Re: [RFC][PATCH] tsc_khz= boot option to avoid TSC calibration variance

From: George Spelvin
Date: Mon May 11 2009 - 02:54:36 EST


Just as a data point, I have this patch running on two PPS-synced
NTP servers with apparent success. After thinking through the sign
conventions carefully, (if NTP reports a that it is applying a positive
clock frequency adjustment, the TSC frequency should be reduced by that
amount), I now have the NTP frequency offset within a couple PPM of 0.

Thanks for the patch!
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