Re: [Patches] [PATCH] ARM: NEON detected memcpy.

[Will Newton <will.newton@xxxxxxxxxx>]

On 3 April 2013 08:58, Shih-Yuan Lee (FourDollars) <sylee@xxxxxxxxxxxxx> wrote:
> Hi,
>
> I am working on the NEON detected memcpy.
> This is based on what Siarhei Siamashka did at 2009 [1].
>
> The idea is to use HWCAP and check NEON bit.
> If there is a NEON bit, using NEON optimized memcpy.
> If not, using the original memcpy instead.
>
> If using NEON optimized memcpy, the performance of memcpy will be
> raised up by about 50% [2].
>
> How do you think about this idea? Any comment is welcome.

Hi,

I am working on a similar project within Linaro, which is to add the
NEON/VFP capable memcpy from cortex-strings[1] to glibc. However I am
looking at enabling it at runtime via indirect functions which makes
it slightly more complex than just importing the cortex strings code,
so I don't have any patches to show you just yet.

[1] https://launchpad.net/cortex-strings
_______________________________________________
Patches mailing list
Patches@xxxxxxxxxx
http://eglibc.org/cgi-bin/mailman/listinfo/patches