Dennis Glatting wrote on 31.12.2011 16:52:
Curios here.
My BIOS reports my CPU at 4,023 MHz but when FreeBSD boots it says
"3973.35-MHz." How is this determined? Seems like an off-by-one error
somewhere.
MB: ASUS Crosshair V FORMULA, latest BIOS, overclocked.
dmesg output:
Tasha> dmesg
Copyright (c) 1992-2011 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights
reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.2-STABLE #7: Fri Dec 30 18:15:12 PST 2011
root@Tasha:/disk-1/src/sys/amd64/compile/TASHA amd64
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD FX(tm)-8150 Eight-Core Processor (3973.35-MHz
K8-class CPU)
Origin = "AuthenticAMD" Id = 0x600f12 Family = 15 Model = 1
Stepping = 2
In your case you might want to take a look at the printcpuinfo function
in ${SRC_BASE}/sys/md64/amd64/identcpu.c for starters. Especially the
CPUCLASS_K8 case in the second switch statement.
MfG CoCo
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