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| author | Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> | 2007-10-15 17:00:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:12 +0200 |
| commit | b9fa3df33f9166daf81bfa8253d339f5a7726122 (patch) | |
| tree | 72e5c3b9ede48fbbb6c0dbbe94c123a4cb75f7a6 /kernel/sched_idletask.c | |
| parent | fad095a7b963d9e914e0cdb73e27355c47709441 (diff) | |
| download | kernel_samsung_smdk4412-b9fa3df33f9166daf81bfa8253d339f5a7726122.zip kernel_samsung_smdk4412-b9fa3df33f9166daf81bfa8253d339f5a7726122.tar.gz kernel_samsung_smdk4412-b9fa3df33f9166daf81bfa8253d339f5a7726122.tar.bz2 | |
sched: group scheduler, fix latency
There is a possibility that because of task of a group moving from one
cpu to another, it may gain more cpu time that desired. See
http://marc.info/?l=linux-kernel&m=119073197730334 for details.
This is an attempt to fix that problem. Basically it simulates dequeue
of higher level entities as if they are going to sleep. Similarly it
simulate wakeup of higher level entities as if they are waking up from
sleep.
Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched_idletask.c')
0 files changed, 0 insertions, 0 deletions