RE: [chrony-users] need help with large delays reported in ntpdata

["Dan Gearty" <dpgearty@xxxxxxxxxxxx>]

I get the same value for “NTP tests” for an NTP server on the same subnet.  But the peer delay is plausible, and the time performance is good. 

Not sure what could cause network delays like you are seeing outside of one of the servers being CPU bound or the network being saturated. 

 

# chronyc ntpdata | head -27

Remote address  : 192.168.50.230 (C0A832E6)

Remote port     : 123

Local address   : 192.168.50.1 (C0A83201)

Leap status     : Normal

Version         : 4

Mode            : Server

Stratum         : 1

Poll interval   : 6 (64 seconds)

Precision       : -25 (0.000000030 seconds)

Root delay      : 0.000000 seconds

Root dispersion : 0.000000 seconds

Reference ID    : 47505300 (GPS)

Reference time  : Sun Apr 04 01:11:14 2021

Offset          : -0.000024434 seconds

Peer delay      : 0.000593282 seconds

Peer dispersion : 0.000000070 seconds

Response time   : 0.000004822 seconds

Jitter asymmetry: +0.00

NTP tests       : 111 111 1101

Interleaved     : No

Authenticated   : No

TX timestamping : Daemon

RX timestamping : Kernel

Total TX        : 12224

Total RX        : 12224

Total valid RX  : 12224

 

# chronyc sources | head -3

MS Name/IP address         Stratum Poll Reach LastRx Last sample

===============================================================================

^* LeoNTP                        1   3   377    46  +8327ns[  +11us] +/-  289us

 

# chronyc sourcestats | head -3

Name/IP Address            NP  NR  Span  Frequency  Freq Skew  Offset  Std Dev

==============================================================================

LeoNTP                     20  12   630     +0.001      0.066    +58ns    16us

 

# chronyc -version

chronyc (chrony) version 4.0 (-READLINE -SECHASH +IPV6 -DEBUG)