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Venki Pallipadi 6378ddb592 time: track accurate idle time with tick_sched.idle_sleeptime ... Current idle time in kstat is based on jiffies and is coarse grained. tick_sched.idle_sleeptime is making some attempt to keep track of idle time in a fine grained manner. But, it is not handling the time spent in interrupts fully. Make tick_sched.idle_sleeptime accurate with respect to time spent on handling interrupts and also add tick_sched.idle_lastupdate, which keeps track of last time when idle_sleeptime was updated. This statistics will be crucial for cpufreq-ondemand governor, which can shed some conservative gaurd band that is uses today while setting the frequency. The ondemand changes that uses the exact idle time is coming soon. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		17 years ago
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Kconfig	…
Makefile	…
clockevents.c	…
clocksource.c	…
jiffies.c	…
ntp.c	…
tick-broadcast.c	…
tick-common.c	…
tick-internal.h	…
tick-oneshot.c	…
tick-sched.c	time: track accurate idle time with tick_sched.idle_sleeptime	17 years ago
timekeeping.c	…
timer_list.c	…
timer_stats.c	…