Alan wrote: > Here's what I see from clockres without the -M option on > > Max 15.625 ms > Minimum 1.000 ms > Current 15.625 ms
This seems to indicate the internal timer ticks at 15.625 ms interval by default, but if the MM timer is set to highest resolution the timer tick changes to 1 ms. However, under Windows up to XP/Server 2003 the system time returned by the GetSystemTimeAsFileTime call still increments in 15.625 ms steps even if the MM timer has been set to 1 ms and thus the internal tick rate has been increased. You can check this with my wclkres tool. > However when I turn -M on the bottom line changes to Current 0.977 ms > > Is that really correct as even I can tell 0.977 is less than the > "minimun" 1.000 ms" in the previous line? I think 1 ms is just the nominal value and 0.977 is due to rounding errors or an inexact measurement interval. Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions