Hey Arnd, Peter, On Wed, Jun 12, 2019 at 4:01 PM Arnd Bergmann <a...@arndb.de> wrote: > Documentation/core-api/timekeeping.rst describes the timekeeping > interfaces. I think what you want here is ktime_get_coarse_boottime(). > > Note that "coarse" means "don't access the hardware clocksource" > here, which is faster than "fast", but less accurate. > > This is updated as often as "jiffies_64", but is in nanosecond resolution > and takes suspended time into account.
Oh, thanks. Indeed ktime_get_coarse_boottime seems even better. It's perhaps a bit slower, in that it has that seqlock, but that might give better synchronization between CPUs as well. Peter - any immediate downside you can think of compared to local_clock()? Jason
