Jun 8 09:47:46 r001 ntpd[23319]: adjusting local clock by 0.875716s
Jun 8 09:51:26 r001 ntpd[23319]: adjusting local clock by 0.816038s
Note that the time shown is *not* the time being adjusted,
but the difference from true time.
I.e at first the offset is 0.87s and later it is only 0.81s so it is
slowly getting there.
Ok. Sorry to misunderstand the numbers.
I do some calculation in spreadsheet.
The skew is between -10.7 and 3.7 milliseconds/second.
The man page of adjtime says:
delta is positive, a larger increment than normal is used.
The skew used
to perform the correction is generally a fraction of one
percent. Thus,
An average correction of 10.7 milliseconds in 1 seconds during 4
minutes is larger than a "fraction of one percent". I wonder if my
understanding is correct, and why the skew is so fast.
And last question, is it a real problem ?
time: time in log file
adjusting: number in second in "adjusting by" message
unnamed column: delta in time and in off second
skew: speed of the correction.
time adjusting skew (ms/s)
00:14:04 0.161853
00:17:47 0.914204 223.00 0.752351 3.3738
00:21:30 0.912827 223.00 -0.001377 -0.0062
01:47:43 0.135143 5173.00 -0.777684 -0.1503
02:17:44 1.207917 1801.00 1.072774 0.5957
02:47:42 1.281030 1798.00 0.073113 0.0407
03:17:41 0.356476 1799.00 -0.924554 -0.5139
03:47:42 0.429416 1801.00 0.072940 0.0405
03:51:22 0.213789 220.00 -0.215627 -0.9801
03:58:06 -0.164806 404.00 -0.378595 -0.9371
04:17:44 0.507832 1178.00 0.672638 0.5710
04:49:11 1.575442 1887.00 1.067610 0.5658
05:17:43 0.660218 1712.00 -0.915224 -0.5346
05:47:44 0.728825 1801.00 0.068607 0.0381
06:17:39 0.798930 1795.00 0.070105 0.0391
06:22:00 0.240950 261.00 -0.557980 -2.1379
06:29:28 -0.242509 448.00 -0.483459 -1.0791
06:33:51 -0.164418 263.00 0.078091 0.2969
07:47:46 1.024516 4435.00 1.188934 0.2681
08:17:44 1.101519 1798.00 0.077003 0.0428
08:47:49 0.173583 1805.00 -0.927936 -0.5141
09:17:53 0.247539 1804.00 0.073956 0.0410
09:47:42 0.318959 1789.00 0.071420 0.0399
10:17:53 1.392653 1811.00 1.073694 0.5929
10:47:43 0.474007 1790.00 -0.918646 -0.5132
11:17:44 0.540287 1801.00 0.066280 0.0368
11:47:45 -0.375363 1801.00 -0.915650 -0.5084
11:51:34 -0.172898 229.00 0.202465 0.8841
12:17:41 0.696666 1567.00 0.869564 0.5549
12:21:22 0.520937 221.00 -0.175729 -0.7952
12:25:03 -0.132391 221.00 -0.653328 -2.9562
12:36:28 -0.429008 685.00 -0.296617 -0.4330
12:47:44 0.764023 676.00 1.193031 1.7648
12:50:50 0.759465 186.00 -0.004558 -0.0245
13:17:45 0.844410 1615.00 0.084945 0.0526
13:22:01 0.426703 256.00 -0.417707 -1.6317
13:25:38 -0.218589 217.00 -0.645292 -2.9737
13:32:25 -0.390765 407.00 -0.172176 -0.4230
13:47:43 0.925055 918.00 1.315820 1.4334
15:17:46 0.150131 5403.00 -0.774924 -0.1434
15:47:46 0.212621 1800.00 0.062490 0.0347
16:17:47 0.296601 1801.00 0.083980 0.0466
16:47:45 0.373255 1798.00 0.076654 0.0426
17:17:48 0.444087 1803.00 0.070832 0.0393
17:47:45 0.519118 1797.00 0.075031 0.0418
18:17:47 0.594991 1802.00 0.075873 0.0421
18:47:49 0.666787 1802.00 0.071796 0.0398
18:50:50 0.663644 181.00 -0.003143 -0.0174
19:17:40 -0.262104 1610.00 -0.925748 -0.5750
19:21:54 -0.143448 254.00 0.118656 0.4671
19:47:43 0.815742 1549.00 0.959190 0.6192
19:51:29 0.805368 226.00 -0.010374 -0.0459
19:55:34 -0.401787 245.00 -1.207155 -4.9272
19:59:53 -0.688805 259.00 -0.287018 -1.1082
20:01:11 -0.398660 78.00 0.290145 3.7198
20:17:45 0.889891 994.00 1.288551 1.2963
20:21:45 0.637197 240.00 -0.252694 -1.0529
20:26:06 -0.410787 261.00 -1.047984 -4.0153
20:28:58 -0.505440 172.00 -0.094653 -0.5503
20:31:34 -0.208699 156.00 0.296741 1.9022
20:37:11 0.402252 337.00 0.610951 1.8129
20:47:42 0.964681 631.00 0.562429 0.8913
20:51:24 0.960566 222.00 -0.004115 -0.0185
21:02:36 -0.873072 672.00 -1.833638 -2.7286
21:05:56 -0.527576 200.00 0.345496 1.7275
21:09:39 0.131954 223.00 0.659530 2.9575
21:17:42 1.033462 483.00 0.901508 1.8665
21:47:44 1.104782 1802.00 0.071320 0.0396
22:17:43 0.184729 1799.00 -0.920053 -0.5114
22:47:47 0.254301 1804.00 0.069572 0.0386
23:17:55 1.340637 1808.00 1.086336 0.6008
23:19:24 1.333598 89.00 -0.007039 -0.0791
23:23:33 -1.336042 249.00 -2.669640 -10.7214
23:26:58 -0.690752 205.00 0.645290 3.1478
23:47:42 0.408653 1244.00 1.099405 0.8838
23:51:12 0.354902 210.00 -0.053751 -0.2560
23:55:15 -0.357164 243.00 -0.712066 -2.9303
23:58:46 -0.138396 211.00 0.218768 1.0368
00:17:45 0.479970 1139.00 0.618366 0.5429
00:47:48 0.559100 1803.00 0.079130 0.0439
01:17:46 -0.371889 1798.00 -0.930989 -0.5178
01:47:45 0.701795 1799.00 1.073684 0.5968
02:17:41 -0.224176 1796.00 -0.925971 -0.5156
02:47:44 -0.151181 1803.00 0.072995 0.0405
04:17:45 1.065925 5401.00 1.217106 0.2253
04:47:45 0.143920 1800.00 -0.922005 -0.5122
05:17:40 1.219624 1795.00 1.075704 0.5993
05:47:48 0.292102 1808.00 -0.927522 -0.5130
06:17:46 0.364500 1798.00 0.072398 0.0403
06:47:45 0.439883 1799.00 0.075383 0.0419
07:17:41 0.513877 1796.00 0.073994 0.0412
07:47:43 0.585656 1802.00 0.071779 0.0398
08:17:42 0.661055 1799.00 0.075399 0.0419
08:47:44 -0.270700 1802.00 -0.931755 -0.5171
09:17:41 -0.191056 1797.00 0.079644 0.0443
09:47:46 0.875716 1805.00 1.066772 0.5910
09:51:26 0.816038 220.00 -0.059678 -0.2713
09:55:43 -0.320128 257.00 -1.136166 -4.4209
09:59:52 -0.695182 249.00 -0.375054 -1.5062
10:01:35 -0.338598 103.00 0.356584 3.4620
10:05:18 0.156039 223.00 0.494637 2.2181
Cordialement,
Jean-Girard Pailloncy
