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Re: [PATCHv2] ARM: NEON optimized implementation of memcpy.
- From: Holger Freyther <zecke at selfish dot org>
- To: libc-ports at sources dot redhat dot com
- Date: Sun, 4 Oct 2009 05:34:43 +0000 (UTC)
- Subject: Re: [PATCHv2] ARM: NEON optimized implementation of memcpy.
- References: <200907051821.04030.siarhei.siamashka@nokia.com> <Pine.LNX.4.64.0907141636320.6532@digraph.polyomino.org.uk>
Joseph S. Myers <joseph <at> codesourcery.com> writes:
>
> We can't consider this patch while there isn't a copyright assignment or
> disclaimer on file at the FSF that covers it.
>
> We also have a NEON memcpy at CodeSourcery (and performance improvements
> to non-NEON memcpy), as well as versions of some other string functions,
> adapted to glibc, that ARM recently contributed to newlib, but those are
> also waiting on copyright assignments from ARM. I haven't compared the
> performance of the two implementations.
Hello,
is there any update on this? I have a workload where memcpy is showing
up as number one in my (o)profile and I would be interested in a better
performing armv5te and neon implementation.
Is there any hope to get a better version into glibc, can I help with it or
should I use one of the custom memcpy (netbsd, bionic, neon optimized)
implementations in my code?
kind regards
holger