Re: [PATCH] x86: generic versions of find_first_(zero_)bit, converti386

[Stephen Hemminger]

On Mon, 31 Mar 2008 19:15:06 +0200
Alexander van Heukelum <heukelum@xxxxxxxxxxxxx> wrote:

> Generic versions of __find_first_bit and __find_first_zero_bit
> are introduced as simplified versions of __find_next_bit and
> __find_next_zero_bit. Their compilation and use are guarded by
> a new config variable GENERIC_FIND_FIRST_BIT.
> 
> The generic versions of find_first_bit and find_first_zero_bit
> are implemented in terms of the newly introduced __find_first_bit
> and __find_first_zero_bit.
> 
> This patch also converts i386 to the generic functions. The text
> size shrinks slightly due to uninlining of the find_*_bit functions.
> 
>    text    data     bss     dec     hex filename
> 4764939  480324  622592 5867855  59894f vmlinux  (i386 defconfig before)
> 4764645  480324  622592 5867561  598829 vmlinux  (i386 defconfig after)
> 
> Signed-off-by: Alexander van Heukelum <heukelum@xxxxxxxxxxx>
> 

Size isn't everything, what is the performance difference?
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