linux/kernel/sched
Vincent Guittot b3edde44e5 cpufreq/schedutil: Use a fixed reference frequency
cpuinfo.max_freq can change at runtime because of boost as an example. This
implies that the value could be different than the one that has been
used when computing the capacity of a CPU.

The new arch_scale_freq_ref() returns a fixed and coherent reference
frequency that can be used when computing a frequency based on utilization.

Use this arch_scale_freq_ref() when available and fallback to
policy otherwise.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20231211104855.558096-4-vincent.guittot@linaro.org
2023-12-23 15:52:35 +01:00
..
autogroup.c sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE() 2022-08-12 11:25:10 +02:00
autogroup.h
build_policy.c
build_utility.c sched/headers: Remove duplicate header inclusions 2023-10-03 21:27:55 +02:00
clock.c Locking changes for v6.5: 2023-06-27 14:14:30 -07:00
completion.c sched: add a few helpers to wake up tasks on the current cpu 2023-07-17 16:08:08 -07:00
core_sched.c sched: Rename task_running() to task_on_cpu() 2022-09-07 21:53:47 +02:00
core.c sched/cpufreq: Rework schedutil governor performance estimation 2023-11-23 11:32:01 +01:00
cpuacct.c
cpudeadline.c sched/topology: Consolidate and clean up access to a CPU's max compute capacity 2023-10-09 12:59:48 +02:00
cpudeadline.h
cpufreq_schedutil.c cpufreq/schedutil: Use a fixed reference frequency 2023-12-23 15:52:35 +01:00
cpufreq.c
cpupri.c sched/rt: Fix live lock between select_fallback_rq() and RT push 2023-09-28 22:58:13 +02:00
cpupri.h
cputime.c cputime: remove cputime_to_nsecs fallback 2022-12-27 12:52:17 +01:00
deadline.c sched/deadline: Introduce deadline servers 2023-11-15 09:57:51 +01:00
debug.c sched/eevdf: Sort the rbtree by virtual deadline 2023-11-15 09:57:47 +01:00
fair.c sched/fair: Update min_vruntime for reweight_entity() correctly 2023-11-29 15:43:52 +01:00
features.h sched/fair: Remove SIS_PROP 2023-10-24 10:38:44 +02:00
idle.c sched/cpuidle: Comment about timers requirements VS idle handler 2023-11-15 09:57:51 +01:00
isolation.c
loadavg.c
Makefile
membarrier.c sched/membarrier: Introduce MEMBARRIER_CMD_GET_REGISTRATIONS 2023-01-07 11:29:29 +01:00
pelt.c sched: Make PELT acronym definition searchable 2023-10-13 09:56:30 +02:00
pelt.h sched/fair: Decay task PELT values during wakeup migration 2022-06-28 09:17:46 +02:00
psi.c sched/psi: Update poll => rtpoll in relevant comments 2023-10-16 13:42:49 +02:00
rt.c sched: Unify runtime accounting across classes 2023-11-15 09:57:48 +01:00
sched-pelt.h
sched.h sched/cpufreq: Rework iowait boost 2023-11-23 11:32:02 +01:00
smp.h sched, smp: Trace smp callback causing an IPI 2023-03-24 11:01:29 +01:00
stats.c
stats.h sched/psi: Use task->psi_flags to clear in CPU migration 2022-10-30 10:12:15 +01:00
stop_task.c sched: Unify runtime accounting across classes 2023-11-15 09:57:48 +01:00
swait.c sched: add a few helpers to wake up tasks on the current cpu 2023-07-17 16:08:08 -07:00
topology.c sched/fair: Scan cluster before scanning LLC in wake-up path 2023-10-24 10:38:43 +02:00
wait_bit.c wait_on_bit: add an acquire memory barrier 2022-08-26 09:30:25 -07:00
wait.c sched: remove wait bookmarks 2023-10-18 14:34:18 -07:00