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Open Source and information security mailing list archives
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Date: Wed, 11 Nov 2009 08:18:32 +0100 From: Ingo Molnar <mingo@...e.hu> To: "Ma, Ling" <ling.ma@...el.com> Cc: "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: [PATCH RFC] [X86] performance improvement for memcpy_64.S by fast string. * Ma, Ling <ling.ma@...el.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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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