Oh that is interesting ...
# ntpctl -s all
0/1 sensors valid, clock unsynced
sensor
wt gd st next poll offset correction
vmmci0
1 0 0 13s 15s - sensor not valid -
sensor not valid - why would that happen?
I have no idea about the inner workings of vmd .. but maybe this host has
so many VMs that it is hitting some limit?
S.
On Fri, Nov 9, 2018 at 7:43 PM <j...@bitminer.ca> wrote:
>
> > I recently built a new vmm with 6.4 and noticed this morning that it
> > had
> > a clock problem too, however all my other vmm's didn't.
>
>
>
> FWIW, I don't have an issue with timekeeping on VMM clients on 6.4:
>
> # uptime
> 4:40PM up 4 days, 22:29, 1 user, load averages: 0.00, 0.00, 0.00
> # ntpctl -s all
> 1/1 sensors valid, clock synced, stratum 1
>
> sensor
> wt gd st next poll offset correction
> vmmci0
> * 1 1 0 15s 15s -0.227ms 0.000ms
>
> I have same kern.timecounter values as you. However I rely on NTP of
> the host
> to keep good time. The clients are simply:
>
> # ntpd.conf for our VMs
> #
> sensor *
>
> While ntpd.conf for the host is the default:
>
> #
> servers pool.ntp.org
> sensor *
> constraints from "https://www.google.com";
>
> And keeps time within a millisecond or so:
>
> $ ntpctl -s all
> 4/4 peers valid, constraint offset 0s, clock synced, stratum 4
>
> peer
> wt tl st next poll offset delay jitter
> 69.17.158.101 from pool pool.ntp.org
> 1 10 3 207s 329s -0.050ms 72.067ms 7.430ms
> 72.38.129.202 from pool pool.ntp.org
> 1 10 2 285s 317s 1.819ms 80.729ms 2.943ms
> 198.50.139.209 from pool pool.ntp.org
> 1 10 2 278s 322s -5.043ms 87.529ms 8.652ms
> 207.34.48.31 from pool pool.ntp.org
> * 1 10 3 1524s 1554s -0.425ms 30.868ms 3.349ms
>
>
>
> Host CPU is old AMD:
>
> OpenBSD 6.4 (GENERIC.MP) #364: Thu Oct 11 13:30:23 MDT 2018
> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: AMD E-450 APU with Radeon(tm) HD Graphics, 6421.62 MHz, 14-02-00
> cpu0:
>
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,IBS,SKINIT,ITSC
> cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB
> 64b/line 16-way L2 cache
> cpu0: 8 4MB entries fully associative
> cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully
> associative
> cpu0: smt 0, core 0, package 0
> cpu0: apic clock running at 199MHz
> cpu0: mwait min=64, max=64, IBE
>
>
> --John
>
>
