Messages in this thread | | | Date | Mon, 4 Nov 2002 16:16:36 -0300 | From | Werner Almesberger <> | Subject | Re: an idling kernel |
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Anu wrote: > Im ready to be beaten up for asking this question ( I am not sure > which group to post to -- all this is new to me) but, I was wondering how > one could figure out if the kernel was in idle mode (or idling).
There's more to is than just processes: if your kernel has runnable tasklets or pending interrupts, it is not truly idle, even though there may be no runnable processes.
In umlsim, I have some heuristics that seem to catch most cases, but may be a bit too paranoid. Look at timer.c:wait_kernel (called from idle) in http://www.almesberger.net/umlsim/umlsim-4.tar.gz
- Werner
-- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina wa@almesberger.net / /_http://www.almesberger.net/____________________________________________/ - 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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