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linux/kernel/sched
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Vincent Guittot 7ee7642c91 sched/fair: Stabilize asym cpu capacity system idle cpu selection 
select_idle_capacity() not only looks for an idle cpu that fits for the
waking task but also for cpu with highest bandwidth when no cpu fits.
Start the loop with target cpu so it will be selected 1st when no cpu fits
but several cpus shared the same bandwidth. Starting with target cpu
prevents the task to migrate between cpus with same bandwidth at every
wakeup when no cpu fits.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230711081359.868862-1-vincent.guittot@linaro.org
2023-07-13 15:21:53 +02:00
..
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 sched/headers: Add header guard to kernel/sched/stats.h and kernel/sched/autogroup.h 2022-02-23 08:22:00 +01:00
build_policy.c sched: Fix missing prototype warnings 2022-05-01 10:03:43 +02:00
build_utility.c sched: Fix missing prototype warnings 2022-05-01 10:03:43 +02:00
clock.c Locking changes for v6.5: 2023-06-27 14:14:30 -07:00
completion.c sched/completion: Add wait_for_completion_state() 2022-09-07 21:53:49 +02:00
core.c sched/core: introduce sched_core_idle_cpu() 2023-07-13 15:21:50 +02:00
core_sched.c sched: Rename task_running() to task_on_cpu() 2022-09-07 21:53:47 +02:00
cpuacct.c Merge branch 'sched/fast-headers' into sched/core 2022-03-15 09:05:05 +01:00
cpudeadline.c sched/core: Introduce sched_asym_cpucap_active() 2022-08-02 12:32:45 +02:00
cpudeadline.h
cpufreq.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
cpufreq_schedutil.c sched/fair, cpufreq: Introduce 'runnable boosting' 2023-06-05 21:13:44 +02:00
cpupri.c sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE() 2022-08-12 11:25:10 +02:00
cpupri.h sched/cpupri: Add CPUPRI_HIGHER 2020-10-29 11:00:30 +01:00
cputime.c cputime: remove cputime_to_nsecs fallback 2022-12-27 12:52:17 +01:00
deadline.c cgroup: Changes for v6.5 2023-06-27 16:54:21 -07:00
debug.c sched/debug: Dump domains' sched group flags 2023-07-13 15:21:53 +02:00
fair.c sched/fair: Stabilize asym cpu capacity system idle cpu selection 2023-07-13 15:21:53 +02:00
features.h sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg 2022-06-28 09:08:30 +02:00
idle.c sched/idle: Mark arch_cpu_idle_dead() __noreturn 2023-03-08 08:44:28 -08:00
isolation.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
loadavg.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
Makefile sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
membarrier.c sched/membarrier: Introduce MEMBARRIER_CMD_GET_REGISTRATIONS 2023-01-07 11:29:29 +01:00
pelt.c sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
pelt.h sched/fair: Decay task PELT values during wakeup migration 2022-06-28 09:17:46 +02:00
psi.c sched/psi: make psi_cgroups_enabled static 2023-07-13 15:21:50 +02:00
rt.c sched/rt: Fix bad task migration for rt tasks 2023-04-21 13:24:21 +02:00
sched-pelt.h
sched.h sched/topology: Record number of cores in sched group 2023-07-13 15:21:51 +02:00
smp.h sched, smp: Trace smp callback causing an IPI 2023-03-24 11:01:29 +01:00
stats.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
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: Add update_current_exec_runtime helper 2022-08-27 00:05:35 +02:00
swait.c sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there 2022-02-23 10:58:33 +01:00
topology.c sched/topology: Record number of cores in sched group 2023-07-13 15:21:51 +02:00
wait.c sched/wait: Fix a kthread_park race with wait_woken() 2023-06-16 17:08:01 +02:00
wait_bit.c wait_on_bit: add an acquire memory barrier 2022-08-26 09:30:25 -07:00