Re: timekeeping regression?

["Mathew, Cherry G.*" <c%bow.st@localhost>]

>>>>> Greg A Woods <woods%planix.ca@localhost> writes:

    > At Wed, 20 Mar 2024 03:31:00 +0000, "Mathew, Cherry G.*" <c%bow.st@localhost> wrote:
    > Subject: Re: timekeeping regression?
    >> 
    >> I think the problem here is that there's no clarity in the API
    >> about ownership. So we'll probably need to have a look at what
    >> linux and/or FreeBSD does, to understand what the current
    >> consensus is - this seems to be the linux way of documentation -
    >> a sort of mob rules situation.

    > Hmmm...  FreeBSD (14.0) is now the only domU system I have that's
    > been keeping time properly, even with the dom0 running on one
    > pinned CPU.

    > All the NetBSD systems have experienced large time drifts after
    > about 7 days of uptime.

    > So, yeah, FreeBSD is doing something right/better!

I don't believe FreeBSD has pure PV  - so all this seems to point to
SMP + PV and I'm mostly responsible for that.

I'll have a re-look once I get my teeth into the timekeeping code.

-- 
Math/(~cherry)