diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2023-05-31 13:58:42 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-07-19 09:43:58 +0200 |
| commit | 86bfbb7ce4f67a88df2639198169b685668e7349 (patch) | |
| tree | 43d0a9352919a405cae0586c7c38e8caca081f76 /kernel/sched/core.c | |
| parent | e0c2ff903c320d3fd3c2c604dc401b3b7c0a1d13 (diff) | |
sched/fair: Add lag based placement
With the introduction of avg_vruntime, it is possible to approximate
lag (the entire purpose of introducing it in fact). Use this to do lag
based placement over sleep+wake.
Specifically, the FAIR_SLEEPERS thing places things too far to the
left and messes up the deadline aspect of EEVDF.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230531124603.794929315@infradead.org
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 83e36547af17..84b0d47ed9b8 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4501,6 +4501,7 @@ static void __sched_fork(unsigned long clone_flags, struct task_struct *p) p->se.prev_sum_exec_runtime = 0; p->se.nr_migrations = 0; p->se.vruntime = 0; + p->se.vlag = 0; INIT_LIST_HEAD(&p->se.group_node); #ifdef CONFIG_FAIR_GROUP_SCHED |