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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-01-15 13:53:37 (GMT)
committerIngo Molnar <mingo@elte.hu>2009-01-15 14:07:28 (GMT)
commitcce7ade803699463ecc62a065ca522004f7ccb3d (patch)
treeb71c6ccdae2920b1f55fb2e857fc3fa927bee630 /kernel
parent98a4826b99bc4bcc34c604b2fc4fcf4d771600ec (diff)
downloadlinux-cce7ade803699463ecc62a065ca522004f7ccb3d.tar.xz
sched: SCHED_IDLE weight change
Increase the SCHED_IDLE weight from 2 to 3, this gives much more stable vruntime numbers. time advanced in 100ms: weight=2 64765.988352 67012.881408 88501.412352 weight=3 35496.181411 34130.971298 35497.411573 Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index ed62d1c..6acfb3c 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1323,8 +1323,8 @@ static inline void update_load_sub(struct load_weight *lw, unsigned long dec)
* slice expiry etc.
*/
-#define WEIGHT_IDLEPRIO 2
-#define WMULT_IDLEPRIO (1 << 31)
+#define WEIGHT_IDLEPRIO 3
+#define WMULT_IDLEPRIO 1431655765
/*
* Nice levels are multiplicative, with a gentle 10% change for every