Dave Hart wrote: > Are you using ntpd on Windows and dissatisfied with its timekeeping? > I have a patched ntpd with changes intended to improve its accuracy > that could use some wider testing. Source and binaries are linked to > below. > > Two changes are particularly noteworthy: > > 1. Code to disable the interpolation approach on systems where the > Windows system clock is observed to have better than 5ms precision. > Only Windows Vista so far has been observed with less than 10ms > increments to the system time of day clock, and then only when some > software (such as ntpd with -M) has raised the multimedia timer > resolution. This means -M is recommended by me for Vista users of > this experimental version. Without -M, ntpd may use interpolation, > which will work until you browse to a Flash website or launch a Java
I've installed your version, and included -M in my startup parameters: I get Event Log (Application) messages about stuff like: System time quantum 1.000 msec, min. slew 6.410 ppm/s Clock interrupt period 15.600 msec (startup slew 0.1 usec/period) Performance counter frequency 14.318 MHz MM timer resolution: 1..1000000 msec, set to 1 msec ntpd 4.2....@dlh-qpc-o Jan 28 6:47:59.16 (UTC-08:00) 2009 (51) which seems to me to indicate that your code is indeed running, but I don't get any 'filtered... QPC' messages at all? Vista-64 sp1 btw. Terje -- - <Terje.Mathisen at tmsw.no> "almost all programming can be viewed as an exercise in caching" _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
