[pypy-dev] Bytecode counting patch

[Eric van Riet Paap]

Hi Ben,

It's nice to know what opcodes are popular! However, sorting them in  
whatever order within a switch will likely not make a difference.
This switch will be converted to a jumptable, so the compiler will  
order the cases again.

cheers
Eric


On Aug 7, 2006, at 4:35 PM, Ben.Young at risk.sungard.com wrote:

> Hi PyPys!
>
> Here's a patch that counts the number of times the different  
> bytecodes are
> used. I haven't tried doing translation yet as I can't use the work
> machine cycles, but it can't be far off. I've put the counts on the  
> object
> space as this is accessable from most places.
>
> I've also implemented something that should resort the opcodes in the
> switch statement of the bytecode dispatcher according to the  
> statistics I
> found. This may have a slight speed improvement.
>
>
>
> Cheers,
> Ben
> <diff.txt>
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