David Woolley wrote: > In article <[EMAIL PROTECTED]>, > Richard B. gilbert <[EMAIL PROTECTED]> wrote: >> edouard funke wrote: > >>> - change OS (again what is the impact ?) >> Some operating systems keep time a little better than others. Windows >> and Linux have both been known to lose clock interrupts during periods >> of high disk usage. I've had good results with Solaris (8, 9, & 10) but >> others here seem to have had results differing from mine! > > Also, Windows, in default configuration, will only provide a resolution > of about 15 to 20ms (whatever the clock interrupt rate is) in the times > provided to application programs. ntpd plays tricks to make its own times > more accurate, and therefore the phase of the system clock more accurate, > but, in my experience, that breaks down when the system is heavily loaded. > > It is possible that enabling multimedia timers will improve the resolution > of time supplied to application programs; I haven't tested this.
The Windows implementation uses the multimedia timers to provide the greatest accuracy. Danny _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
