NTP StuffHere are reference clock performance statistics for my primary NTP servers.
I've added an externally visible server to the pool.ntp.org project. Here are statistics for that server.
When using NTP reference clocks that send their time marks via the serial data stream, jitter in the computer's serial port processing can cause a significant loss of performance. I've been experimenting with serial port settings for best performance.
I have some much older NTP related stuff moved to an archive page here.