On Mar 25, 2011, at 5:51 PM, Marcus Denker wrote:
>
> On Mar 25, 2011, at 5:46 PM, Camillo Bruni wrote:
>>>
>>
>> Arguing with absolute values is a bit dangerous:
>>
>> But it makes
>> 13ms / 17ms * 100% = 76% => 25% speed improvement! in COG
>> 50ms / 60ms * 100% = 83% => 17% faster
So for Cog, you get this counter-intuitive result is because Cog
executes the overhead loop faster in combination with not jitting
what you wanted to test.
As the doit is *not* Jited, it executes as fast as in the intepreter case.
You see a higher percentage just because the base overhead loop
is executed faster and the thing you test gets a larger share of the
runtime.
Marcus
--
Marcus Denker -- http://www.marcusdenker.de
INRIA Lille -- Nord Europe. Team RMoD.
