From: "Carlos O'Donell" <carlos@redhat.com>
To: Will Newton <will.newton@linaro.org>
Cc: libc-ports@sourceware.org, Patch Tracking <patches@linaro.org>
Subject: Re: [PATCH] sysdeps/arm/armv7/multiarch/memcpy_impl.S: Improve performance.
Date: Fri, 30 Aug 2013 17:14:00 -0000 [thread overview]
Message-ID: <5220D30B.9080306@redhat.com> (raw)
In-Reply-To: <CANu=DmiBHoymFKTvaW_VsdhWZEYwkfViz1tTeRgj7H80f0FntA@mail.gmail.com>
On 08/27/2013 03:46 AM, Will Newton wrote:
> On 12 August 2013 08:55, Will Newton <will.newton@linaro.org> wrote:
>>
>> A small change to the entry to the aligned copy loop improves
>> performance slightly on A9 and A15 cores for certain copies.
>>
>> ports/ChangeLog.arm:
>>
>> 2013-08-07 Will Newton <will.newton@linaro.org>
>>
>> * sysdeps/arm/armv7/multiarch/memcpy_impl.S: Tighten check
>> on entry to aligned copy loop for improved performance.
>> ---
>> ports/sysdeps/arm/armv7/multiarch/memcpy_impl.S | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> Ping?
How did you test the performance?
glibc has a performance microbenchmark, did you use that?
Cheers,
Carlos.
next prev parent reply other threads:[~2013-08-30 17:14 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-12 7:55 Will Newton
2013-08-27 7:46 ` Will Newton
2013-08-30 17:14 ` Carlos O'Donell [this message]
2013-08-30 18:48 ` Will Newton
2013-08-30 19:26 ` Carlos O'Donell
2013-09-02 14:18 ` Will Newton
2013-09-03 16:14 ` Carlos O'Donell
[not found] ` <CANu=DmhA9QvSe6RS72Db2P=yyjC72fsE8d4QZKHEcNiwqxNMvw@mail.gmail.com>
2013-09-02 14:18 ` benchmark improvements (Was: Re: [PATCH] sysdeps/arm/armv7/multiarch/memcpy_impl.S: Improve performance.) Siddhesh Poyarekar
2013-09-03 13:46 ` Will Newton
2013-09-03 17:48 ` Ondřej Bílka
2013-09-02 19:57 ` [PATCH] sysdeps/arm/armv7/multiarch/memcpy_impl.S: Improve performance Ondřej Bílka
2013-09-03 16:18 ` Carlos O'Donell
2013-09-03 17:37 ` Ondřej Bílka
2013-09-03 17:52 ` Carlos O'Donell
2013-09-03 18:57 ` Ondřej Bílka
2013-09-03 19:15 ` Carlos O'Donell
2013-09-04 7:27 ` Siddhesh Poyarekar
2013-09-04 11:03 ` Ondřej Bílka
2013-09-04 11:43 ` Siddhesh Poyarekar
2013-09-04 17:37 ` Ryan S. Arnold
2013-09-05 8:04 ` Ondřej Bílka
2013-09-04 15:30 ` Carlos O'Donell
2013-09-04 17:35 ` Ryan S. Arnold
2013-09-05 11:07 ` Ondřej Bílka
2013-09-05 11:54 ` Joseph S. Myers
2013-09-03 19:34 ` Ryan S. Arnold
2013-09-07 11:55 ` Ondřej Bílka
2013-09-03 19:31 ` Ryan S. Arnold
2013-09-03 19:54 ` Carlos O'Donell
2013-09-03 20:56 ` Ryan S. Arnold
2013-09-03 23:29 ` Ondřej Bílka
2013-09-03 23:31 ` Carlos O'Donell
2013-09-03 22:27 ` Ondřej Bílka
2013-08-29 23:58 ` Joseph S. Myers
2013-08-30 14:56 ` Will Newton
2013-08-30 15:18 ` Joseph S. Myers
2013-08-30 18:46 ` Will Newton
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