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authorGregory Haskins <ghaskins@novell.com>2008-05-12 15:21:01 -0400
committerIngo Molnar <mingo@elte.hu>2008-06-06 09:19:28 -0400
commit6e0534f278199f1e3dd1049b9bc19a7a5b87ada1 (patch)
tree25f4da14ec32927742db9f599ac779b4e83d1763 /Documentation/kernel-doc-nano-HOWTO.txt
parentf333fdc9098b71e2687e4e9b6349fcb352960d66 (diff)
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>
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