Re: Waiting for bufdaemon

On Wed, Jan 20, 2021 at 03:12:27PM +0200, Konstantin Belousov wrote:
> On Wed, Jan 20, 2021 at 01:56:57PM +0100, Rainer Hurling wrote:
> > Am 20.01.21 um 13:34 schrieb Konstantin Belousov:
> > > On Wed, Jan 20, 2021 at 01:17:51PM +0100, Rainer Hurling wrote:
> > >> Am 20.01.21 um 11:18 schrieb Konstantin Belousov:
> > >>> On Wed, Jan 20, 2021 at 11:02:21AM +0100, Jakob Alvermark wrote:
> > >>>> This patch hides the problem for me. The system seems to work better now.
> > >>>>
> > >>>> No waiting on reboot, and the webcam works better.
> > >>> I am curious what do you mean by the above reference to webcam.
> > >>> Can you explain it with more details, even if only the impressions?
> > >>
> > >> I should mention, that beside the already discussed timing problem with
> > >> bufdaemon, I also have problems with several apps:
> > >>
> > >>
> > >> After a high system load, several programs only react very slowly (e.g.
> > >> Firefox). Several dockable apps from WindowMaker, but also e.g. conky do
> > >> not update their windows anymore, they freeze. After some time, Firefox
> > >> updates its screen content only after switching back from another window ...
> > >>
> > >> When such frozen programs are killed and restarted, they run normally
> > >> again for an indefinite time before they freeze again.
> > >>
> > >> These symptoms completely disappeared, after I patched the Ryzen box as
> > >> suggested on 01/17:
> > > 
> > > Do you load latest microcode update from devcpu-data?
> > 
> > Yes, sysutils/devcpu-data is installed and the following to lines are in
> > /boot/loader.conf
> > 
> > cpu_microcode_load="YES"
> > cpu_microcode_name="/boot/firmware/intel-ucode.bin"
> > 
> > But isn't this just for Intel (i387 and amd64), not AMD cpus?
> You need microcode_update_enable="YES" in /etc/rc.conf for late microcode
> update.
> 
> I think that early boot update should work on AMD, bit for this you need to
> select and put right blob.  It is enough to load late to answer my question.

The early microcode loader still doesn't support AMD.  I did not do it
for lack of a test system at the time.