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SubjectRe: [PATCH] Add support for deferrable timers (respun-Mar28)

> Might also be useful to add an extra option to "top" to reduce the
> polling frequency if the system is otherwise idle. A fixed 30-sec
> timer and a deferrable 1-sec timer or somesuch?

Hmm, i think the current implementation is per CPU. top really would
like to have one that applies to all CPUs though.

Thinking about it for sane user space semantics it would probably need
a global implementation anyways.

Perhaps it could use the same infrastructure as RCU does to handle this?

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