Michael Cree 65d920646a alpha: add performance monitor interrupt counter ... The following patches implement hardware performance events for the Alpha EV67 and later CPUs. I have had this running on a Compaq XP1000 (EV67, single CPU) for a few days now. Pretty cool -- discovered that the glibc exp2() library routine uses on average 985 cycles to execute 777 CPU instructions whereas Compaq's CPML library version of exp2() uses on average 32 cycles to execute 47 CPU instructions to achieve the same thing! This patch: Add performance monitor interrupt counternd and export the count to user space via /proc/interrupts. Signed-off-by: Michael Cree <mcree@orcon.net.nz> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jay Estabrook <jay.estabrook@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-08-09 20:45:03 -07:00
..
boot	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
include/asm	alpha: add performance monitor interrupt counter	2010-08-09 20:45:03 -07:00
kernel	alpha: add performance monitor interrupt counter	2010-08-09 20:45:03 -07:00
lib	remove __attribute_used__	2008-01-28 23:21:18 +01:00
math-emu	Revert "endian: #define __BYTE_ORDER"	2010-05-26 08:30:15 -07:00
mm	alpha: invoke oom-killer from page fault	2010-05-26 00:40:28 +02:00
oprofile	oprofile: more whitespace fixes	2008-10-15 20:55:51 +02:00
defconfig	alpha/parisc: remove config variable DEBUG_RWLOCK	2008-02-06 10:41:03 -08:00
Kconfig	time: Kill off CONFIG_GENERIC_TIME	2010-07-27 12:40:54 +02:00
Kconfig.debug	alpha/parisc: remove config variable DEBUG_RWLOCK	2008-02-06 10:41:03 -08:00
Makefile	alpha: link failure fix	2008-06-20 16:46:10 -07:00