[LinuxPPS] linux-2.6.27-rc1-pps
William S. Brasher
billb958 at door.net
Sun Aug 3 18:02:32 CEST 2008
I am running linux-2.6.27-rc1 patched with ntp-pps-2.6.27-rc1.diff with
the following results about 90 minutes after booting the new kernel:
$ ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
+GPS_NMEA(0) .GPS. 0 l 10 16 177 0.000 -0.252 0.008
oPPS(0) .PPS. 0 l 12 16 177 0.000 -0.253 0.007
$ ntptime
ntp_gettime() returns code 0 (OK)
time cc4051a2.10e9c44c Sun, Aug 3 2008 10:47:46.066, (.066067277),
maximum error 1263 us, estimated error 4 us, TAI offset 0
ntp_adjtime() returns code 0 (OK)
modes 0x0 (),
offset -244.740 us, frequency 2.462 ppm, interval 1 s,
maximum error 1263 us, estimated error 4 us,
status 0x2001 (PLL,NANO),
time constant 4, precision 0.001 us, tolerance 500 ppm,
This is comparable to linux-2.6.26 patched with ntp-pps-2.6.26.diff
running on the same hardware.
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