Peter Zijlstra 522fb20fbd sched/fair: Have SD_SERIALIZE affect newidle balancing ...

Also serialize the possiblty much more frequent newidle balancing for
the 'expensive' domains that have SD_BALANCE set.

Initial benchmarking by K Prateek and Tim showed no negative effect.

Split out from the larger patch moving sched_balance_running around
for ease of bisect and such.

Suggested-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Seconded-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/df068896-82f9-458d-8fff-5a2f654e8ffd@amd.com
Link: https://patch.msgid.link/6fed119b723c71552943bfe5798c93851b30a361.1762800251.git.tim.c.chen@linux.intel.com

# Conflicts:
#	kernel/sched/fair.c

2025-11-17 17:13:09 +01:00

..

autogroup.c

sched: Clean up and standardize #if/#else/#endif markers in sched/autogroup.[ch]

2025-06-13 08:47:14 +02:00

autogroup.h

sched: Clean up and standardize #if/#else/#endif markers in sched/autogroup.[ch]

2025-06-13 08:47:14 +02:00

build_policy.c

sched_ext: Move internal type and accessor definitions to ext_internal.h

2025-09-03 11:33:28 -10:00

build_utility.c

sched/smp: Make SMP unconditional

2025-06-13 08:47:18 +02:00

clock.c

sched: Clean up and standardize #if/#else/#endif markers in sched/clock.c

2025-06-13 08:47:14 +02:00

completion.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

core_sched.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

core.c

sched/core: Remove double update_rq_clock() in __set_cpus_allowed_ptr_locked()

2025-11-11 12:33:38 +01:00

cpuacct.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

cpudeadline.c

sched/deadline: only set free_cpus for online runqueues

2025-10-16 11:13:49 +02:00

cpudeadline.h

sched/deadline: only set free_cpus for online runqueues

2025-10-16 11:13:49 +02:00

cpufreq_schedutil.c

sched: Clean up and standardize #if/#else/#endif markers in sched/cpufreq_schedutil.c

2025-06-13 08:47:15 +02:00

cpufreq.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

cpupri.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

cpupri.h

sched/smp: Make SMP unconditional

2025-06-13 08:47:18 +02:00

cputime.c

sched: Clean up and standardize #if/#else/#endif markers in sched/cputime.c

2025-06-13 08:47:15 +02:00

deadline.c

sched/deadline: Minor cleanup in select_task_rq_dl()

2025-11-11 17:27:55 +01:00

debug.c

sched/eevdf: Fix min_vruntime vs avg_vruntime

2025-11-11 12:33:38 +01:00

ext_idle.c

sched_ext: Merge branch 'for-6.17-fixes' into for-6.18

2025-09-23 09:10:20 -10:00

ext_idle.h

sched_ext: Always use SMP versions in kernel/sched/ext_idle.h

2025-06-13 14:47:59 -10:00

ext_internal.h

sched_ext: Add SCX_EFLAG_INITIALIZED to indicate successful ops.init()

2025-09-23 09:03:26 -10:00

ext.c

sched/proxy: Yield the donor task

2025-11-11 12:33:36 +01:00

ext.h

sched_ext: Use cgroup_lock/unlock() to synchronize against cgroup operations

2025-09-03 11:36:07 -10:00

fair.c

sched/fair: Have SD_SERIALIZE affect newidle balancing

2025-11-17 17:13:09 +01:00

features.h

sched/fair: Untangle NEXT_BUDDY and pick_next_task()

2024-12-09 11:48:13 +01:00

idle.c

sched/deadline: Fix dl_server time accounting

2025-11-11 12:33:38 +01:00

isolation.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

loadavg.c

Merge branch 'tip/sched/urgent'

2025-07-14 17:16:28 +02:00

Makefile

tracing: Disable branch profiling in noinstr code

2025-03-22 09:49:26 +01:00

membarrier.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

pelt.c

sched: Clean up and standardize #if/#else/#endif markers in sched/pelt.[ch]

2025-06-13 08:47:17 +02:00

pelt.h

sched/fair: Switch to task based throttle model

2025-09-03 10:03:14 +02:00

psi.c

sched/psi: Fix psi_seq initialization

2025-08-04 10:51:22 -07:00

rq-offsets.c

sched: Make migrate_{en,dis}able() inline

2025-09-25 09:57:16 +02:00

rt.c

sched/proxy: Yield the donor task

2025-11-11 12:33:36 +01:00

sched-pelt.h

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

sched.h

sched/deadline: Fix dl_server time accounting

2025-11-11 12:33:38 +01:00

smp.h

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

stats.c

sched/smp: Use the SMP version of schedstats

2025-06-13 08:47:21 +02:00

stats.h

sched: Match __task_rq_{,un}lock()

2025-10-16 11:13:54 +02:00

stop_task.c

sched: Add support to pick functions to take rf

2025-10-16 11:13:55 +02:00

swait.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

syscalls.c

sched/proxy: Yield the donor task

2025-11-11 12:33:36 +01:00

topology.c

sched: Create architecture specific sched domain distances

2025-10-16 11:13:49 +02:00

wait_bit.c

sched: Make clangd usable

2025-06-11 11:20:53 +02:00

wait.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2025-07-30 17:14:01 -07:00