Messages in this thread | | | Date | Thu, 28 Oct 2004 15:10:26 +0100 | From | DaMouse <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.5.2 |
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On Thu, 28 Oct 2004 15:57:06 +0200, Ingo Molnar <mingo@elte.hu> wrote: > > * 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
What kind of benchmarking tools about from the inkernel timing/tracing do you use for testing REALTIME_PREEMPT?
> > Ingo
-DaMouse
-- I know I broke SOMETHING but its their fault for not fixing it before me - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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