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

From: Will Newton <will dot newton at linaro dot org>
To: Måns Rullgård <mans at mansr dot com>
Cc: libc-ports at sourceware dot org, patches at linaro dot org
Date: Mon, 15 Apr 2013 11:38:49 +0100
Subject: Re: [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
References: <516BCEE5 dot 9070809 at linaro dot org> <yw1x8v4k6rcc dot fsf at unicorn dot mansr dot com>

On 15 April 2013 11:06, Måns Rullgård <mans@mansr.com> wrote:

Hi Måns,

>> Add a high performance memcpy routine optimized for Cortex-A15 with
>> variants for use in the presence of NEON and VFP hardware, selected
>> at runtime using indirect function support.
>
> How does this perform on Cortex-A9?

The code is also faster on A9 although the gains are not quite as
pronounced. A set of numbers is attached (they linewrap pretty
horribly inline).

--
Will Newton
Toolchain Working Group, Linaro

Attachment: memcpy_benchmark_a9.txt
Description: Text document

Follow-Ups:
- Re: [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
  - From: Måns Rullgård
- Re: [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
  - From: OndÅej BÃlka

References:
- [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
  - From: Will Newton
- Re: [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
  - From: Måns Rullgård

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