>>> some peephole optimizations like algorithmic simplification and
>>> constant folding:
>>> http://docs.python.org/whatsnew/other-lang.html#SECTION0001320000000000000000
>>>
>>
>> A quick test with the built-in pystone mini-benchmark (taken out of
>> the standard library so the optimization can be varied) yields [*]:
>>
>> python without -O : 5802.36
>> python with -O : 5781.39
>
> That's ~ 0.4% difference, or low enough to be lost in the noise, agreed.
Ah sorry, fatal omission: that's loops per second, and it's consistent
across several runs of with and without -O. I.e. I'm getting _lower_
performance with -O :)
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