I was just given an HP machine that shows a little quirk in 'sysctl hw.setperf':
hw.machine=amd64 hw.model=Pentium(R) Dual-Core CPU E5200 @ 2.50GHz hw.ncpu=2 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=sd0,cd0 hw.diskcount=2 hw.cpuspeed=2493 hw.setperf=99 hw.vendor=Hewlett-Packard hw.product=HP Compaq dc7900 Ultra-Slim Desktop hw.serialno=2UA9461120 hw.uuid=32ef50ee-e109-de11-bbda-5548b4800026 hw.physmem=1015681024 hw.usermem=1015603200 hw.ncpufound=2 None of my other machines have ever shown hw.setperf=99; they always boot up at 100. It's not a problem, just a little quirk. The machine runs fine and SpeedSteps properly with apmd. Running 'sysctl hw.setperf=100' bumps up hw.cpuspeed to a displayed value of 2500. Has anyone seen this kind of behavior before? Full dmesg: OpenBSD 4.7-current (GENERIC.MP) #0: Thu Jul 8 00:30:22 EDT 2010 r...@testinstall:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 1015681024 (968MB) avail mem = 974798848 (929MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xe9f80 (67 entries) bios0: vendor Hewlett-Packard version "786G1 v01.23" date 12/11/2009 bios0: Hewlett-Packard HP Compaq dc7900 Ultra-Slim Desktop acpi0 at bios0: rev 0 acpi0: tables DSDT FACP APIC ASF! MCFG TCPA SLIC HPET acpi0: wakeup devices COM1(S4) COM2(S4) PCI0(S4) PEG1(S4) PEG2(S4) IGBE(S4) PCX1(S4) PCX2(S4) PCX5(S4) PCX6(S4) HUB_(S4) USB1(S3) USB2(S3) USB3(S3) USB4(S3) USB5(S3) USB6(S3) EUS1(S3) EUS2(S3) PBTN(S4) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz, 2494.08 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM,XSAVE,NXE,LONG cpu0: 2MB 64b/line 8-way L2 cache cpu0: apic clock running at 199MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz, 2493.73 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,SSSE3,CX16,xTPR,PDCM,XSAVE,NXE,LONG cpu1: 2MB 64b/line 8-way L2 cache ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 1 acpihpet0 at acpi0: 14318179 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PEG1) acpiprt2 at acpi0: bus -1 (PEG2) acpiprt3 at acpi0: bus 32 (PCX1) acpiprt4 at acpi0: bus -1 (PCX2) acpiprt5 at acpi0: bus 48 (PCX5) acpiprt6 at acpi0: bus -1 (PCX6) acpiprt7 at acpi0: bus 7 (HUB_) acpicpu0 at acpi0: C2, C1, PSS acpicpu1 at acpi0: C2, C1, PSS acpibtn0 at acpi0: PBTN cpu0: Enhanced SpeedStep 2493 MHz: speeds: 2500, 1800, 1200 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel Q45 Host" rev 0x03 vga1 at pci0 dev 2 function 0 "Intel Q45 Video" rev 0x03 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) intagp0 at vga1 agp0 at intagp0: aperture at 0xe0000000, size 0x10000000 inteldrm0 at vga1: apic 1 int 16 (irq 5) drm0 at inteldrm0 "Intel Q45 Video" rev 0x03 at pci0 dev 2 function 1 not configured "Intel Q45 HECI" rev 0x03 at pci0 dev 3 function 0 not configured pciide0 at pci0 dev 3 function 2 "Intel Q45 PT IDER" rev 0x03: DMA (unsupported), channel 0 wired to native-PCI, channel 1 wired to native-PCI pciide0: using apic 1 int 18 (irq 10) for native-PCI interrupt pciide0: channel 0 ignored (not responding; disabled or no drives?) pciide0: channel 1 ignored (not responding; disabled or no drives?) "Intel Q45 KT" rev 0x03 at pci0 dev 3 function 3 not configured em0 at pci0 dev 25 function 0 "Intel ICH10 D BM LM" rev 0x02: apic 1 int 19 (irq 5), address 00:26:55:48:b4:80 uhci0 at pci0 dev 26 function 0 "Intel 82801JD USB" rev 0x02: apic 1 int 20 (irq 10) uhci1 at pci0 dev 26 function 1 "Intel 82801JD USB" rev 0x02: apic 1 int 21 (irq 11) uhci2 at pci0 dev 26 function 2 "Intel 82801JD USB" rev 0x02: apic 1 int 22 (irq 5) ehci0 at pci0 dev 26 function 7 "Intel 82801JD USB" rev 0x02: apic 1 int 22 (irq 5) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 27 function 0 "Intel 82801JD HD Audio" rev 0x02: apic 1 int 21 (irq 11) azalia0: codecs: Analog Devices AD1884A audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 82801JD PCIE" rev 0x02: apic 1 int 20 (irq 10) pci1 at ppb0 bus 32 iwn0 at pci1 dev 0 function 0 "Intel WiFi Link 5100" rev 0x00: apic 1 int 16 (irq 5), MIMO 1T2R, MoW, address 00:1e:65:a4:df:96 ppb1 at pci0 dev 28 function 4 "Intel 82801JD PCIE" rev 0x02: apic 1 int 20 (irq 10) pci2 at ppb1 bus 48 uhci3 at pci0 dev 29 function 0 "Intel 82801JD USB" rev 0x02: apic 1 int 20 (irq 10) uhci4 at pci0 dev 29 function 1 "Intel 82801JD USB" rev 0x02: apic 1 int 21 (irq 11) uhci5 at pci0 dev 29 function 2 "Intel 82801JD USB" rev 0x02: apic 1 int 22 (irq 5) ehci1 at pci0 dev 29 function 7 "Intel 82801JD USB" rev 0x02: apic 1 int 20 (irq 10) usb1 at ehci1: USB revision 2.0 uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb2 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xa2 pci3 at ppb2 bus 7 pcib0 at pci0 dev 31 function 0 "Intel 82801JDO LPC" rev 0x02 ahci0 at pci0 dev 31 function 2 "Intel 82801JD AHCI" rev 0x02: apic 1 int 18 (irq 10), AHCI 1.2 scsibus0 at ahci0: 32 targets sd0 at scsibus0 targ 0 lun 0: <ATA, ST980412AS, B003> SCSI3 0/direct fixed sd0: 76319MB, 512 bytes/sec, 156301488 sec total cd0 at scsibus0 targ 1 lun 0: <hp, DV-28S-V, A.0F> ATAPI 5/cdrom removable usb2 at uhci0: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci1: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci2: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb5 at uhci3: USB revision 1.0 uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb6 at uhci4: USB revision 1.0 uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb7 at uhci5: USB revision 1.0 uhub7 at usb7 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 mtrr: Pentium Pro MTRR support uhidev0 at uhub4 port 2 configuration 1 interface 0 "Unicomp Endura Pro Keyboard" rev 1.10/43.34 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd0 at ukbd0: console keyboard, using wsdisplay0 uhidev1 at uhub4 port 2 configuration 1 interface 1 "Unicomp Endura Pro Keyboard" rev 1.10/43.34 addr 2 uhidev1: iclass 3/1, 3 report ids ums0 at uhidev1 reportid 1: 3 buttons, Z dir wsmouse0 at ums0 mux 0 uhid0 at uhidev1 reportid 2: input=2, output=0, feature=0 uhid1 at uhidev1 reportid 3: input=1, output=0, feature=0 vscsi0 at root scsibus1 at vscsi0: 256 targets softraid0 at root root on sd0a swap on sd0b dump on sd0b -- Joe Gidi j...@entropicblur.com