[Bug 271826] FreeBSD is disastrously slow on a PowerMac G5, freezing at every command

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271826

            Bug ID: 271826
           Summary: FreeBSD is disastrously slow on a PowerMac G5,
                    freezing at every command
           Product: Base System
           Version: 13.2-RELEASE
          Hardware: powerpc
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: misc
          Assignee: bugs@FreeBSD.org
          Reporter: vital.had@gmail.com

Something is seriously wrong with FreeBSD implementation for PowerPC: it is
practically unusable as of now, freezing for more than a minute at every input.
Same behavior during installation and with installed system. Pattern is
consistent: you have a 1–2 seconds to type something or make a selection in a
menu, then everything freezes, after half a minute fans go high speed, that
condition lasts for another minute, then fans go back to normal, and system
unfreezes. It is not occasional, but happens literally at every window during
installation and every text command in the terminal.

Installation process is rather buggy and super-fragile too: I had random quits
in the middle a number or times; in the beginning when installer boots,
sometimes there are numerous USB-related errors, but sometimes they are
skipped.

I have tried it on two PowerMacs, both reasonably fast (G5 Quad 16 GB RAM SSD,
G5 2.3 DC 9 GB RAM SSD) – in MacOS I use them daily for development without any
pain. I also tried using HDD instead of SDD – nothing changed. Quad has ATI GPU
installed, while 2.3 has NVidia, if that matters.

I wanted to have FreeBSD as a second system to work on improvement of Macports
support for it (so that I can test my ports not only in MacOS but also in
FreeBSD). Hope someone can help to sort this issue out.

P. S. I am aware PowerPC is Tier II support, but this is a matter of system
simply being usable or not at all. It obviously should not be the case that it
takes several minutes to type in login and password with freezes every few
letters typed.

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