Messages in this thread | | | Subject | Re: [RFC] lib/vsprintf.c: Even faster decimal conversion | From | Joe Perches <> | Date | Thu, 05 Mar 2015 08:03:33 -0800 |
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On Thu, 2015-03-05 at 16:22 +0100, Rasmus Villemoes wrote: > On Sat, Feb 21 2015, Rasmus Villemoes <linux@rasmusvillemoes.dk> 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.
Dunno why you assume that, sometimes it just takes awhile for people to look at non-critical, infrequent optimization changes like this.
Seems sensible enough to me though.
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