PATCH: Speed up direct string concatenation by 20+%!

[Fredrik Lundh]

Larry Hastings wrote:

>> Nice idea, though. You might also see how it does on tasks like
>>
>> s = ""
>> for i in range(100000):
>>     s += "a"
> 
> Sure.  Here are the results, but with range (10000000):

ten million?  what hardware are you running this on?

> 	Python 2.5 release: 31.0s
> 	Python 2.5 locally built: 30.7s
> 	Python 2.5 concat: 4.4s
>         % Improvement: *697%*!
> 
> Woah!  Thanks for suggesting a benchmark where it really shines :)

what's in "s" when that loop is done?

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