Messages in this thread | | | Date | Thu, 9 Sep 2010 14:50:57 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH 0/2] [RFC] posix clock tuning |
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On Thu, 9 Sep 2010, Richard Cochran wrote: > From my point of view, the discussion is going round in circles. There
Sorry for coming late and adding more to the general confusion. :)
> seems to be agreement that supporting PTP hardware clocks is a good > idea. The objections seem to be about the form of the API. In general, > there are three avenues. > > 1. character device (like hpet) > 2. posix clock api > 3. sysfs > > Or possibly some combination of the three.
I fail to see the requirement for any of those. Either the hardware clock is suitable as a clocksource for general consumption, then it should just be used as a clock source. If it's not - e.g. because it's too slow to access - then it just should serve as a reference in the NTP style and steer the timekeeping into sync.
As I said in the other reply, I know that you want a global synchronized clock aside of CLOCK_REALTIME, but that's an easy to solve problem.
See my other reply for details.
Thanks,
tglx
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