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| author | Gregory Haskins <ghaskins@novell.com> | 2008-05-12 21:21:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-06 15:19:28 +0200 |
| commit | 6e0534f278199f1e3dd1049b9bc19a7a5b87ada1 (patch) | |
| tree | 25f4da14ec32927742db9f599ac779b4e83d1763 /mm/quicklist.c | |
| parent | sched: make !hrtick faster (diff) | |
| download | linux-6e0534f278199f1e3dd1049b9bc19a7a5b87ada1.tar.xz linux-6e0534f278199f1e3dd1049b9bc19a7a5b87ada1.zip | |
sched: use a 2-d bitmap for searching lowest-pri CPU
The current code use a linear algorithm which causes scaling issues
on larger SMP machines. This patch replaces that algorithm with a
2-dimensional bitmap to reduce latencies in the wake-up path.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'mm/quicklist.c')
0 files changed, 0 insertions, 0 deletions