[ntp:questions] Support for "tickless" systems

David Taylor david-taylor at blueyonder.co.uk.invalid
Thu Nov 20 19:36:12 UTC 2014


On 20/11/2014 18:19, Paul wrote:
[]
> Because the HZ in NO_HZ leads you to the wrong conclusion.
>
> NO_HZ means/meant don't deliver timer/preemption interrupts to idle or
> single process cpus when there are multiple cpus.  The boot cpu always uses
> HZ_NNN, the other cpus (if there are any -- there aren't on my quasi-i486
> box) may or may not depending on process contention.  NO_HZ_IDLE is more
> suggestive.

OK, sort of.  As the Raspberry Pi is a single-core CPU, does that mean 
that it can never be tickless?

-- 
Cheers,
David
Web: http://www.satsignal.eu



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