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Author SHA1 Message Date
Miroslav Lichvar
98f79404d6 Allow selecting source only when last regression was successful 2010-12-15 17:48:30 +01:00
Miroslav Lichvar
eec438a614 Fix jitter test in source selection 
Distance should be compared to square root of variance.
 2010-12-15 14:25:40 +01:00
Miroslav Lichvar
c88801065f Divide regression weights by stddev instead of minimum distance 
This improves accuracy with large but stable network delays.
 2010-12-14 17:00:53 +01:00
Miroslav Lichvar
833022b745 Add small randomness to spacing between samples for one server 2010-12-09 16:06:42 +01:00
Miroslav Lichvar
d1b820e7e3 Shorten initial delay and sampling separation to 0.2 seconds 2010-12-09 15:14:05 +01:00
Miroslav Lichvar
4373918a2f Fix separation of timeouts scheduled for exactly the same time 2010-12-09 14:34:29 +01:00
Miroslav Lichvar
6e96b4ba33 Add reselect command 2010-12-07 16:47:58 +01:00
Miroslav Lichvar
2d326bfc48 Require password for clients command 2010-12-07 16:47:58 +01:00
Miroslav Lichvar
a6988b2a79 Update chronyc help text 2010-12-07 16:47:57 +01:00
Miroslav Lichvar
8b93e1a780 Slowly back off sampling rate when selected source loses connectivity 2010-12-07 16:47:57 +01:00
Miroslav Lichvar
4e318c1abc Require valid_header before accumulating sample 
Split test7 into two and to accumulate the sample require that all tests
pass, except the one which checks packet stratum is not higher than ours.

Also, don't mark the source as unreachable when only test4c fails.
 2010-12-07 16:47:57 +01:00
Miroslav Lichvar
3cb6840d2d Fix log file names in documentation 2010-12-07 16:47:57 +01:00
Miroslav Lichvar
6ed5a65064 Add maxdelaydevratio command 2010-12-07 16:47:57 +01:00
Miroslav Lichvar
b977c95be4 Add test for ratio of increase in delay to stddev 
Require that the ratio of the increase in delay from the minimum one in
the stats data register to the standard deviation of the offsets in the
register is less than maxdelaydevratio or the difference between
measured offset and predicted offset is larger than the increase in
delay. In the allowed delay increase is included also skew and maximum
clock frequency error.

maxdelaydevratio is 10.0 by default.
 2010-12-07 16:47:57 +01:00
Miroslav Lichvar
feb8811f37 Cache minimum peer delay in sourcestats 2010-12-03 17:25:50 +01:00
Miroslav Lichvar
0de82a70a6 Keep only absolute values of peer delays in sourcestats 
This saves some fabs() calls.
 2010-12-03 13:17:09 +01:00
Miroslav Lichvar
cc3a8918f0 Include maximum clock frequency error in our dispersion 
Add maxclockerror directive to set the stability of the clock (10 ppm by
default) and include it in our dispersion.
 2010-12-03 13:15:14 +01:00
Miroslav Lichvar
63ef2badd6 Fix printing of NP and NR over 99 in sourcestats 2010-12-01 14:32:26 +01:00
Miroslav Lichvar
e98080b8bb Use only 3 chars from refclock driver name in default refid 2010-11-30 18:18:28 +01:00
Miroslav Lichvar
bed5b72cbe Add polltarget command 2010-10-14 15:08:35 +02:00
Miroslav Lichvar
7ab2c0e4a5 Add logbanner directive 2010-10-13 17:50:22 +02:00
Miroslav Lichvar
7a6ee1d729 Base poll adjustment on number of sourcestats samples 
Instead of following skew changes, adjust polling interval so that the
number of measurements used in the regression algorithm remains close to
a target value. It can be configured with a new polltarget option
(6 by default).
 2010-10-13 16:49:28 +02:00
Miroslav Lichvar
d9596334c3 Move default source parameters to macros 2010-10-13 12:58:26 +02:00
Miroslav Lichvar
16676ae726 Add -m option to allow multiple commands on command line 2010-10-04 15:53:35 +02:00
Miroslav Lichvar
fd3702f973 Add retries and timeout commands 2010-10-04 15:00:07 +02:00
Miroslav Lichvar
d674d23b45 Adjust chronyc timeout 
Start at 1 second and increase it exponentially with maximum number of
attempts 3.
 2010-10-04 13:16:52 +02:00
Miroslav Lichvar
5b8835f46b Support prefer and noselect options in chronyc 2010-08-26 10:29:58 +02:00
Miroslav Lichvar
ddb2cf3b8b Merge code for adding NTP server and peer in cmdmon 2010-08-26 09:35:57 +02:00
Miroslav Lichvar
f924862e89 Add prefer and noselect options 2010-08-25 18:32:40 +02:00
Miroslav Lichvar
061d497df0 Fix crash when reloading history with zero samples 2010-08-25 18:32:40 +02:00
Miroslav Lichvar
3a222336d7 Fix reloading sample histories with refclocks 2010-08-25 18:10:35 +02:00
Miroslav Lichvar
78300d018a Add minstratum command 2010-08-25 17:43:17 +02:00
Miroslav Lichvar
e95676f65f Document minstratum option 2010-08-25 17:43:15 +02:00
Benny Lyne Amorsen
c8fe69c956 Add minstratum option 
Stratum in received packets is raised to the configured minimum.
 2010-08-25 12:46:14 +02:00
Miroslav Lichvar
fe4b661fe7 Add -n option to allow using syslog without forking 2010-08-19 17:21:11 +02:00
Miroslav Lichvar
5344028c40 Use 5% critical region for number of runs 
This results in more samples used in regression and slightly improved
response with high jitters.
 2010-08-17 17:52:19 +02:00
Miroslav Lichvar
e591e3622b Extend runs test 
Double the number of samples that are used in the runs test. E.g. with 64
samples in regression the runs test will be tried over the 64 samples and
up to 64 previous samples. The minimum number of samples in now 4.

This improves the response with low-mid jitters by about 50%.
 2010-08-17 16:40:25 +02:00
Miroslav Lichvar
d8fc5fee0a Run configure tests with LDFLAGS 2010-08-17 12:31:03 +02:00
Miroslav Lichvar
eeb73b3670 Fix updating of best_single_sample 2010-08-16 16:44:49 +02:00
Miroslav Lichvar
2f2e524bc6 Don't use timezone parameter in gettimeofday and settimeofday calls 2010-08-12 14:43:26 +02:00
Miroslav Lichvar
6b0198c2d7 Replace all CROAK calls with assert or LOG_FATAL 
Remove croak() and use assert() or LOG_FATAL() everywhere. Hopefully
the problems with debugging mentioned in the croak() comment are long gone.
 2010-08-12 14:30:05 +02:00
Miroslav Lichvar
2a64b75893 Regenerate critical values for number of runs 
Generate more values to allow regression with 128 samples. Possibly a
different approach was used to generate the values, or the previous table
was actually using 11% critical region and had an extra value in the
12th place.
 2010-08-11 18:50:23 +02:00
Miroslav Lichvar
034e172033 Assert number of points in regress functions 2010-08-11 18:25:32 +02:00
Miroslav Lichvar
1faeb45063 Update offset correction errors only when needed 2010-08-11 17:16:16 +02:00
Miroslav Lichvar
fa84496423 Fix updating of nano slew offset correction error 2010-08-11 16:57:19 +02:00
Miroslav Lichvar
a3d47ffc81 Store sourcestats samples in circular buffer 
The samples now don't have to be moved when pruning the register.
 2010-08-10 16:39:52 +02:00
Miroslav Lichvar
d841c86a6e Cleanup sourcestats code a bit 2010-08-10 15:35:17 +02:00
Miroslav Lichvar
3b4e4b785d Change length of resid buffer to MAX_POINTS 2010-08-06 14:51:37 +02:00
Miroslav Lichvar
7ba6b617a1 Remove weights from sourcestats record 
Weights are calculated before each regression call, no need to store them.
 2010-08-06 14:39:09 +02:00
Miroslav Lichvar
100f732e20 Remove SST_DoUpdateRegression 
The function is not used anywhere and it requires weights to be stored
sourcestats.
 2010-08-06 14:36:56 +02:00