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| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-01-25 21:08:29 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-01-25 21:08:29 +0100 |
| commit | fa85ae2418e6843953107cd6a06f645752829bc0 (patch) | |
| tree | 004130ac471247a29d3f6adfbfe61c474e725779 /kernel/sysctl.c | |
| parent | sched: high-res preemption tick (diff) | |
| download | linux-dev-fa85ae2418e6843953107cd6a06f645752829bc0.tar.xz linux-dev-fa85ae2418e6843953107cd6a06f645752829bc0.zip | |
sched: rt time limit
Very simple time limit on the realtime scheduling classes.
Allow the rq's realtime class to consume sched_rt_ratio of every
sched_rt_period slice. If the class exceeds this quota the fair class
will preempt the realtime class.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to '')
| -rw-r--r-- | kernel/sysctl.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 96f31c1bc4f0..3afbd25f43eb 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -306,7 +306,23 @@ static struct ctl_table kern_table[] = { .procname = "sched_nr_migrate", .data = &sysctl_sched_nr_migrate, .maxlen = sizeof(unsigned int), - .mode = 644, + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "sched_rt_period_ms", + .data = &sysctl_sched_rt_period, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "sched_rt_ratio", + .data = &sysctl_sched_rt_ratio, + .maxlen = sizeof(unsigned int), + .mode = 0644, .proc_handler = &proc_dointvec, }, #if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP) |