Messages in this thread | | | Date | Sun, 1 Aug 2004 17:27:11 +1000 | From | Anton Blanchard <> | Subject | Re: [PATCH] use for_each_cpu |
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> > The per cpu schedule counters need to be summed up over all possible cpus. > > When testing hotplug cpu remove I saw the sum of the online cpu count > > for nr_uninterruptible go negative which made the load average go nuts. > > I think the preferred approach here is to transfer the count over to the > current CPU in the CPU_DEAD handler.
They only look to be called out of proc, and once every 5 seconds for loadaverage calculations. Is it worth adding complexity to the cpu notifiers vs just using for_each_cpu?
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