Re: [boost] sorting floats by casting to integer

Subject: Re: [boost] sorting floats by casting to integer
From: Edouard A. (edouard_at_[hidden])
Date: 2009-07-04 04:52:53

>I've been investigating why float_sort is so much faster than std::sort on
>x86 processors, and why sorting integers is so much faster than float_sort,
>and came to the conclusion that floating-point comparisons are extremely
>slow on x86. 

Hey Steven,

Is it true even with SSE3 optimizations turned on and data aligned to
16-bytes boundaries?

Which compiler were you using?

Regards.

-- 
Edouard
 
 
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