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Peter Zijlstra 9e350de37a perf_counter: Accurate period data 
We currently log hw.sample_period for PERF_SAMPLE_PERIOD, however this is
incorrect. When we adjust the period, it will only take effect the next
cycle but report it for the current cycle. So when we adjust the period
for every cycle, we're always wrong.

Solve this by keeping track of the last_period.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 02:39:02 +02:00
..
alpha alpha: unbreak percpu again 2009-05-12 14:11:35 -07:00
arm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-05-29 16:07:39 -07:00
avr32 avr32: drop unused CLEAN_FILES 2009-05-01 10:54:00 +02:00
blackfin flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
cris CRISv32: Fix typo compile error in ARTPEC-3 gpio driver. 2009-04-28 19:08:10 +02:00
frv FRV: Use __INIT macro instead of .text.init. 2009-04-27 19:46:30 -07:00
h8300 flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
ia64 [IA64] xen_domu_defconfig: fix build issues/warnings 2009-05-05 11:43:13 -07:00
m32r flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
m68k flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
m68knommu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2009-04-24 08:45:53 -07:00
microblaze microblaze: Fix kind-of-intr checking against number of interrupts 2009-05-18 14:47:42 +02:00
mips MIPS: IP32: Remove unnecessary if not even harmful volatile keywords. 2009-05-22 13:52:06 +01:00
mn10300 mn10300: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2009-04-03 09:52:04 -07:00
powerpc perf_counter: Accurate period data 2009-06-11 02:39:02 +02:00
s390 s390: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:39 -07:00
sh flat: fix data sections alignment 2009-05-29 08:40:02 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2009-06-01 08:02:31 -07:00
um uml: kill a kconfig warning 2009-04-21 13:41:50 -07:00
x86 perf_counter: Accurate period data 2009-06-11 02:39:02 +02:00
xtensa xtensa: Fix linker script to include .literal sections 2009-05-11 23:40:33 -07:00
.gitignore
Kconfig mutex: have non-spinning mutexes on s390 by default 2009-04-09 19:28:24 +02:00