tree 8d7e049742e87666bf3089fe46e04828b6417fd7
parent 7f6c5b046978d68e69bdc73433ead41612a2a1c9
author Andi Kleen <ak@suse.de> 1137015924 +0100
committer Linus Torvalds <torvalds@g5.osdl.org> 1137035098 -0800

[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>