android_kernel_motorola_sm6375/kernel/time
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Michal Hocko 6beea0cda8 nohz: Fix update_ts_time_stat idle accounting
update_ts_time_stat currently updates idle time even if we are in
iowait loop at the moment. The only real users of the idle counter
(via get_cpu_idle_time_us) are CPU governors and they expect to get
cumulative time for both idle and iowait times.
The value (idle_sleeptime) is also printed to userspace by print_cpu
but it prints both idle and iowait times so the idle part is misleading.

Let's clean this up and fix update_ts_time_stat to account both counters
properly and update consumers of idle to consider iowait time as well.
If we do this we might use get_cpu_{idle,iowait}_time_us from other
contexts as well and we will get expected values.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Dave Jones <davej@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Link: http://lkml.kernel.org/r/e9c909c221a8da402c4da07e4cd968c3218f8eb1.1314172057.git.mhocko@suse.cz
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-09-08 11:10:55 +02:00
..
alarmtimer.c alarmtimers: Rework RTC device selection using class interface 2011-08-10 14:55:30 -07:00
clockevents.c clockevents: Handle empty cpumask gracefully 2011-06-03 11:13:33 +02:00
clocksource.c clocksource: Make watchdog robust vs. interruption 2011-06-16 19:30:53 +02:00
jiffies.c Fix common misspellings 2011-03-31 11:26:23 -03:00
Kconfig
Makefile timers: Introduce in-kernel alarm-timer interface 2011-04-26 14:01:44 -07:00
ntp.c ntp: fix non privileged system time shifting 2011-04-04 08:31:23 -07:00
posix-clock.c posix clocks: Replace mutex with reader/writer semaphore 2011-04-18 10:39:38 +02:00
tick-broadcast.c Merge branch 'timers/urgent' into timers/core 2011-05-20 20:08:05 +02:00
tick-common.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-03-15 18:53:35 -07:00
tick-internal.h Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-03-15 18:53:35 -07:00
tick-oneshot.c
tick-sched.c nohz: Fix update_ts_time_stat idle accounting 2011-09-08 11:10:55 +02:00
timecompare.c
timeconv.c
timekeeping.c time: Fix stupid KERN_WARN compile issue 2011-07-20 15:42:55 -07:00
timer_list.c
timer_stats.c Fix common misspellings 2011-03-31 11:26:23 -03:00