2GM environment
Cluster version is 4.16.0-0.nightly-2024-04-08-024331
ptp-operator.v4.16.0-202404101645 (also tested w/dev build)

dpll is spiking in linuxptp-daemon log:

dpll[1712950145]:[ts2phc.2.config] ens7f0 frequency_status 3 offset 28147497 phase_status 3 pps_status 1 s2 I0412 19:29:06.000445  360305 event.go:417] dpll State s2, gnss State s2, tsphc state s2, gm state s2, I0412 19:29:06.502710  360305 dpll.go:363] setting phase offset to 0 ns for clock id 5799633565434117236 I0412 19:29:06.502733  360305 dpll.go:623] ens5f0-dpll decision: Status 3, Offset 0, In spec false, Source lost false, On holdover false I0412 19:29:06.502760  360305 dpll.go:727] dpll event sent for (ens5f0) I0412 19:29:06.502805  360305 stats.go:61] state updated for dpll =s2 dpll[1712950146]:[ts2phc.2.config] ens5f0 frequency_status 3 offset 0 phase_status 3 pps_status 1 s2 I0412 19:29:06.538516  360305 dpll.go:363] setting phase offset to 0 ns for clock id 5799633565434117476 I0412 19:29:06.538561  360305 dpll.go:623] ens7f0-dpll decision: Status 3, Offset 0, In spec true, Source lost false, On holdover false I0412 19:29:06.538574  360305 dpll.go:669] dpll is locked, source is not lost, offset is in range, state is DPLL_LOCKED_HO_ACQ or DPLL_HOLDOVER(ens7f0) I0412 19:29:06.538597  360305 dpll.go:727] dpll event sent for (ens7f0) I0412 19:29:06.538624  360305 stats.go:61] state updated for dpll =s2 dpll[1712950146]:[ts2phc.2.config] ens7f0 frequency_status 3 offset 0 phase_status 3 pps_status 1 s2 I0412 19:29:06.595877  360305 dpll.go:363] setting phase offset to 0 ns for clock id 5799633565434117236 I0412 19:29:06.595894  360305 dpll.go:623] ens5f0-dpll decision: Status 3, Offset 0, In spec false, Source lost false, On holdover false I0412 19:29:06.595906  360305 dpll.go:727] dpll event sent for (ens5f0) dpll[1712950146]:[ts2phc.2.config] ens5f0 frequency_status 3 offset 0 phase_status 3 pps_status 1 s2 I0412 19:29:06.595933  360305 stats.go:61] state updated for dpll =s2 I0412 19:29:06.646358  360305 dpll.go:363] setting phase offset to 0 ns for clock id 5799633565434117476 I0412 19:29:06.646453  360305 dpll.go:623] ens7f0-dpll decision: Status 3, Offset 0, In spec true, Source lost false, On holdover false I0412 19:29:06.646493  360305 dpll.go:669] dpll is locked, source is not lost, offset is in range, state is DPLL_LOCKED_HO_ACQ or DPLL_HOLDOVER(ens7f0)

These are metrics checked over the last couple of minutes:

[kni@registry.kni-qe-61 ~]$ oc exec -it ds/linuxptp-daemon  -n openshift-ptp -c linuxptp-daemon-container -- curl -s localhost:9091/metrics | grep clock_state
# HELP openshift_ptp_clock_state 0 = FREERUN, 1 = LOCKED, 2 = HOLDOVER
# TYPE openshift_ptp_clock_state gauge
openshift_ptp_clock_state{iface="CLOCK_REALTIME",node="helix60.lab.eng.rdu2.redhat.com",process="phc2sys"} 1
openshift_ptp_clock_state{iface="eno1239x",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 2
openshift_ptp_clock_state{iface="ens3f1npx",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 2
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 0
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="GM"} 0
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="gnss"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1
[kni@registry.kni-qe-61 ~]$ # HELP openshift_ptp_clock_state 0 = FREERUN, 1 = LOCKED, 2 = HOLDOVER
# TYPE openshift_ptp_clock_state gauge
openshift_ptp_clock_state{iface="CLOCK_REALTIME",node="helix60.lab.eng.rdu2.redhat.com",process="phc2sys"} 1
openshift_ptp_clock_state{iface="eno1239x",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 2
openshift_ptp_clock_state{iface="ens3f1npx",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 2
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="GM"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="gnss"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1# HELP openshift_ptp_clock_state 0 = FREERUN, 1 = LOCKED, 2 = HOLDOVER
# TYPE openshift_ptp_clock_state gauge
openshift_ptp_clock_state{iface="CLOCK_REALTIME",node="helix60.lab.eng.rdu2.redhat.com",process="phc2sys"} 1
openshift_ptp_clock_state{iface="eno1239x",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 1
openshift_ptp_clock_state{iface="ens3f1npx",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 0
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="GM"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="gnss"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1# HELP openshift_ptp_clock_state 0 = FREERUN, 1 = LOCKED, 2 = HOLDOVER
# TYPE openshift_ptp_clock_state gauge
openshift_ptp_clock_state{iface="CLOCK_REALTIME",node="helix60.lab.eng.rdu2.redhat.com",process="phc2sys"} 1
openshift_ptp_clock_state{iface="eno1239x",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 1
openshift_ptp_clock_state{iface="ens3f1npx",node="helix60.lab.eng.rdu2.redhat.com",process="ptp4l"} 1
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens5fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="GM"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="dpll"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="gnss"} 1
openshift_ptp_clock_state{iface="ens7fx",node="helix60.lab.eng.rdu2.redhat.com",process="ts2phc"} 1

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