Ricardo Neri 4006a72bdd sched/fair: Consider SMT in ASYM_PACKING load balance ...

When deciding to pull tasks in ASYM_PACKING, it is necessary not only to
check for the idle state of the destination CPU, dst_cpu, but also of
its SMT siblings.

If dst_cpu is idle but its SMT siblings are busy, performance suffers
if it pulls tasks from a medium priority CPU that does not have SMT
siblings.

Implement asym_smt_can_pull_tasks() to inspect the state of the SMT
siblings of both dst_cpu and the CPUs in the candidate busiest group.

Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Len Brown <len.brown@intel.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210911011819.12184-7-ricardo.neri-calderon@linux.intel.com

2021-10-05 15:52:06 +02:00

..

autogroup.c

sched/autogroup: Make autogroup_path() always available

2019-06-24 19:23:40 +02:00

autogroup.h

…

clock.c

sched: Fix various typos

2021-03-22 00:11:52 +01:00

completion.c

completion: Use lockdep_assert_RT_in_threaded_ctx() in complete_all()

2020-03-23 18:40:25 +01:00

core_sched.c

sched: prctl() core-scheduling interface

2021-05-12 11:43:31 +02:00

core.c

sched: Provide Kconfig support for default dynamic preempt mode

2021-10-05 15:51:56 +02:00

cpuacct.c

sched: Wrap rq::lock access

2021-05-12 11:43:26 +02:00

cpudeadline.c

sched,rt: Use the full cpumask for balancing

2020-11-10 18:39:00 +01:00

cpudeadline.h

…

cpufreq_schedutil.c

cpufreq: schedutil: Use kobject release() method to free sugov_tunables

2021-08-06 15:34:55 +02:00

cpufreq.c

cpufreq: Avoid leaving stale IRQ work items during CPU offline

2019-12-12 17:59:43 +01:00

cpupri.c

sched: Fix various typos

2021-03-22 00:11:52 +01:00

cpupri.h

sched/cpupri: Add CPUPRI_HIGHER

2020-10-29 11:00:30 +01:00

cputime.c

Merge tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-04-28 13:33:57 -07:00

deadline.c

sched/dl: Support schedstats for deadline sched class

2021-10-05 15:51:53 +02:00

debug.c

sched: Introduce task block time in schedstats

2021-10-05 15:51:48 +02:00

fair.c

sched/fair: Consider SMT in ASYM_PACKING load balance

2021-10-05 15:52:06 +02:00

features.h

sched: Warn on long periods of pending need_resched

2021-04-21 13:55:41 +02:00

idle.c

sched/idle: Make the idle timer expire in hard interrupt context

2021-09-09 10:36:16 +02:00

isolation.c

sched/isolation: Reconcile rcu_nocbs= and nohz_full=

2021-05-13 14:12:47 +02:00

loadavg.c

sched: Make multiple runqueue task counters 32-bit

2021-05-12 21:34:17 +02:00

Makefile

sched: Trivial core scheduling cookie management

2021-05-12 11:43:31 +02:00

membarrier.c

sched/membarrier: fix missing local execution of ipi_sync_rq_state()

2021-03-06 12:40:21 +01:00

pelt.c

sched: Fix various typos

2021-03-22 00:11:52 +01:00

pelt.h

Merge branch 'sched/urgent' into sched/core, to resolve conflicts

2021-06-18 11:31:25 +02:00

psi.c

Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2021-07-01 17:22:14 -07:00

rt.c

sched/rt: Support schedstats for RT sched class

2021-10-05 15:51:51 +02:00

sched-pelt.h

sched/fair: Fix "runnable_avg_yN_inv" not used warnings

2019-06-17 12:15:58 +02:00

sched.h

sched/topology: Introduce sched_group::flags

2021-10-05 15:52:00 +02:00

smp.h

sched/headers: Split out open-coded prototypes into kernel/sched/smp.h

2020-05-28 11:03:20 +02:00

stats.c

sched: Introduce task block time in schedstats

2021-10-05 15:51:48 +02:00

stats.h

sched: Make schedstats helpers independent of fair sched class

2021-10-05 15:51:47 +02:00

stop_task.c

sched: Make struct sched_statistics independent of fair sched class

2021-10-05 15:51:45 +02:00

swait.c

sched/swait: Prepare usage in completions

2020-03-21 16:00:23 +01:00

topology.c

sched/topology: Introduce sched_group::flags

2021-10-05 15:52:00 +02:00

wait_bit.c

sched/wait: fix ___wait_var_event(exclusive)

2019-12-17 13:32:50 +01:00

wait.c

rq-qos: fix missed wake-ups in rq_qos_throttle try two

2021-06-08 15:12:57 -06:00