diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-01-15 14:53:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-15 15:07:28 +0100 |
| commit | cce7ade803699463ecc62a065ca522004f7ccb3d (patch) | |
| tree | b71c6ccdae2920b1f55fb2e857fc3fa927bee630 /kernel/sched.c | |
| parent | 98a4826b99bc4bcc34c604b2fc4fcf4d771600ec (diff) | |
| download | lwn-cce7ade803699463ecc62a065ca522004f7ccb3d.tar.gz lwn-cce7ade803699463ecc62a065ca522004f7ccb3d.zip | |
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/sched.c')
| -rw-r--r-- | kernel/sched.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index ed62d1cee05c..6acfb3c2398b 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 |