String performance regression from python 3.2 to 3.3

Roy Smith roy at panix.com
Sat Mar 16 23:10:01 CET 2013


In article <HuKdnTBUKc2AcdnMnZ2dnUVZ_vqdnZ2d at westnet.com.au>,
 Neil Hodgson <nhodgson at iinet.net.au> wrote:
 
>      Low-level string manipulation often deals with blocks larger than 
> an individual character for speed. Generally 32 or 64-bits at a time 
> using the CPU or 128 or 256 using the vector unit. Then there may be 
> entry/exit code to handle initial alignment to a block boundary and 
> dealing with a smaller than block-size tail.

Duff's Device!



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