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    Subject[PATCH -rt 4/9] ifdef raise_softirq_irqoff wakeup
    raise_softirq is called every timer interrupt in run_local_timers(),
    which causes a thread wakeup to happen every timer interrupt. This
    happens in !CONFIG_PREEMPT_SOFTIRQS, which means the wakeup is most
    likely not needed. In addition it also fouls calc_load() since it's,
    agian, observing at least one thread running on every invocation.

    Signed-off-by: Daniel Walker <>

    kernel/softirq.c | 2 ++
    1 file changed, 2 insertions(+)

    Index: linux-2.6.22/kernel/softirq.c
    --- linux-2.6.22.orig/kernel/softirq.c
    +++ linux-2.6.22/kernel/softirq.c
    @@ -508,7 +508,9 @@ inline fastcall void raise_softirq_irqof


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