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    SubjectRe: [RFC 3/4] Disable scheduler tick when we are running SCHED_FIFO tasks
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    On Wed, 2010-09-08 at 14:29 +0200, Jan Blunck wrote:
    > This patch is disabling the scheduler tick to go off when there is a task
    > with SCHED_FIFO policy running. Since these tasks are not timesliced anyway
    > we only care about timers, softirqs and such stuff just like when we disable
    > the tick during idle periods.
    >

    Also, doesn't this break any and all jiffies users?

    And you need to restart the tick on call_rcu() and everything else that
    requires the tick for processing.



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