[ntp:questions] Win2k3 Server as NTP server?
david at ex.djwhome.demon.invalid
Thu Dec 3 21:38:57 UTC 2009
Richard B. Gilbert wrote:
> Running NTPD on Windows *as* *a* *server* would be most people's LAST
> choice unless there is no other! Windows "Vista" may have changed this
> but, the last time I looked, Windows' clock "ticks" every 17
> milliseconds. Using this as a server is like "measure with micrometer,
> mark with chalk, cut with axe"!
Windows ticks at a variable rate, down to 500 microseconds, on recent
systems, when they have multimedia timers enabled.
ntpd interpolates using the TSC counter, however this interpolation is
vulnerable to scheduling delays. I don't know how well current versions
behave, but earlier versions performed poorly when the system was 100%
CPU, due to SETI at Home, but quite good when the load was lower.
More information about the questions