From: Andi Kleen <ak@suse.de>
Date: Wed, 11 Jan 2006 21:45:24 +0000 (+0100)
Subject: [PATCH] x86_64: On Intel CPUs don't do an additional CPU sync before RDTSC
X-Git-Tag: v2.6.16-rc1~320
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c818a18146997d1356a4840b0c01f1168c16c8a4;p=pandora-kernel.git

[PATCH] x86_64: On Intel CPUs don't do an additional CPU sync before RDTSC

RDTSC serialization using cpuid is not needed for Intel platforms.
This increases gettimeofday performance.

Cc: vojtech@suse.cz
Cc: rohit.seth@intel.com

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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