VisionFive2 Linux kernel

author: Thomas Gleixner <tglx@linutronix.de> 2021-09-28 14:24:25 +0200 committer: Minda Chen <minda.chen@starfivetech.com> 2023-11-06 19:24:43 +0800 commit: 87c9b160ff77705f4bc00b477b145732d156920c parent: 1fec6ba6b573fee535feac7caa88fdadce38b974

Commit Summary:

sched: Limit the number of task migrations per batch on RT

Diffstat:

1 file changed, 4 insertions, 0 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index df2f0b53be15..e760c0d83c93 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -74,7 +74,11 @@ __read_mostly int sysctl_resched_latency_warn_once = 1;
  * Number of tasks to iterate in a single balance run.
  * Limited because this is done with IRQs disabled.
  */
+#ifdef CONFIG_PREEMPT_RT
+const_debug unsigned int sysctl_sched_nr_migrate = 8;
+#else
 const_debug unsigned int sysctl_sched_nr_migrate = 32;
+#endif
 
 /*
  * period over which we measure -rt task CPU usage in us.