Date: Tue, 4 Jan 2000 04:04:41 -0800 (PST) From: Poul-Henning Kamp <phk@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_ntptime.c Message-ID: <200001041204.EAA21054@freefall.freebsd.org>
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phk 2000/01/04 04:04:41 PST
Modified files:
sys/kern kern_ntptime.c
Log:
Create a separate pps_offset variable to use for applying the
hardpps() produced offset component. This is tested and behaved
stable with frequency offsets from -338.05 to +499.91 PPM.
Interestingly the machine I tested this on would fail if the clock
were slower than 14.3132 MHz whereas it was perfectly happy to run
at 16.384 MHz, in other words [-340PPM ... +14.4%]
Make pps_shift tweakable with sysctl.
Revision Changes Path
1.31 +9 -2 src/sys/kern/kern_ntptime.c
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