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| author | Eric S. Raymond <esr@thyrsus.com> | 2013-11-06 09:28:06 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2013-11-06 09:28:06 -0500 |
| commit | 8c5e661e42a753e08bae03d533bd4541f5d7d91b (patch) | |
| tree | 6ca69b924e35ca7a24ba9929e9a1ae421f5e9179 /www | |
| parent | c9c70454f443a15963a3beadc8a53b5e4df31a8d (diff) | |
| download | gpsd-8c5e661e42a753e08bae03d533bd4541f5d7d91b.tar.gz | |
Terminological adjustment.
Diffstat (limited to 'www')
| -rw-r--r-- | www/calibrate-gpsd-ntpd-howto.txt | 7 | ||||
| -rw-r--r-- | www/gpsd-time-service-howto.txt | 8 |
2 files changed, 8 insertions, 7 deletions
diff --git a/www/calibrate-gpsd-ntpd-howto.txt b/www/calibrate-gpsd-ntpd-howto.txt index e43e2101..83c05849 100644 --- a/www/calibrate-gpsd-ntpd-howto.txt +++ b/www/calibrate-gpsd-ntpd-howto.txt @@ -104,9 +104,10 @@ server 127.127.28.0 minpoll 4 maxpoll 4 noselect fudge 127.127.28.0 time1 0.420 refid GPS -------------------- -ntpd will now continue to monitor the in-band timestamps from GPSD, but not use -for its algorithm. It will write out statistics to the peerstats file. -Once ntpd is stable (a few hours or so), we can process the peerstats file. +ntpd will now continue to monitor the in-band message timestamps from +GPSD, but not use for its algorithm. It will write out statistics to +the peerstats file. Once ntpd is stable (a few hours or so), we can +process the peerstats file. ==== 2. Measuring the delay between the two messages ==== diff --git a/www/gpsd-time-service-howto.txt b/www/gpsd-time-service-howto.txt index de23b3f4..31439249 100644 --- a/www/gpsd-time-service-howto.txt +++ b/www/gpsd-time-service-howto.txt @@ -503,10 +503,10 @@ ntpd, if feasible. The magic pseudo-IP address 127.127.28.0 identifies unit 0 of the ntpd shared-memory driver; 127.127.28.1 identifies unit 1. Unit 0 is used -for message-decoded time and unit 1 for the (more accurate, when -available) time derived from combining message-decoded time with the -PPS synchronization pulse. Splitting these notifications allows ntpd -to use its normal heuristics to weight them. +for ine-band message timestamps and unit 1 for the (more accurate, +when available) time derived from combining in-band message timestamps +with the out-of-band PPS synchronization pulse. Splitting these +notifications allows ntpd to use its normal heuristics to weight them. (Different units - 2 and 3, respectively - must be used when gpsd is not started as root.) |