Peter Zijlstra 218050855e
sched: adaptive scheduler granularity ...
Instead of specifying the preemption granularity, specify the wanted
latency. By fixing the granlarity to a constany the wakeup latency
it a function of the number of running tasks on the rq.
Invert this relation.
sysctl_sched_granularity becomes a minimum for the dynamic granularity
computed from the new sysctl_sched_latency.
Then use this latency to do more intelligent granularity decisions: if
there are fewer tasks running then we can schedule coarser. This helps
performance while still always keeping the latency target.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl >
Signed-off-by: Ingo Molnar <mingo@elte.hu >
2007-08-25 18:41:53 +02:00
2007-07-30 16:26:27 -03:00
2007-07-26 01:53:39 +02:00
2007-08-04 21:18:16 -07:00
2007-07-24 09:28:11 +02:00
2007-07-31 15:39:44 -07:00
2007-07-23 13:56:16 -04:00
2007-07-25 12:02:21 -07:00
2007-07-20 08:44:19 -07:00
2007-07-20 01:11:59 +02:00
2007-08-23 21:37:45 -07:00
2007-08-11 22:34:49 +02:00
2007-07-27 08:08:24 +02:00
2007-08-11 22:34:48 +02:00
2007-07-31 10:43:05 -05:00
2007-08-11 15:47:42 -07:00
2007-07-20 11:22:30 -07:00
2007-07-21 17:49:14 -07:00
2007-07-21 17:49:14 -07:00
2007-07-21 18:37:08 -07:00
2007-07-26 11:11:57 -07:00
2007-08-12 18:08:19 +02:00
2007-07-20 21:42:24 +02:00
2007-07-26 12:13:06 -07:00
2007-07-24 09:28:11 +02:00
2007-07-20 21:42:24 +02:00
2007-07-31 14:00:29 -07:00
2007-07-29 16:45:38 -07:00
2007-08-11 22:34:47 +02:00
2007-07-30 00:27:28 -07:00
2007-07-29 17:09:29 -07:00
2007-07-20 11:11:16 +02:00
2007-07-31 15:39:41 -07:00
2007-07-20 10:11:58 +09:00
2007-08-20 22:42:56 +02:00
2007-08-11 15:58:13 -07:00
2007-07-28 19:42:22 -07:00
2007-07-20 10:06:38 +02:00
2007-07-31 02:28:17 -07:00
2007-07-21 19:07:33 -07:00
2007-07-31 15:39:41 -07:00
2007-08-22 19:52:45 -07:00
2007-07-31 15:39:40 -07:00
2007-07-31 15:39:40 -07:00
2007-08-11 15:47:41 -07:00
2007-07-30 14:25:12 -07:00
2007-07-22 11:22:01 -07:00
2007-07-26 11:35:17 -07:00
2007-07-26 11:35:17 -07:00
2007-07-28 19:54:33 -07:00
2007-07-24 16:55:01 -04:00
2007-07-24 12:24:59 -07:00
2007-08-22 19:52:47 -07:00
2007-08-22 19:52:45 -07:00
2007-08-22 19:52:47 -07:00
2007-08-17 15:16:37 -07:00
2007-07-24 21:16:02 +00:00
2007-08-13 22:52:14 -07:00
2007-08-07 15:13:17 -04:00
2007-07-31 02:28:15 -07:00
2007-07-20 13:41:56 +10:00
2007-07-22 21:30:59 +10:00
2007-07-20 13:10:22 +10:00
2007-07-20 21:42:24 +02:00
2007-08-22 14:48:41 -07:00
2007-08-22 14:48:41 -07:00
2007-07-30 12:25:49 -07:00
2007-07-26 11:35:21 -07:00
2007-07-26 11:35:21 -07:00
2007-07-26 13:40:43 +02:00
2007-08-11 15:47:40 -07:00
2007-08-11 15:47:41 -07:00
2007-07-28 19:42:22 -07:00
2007-07-21 18:37:10 -07:00
2007-08-25 18:41:53 +02:00
2007-08-22 19:52:45 -07:00
2007-08-22 19:52:47 -07:00
2007-07-24 12:24:58 -07:00
2007-07-24 12:24:58 -07:00
2007-08-22 19:52:44 -07:00
2007-07-22 11:03:37 -07:00
2007-07-31 02:28:28 -07:00
2007-07-20 12:33:44 -07:00
2007-07-20 08:24:50 -07:00
2007-07-29 16:45:38 -07:00
2007-07-20 21:42:15 +02:00
2007-07-31 15:39:39 -07:00
2007-07-25 10:17:44 -07:00
2007-07-20 11:23:02 -07:00
2007-08-02 17:41:40 +02:00
2007-08-11 15:47:41 -07:00
2007-07-30 13:27:44 -07:00
2007-08-20 12:18:01 -03:00
2007-07-21 18:37:14 -07:00
218050855e