On 2006-06-16, Jeremy Parrish <[EMAIL PROTECTED]> wrote: > We just bought 7 new servers from SuperMicro, and they all have the same > problem. They all gain about 1 second every 10 seconds or so (10% too > fast). I have tried various versions of Linux kernels (in particular, > 2.4.27, 2.6.15, 2.6.15-smp, 2.6.16.20...) with all kinds of kernel > options (noapic, acpi=off, clock=tsc, the list goes on...). There is no > noticeable difference between any of those.
If the offset increases monotonicly you should be able to control it by adjusting your tick. One procedure for accomplishing this is documented at http://ntp.isc.org/Support/KnownHardwareIssues#Section_9.1.6. I've had success using that technique to rein in a MacMini clock. > The servers use the Intel E7230 chipset and have Pentium D 805 > processors. Ntpd does not seem to correct the clock at all (I've let it > run for more than a day). I've tried installing adjtimex, and it adjusts > the rate of the clock by about -3000 seconds per day, but I would > something more accurate. Use adjtimex to correct your tick at boot time and then run ntpd. -- Steve Kostecke <[EMAIL PROTECTED]> NTP Public Services Project - http://ntp.isc.org/ _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
