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From: "Joseph S. Myers" <>
To: Will Newton <>
Cc: <>, <>
Subject: Re: [PATCH v4] ARM: Improve armv7 memcpy performance.
Date: Mon, 16 Sep 2013 15:25:00 -0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Mon, 16 Sep 2013, Will Newton wrote:

> Only enter the aligned copy loop with buffers that can be 8-byte
> aligned. This improves performance slightly on Cortex-A9 and
> Cortex-A15 cores for large copies with buffers that are 4-byte
> aligned but not 8-byte aligned.
> ports/ChangeLog.arm:
> 2013-08-30  Will Newton  <>
> 	* sysdeps/arm/armv7/multiarch/memcpy_impl.S: Tighten check
> 	on entry to aligned copy loop to improve performance.


Joseph S. Myers

      reply	other threads:[~2013-09-16 15:25 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-16  8:37 Will Newton
2013-09-16 15:25 ` Joseph S. Myers [this message]

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