On 21 окт, 00:59, E-Mail Sent to this address will be added to the
BlackLists <[email protected]> wrote:
> > By default, the timer resolution 15.625 ms (1/64 second),
> > ... increase the timer resolution.
>
> Current PCs' HPET timer is in the few NanoSeconds range?
> and the ACPI timer is in the few dozen NanoSeconds range?
Right algorithm for any (S)NTP request:
t1 = localTime
do { t2 = localTime ) while ( t1 == t2 );
rtd = rdtsc // round trip delay
send request to server, with originate timestamp = t2
retrieve response from server
rtd = ( rdtsc - rtd ) / ratio
In local network I can synchronize computers in range +-200 µs, and in
internet = +- 400 µs if use NTP servers pool.
All programs work with these algorithms?
2All, may be interested : http://www.satsignal.eu/ntp/NTP-on-Windows-Vista.html
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