Messages in this thread | | | From | Jesse Barnes <> | Subject | Re: Linux time code | Date | Thu, 17 Aug 2006 15:11:59 -0700 |
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On Thursday, August 17, 2006 2:58 pm, john stultz wrote: > On Thu, 2006-08-17 at 13:43 +0200, Roman Zippel wrote: > > On Wed, 16 Aug 2006, john stultz wrote: > > > > For example there is a POSIX-like sys_clock_gettime() intended > > > > to server the end-user directly, but there's no counterpart > > > > do_clock_gettime() to server any in-kernel needs. > > > > > > Hmmm.. ktime_get(), ktime_get_ts() and ktime_get_real(), provide > > > this info. Is there something missing here? > > > > What is missing is the abiltity to map a clock to a posix clock, so > > that you would have CLOCK_REALTIME/CLOCK_MONOTONIC as NTP controlled > > clocks and other CLOCK_* as the raw clock. > > Is there a use case for this (wanting non-NTP corrected time on a > system running NTPd) you have in mind?
Isn't this what CLOCK_MONOTONIC[_HR] is for? It's not supposed to jump around at all, so the basic usage model is to use this source for timestamping purposes...
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