FW: [PATCH, AArch64]: Optimize strlen
Corinna Vinschen
vinschen@redhat.com
Tue Jan 20 10:12:00 GMT 2015
On Jan 16 17:07, Wilco Dijkstra wrote:
> > Richard Earnshaw wrote:
> > On 16/01/15 16:29, Wilco Dijkstra wrote:
> > > Optimize the strlen implementation by using a page cross check and a fast check
> > > for nul bytes which reverts to separate loop when a non-ASCII char is encountered.
> > > Speedup on cortex-strings test is ~10%, long ASCII strings are processed ~60%
> > > faster, and on random tests it is ~80% better.
> > >
> > > OK for commit?
> > >
> > >
> >
> > Please can you re-send with the patch in unified diff format. ie diff -u.
> >
> > You also need a ChangeLog entry.
>
> Cvs diff -u result attached. Changelog:
>
> 2015-01-16 Wilco Dijkstra wdijkstr@arm.com
>
> * libc/machine/aarch64/strlen.S (strlen): Improve performance.
Patch applied.
Thanks,
Corinna
--
Corinna Vinschen
Cygwin Maintainer
Red Hat
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