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 >
2008-01-30 13:30:04 +01:00
2008-01-28 14:54:13 -08:00
2008-01-27 18:14:49 +01:00
2008-01-30 02:06:07 -05:00
2007-12-12 20:01:01 +01:00
2008-01-28 15:02:38 -08:00
2008-01-28 14:58:49 -08:00
2008-01-28 15:02:27 -08:00
2008-01-28 14:58:43 -08:00
2008-01-28 15:09:52 -08:00
2008-01-30 02:06:09 -05:00
2007-12-26 19:36:35 -08:00
2008-01-23 21:26:15 -05:00
2007-12-17 19:28:16 -08:00
2008-01-23 05:24:15 -05:00
2008-01-28 15:00:14 -08:00
2008-01-28 15:00:12 -08:00
2008-01-23 11:29:17 -06:00
2008-01-29 21:55:14 +01:00
2008-01-29 21:55:15 +01:00
2008-01-28 23:58:26 -05:00
2008-01-28 14:54:10 -08:00
2008-01-23 05:24:14 -05:00
2007-12-02 20:04:49 +01:00
2008-01-30 13:30:02 +01:00
2008-01-28 23:21:18 +01:00
2008-01-28 23:21:18 +01:00
2008-01-28 23:21:18 +01:00
2008-01-28 15:00:40 -08:00
2008-01-25 21:08:02 +01:00
2008-01-06 12:39:42 -08:00
2008-01-11 08:17:01 +11:00
2008-01-28 14:57:51 -08:00
2008-01-25 21:08:02 +01:00
2007-12-20 17:32:12 +00:00
2008-01-24 21:04:46 -08:00
2008-01-25 14:46:04 -08:00
2008-01-25 14:46:04 -08:00
2008-01-24 20:40:05 -08:00
2008-01-23 21:23:13 -05:00
2007-12-18 08:29:28 +01:00
2008-01-28 23:21:18 +01:00
2007-11-29 09:24:53 -08:00
2008-01-28 23:58:27 -05:00
2008-01-29 00:19:52 -05:00
2008-01-29 00:19:52 -05:00
2008-01-29 00:19:52 -05:00
2008-01-28 23:58:27 -05:00
2007-11-29 09:24:54 -08:00
2008-01-25 21:08:34 +01:00
2008-01-24 20:40:36 -08:00
2008-01-25 21:08:33 +01:00
2008-01-25 22:17:14 +01:00
2008-01-28 14:51:22 +01:00
2008-01-30 13:30:03 +01:00
2008-01-25 21:08:31 +01:00
2007-12-17 19:28:17 -08:00
2008-01-11 08:16:16 +11:00
2008-01-27 18:14:50 +01:00
2008-01-27 18:14:52 +01:00
2008-01-26 20:13:12 +01:00
2008-01-28 15:10:45 -08:00
2008-01-28 14:53:58 -08:00
2008-01-28 14:54:09 -08:00
2007-12-07 15:00:32 -05:00
2008-01-28 15:08:27 -08:00
2008-01-28 15:07:58 -08:00
2008-01-28 14:56:28 -08:00
2008-01-28 15:07:57 -08:00
2008-01-28 14:55:09 -08:00
2008-01-28 15:08:32 -08:00
2008-01-28 14:55:09 -08:00
2008-01-28 15:08:44 -08:00
2007-12-05 05:37:32 -08:00
2008-01-28 15:11:04 -08:00
2008-01-28 10:50:29 +01:00
2008-01-28 23:21:19 +01:00
2008-01-25 21:08:23 +01:00
2008-01-28 10:50:33 +01:00
2008-01-28 10:50:29 +01:00
2007-12-18 18:05:58 +01:00
2008-01-28 23:58:27 -05:00
2007-12-05 09:21:20 -08:00
2008-01-25 21:08:34 +01:00
2008-01-29 22:54:01 +11:00
2007-11-29 09:24:52 -08:00
2008-01-25 21:08:28 +01:00
2008-01-08 16:10:35 -08:00
2008-01-24 21:27:06 -08:00
2008-01-24 20:40:05 -08:00
2008-01-25 21:08:34 +01:00
2007-12-07 09:06:53 +00:00
2008-01-23 05:24:16 -05:00
2008-01-25 11:29:49 +11:00
2008-01-29 22:46:14 +11:00
2008-01-28 23:21:18 +01:00
2008-01-26 15:04:01 +00:00
2008-01-26 15:03:59 +00:00
2008-01-28 14:56:29 -08:00
2008-01-08 23:30:07 -08:00
2007-12-14 13:54:39 -08:00
2008-01-28 14:53:55 -08:00
2008-01-28 14:53:55 -08:00
2008-01-28 15:02:22 -08:00
2008-01-28 15:08:07 -08:00
2008-01-28 14:54:18 -08:00
2008-01-30 02:06:07 -05:00
2008-01-30 02:06:11 -05:00
2008-01-30 02:05:24 -05:00
2008-01-30 02:06:08 -05:00
2008-01-28 14:59:52 -08:00
2008-01-25 21:08:02 +01:00
2008-01-24 20:40:14 -08:00
2008-01-28 15:09:35 -08:00
2008-01-28 23:21:18 +01:00
2008-01-28 15:00:35 -08:00
2007-12-04 15:06:33 -05:00
2008-01-28 15:11:21 -08:00
2008-01-24 20:40:06 -08:00
2008-01-24 20:40:43 -08:00
2008-01-11 12:26:47 -05:00
2008-01-11 12:26:47 -05:00
2007-12-27 23:55:13 -05:00
2008-01-28 15:01:36 -08:00
2008-01-02 13:13:27 -08:00
2007-12-23 12:54:36 -08:00
2008-01-25 21:08:24 +01:00
2008-01-25 21:08:24 +01:00
2008-01-25 21:08:24 +01:00
2008-01-25 21:08:24 +01:00
2007-11-29 09:24:54 -08:00
2008-01-28 14:54:25 -08:00
2008-01-28 10:54:49 +01:00
2008-01-28 10:50:36 +01:00
2007-11-29 09:24:54 -08:00
2008-01-25 11:29:54 +11:00
2008-01-28 14:54:28 -08:00
2007-11-29 09:24:53 -08:00
2008-01-28 14:56:34 -08:00
2008-01-02 13:04:48 -08:00
2008-01-02 13:04:48 -08:00
2008-01-02 13:04:48 -08:00
2008-01-25 21:08:33 +01:00
2008-01-28 14:59:38 -08:00
2008-01-28 14:56:57 -08:00
2008-01-28 14:53:30 -08:00
2008-01-25 21:08:34 +01:00
2008-01-28 14:55:17 -08:00
2008-01-24 20:40:40 -08:00
2008-01-23 11:29:18 -06:00
2008-01-28 14:54:07 -08:00
2007-12-05 15:46:09 +01:00
2008-01-30 13:30:04 +01:00
2008-01-24 20:40:06 -08:00
2008-01-30 13:30:00 +01:00
2008-01-25 21:08:20 +01:00
2008-01-28 14:54:09 -08:00
2008-01-24 20:40:26 -08:00
2007-12-17 10:47:14 -08:00
2007-12-17 10:47:15 -08:00
2007-11-28 13:58:34 -08:00
2007-12-26 19:36:35 -08:00
2008-01-28 14:58:25 -08:00
2008-01-16 09:51:58 +01:00
2008-01-14 21:21:29 -08:00
2008-01-28 15:02:01 -08:00
6378ddb592