-----Original Message-----
From: li...@lazygranch.com
[]
Just a FYI here, using Dave's logging program, I found large errors in NTP
when the antivirus did its thing. I don't know if it was due to CPU activity
interfering with NTP or the cabinet heating up when the antivirus was
running.
============================
Take a look at the plots for Bacchus:
http://www.satsignal.eu/mrtg/performance_bacchus.php
There is a disk optimiser which kicks in on Wednesday at 03:00 UTC, and the
box goes to 100% CPU for an hour. The offset reported by NTP goes from 0 to
about +1 millisecond, and recovers over the next 150 minutes or so after the
CPU use goes back to its near-zero resting level.
With the PCs as stratum-1 servers, ambient or usage induced temperature
variations do appear to be the main source of error, but not with Windows-7
client PCs served over the LAN.
Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk
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