Messages in this thread | | | Date | Thu, 28 Oct 2004 15:57:06 +0200 | From | Ingo Molnar <> | Subject | [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.5.2 |
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* Ingo Molnar <mingo@elte.hu> wrote:
> (right now it's not possible to do wakeup-timing without > LATENCY_TRACE, i'll fix that.)
i've fixed this in -RT-V0.5.2. Also, the trace_enabled=4 method is deprecated now and the new mechanism is to use:
/proc/sys/kernel/preempt_wakeup_timing
this flag is default-enabled. So starting at -RT-V0.5.2 to activate wakeup timing it's enough to enable PREEMPT_TIMING and reset the max after bootup:
echo 0 > /proc/sys/kernel/preempt_max_latency
this will switch back to critical-section timing/tracing:
echo 0 > /proc/sys/kernel/preempt_wakeup_timing
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