"Unruh" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] [...] >> What should I be doing to get 20 us? Buy all new computers with >> gigabit Ethernet? > > I suspect buying better switches. And it looks to me like you should > definitely NOT go to gigabit Ethernet if you want good timing.
Seeing as how gigabit Ethernet uses jumbo frames to reach decent throughput, I suspect it's subject to higher jitter at the network level. NTP frames are short, but if it's contending with a large download, there will be a relatively large unpredictable delay on the line. Better switches would probably help in my case. Calling my attic 'low budget' would be putting it nicely. In response to Hal's observation that faster computers seem to have lower delays, my fastest (by far) host has the second-lowest delay (~0.77 ms), but the one to beat it is .56 ms through a RealTek 8139 on a machine half as fast. Groetjes, Maarten Wiltink _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
