Re: 70x speed-up for seq's common cases

[Pádraig Brady]

On 09/15/2012 12:24 PM, Torbjorn Granlund wrote:
> Pádraig Brady<address@hidden>  writes:
>
>    For comparison here is an add function that used to be in coreutils:
>    
> http://git.sv.gnu.org/gitweb/?p=coreutils.git;a=blob;f=src/getlimits.c;hb=a2be861b#l81
>
> Same thing, very different styles.
>
> I cannot help writing code for high performance.  Compact source code is
> low on my list.  There is only one branch in my code that will not
> predict well for typical usage (the on at cy != 0).  I suppose many
> people find your higher-level and more compact style easier to read.

Speed is the main reason for such code.
I expect we'll use your version.
My reference was mainly for myself so
I could compare speed.

thanks!
Pádraig.