| Re: [chrony-dev] Nanosecond timestamps |
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On Thu, Nov 03, 2016 at 01:38:25PM -0700, Denny Page wrote:
> I’m a little late to the party, but I thought it would be worth visually noting the positive impact that the nanosecond timestamp changes have had. The first graph is from a dedicated chrony monitoring system. The transition from 2.4 to the current version occurs midway though the graph. Nothing too dramatic, but still a noticeable improvement. The second graph is from a more active general server. The improvement here is much more significant.
Which offset do the graphs show? The one from statistics.log? The
improvement might be related also to the correction for asymmetric
jitter that was included recently.
> Thank you for all the hard work. I’m really looking forward to hardware timestamps. :)
I'm busy with other things right now, but I hope I'll have something
ready for testing soon. It's a lot of new code and I need to put it in
a better shape before I can push it to git. Anyway, here is how my
chronyc sources and sourcestats look right now :).
210 Number of sources = 1
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^* 192.168.100.1 1 1 377 1 +259ns[ +267ns] +/- 23us
210 Number of sources = 1
Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
==============================================================================
192.168.100.1 24 11 46 +0.000 0.009 +0ns 151ns
--
Miroslav Lichvar
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