[time-nuts] Re: PPS latency? User vs kernel mode
Poul-Henning Kamp
phk at phk.freebsd.dk
Tue Dec 14 05:35:56 UTC 2021
--------
Andrew Kalman writes:
> in a cooperative RTOS, the only latency is the MCU's own interrupt handling
> mechanism.
Which, as I explained earlier in the thread, is increasingly rubbish
on any high-end platform these days because it is gone "soft" and become
a message-passing phenomena across several clock domains etc.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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