From: openbsd-misc (openbsd-miscwerf.ru)
Date: Sat Apr 02 2005 - 02:25:11 CST

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# sysctl hw.setperf hw.cpuspeed
hw.setperf=100
hw.cpuspeed=1399
# md5 -t |grep Time
Time = 0.640058 seconds
# sysctl hw.setperf=0
hw.setperf: 100 -> 0
# sysctl hw.setperf hw.cpuspeed
hw.setperf=0
hw.cpuspeed=1399
# md5 -t |grep Time Time = 0.640092 seconds

i use HP Compaq nx9030 and OpenBSD 3.7 snapshot
apm doesn't work too.. > apm0: AC on, battery charge unknown <

--- mine dmesg ---

OpenBSD 3.7 (GENERIC) #50: Sun Mar 20 00:01:57 MST 2005
    deraadti386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Pentium(R) M processor 1.40GHz ("GenuineIntel" 686-class)
1.40 GHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,SBF,EST,TM2
cpu0: Enhanced SpeedStep 1400 MHz (1340 mV) (not in table)
real mem = 233283584 (227816K)
avail mem = 206106624 (201276K)
using 2873 buffers containing 11767808 bytes (11492K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(e8) BIOS, date 08/18/04, BIOS32 rev. 0
0xfd740
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev 2.1 0xfd740/0x8c0
pcibios0: PCI IRQ Routing Table rev 1.0 0xfdf20/192 (10 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82371FB ISA" rev
0x00)
pcibios0: PCI bus #2 is the last bus
bios0: ROM list: 0xc0000/0xcc00! 0xcd000/0x1000 0xdf000/0x1000!
0xe0000/0x4000!
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82852GM Hub-PCI" rev 0x02
"Intel 82852GM Memory" rev 0x02 at pci0 dev 0 function 1 not configured
"Intel 82852GM Configuration" rev 0x02 at pci0 dev 0 function 3 not
configured
vga1 at pci0 dev 2 function 0 "Intel 82852GM AGP" rev 0x02: aperture at
0xe8000000, size 0x8000000
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
"Intel 82852GM AGP" rev 0x02 at pci0 dev 2 function 1 not configured
uhci0 at pci0 dev 29 function 0 "Intel 82801DB USB" rev 0x03: irq 10
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1 "Intel 82801DB USB" rev 0x03: irq 11
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2 "Intel 82801DB USB" rev
0x03pci_intr_map: no mapping for pin C
: couldn't map interrupt
ehci0 at pci0 dev 29 function 7 "Intel 82801DB USB" rev 0x03: irq 11
ehci0: EHCI version 1.0
ehci0: wrong number of companions (3 != 2)
ehci0: init failed, error=13
ppb0 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0x83
pci1 at ppb0 bus 1
rl0 at pci1 dev 0 function 0 "Realtek 8139" rev 0x10: irq 10 address
00:c0:9f:52:52:c4
rlphy0 at rl0 phy 0: RTL internal phy
cbb0 at pci1 dev 5 function 0 "Texas Instruments PCI1410 CardBus" rev
0x02pci_intr_map: no mapping for pin A
: couldn't map interrupt
iwi0 at pci1 dev 6 function 0 "Intel PRO/2200BG 3B" rev 0x05: irq 11,
address 00:0e:35:56:3d:c4
"Texas Instruments TSB43AB21 FireWire" rev 0x00 at pci1 dev 7 function 0
not configured
ichpcib0 at pci0 dev 31 function 0 "Intel 82801DBM LPC" rev 0x03:
SpeedStep
pciide0 at pci0 dev 31 function 1 "Intel 82801DBM IDE" rev 0x03: DMA,
channel 0 configured to compatibility, channel 1 configured to
compatibility
wd0 at pciide0 channel 0 drive 0: <IC25N020ATDA04-0>
wd0: 16-sector PIO, LBA, 19077MB, 39070080 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <PHILIPS, CDRW/DVD CDD5263, UH89> SCSI0
5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
"Intel 82801DB SMBus" rev 0x03 at pci0 dev 31 function 3 not configured
auich0 at pci0 dev 31 function 5 "Intel 82801DB AC97" rev 0x03: irq 5,
ICH4 AC97
ac97: codec id 0x43585430 (Conexant CX?????)
ac97: codec features reserved, headphone, 18 bit DAC, 18 bit ADC, No 3D
Stereo
audio0 at auich0
"Intel 82801DB Modem" rev 0x03 at pci0 dev 31 function 6 not configured
isa0 at ichpcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0 (mux 1 ignored for console): console keyboard, using
wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
npx0 at isa0 port 0xf0/16: using exception 16
biomask efdd netmask efdd ttymask ffdf
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
iwi0: device timeout

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