On 14/02/2007, at 9:59 PM, Jose Fragoso wrote:

Hi,

I just installed OpenBSD 4.0 on an IBM xSeries 336. I have noticed that, for
some reason,
I/O operations are not carried out as fast as one would expect for a machine
with SCSI
disks. For instance, the creation of a 50GB partion took a really long time.

thats very... vague...

where are you creating this 50G partitiong? in the installer, or in the installed operating system? what command did you use?

how long did it actually take? "a really long time" could be 5 seconds if you're expectations are too high.

The command
4tar xzvf ports.tar.gz4 took more than 14 minutes to finish. Something must be
wrong,
but I have no idea nor the knowledge to discover. I took a suggestion from a
old message
in the list and tried to run the .MP kernel, but it did not make any
difference.

that does seem excessive. can you watch the interrupt rates in the top right of "systat vm 1" and let me know what numbers you're seeing?


I also noticed that, at boot time, the process stops for quite a while at the
line:

ipmi0 at mainbus0:

the driver is doing a lot of probing to find what sensors are available via ipmi, the pause is normal.


I would be very thankful if someone could help me to isolate and solve this
problem.

Thanks in advance.

Regards,

Jose

ps. below is the output of dmesg.



OpenBSD 4.0 (GENERIC.MP) #936: Sat Sep 16 19:27:28 MDT 2006
    [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP
cpu0: Intel(R) Xeon(TM) CPU 3.20GHz ("GenuineIntel" 686-class) 3.21 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE3 6,CFLUS
H,
DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,CNXT-ID,CX16
real mem  = 1073094656 (1047944K)
avail mem = 970813440 (948060K)
using 4256 buffers containing 53755904 bytes (52496K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 01/17/05, BIOS32 rev. 0 @ 0xfd721,
SMBIOS rev. 2.3 @ 0xf602c (50 entries)
bios0: IBM eserver xSeries 336 -[883721U]-
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xffff
pcibios0: PCI BIOS has 11 Interrupt Routing table entries
pcibios0: PCI Exclusive IRQs: 9 10 11 15
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801EB/ER LPC" rev 0x00)
pcibios0: PCI bus #7 is the last bus
bios0: ROM list: 0xc0000/0xb000 0xcb000/0x4000
ipmi0 at mainbus0: version 1.5 interface KCS iobase 0xca8/8 spacing 4
mainbus0: Intel MP Specification (Version 1.4) (IBM ENSW X336 SMP    )
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 200 MHz
mainbus0: bus 0 is type PCI
mainbus0: bus 1 is type PCI
mainbus0: bus 2 is type PCI
mainbus0: bus 3 is type PCI
mainbus0: bus 4 is type PCI
mainbus0: bus 5 is type PCI
mainbus0: bus 6 is type PCI
mainbus0: bus 7 is type PCI
mainbus0: bus 8 is type ISA
ioapic0 at mainbus0: apid 14 pa 0xfec00000, version 20, 24 pins
ioapic1 at mainbus0: apid 13 pa 0xfec82000, version 20, 24 pins
ioapic2 at mainbus0: apid 12 pa 0xfec82400, version 20, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel E7520 MCH" rev 0x0a
"Intel E7520 MCH ERR" rev 0x0a at pci0 dev 0 function 1 not configured
ppb0 at pci0 dev 2 function 0 "Intel MCH PCIE" rev 0x0a
pci1 at ppb0 bus 2
ppb1 at pci0 dev 4 function 0 "Intel MCH PCIE" rev 0x0a
pci2 at ppb1 bus 3
ppb2 at pci2 dev 0 function 0 "Intel PCIE-PCIE" rev 0x09
pci3 at ppb2 bus 4
mpi0 at pci3 dev 1 function 0 "Symbios Logic 53c1030" rev 0x08: apic 13 int 4
(irq 11)
scsibus0 at mpi0: 16 targets
sd0 at scsibus0 targ 0 lun 0: <IBM-ESXS, MAW3300NC FN, C206> SCSI2 0/direct
fixed
sd0: 286102MB, 78753 cyl, 8 head, 930 sec, 512 bytes/sec, 585937500 sec total safte0 at scsibus0 targ 8 lun 0: <IBM, 25P3495a S320 1, 1> SCSI2 3/ processor
fixed
mpi0: target 0 Sync at 160MHz width 16bit offset 127 QAS 0 DT 1 IU 1
ppb3 at pci2 dev 0 function 2 "Intel PCIE-PCIE" rev 0x09
pci4 at ppb3 bus 5
ppb4 at pci0 dev 6 function 0 "Intel MCH PCIE" rev 0x0a
pci5 at ppb4 bus 6
bge0 at pci5 dev 0 function 0 "Broadcom BCM5721" rev 0x01, BCM5750 A1
(0x4001):
apic 14 int 16 (irq 11), address 00:0d:60:99:a3:b2
brgphy0 at bge0 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0
ppb5 at pci0 dev 7 function 0 "Intel MCH PCIE" rev 0x0a
pci6 at ppb5 bus 7
bge1 at pci6 dev 0 function 0 "Broadcom BCM5721" rev 0x01, BCM5750 A1
(0x4001):
apic 14 int 16 (irq 11), address 00:0d:60:99:a3:b3
brgphy1 at bge1 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0
"Intel E7525 MCH Configuration" rev 0x0a at pci0 dev 8 function 0 not
configured
uhci0 at pci0 dev 29 function 0 "Intel 82801EB/ER USB" rev 0x02: apic 14 int
16 (irq 11)
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, 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: apic 14 int
19 (irq 3)
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7 "Intel 82801EB/ER USB2" rev 0x02: apic 14 int
23 (irq 5)
usb2 at ehci0: USB revision 2.0
uhub2 at usb2
uhub2: Intel EHCI root hub, rev 2.00/1.00, addr 1
uhub2: 4 ports with 4 removable, self powered
ppb6 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0xc2
pci7 at ppb6 bus 1
vga1 at pci7 dev 1 function 0 "ATI Radeon VE QY" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ichpcib0 at pci0 dev 31 function 0 "Intel 82801EB/ER LPC" rev 0x02
pciide0 at pci0 dev 31 function 2 "Intel 82801EB SATA" rev 0x02: DMA, channel
0 configured to compatibility, channel 1 configured to compatibility
atapiscsi0 at pciide0 channel 0 drive 0
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <HL-DT-ST, DVD-ROM GDR8083N, 0L02> SCSI0 5/cdrom
removable
cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
ichiic0 at pci0 dev 31 function 3 "Intel 82801EB/ER SMBus" rev 0x02: apic 14
int 17 (irq 3)
iic0 at ichiic0: disabled to avoid ipmi0 interactions
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
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>
spkr0 at pcppi0
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
biomask 0 netmask 0 ttymask 0
ioapic0: pin 16 shares different IPL interrupts (40..50), degraded
performance
pctr: user-level cycle counter enabled
uhub3 at uhub0 port 2
uhub3: Texas Instruments TUSB2046 hub, rev 1.10/1.25, addr 2
uhub3: 4 ports with 4 removable, self powered
uhub4 at uhub3 port 1
uhub4: Texas Instruments TUSB2046 hub, rev 1.10/1.25, addr 3
uhub4: 4 ports with 4 removable, self powered
uhidev0 at uhub3 port 2 configuration 1 interface 0
uhidev0: PS2/USB KVM PS2/USB KVM, rev 1.10/1.00, addr 4, iclass 3/1
ukbd0 at uhidev0: 8 modifier keys, 6 key codes
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub3 port 2 configuration 1 interface 1
uhidev1: PS2/USB KVM PS2/USB KVM, rev 1.10/1.00, addr 4, iclass 3/1
ums0 at uhidev1: 5 buttons and Z dir.
wsmouse1 at ums0 mux 0
dkcsum: sd0 matches BIOS drive 0x80
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02

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