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

[email protected] Wed, 27 May 2026 00:04:59 +0000
Newsgroups gmane.os.freebsd.devel.ppc
Message-ID <[email protected]/bugzilla/>
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D271826

--- Comment #72 from Michael Tuexen <[email protected]> ---
(In reply to Michael Tuexen from comment #70)
Just to clear: tested on
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Copyright (c) 1992-2026 The FreeBSD Project.
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        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 16.0-CURRENT #0 main-n286096-490c53e9353f: Mon May 25 15:43:22 UTC =
2026
=20=20=20
[email protected]:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERIC=
64
powerpc
FreeBSD clang version 21.1.8 (https://github.com/llvm/llvm-project.git
llvmorg-21.1.8-0-g2078da43e25a)
WARNING: WITNESS option enabled, expect reduced performance.
mmu_oea64: HW does not support mixed 4KB/16MB page sizes. Disabling
superpages...
VT(ofwfb): resolution 1280x1024
cpu0: IBM PowerPC 970 revision 2.2, 1304.65 MHz
cpu0: Features dc000000<PPC32,PPC64,ALTIVEC,FPU,MMU>
cpu0: HID0 511081<NAP,DPM,NHR,TBEN,ENATTN>
real memory  =3D 4248473600 (4051 MB)
avail memory =3D 4006158336 (3820 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
...

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