On Fri, Jun 22, 2018 at 2:09 PM, Thomas Gleixner <t...@linutronix.de> wrote: > On Mon, 4 Jun 2018, Miroslav Lichvar wrote: > >> When the NTP frequency is set directly from userspace using the >> ADJ_FREQUENCY or ADJ_TICK timex mode, immediately update the >> timekeeper's multiplier instead of waiting for the next tick. >> >> This removes a hidden non-deterministic delay in setting of the >> frequency and allows an extremely tight control of the system clock >> with update rates close to or even exceeding the kernel HZ. >> >> The update is limited to archs using modern timekeeping >> (!ARCH_USES_GETTIMEOFFSET). > > John ?????
Yea. I've got this in my toqueue list. I'm going to take another pass at testing and hopefully send it your way. thanks -john