On Oct 22, 10:23 am, "David J Taylor" <david- tay...@blueyonder.co.uk.invalid> wrote: > That could explain why I see higher NTP jitter on a Windows system running > a USB network source (digital video data stream) than receiving a similar > data stream on a PCI card under either Windows XP or Windows-7.
Possibly, but USB, as a polled, token-ring like protocol, will always add jitters in this case. > Having said that, anyone with such time-critical requirements will want to > stop all non-essential and any unpredictable processes such as anti-virus > or system updates and virus scans. On Windows-7 that can be quite a > challenge compared to Windows XP. If one would stop all unpredictable processes in Windows one would have to stop Windows. Can one stop network and disk I/O in Windows? IMHO, if one wants a good, consistent NTP server, it should at least be Linux. HTH _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions