[PATCH v2] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.

Will Newton will.newton@linaro.org
Thu Apr 18 08:38:00 GMT 2013


On 18 April 2013 09:25, Siddhesh Poyarekar <siddhesh.poyarekar@gmail.com> wrote:
> On 18 April 2013 13:24, Will Newton <will.newton@linaro.org> wrote:
>> Thanks for the offer, I don't have any armv6 hardware to test with.
>> The easiest way to test is probably using the cortex-strings package
>> (as the patch I posted is for armv7).
>>
>> https://launchpad.net/cortex-strings
>>
>> "try-this -t memcpy" will benchmark the code I submitted, "try-glibc
>> -t memcpy" will benchmark the current glibc code.
>
> OK, I'll try to do this tonight (i.e. ~8 hours from now) since the
> board is at home and I'm not.  I assume you want 'current glibc code'
> to be master?  The distribution version is 2.17 IIRC or at worst 2.16.

The cortex-strings package has its own copy of the glibc memcpy in the
reference sub-directory. I believe "try-none" will benchmark against
the C library installed.

--
Will Newton
Toolchain Working Group, Linaro



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