mirror of
https://github.com/linuxkit/linuxkit.git
synced 2025-07-30 22:21:34 +00:00
33 lines
1020 B
Diff
33 lines
1020 B
Diff
From a931d63d7dfcbfc601eec9dda60eb254ed429f07 Mon Sep 17 00:00:00 2001
|
|
From: Thomas Gleixner <tglx@linutronix.de>
|
|
Date: Mon, 6 Jun 2011 12:12:51 +0200
|
|
Subject: [PATCH 212/418] 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>
|
|
---
|
|
kernel/sched/core.c | 4 ++++
|
|
1 file changed, 4 insertions(+)
|
|
|
|
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
|
|
index 407a4859c3fc..8eed4a2451c3 100644
|
|
--- a/kernel/sched/core.c
|
|
+++ b/kernel/sched/core.c
|
|
@@ -59,7 +59,11 @@ const_debug unsigned int sysctl_sched_features =
|
|
* 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
|
|
--
|
|
2.17.1
|
|
|