Hi,
I've just upgraded a (server) machine to 4.5, and now experience a
strange performance problem. The problem itself manifests in about
95-100% CPU usage (0-1% idle), permanently, without being able to see
much in top. This is distributed to about 8-25% system and the rest
almost exclusively user. The most CPU intensive process, as seen by
'top', consumes between some 0-5% CPU, the second most intensive
process consumes 0-1%, and the rest appears to use negligible amounts
of CPU. Disk I/O, according to systat, is less than 50KB per second,
and network I/O is less than 10KB/s, aggregated (mostly under 1KB/s).
In other words, the machine should be 90-100% idle.
The machine had no such problems while running 4.4.
What gives?
Kind regards,
--Toni++
OpenBSD 4.5 (GENERIC.MP) #108: Sat Feb 28 14:58:58 MST 2009
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC.MP
cpu0: Intel Pentium III ("GenuineIntel" 686-class, 512KB L2 cache) 552 MHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE
real mem = 536424448 (511MB)
avail mem = 510390272 (486MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 10/19/99, BIOS32 rev. 0 @ 0xf06b0, SMBIOS
rev. 2.3 @ 0xf1f70 (45 entries)
bios0: vendor Award Software, Inc. version "ASUS P3B-F ACPI BIOS Revision 1004"
date 10/19/1999
bios0: ASUSTeK Computer INC. P3B-F
apm0 at bios0: Power Management spec V1.2 (BIOS management disabled)
apm0: APM power management enable: unrecognized device ID (9)
apm0: APM engage (device 1): power management disabled (1)
apm0: AC on, battery charge unknown
acpi at bios0 function 0x0 not configured
pcibios0 at bios0: rev 2.1 @ 0xf0000/0xf12
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf0e70/160 (8 entries)
pcibios0: PCI Interrupt Router at 000:04:0 ("Intel 82371FB ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4c00 0xd0000/0x1000
cpu0 at mainbus0: (uniprocessor)
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x03
intelagp0 at pchb0
agp0 at intelagp0: aperture at 0xe4000000, size 0x4000000
ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "Matrox MGA G400/G450 AGP" rev 0x04
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
piixpcib0 at pci0 dev 4 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02
pciide0 at pci0 dev 4 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
pciide0: channel 0 disabled (no drives)
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <TOSHIBA, CD-ROM XM-6602B, 1017> ATAPI 5/cdrom
removable
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
uhci0 at pci0 dev 4 function 2 "Intel 82371AB USB" rev 0x01: irq 9
piixpm0 at pci0 dev 4 function 3 "Intel 82371AB Power" rev 0x02: SMI
iic0 at piixpm0
lm1 at iic0 addr 0x2d: AS99127F
gdt0 at pci0 dev 10 function 0 "Vortex GDT7x18RN" rev 0x00: irq 12 dpmem
e1000000 2-bus 2 cache devices
gdt0: ver 11b, cache on, strategy 2, writeback on, blksz 32
gdt0: raw feat 1 cache feat 101
scsibus1 at gdt0: 35 targets
sd0 at scsibus1 targ 0 lun 0: <ICP, Host drive #00, > SCSI2 0/direct fixed
sd0: 17500MB, 512 bytes/sec, 35841015 sec total
sd1 at scsibus1 targ 1 lun 0: <ICP, Host drive #01, > SCSI2 0/direct fixed
sd1: 35236MB, 512 bytes/sec, 72163980 sec total
scsibus2 at gdt0: 16 targets, initiator 7
scsibus3 at gdt0: 16 targets, initiator 7
fxp0 at pci0 dev 13 function 0 "Intel 8255x" rev 0x08, i82559: irq 9, address
00:90:27:8f:88:23
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4
isa0 at piixpcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
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
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
usb0 at uhci0: USB revision 1.0
uhub0 at usb0 "Intel UHCI root hub" rev 1.00/1.00 addr 1
biomask ff65 netmask ff65 ttymask ffff
mtrr: Pentium Pro MTRR support
softraid0 at root
root on sd0a swap on sd0b dump on sd0b
