Date: Wed, 11 Nov 2009 08:18:32 +0100
From: Ingo Molnar <mingo@elte.hu>
To: "Ma, Ling" <ling.ma@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
       Thomas Gleixner <tglx@linutronix.de>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH RFC] [X86] performance improvement for memcpy_64.S by
 fast string.
Message-ID: <20091111071832.GA3156@elte.hu>
References: <1257500482-16182-1-git-send-email-ling.ma@intel.com>
 <4AF457E0.4040107@zytor.com>
 <4AF4784C.5090800@zytor.com>
 <8FED46E8A9CA574792FC7AACAC38FE7714FCF772C9@PDSMSX501.ccr.corp.intel.com>
 <4AF7C66C.6000009@zytor.com>
 <20091109080830.GI453@elte.hu>
 <8FED46E8A9CA574792FC7AACAC38FE7714FE830398@PDSMSX501.ccr.corp.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <8FED46E8A9CA574792FC7AACAC38FE7714FE830398@PDSMSX501.ccr.corp.intel.com>
User-Agent: Mutt/1.5.20 (2009-08-17)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 795
Lines: 23


* Ma, Ling <ling.ma@intel.com> wrote:

> Hi All
> Please use the memcpy.c(cc -o memcpy memcpy.c -O2) to test more cases,
> if you have interest. In this program we did simple modification
> on memcpy_new function.

FYI:

earth4:~/s> cc -o memcpy memcpy.c -O2
memcpy.c: In function 'do_one_throughput':
memcpy.c:45: error: impossible register constraint in 'asm'
memcpy.c:53: error: impossible register constraint in 'asm'
memcpy.c:47: error: impossible register constraint in 'asm'
memcpy.c:53: error: impossible register constraint in 'asm'

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/