Re: Giving a process absolute priority

Andy Ruhl <[email protected]> Fri, 17 Jun 2022 10:06:31 -0700
Newsgroups gmane.os.netbsd.ports.x86-64
Message-ID <CAJcb3fqEsrdkmMYF4TuQ1PuR5Y99EiyMFgtcm0PO4GwgUFsi_w@mail.gmail.com>
On Fri, Jun 17, 2022 at 8:19 AM Mouse <[email protected]> wrote:
>
> > [I]t is possible for the Xvnc process to be squeezed out briefly by
> > the scheduler, but not so briefly that remote clients do not notice
> > and get frustrated because a button has not responded in the way they
> > expect.
>
> I don't know whether this is plausible; you don't say what your basis
> is for thinking the issue is Xvnc getting scheduled out.  But it occurs
> to me that, unless you have some independent reason for thinking Xvnc
> is the problem, the actual problem might be nothing to do with Xvnc but
> rather a brief network hiccup leading to the VNC connection locking up
> until a retransmit timer fires and the underlying TCP connection picks
> up again.

Yeap. Wireshark it. If you can get a few examples of the problem, and
it's not obviously a network issue, you can still look at the timing
of responses to find system issues.

Andy