Based on > 1 response I upgraded to
ntp-4.2.7p98-win-x86-bin.zip
from
http://davehart.net/ntp/win/x86/
However, though NTP is running and the "offset" values on my win7-32
box are quite horrible. (i should note that on same subnet using same
time server a fedora12 box achieves sub 1msec offset easily and stays
there. )
The graphic below shows how terrible the ntp is behaving on my windows
7 box.
http://www.atl.external.lmco.com/projects/QoS/documents/win7_feb23.png
What else can I try here? This is puzzling. Is there any option/patch
one has to apply to windows7-32 for NTP to work well on it?
Gautam
On my LAN, I set minpoll=maxpoll=5 (32 seconds), and this is what I see on
a LAN-synched Win-7 64-bit PC:
http://www.satsignal.eu/mrtg/alta-ntp-b.html
One parameter which affected other very network sensitive software was:
http://en.wikipedia.org/wiki/Multimedia_Class_Scheduler_Service
http://support.microsoft.com/kb/948066
http://msdn.microsoft.com/en-us/library/ms684247%28VS.85%29
In: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\Multimedia\SystemProfile\
I set: NetworkThrottlingIndex to -1 (FFFFFFFF) (stops throttle)
and SystemResponsiveness to 80 (=80% to non-multmedia)
these may make a difference for you, although I didn't change them to get
better timekeeping. Feed the box with PPS and you might see:
http://www.satsignal.eu/mrtg/stamsund_ntp_2.html
which is from a Windows-7 32-bit system.
Are you sure that, on your system, there are no other programs trying to
set the time? What do the NTP entries in the event viewer say? Have you
set the "High performance" power option on your PC, or at least stopped
anything which grossly changes the CPU clock frequency? I would like to
see your systems as good as mine, if I can help!
Cheers,
David
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