From: "Måns Rullgård" <mans@mansr.com>
To: Will Newton <will.newton@linaro.org>
Cc: "Måns Rullgård" <mans@mansr.com>,
libc-ports@sourceware.org, patches@linaro.org
Subject: Re: [PATCH] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
Date: Mon, 15 Apr 2013 10:46:00 -0000 [thread overview]
Message-ID: <yw1x4nf86pi8.fsf@unicorn.mansr.com> (raw)
In-Reply-To: <CANu=DmjJUZ319+7_M8cyxMga_rYxbGb_QSs87Q29JBdkKX_97g@mail.gmail.com> (Will Newton's message of "Mon, 15 Apr 2013 11:38:49 +0100")
Will Newton <will.newton@linaro.org> writes:
> 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.
That should be expected. As long as it's not slower, it's all well.
Out of interest, did you compare this memcpy to any other NEON versions
floating about, such as the one in bionic?
--
Måns Rullgård
mans@mansr.com
next prev parent reply other threads:[~2013-04-15 10:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-15 9:57 Will Newton
2013-04-15 10:01 ` Will Newton
2013-04-15 10:23 ` Ondřej Bílka
2013-04-15 10:59 ` Will Newton
2013-04-15 13:38 ` Ondřej Bílka
2013-04-15 10:06 ` Måns Rullgård
2013-04-15 10:38 ` Will Newton
2013-04-15 10:46 ` Måns Rullgård [this message]
2013-04-15 10:49 ` Will Newton
2013-04-18 9:39 ` Ondřej Bílka
2013-04-18 9:47 ` Will Newton
2013-04-18 11:56 ` Ondřej Bílka
2013-04-15 17:14 ` Richard Henderson
2013-04-15 17:44 ` Will Newton
2013-04-15 18:22 ` Richard Henderson
2013-04-15 18:31 ` Will Newton
2013-04-15 18:37 ` Richard Henderson
2013-04-15 18:48 ` Will Newton
2013-04-15 19:12 ` Richard Henderson
2013-04-15 19:47 ` Will Newton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=yw1x4nf86pi8.fsf@unicorn.mansr.com \
--to=mans@mansr.com \
--cc=libc-ports@sourceware.org \
--cc=patches@linaro.org \
--cc=will.newton@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).