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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-11-09 22:39:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-11-09 22:39:39 +0100 |
| commit | b82d9fdd848abfbe7263a4ecd9bbb55e575100a6 (patch) | |
| tree | 7d4c525cc4bd633c84abcfd8d934c84e5dc9ce7c /init/main.c | |
| parent | 3c90e6e99b08f01d5684a3a07cceae6a543e4fa8 (diff) | |
| download | lwn-b82d9fdd848abfbe7263a4ecd9bbb55e575100a6.tar.gz lwn-b82d9fdd848abfbe7263a4ecd9bbb55e575100a6.zip | |
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>
Diffstat (limited to 'init/main.c')
0 files changed, 0 insertions, 0 deletions