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From: Simon Guo <wei.guo.simon@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Paul Mackerras <paulus@ozlabs.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	"Naveen N.  Rao" <naveen.n.rao@linux.vnet.ibm.com>,
	David Laight <David.Laight@ACULAB.COM>,
	Christophe LEROY <christophe.leroy@c-s.fr>
Subject: Re: [PATCH v2 2/3] powerpc/64: enhance memcmp() with VMX instruction for long bytes comparision
Date: Thu, 21 Sep 2017 08:54:26 +0800	[thread overview]
Message-ID: <20170921005426.GC3387@simonLocalRHEL7.x64> (raw)
In-Reply-To: <1505950480-14830-3-git-send-email-wei.guo.simon@gmail.com>

Hi,
On Thu, Sep 21, 2017 at 07:34:39AM +0800, wei.guo.simon@gmail.com wrote:
> From: Simon Guo <wei.guo.simon@gmail.com>
> 
> This patch add VMX primitives to do memcmp() in case the compare size
> exceeds 4K bytes.
> 
> Test result with following test program(replace the "^>" with ""):
> ------
I missed the exit_vmx_ops() part and need to rework on v3.

Thanks,
- Simon

  reply	other threads:[~2017-09-22  6:58 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-20 23:34 [PATCH v2 0/3] powerpc/64: memcmp() optimization wei.guo.simon
2017-09-20 23:34 ` [PATCH v2 1/3] powerpc/64: Align bytes before fall back to .Lshort in powerpc64 memcmp() wei.guo.simon
2017-09-20 23:34 ` [PATCH v2 2/3] powerpc/64: enhance memcmp() with VMX instruction for long bytes comparision wei.guo.simon
2017-09-21  0:54   ` Simon Guo [this message]
2017-09-22 14:06   ` Cyril Bur
2017-09-23 21:18     ` Simon Guo
2017-09-25 23:59       ` Cyril Bur
2017-09-26  5:34         ` Michael Ellerman
2017-09-26 11:26           ` Segher Boessenkool
2017-09-27  3:38             ` Michael Ellerman
2017-09-27  9:27               ` Segher Boessenkool
2017-09-27  9:43                 ` David Laight
2017-09-27 18:33                   ` Simon Guo
2017-09-28  9:24                     ` David Laight
2017-09-27 16:22               ` Simon Guo
2017-09-20 23:34 ` [PATCH v2 3/3] powerpc:selftest update memcmp_64 selftest for VMX implementation wei.guo.simon
2017-09-25  9:30   ` David Laight
2017-09-24  6:19     ` Simon Guo

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