[PATCH] x86_64: On Intel CPUs don't do an additional CPU sync before RDTSC
authorAndi Kleen <ak@suse.de>
Wed, 11 Jan 2006 21:45:24 +0000 (22:45 +0100)
committerLinus Torvalds <torvalds@g5.osdl.org>
Thu, 12 Jan 2006 03:04:58 +0000 (19:04 -0800)
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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