Below is my loopstats file:

56432 37096.090 0.000000000 0.854 0.000001907 0.000000 5
56432 37193.357 -0.000498569 0.854 0.000176280 0.000000 5
56432 37356.388 -0.000635872 0.459 0.000171892 0.139789 5
56432 37581.427 -0.000141746 0.337 0.000237431 0.137653 5
56432 37587.427 0.000378025 0.346 0.000288265 0.128799 5
56432 37648.439 0.000090557 0.367 0.000288166 0.120711 5
56432 37681.446 0.000138788 0.384 0.000270093 0.113084 5
56432 37878.483 0.000253057 0.574 0.000255859 0.125340 6
56432 37980.503 0.000310133 0.604 0.000240183 0.117729 6
56432 37981.503 0.000062108 0.605 0.000241178 0.110125 6
56432 38181.541 0.000267599 0.656 0.000237011 0.104581 6
56432 38288.562 0.000076744 0.663 0.000231745 0.097866 6
56432 38487.600 0.000248682 0.711 0.000225139 0.093054 6
56432 38622.626 0.000181529 0.734 0.000211933 0.087435 7
56432 38667.636 0.000235950 0.737 0.000199176 0.081793 7
56432 38922.683 0.000130787 0.744 0.000189986 0.076562 7
56432 39022.703 0.000062301 0.746 0.000179358 0.071619 7
56432 39055.709 0.000129679 0.747 0.000169457 0.066994 7
56432 39321.759 0.000117023 0.754 0.000158575 0.062722 8
56432 39436.783 0.000060368 0.755 0.000149680 0.058672 8
56432 39701.839 0.000108307 0.757 0.000141035 0.054886 8
56432 39960.882 0.000098390 0.758 0.000131973 0.051344 8
56432 39992.889 0.000273934 0.759 0.000138172 0.048028 8
56432 40232.939 0.000179768 0.761 0.000133468 0.044935 8
56432 40793.041 0.000068011 0.763 0.000130951 0.042041 8
56432 41042.088 0.000315023 0.768 0.000150438 0.039360 8
56432 42105.292 0.000402223 0.794 0.000144059 0.037905 8
56432 42270.323 0.000482797 0.798 0.000137733 0.035496 8
56432 42530.373 0.000426830 0.805 0.000130348 0.033286 8
56432 42899.444 0.000269420 0.811 0.000134030 0.031206 8
56432 43161.497 0.000508422 0.819 0.000151191 0.029326 8
56432 43399.549 0.000251643 0.822 0.000168058 0.027461 8
56432 43694.611 0.000307997 0.828 0.000158461 0.025758 8
56432 44118.677 0.000434851 0.839 0.000154863 0.024406 8
56432 44220.697 0.000252018 0.840 0.000158629 0.022836 8
56432 44488.749 0.000447339 0.847 0.000163666 0.021510 8
56432 44673.784 0.000480608 0.853 0.000153547 0.020208 8
56432 44912.831 0.000409715 0.859 0.000145801 0.019015 8
56432 45015.969 0.000430309 0.861 0.000136578 0.017812 8
56432 45213.888 -0.000196347 0.859 0.000255752 0.016681 8
56432 45966.031 0.000035297 0.860 0.000252864 0.015614 8
56432 46058.049 0.000027214 0.861 0.000236550 0.014606 8
56432 46327.101 0.000361439 0.866 0.000250848 0.013815 8
56432 46522.137 0.000271551 0.870 0.000236789 0.012971 8
56432 46782.191 0.000165535 0.872 0.000224645 0.012167 8
56432 47140.257 0.000416501 0.881 0.000228101 0.011807 8
56432 47387.303 0.000423688 0.887 0.000213384 0.011262 8
56432 47651.354 0.000353615 0.893 0.000201134 0.010717 8
56432 48099.439 0.000226026 0.899 0.000193476 0.010250 8
56432 48178.455 0.000221129 0.900 0.000180989 0.009595 8
56432 48466.510 0.000226354 0.904 0.000169309 0.009080 8
56432 48892.591 0.000153276 0.908 0.000160468 0.008604 8
56432 49155.642 -0.000035150 0.907 0.000164223 0.008051 8
56432 49411.691 -0.000094805 0.906 0.000155058 0.007548 8
56432 49533.714 0.000134980 0.907 0.000166246 0.007069 8
56432 49673.741 0.000094168 0.907 0.000156177 0.006618 8
56432 49868.778 0.000137419 0.909 0.000146888 0.006217 8
56432 50216.845 0.000273504 0.915 0.000145582 0.006151 8
56432 50582.917 0.000164664 0.918 0.000141512 0.005892 8
56432 50854.967 0.000159718 0.921 0.000132384 0.005587 8
56432 50870.974 0.000029843 0.921 0.000132073 0.005227 8
56432 51124.019 -0.000040755 0.920 0.000126039 0.004894 8
56432 51408.074 0.000281570 0.925 0.000163972 0.004878 8
56432 51657.121 0.000271494 0.929 0.000153423 0.004780 8
56432 52077.201 0.000375792 0.939 0.000148176 0.005573 8
56432 52210.226 0.000174071 0.940 0.000155878 0.005236 8
56432 52337.251 0.000309136 0.942 0.000153431 0.004967 8
56432 52601.301 0.000078924 0.944 0.000164994 0.004667 8
56432 52867.352 0.000372073 0.949 0.000185909 0.004838 8
56432 53136.404 0.000269549 0.954 0.000177640 0.004777 8
56432 53504.474 0.000191223 0.958 0.000168458 0.004708 8
56432 53696.513 0.000163946 0.960 0.000157873 0.004453 8
56432 53949.560 0.000075452 0.961 0.000150955 0.004185 8
56432 54229.613 0.000146821 0.963 0.000143442 0.004010 8
56432 54456.656 0.000098193 0.965 0.000135275 0.003780 8
56432 54718.706 0.000171201 0.967 0.000129144 0.003660 8
56432 54986.758 0.000151420 0.970 0.000121005 0.003529 8
56432 55257.810 0.000102694 0.971 0.000114494 0.003353 8
56432 55524.861 0.000183851 0.974 0.000110876 0.003302 8
56432 55788.912 0.000036062 0.975 0.000116133 0.003095 8
56432 56170.985 0.000172002 0.979 0.000118790 0.003210 8
56432 56260.002 0.000093597 0.979 0.000114523 0.003007 8
56432 56578.062 0.000242474 0.984 0.000119359 0.003249 8
56432 56791.104 0.000306552 0.988 0.000113926 0.003336 8
56432 56877.120 0.000193506 0.989 0.000113816 0.003140 8
56432 57146.172 0.000234188 0.993 0.000107433 0.003223 8
56432 57221.187 0.000108180 0.993 0.000109926 0.003020 8
56432 57503.240 0.000023851 0.993 0.000107062 0.002829 8
56432 57689.275 0.000067595 0.994 0.000101334 0.002659 8
56432 57960.329 0.000094838 0.996 0.000095278 0.002546 8
56432 58308.399 0.000032919 0.996 0.000091773 0.002393 8
56432 58725.476 0.000078545 0.998 0.000087349 0.002343 8
56432 58758.486 -0.000108934 0.998 0.000105212 0.002193 8
56432 58850.502 0.000103938 0.999 0.000123896 0.002061 8
56432 59090.544 0.000068852 1.000 0.000116556 0.001959 8
56432 59451.613 0.000138397 1.003 0.000111766 0.002114 8
56432 59616.645 0.000243010 1.005 0.000110897 0.002150 8
56432 59905.707 0.000123906 1.007 0.000111956 0.002148 8
56432 59974.713 0.000208974 1.008 0.000108959 0.002032 8
56432 60239.764 -0.000063145 1.007 0.000140157 0.001933 8
56432 60370.789 0.000176644 1.008 0.000156128 0.001873 8
56432 60610.836 -0.000067311 1.008 0.000169612 0.001785 8
56432 60988.907 -0.000036894 1.007 0.000159022 0.001695 8
56432 60995.907 -0.000086594 1.007 0.000149785 0.001586 8
56432 61263.959 -0.000262981 1.002 0.000153363 0.002099 8
56432 61480.003 -0.000089409 1.001 0.000156032 0.002005 8
56432 61879.079 0.000079005 1.003 0.000157633 0.001990 8
56432 62280.154 0.000254030 1.009 0.000159911 0.002841 8
56432 62514.199 0.000281317 1.013 0.000149894 0.002998 8
56432 62544.205 0.000337373 1.014 0.000141606 0.002813 8
56432 62776.249 0.000108926 1.015 0.000155143 0.002684 8
56432 63111.314 0.000198659 1.019 0.000148550 0.002876 8
56432 63380.365 0.000249795 1.023 0.000140127 0.003040 8
56432 63516.392 0.000279201 1.026 0.000131488 0.002954 8
56432 63905.466 0.000313190 1.033 0.000123582 0.003772 8
56432 64169.515 0.000089569 1.034 0.000140051 0.003563 8
56432 64345.550 0.000043873 1.035 0.000131998 0.003337 8
56432 64526.584 0.000242494 1.037 0.000142045 0.003256 8
56432 64797.637 0.000181295 1.040 0.000134621 0.003217 8
56432 65069.688 0.000041171 1.041 0.000135321 0.003018 8
56432 65237.720 0.000143173 1.042 0.000131618 0.002868 8
56432 65427.760 0.000073796 1.043 0.000125537 0.002699 8
56432 65695.808 -0.000049883 1.042 0.000125306 0.002541 8
56432 66138.894 -0.000027577 1.042 0.000117478 0.002391 8
56432 66561.975 -0.000074307 1.040 0.000111126 0.002332 8
56432 66767.014 0.000201777 1.042 0.000142594 0.002349 8
56432 67036.065 0.000108803 1.044 0.000137376 0.002282 8
56432 67190.094 0.000071266 1.045 0.000129187 0.002148 8
56432 67327.121 0.000168563 1.046 0.000125644 0.002067 8
56432 67451.146 0.000073987 1.047 0.000122193 0.001943 8
56432 67873.229 0.000000610 1.047 0.000117208 0.001818 8
56432 68116.273 -0.000054530 1.046 0.000111358 0.001723 8
56432 68258.299 -0.000025311 1.046 0.000104677 0.001613 8
56432 68447.338 -0.000010120 1.045 0.000098063 0.001510 8
56432 68679.401 -0.000015061 1.045 0.000091747 0.001414 8
56432 68905.496 0.000075256 1.046 0.000091569 0.001371 8
56432 69053.451 -0.000085121 1.045 0.000102723 0.001309 8
56432 69251.489 -0.000180278 1.043 0.000101808 0.001437 8
56432 69384.514 0.000327300 1.046 0.000203159 0.001628 8
56432 69580.553 0.000425407 1.051 0.000193178 0.002325 8
56432 69642.564 -0.000372410 1.050 0.000334988 0.002229 8
56432 70016.642 0.000444227 1.059 0.000426089 0.004075 8
56432 70207.672 0.000379089 1.064 0.000399235 0.004106 8
56432 70385.706 0.000766143 1.072 0.000397732 0.004797 8
56432 70591.746 0.000455990 1.077 0.000387868 0.004904 8
56432 70765.785 0.000414332 1.082 0.000363116 0.004832 8
56432 71068.837 0.000174693 1.085 0.000350071 0.004656 8
56432 71330.936 -0.000098945 1.083 0.000341454 0.004389 8
56432 71547.932 -0.000086786 1.082 0.000319430 0.004125 8
56432 71789.978 0.000146704 1.084 0.000309993 0.003930 8
56432 72093.034 -0.000201535 1.081 0.000315028 0.003895 8
56432 72331.079 -0.000266342 1.077 0.000295571 0.003881 8
56432 72592.129 -0.000191130 1.074 0.000277757 0.003779 8
56432 72789.168 -0.000166024 1.072 0.000259970 0.003602 8
56432 72934.209 -0.000070023 1.071 0.000245537 0.003376 8
56432 73340.275 -0.000163612 1.067 0.000232050 0.003454 8
56432 73394.282 -0.000166916 1.067 0.000217066 0.003237 8
56432 73664.335 0.000036980 1.068 0.000215464 0.003035 8
56432 74135.424 -0.000134512 1.064 0.000210470 0.003137 8
56432 74195.437 0.000032668 1.064 0.000205558 0.002935 8
56432 74462.487 -0.000159677 1.061 0.000203953 0.002889 8
56432 74494.494 -0.000093734 1.061 0.000192200 0.002703 8
56432 74762.544 0.000009260 1.061 0.000183437 0.002529 8
56432 75225.637 -0.000128364 1.058 0.000178355 0.002677 8
56432 75365.659 -0.000284232 1.055 0.000175702 0.002640 8
56432 76095.801 -0.000501272 1.034 0.000181385 0.008097 8
56432 76138.812 -0.000447739 1.032 0.000170723 0.007585 8
56432 76401.858 -0.000318762 1.027 0.000166079 0.007312 8
56432 76628.903 -0.000181357 1.025 0.000162771 0.006894 8
56432 76806.935 -0.000199283 1.023 0.000152391 0.006492 8
56432 77071.986 0.000021737 1.023 0.000162562 0.006074 8
56432 77479.064 -0.000116562 1.020 0.000159731 0.005769 8
56432 77610.091 -0.000188130 1.019 0.000151542 0.005422 8
56432 77859.137 -0.000137210 1.017 0.000142893 0.005122 8
56432 78117.186 -0.000036177 1.016 0.000138355 0.004795 8
56432 78275.217 0.000120217 1.017 0.000140736 0.004504 8
56432 78451.251 -0.000111734 1.016 0.000155100 0.004233 8
56432 78901.336 0.000069003 1.018 0.000158532 0.004013 8
56432 78975.350 -0.000048623 1.018 0.000154014 0.003755 8
56432 79233.399 0.000092171 1.019 0.000152424 0.003548 8
56432 79451.443 0.000097515 1.021 0.000142592 0.003349 8
56432 79861.520 0.000117785 1.023 0.000133575 0.003294 8
56432 79974.541 0.000042651 1.024 0.000127741 0.003083 8
56432 80245.593 -0.000061922 1.023 0.000125080 0.002905 8
56432 80551.654 -0.000010904 1.023 0.000118383 0.002718 8
56432 80607.664 0.000246355 1.023 0.000143302 0.002559 8
56432 80816.703 -0.000077882 1.022 0.000176380 0.002419 8
56432 81125.762 0.000131575 1.025 0.000180846 0.002419 8
56432 81395.824 0.000037081 1.025 0.000172433 0.002273 8
56432 81440.821 0.000048631 1.026 0.000161348 0.002126 8
56432 81708.873 0.000019280 1.026 0.000151284 0.001992 8
56432 82116.956 0.000005636 1.026 0.000141595 0.001864 8
56432 82490.023 0.000074462 1.028 0.000134667 0.001839 8
56432 82752.075 -0.000039200 1.027 0.000132224 0.001734 8
56432 83073.134 0.000051056 1.028 0.000127734 0.001658 8
56432 83257.181 -0.000228589 1.026 0.000155086 0.001787 8
56432 83434.205 -0.000334489 1.022 0.000149823 0.002086 8
56432 83697.254 -0.000129159 1.020 0.000157833 0.002078 8
56432 83955.303 -0.000000293 1.020 0.000154509 0.001944 8
56432 84298.370 0.000001306 1.020 0.000144532 0.001818 8
56432 84536.414 -0.000043359 1.019 0.000136116 0.001715 8
56432 84852.476 0.000114990 1.022 0.000139090 0.001777 8
56432 85032.509 0.000049897 1.022 0.000132126 0.001673 8
56432 85385.580 0.000162893 1.026 0.000129889 0.001980 8
56432 85605.619 0.000106776 1.027 0.000123109 0.001917 8
56432 85899.676 0.000353078 1.033 0.000144376 0.002828 8
56432 86171.731 0.000195111 1.036 0.000146144 0.002872 8
56432 86372.766 0.000182964 1.038 0.000136773 0.002796 8

> -----Original Message-----
> From: questions-bounces+edward.mischanko=arcelormittal....@lists.ntp.org
> [mailto:questions-
> bounces+edward.mischanko=arcelormittal....@lists.ntp.org] On Behalf Of
> David Woolley
> Sent: Monday, May 20, 2013 8:13 AM
> To: questions@lists.ntp.org
> Subject: Re: [ntp:questions] Tighter regulation?
> 
> Mischanko, Edward T wrote:>
> > The particular client I am monitoring is on an extremely stable
> corporate
> > LAN.  The servers are on the same LAN.  Changes in network propagation
> > are minimal.
> 
> On the other hand, it is on Windows, which doesn't have very stable time
> measurement.
> 
> >
> > The 8 stage minimum delay filter is exactly what I am seeing and exactly
> > what I would like to disable.  When polling above 256 seconds the amount
> > of time it takes to make an adjustment is excessive.  Setting maxpoll to
> > 8 does help, but that defeats what server administrators like to have to
> > reduce loading, on a grand scheme.
> 
> Defeating this will not have a large effect if you really do have very
> consistent measurement errors, as the polling over samples compared with
> the needs of the loop filter.  If measurement errors are variable, it
> will degrade the performance.
> >
> > I am not sure what jitter will do, but what good is low jitter at the
> > expense of poor offset correction?
> >
> Increased jitter means that your offset measurements span a wider range
> of values.
> 
> I think you need to provide:
> 
> 1) a tabulation of the raw offset values, including signs;
> 2) an analysis of the breakdown of errors between the crystal frequency,
> Windows load related errors, and network load related error.
> 
> It is important to understand that offset is time error + measurement
> error, and in the steady state, measurement error will be the dominant
> component.
> 
> _______________________________________________
> questions mailing list
> questions@lists.ntp.org
> http://lists.ntp.org/listinfo/questions
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