diff options
| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2008-07-30 01:33:22 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-30 12:41:44 -0400 |
| commit | f5393693e96393131a4a2e2743f883986d508503 (patch) | |
| tree | 91c6b0687939b9361c8cdcebb05494f1d0524f72 /kernel/rwsem.c | |
| parent | 8d1e6266f512b3a94ef6d33528ff385f1aea0392 (diff) | |
cpuset: speed up sched domain partition
All child cpusets contain a subset of the parent's cpus, so we can skip
them when partitioning sched domains. This decreases 'csa' greately for
cpusets with multi-level hierarchy.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/rwsem.c')
0 files changed, 0 insertions, 0 deletions