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#SECTION0001320000000000000000A 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 : 5781.39That'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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