In message <5213b89d.4070...@pobox.com>, David Gravereaux writes: >I guess I can't go with TSC on this hardware.
You never should, for precision timekeeping, for a host of technical hacks, all outside your control. The most interesting hardware for precision timekeeping these days are the Intel 82599 10Gbit/s ethernet controller, which has support for PTP packet stamping *AND* support for timing electrical signals using the same free-running counter as used for the PTP packets. It's only somewhat semi-documented in the 1000 page data-sheet, but it's the best chip there is right now, and a board will only set you back a few hundred USD. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
