[ntp:questions] Performance estimation

Miroslav Lichvar mlichvar at redhat.com
Mon Jun 15 07:33:10 UTC 2020


On 2020-06-14, David Taylor <david-taylor at blueyonder.co.uk.invalid> wrote:
> When using the ntpq -crv command, which is the better measure of system 
> performance - clk_jitter or sys_jitter?  I've look for the definitions 
> and I'm thinking sys_jitter but perhaps someone could please remind me 
> of the difference?

clk_jitter seems to be the jitter of the system clock as it is being
updated with offsets, and sys_jitter seems to be the jitter of the
selected peer, or the combined peers after clustering.

https://www.eecis.udel.edu/~mills/ntp/html/cluster.html

-- 
Miroslav Lichvar



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