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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-11-09 16:39:39 -0500
committerIngo Molnar <mingo@elte.hu>2007-11-09 16:39:39 -0500
commitb82d9fdd848abfbe7263a4ecd9bbb55e575100a6 (patch)
tree7d4c525cc4bd633c84abcfd8d934c84e5dc9ce7c /Documentation/pi-futex.txt
parent3c90e6e99b08f01d5684a3a07cceae6a543e4fa8 (diff)
sched: avoid large irq-latencies in smp-balancing
SMP balancing is done with IRQs disabled and can iterate the full rq. When rqs are large this can cause large irq-latencies. Limit the nr of iterations on each run. This fixes a scheduling latency regression reported by the -rt folks. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Gregory Haskins <ghaskins@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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