All,
I noticed a strange phenomenon on an older i386 system with a recent
snapshot (OpenBSD 3.7-current (GENERIC) #239: Tue Jul 12 10:50:06 MDT
2005). I have this snapshot running on two different machines, a
homebuilt 2.4GHz Celeron and a vintage Compaq Presario 9230. Both
dmesgs at the end.
The celeron works perfectly, but if I use top(1) or ps(1) on the
compaq, all CPU-usage percentages are 0.00% (even when stressing the
cpu with `md5 -t` or similar operations). Consequently, all processes
have consumed 0:00 TIME :
On the compaq :
$ time md5 -t
MD5 time trial. Processing 10000 10000-byte blocks...
Digest = 52e5f9c9e6f656f3e1800dfa5579d089
Time = 9.561183 seconds
Speed = 10458956.804822 bytes/second
0m9.60s real 0m0.00s user 0m0.00s system
On the celeron I get :
$ time md5 -t
MD5 time trial. Processing 10000 10000-byte blocks...
Digest = 52e5f9c9e6f656f3e1800dfa5579d089
Time = 0.410613 seconds
Speed = 243538319.536888 bytes/second
0m0.42s real 0m0.40s user 0m0.01s system
The only difference is in the hardware, perhaps some processor
feature, is MMX/SSE used for these types of calculations ?
Cheers,
Paul 'WEiRD' de Weerd
--- BEGIN dmesg compaq -----------------------------------------------
OpenBSD 3.7-current (GENERIC) #239: Tue Jul 12 10:50:06 MDT 2005
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium (P54C) ("GenuineIntel" 586-class) 121 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8
cpu0: F00F bug workaround installed
real mem = 58302464 (56936K)
avail mem = 45592576 (44524K)
using 737 buffers containing 3018752 bytes (2948K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(05) BIOS, date 02/13/96
apm0 at bios0: Power Management spec V1.1
apm0: AC on, battery charge unknown
apm0: flags 20101 dobusy 0 doidle 1
pcibios at bios0 function 0x1a not configured
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1000
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Opti 82C557 Host" rev 0x15
pcib0 at pci0 dev 1 function 0 "Opti 82C558 ISA" rev 0x11
"S3 Trio32/64" rev 0x43 at pci0 dev 2 function 0 not configured
vga1 at pci0 dev 4 function 0 "S3 Trio64V2/DX" rev 0x16
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
fxp0 at pci0 dev 5 function 0 "Intel 82557" rev 0x08, i82559: irq 11, address
00:90:27:90:66:f8
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4
pciide0 at pci0 dev 20 function 0 "Opti 82C621 IDE" rev 0x11: DMA
(unsupported), channel 0 wired to compatibility, channel 1 wired to
compatibility
wd0 at pciide0 channel 0 drive 0: <FUJITSU MPD3043AT>
wd0: 16-sector PIO, LBA, 4125MB, 8448300 sectors
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <SONY, CD-ROM CDU77E-Q, 1.2g> SCSI0 5/cdrom
removable
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
sb0 at isa0 port 0x220/24 irq 5 drq 1: dsp v3.01
midi0 at sb0: <SB MIDI UART>
audio0 at sb0
opl0 at sb0: model OPL3
midi1 at opl0: <SB Yamaha OPL3>
pcppi0 at isa0 port 0x61
midi2 at pcppi0: <PC speaker>
spkr0 at pcppi0
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask e74d netmask ef4d ttymask ffcf
pctr: 586-class performance counters and user-level cycle counter enabled
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
OpenBSD 3.7-current (GENERIC) #239: Tue Jul 12 10:50:06 MDT 2005
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel(R) Celeron(R) CPU 2.40GHz ("GenuineIntel" 686-class) 2.41 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,PNI,MWAIT,CNXT-ID
real mem = 535339008 (522792K)
avail mem = 481624064 (470336K)
using 4278 buffers containing 26869760 bytes (26240K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(3e) BIOS, date 05/26/04, BIOS32 rev. 0 @ 0xfb880
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
apm0: flags 70102 dobusy 1 doidle 1
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xdd04
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdc40/176 (9 entries)
pcibios0: PCI Exclusive IRQs: 5 10 11 12
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801EB/ER LPC" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0xa000! 0xcc000/0x1800
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel 82865G/PE/P CPU-I/0-1" rev 0x02
vga1 at pci0 dev 2 function 0 "Intel 82865G Video" rev 0x02: aperture at
0xf0000000, size 0x8000000
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
uhci0 at pci0 dev 29 function 0 "Intel 82801EB/ER USB" rev 0x02: irq 5
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 82801EB/ER USB" rev 0x02: irq 5
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 82801EB/ER USB" rev 0x02: irq 12
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3 at pci0 dev 29 function 3 "Intel 82801EB/ER USB" rev 0x02: irq 5
usb3 at uhci3: USB revision 1.0
uhub3 at usb3
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7 "Intel 82801EB/ER USB" rev 0x02: irq 10
usb4 at ehci0: USB revision 2.0
uhub4 at usb4
uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered
ppb0 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0xc2
pci1 at ppb0 bus 1
fxp0 at pci1 dev 8 function 0 "Intel PRO/100 VE" rev 0x02: irq 10, address
00:01:80:5f:96:d4
inphy0 at fxp0 phy 1: i82562ET 10/100 PHY, rev. 0
fxp1 at pci1 dev 9 function 0 "Intel 82557" rev 0x08, i82559: irq 11, address
00:90:27:d3:9e:04
inphy1 at fxp1 phy 1: i82555 10/100 PHY, rev. 4
ral0 at pci1 dev 10 function 0 "Ralink RT2560" rev 0x01: irq 12, address
00:80:5a:27:d4:0c
ral0: MAC/BBP RT2560 (rev 0x04), RF RT2525
ichpcib0 at pci0 dev 31 function 0 "Intel 82801EB/ER LPC" rev 0x02
pciide0 at pci0 dev 31 function 1 "Intel 82801EB/ER IDE" rev 0x02: DMA, channel
0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <Maxtor 6Y160P0>
wd0: 16-sector PIO, LBA48, 156334MB, 320173056 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
wd1 at pciide0 channel 1 drive 0: <Maxtor 6Y160P0>
wd1: 16-sector PIO, LBA48, 156334MB, 320173056 sectors
wd1(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5
"Intel 82801EB/ER SMBus" rev 0x02 at pci0 dev 31 function 3 not configured
auich0 at pci0 dev 31 function 5 "Intel 82801EB/ER AC97" rev 0x02: irq 11, ICH5
AC97
ac97: codec id 0x414c4720 (Avance Logic ALC650)
ac97: codec features 20 bit DAC, 18 bit ADC, Realtek 3D
audio0 at auich0
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: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
it0 at isa0 port 0x290/8: IT87
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom0: console
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
biomask f765 netmask ff65 ttymask ffe7
pctr: user-level cycle counter enabled
dkcsum: wd0 matched BIOS disk 80
dkcsum: wd1 matched BIOS disk 81
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
--- END dmesg celeron ------------------------------------------------
--
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