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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-06-06 12:12:51 +0200 |
|---|---|---|
| committer | Daniel Wagner <wagi@monom.org> | 2018-07-26 06:43:25 +0200 |
| commit | 45295ade7a57ab604c2dd929184ab22d8815de37 (patch) | |
| tree | de69e287c87401586e479f2f26ab556c10858288 /kernel/sched | |
| parent | d044148843bdd795770d4b88b4e646be385b27d1 (diff) | |
| download | linux-rt-45295ade7a57ab604c2dd929184ab22d8815de37.tar.gz | |
sched: Limit the number of task migrations per batch
Put an upper limit on the number of tasks which are migrated per batch
to avoid large latencies.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index ed278befab8d..b952ac4aa5ae 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -260,7 +260,11 @@ late_initcall(sched_init_debug); * Number of tasks to iterate in a single balance run. * Limited because this is done with IRQs disabled. */ +#ifndef CONFIG_PREEMPT_RT_FULL const_debug unsigned int sysctl_sched_nr_migrate = 32; +#else +const_debug unsigned int sysctl_sched_nr_migrate = 8; +#endif /* * period over which we average the RT time consumption, measured |