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| author |   Nikhil Rao <ncrao@google.com> | 2010-10-13 12:09:36 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2010-10-18 20:52:17 +0200 |
| commit | 2582f0eba54066b5e98ff2b27ef0cfa833b59f54 (patch) | |
| tree | c5a41c2b1458a813b40f20f529a3b86a93c24932 /drivers/message/fusion/lsi/mpi_log_sas.h | |
| parent | sched: Do not consider SCHED_IDLE tasks to be cache hot (diff) | |
| download | linux-dev-2582f0eba54066b5e98ff2b27ef0cfa833b59f54.tar.xz linux-dev-2582f0eba54066b5e98ff2b27ef0cfa833b59f54.zip | |
sched: Set group_imb only a task can be pulled from the busiest cpu
When cycling through sched groups to determine the busiest group, set
group_imb only if the busiest cpu has more than 1 runnable task. This patch
fixes the case where two cpus in a group have one runnable task each, but there
is a large weight differential between these two tasks. The load balancer is
unable to migrate any task from this group, and hence do not consider this
group to be imbalanced.
Signed-off-by: Nikhil Rao <ncrao@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1286996978-7007-3-git-send-email-ncrao@google.com>
[ small code readability edits ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/message/fusion/lsi/mpi_log_sas.h')
0 files changed, 0 insertions, 0 deletions