Re: [RFC] lib/vsprintf.c: Even faster decimal conversion

[Rasmus Villemoes]

On Sat, Feb 21 2015, Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> wrote:

> [...] decimal conversion [...] it does indeed seem like there is
> something to be gained, especially on 64 bits.
>
> $ ./test64
> Distribution              Function         Cycles/conv  Conv/1 sec
> uniform([10, 2^64-1])     linux_put_dec          127.72         23047567
> uniform([10, 2^64-1])     rv_put_dec              60.73         45932786
>                           +/-                   -52.45%          +99.30%
[...]
> 3 + neg_binom(0.50)       linux_put_dec           16.85        159560933
> 3 + neg_binom(0.50)       rv_put_dec              12.59        204607570
>                           +/-                   -25.31%          +28.23%

I'm assuming the underwhelming response means NAK.

Rasmus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/