On 2021-11-11 02:15, Thomas Munro wrote:
On Thu, Nov 11, 2021 at 1:15 PM Michael Paquier <mich...@paquier.xyz> wrote:
morepork uses 6.9 now, but it has been recently upgraded from 5.4 or
a version close to that, right?  I am wondering if 7.0 may help
regarding this issue.  Postgres is not wrong here.

I dunno.  Clocks on virtualised systems and even metal seem to be a
minefield of quirks and heuristics.  Some discussion, may or may not
be relevant:

https://marc.info/?l=openbsd-tech&m=161657532610882&w=2

Hm, interesting.


Some starter questions for Mikael would be: could you please check
which clock source it's using?,

It's disabling TSC:

cpu1: disabling user TSC (skew=-4465)

so it seems to be using the acpitimer?

acpitimer0 at acpi0: 3579545 Hz, 24 bits



is it under a hypervisor, and if so
which?,

VMWare ESXI 6.7 latest updates installed.

what is the CPU model?, what are other kernels choosing when
running as guests on the same hypervisor (if applicable)?

AMD Ryzen 5 3600X

Did
anything interesting happen on either the guest or host operating
system (if not bare metal) some time around 2021-11-10 21:59 CET?

Nope, not that I can see.


I'm no expert on this stuff but something tells me that a 124ms leap
needs a different explanation than the sub-µs difference reported
earlier...


It's running ntpd to keep time in sync if that matters?

/Mikael



Reply via email to