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- To: chrony-dev@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-dev] SW/HW timestamping on Linux
- From: Denny Page <dennypage@xxxxxx>
- Date: Thu, 10 Nov 2016 14:38:04 -0800
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Things are working quite well with software timestamping.
This is from my monitoring system:
210 Number of sources = 6
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^? 192.168.230.240 1 0 377 0 +295ns[ +295ns] +/- 19us
^? 192.168.230.244 1 0 377 1 +214ns[ +227ns] +/- 19us
^* 192.168.230.245 1 0 377 1 +577ns[ +590ns] +/- 16us
=? 192.168.230.1 2 3 377 5 -5142ns[-5127ns] +/- 1380us
=? 192.168.230.2 2 1 377 2 +549ns[ +549ns] +/- 58us
=? 192.168.225.10 2 1 377 28 -25us[ -25us] +/- 149us
210 Number of sources = 6
Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
==============================================================================
192.168.230.240 40 21 53 +0.000 0.004 -370ns 105ns
192.168.230.244 62 35 89 -0.001 0.002 -430ns 108ns
192.168.230.245 46 23 60 +0.000 0.004 +0ns 126ns
192.168.230.1 42 20 330 -0.009 0.010 -1152ns 1662ns
192.168.230.2 38 20 98 +0.014 0.023 +742ns 1163ns
192.168.225.10 29 15 1083 -0.007 0.009 +33us 4906ns
[NB: 192.168.230.245 is the directly attached unit]
And this is from my general (busy) server:
210 Number of sources = 5
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^* 192.168.230.240 1 0 377 0 +2164ns[+2167ns] +/- 23us
^? 192.168.230.244 1 0 377 0 +601ns[ +604ns] +/- 22us
=? 192.168.230.1 2 3 377 8 -3633ns[-3586ns] +/- 1151us
=? 192.168.230.3 2 1 377 2 +295ns[ +298ns] +/- 62us
=? 192.168.225.10 2 1 377 2 -19us[ -19us] +/- 145us
210 Number of sources = 5
Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
==============================================================================
192.168.230.240 64 30 90 +0.000 0.006 +0ns 355ns
192.168.230.244 64 26 79 -0.003 0.008 -297ns 401ns
192.168.230.1 16 6 121 -0.084 0.097 -8027ns 3564ns
192.168.230.3 64 32 142 -0.002 0.014 +154ns 1266ns
192.168.225.10 16 5 33 -0.004 0.204 -20us 1884ns
Denny
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