I followed with great interest the recent thread on misc@
http://marc.theaimsgroup.com/?l=openbsd-misc&m=115620585301672&w=2
aboout bad write performance with the MegaRAID 320-2 card, since I was
also experiencing what I perceived to be slow write performance with the
same card.
Unlike Robert Urban, my set up is three sets of RAID 1 drives, using
Hitachi 10K disks. (dmesg follows).
Here are the results of a couple of tests that I ran with an LSI MegaRAID
320-2X with and without an onboard battery. I'd love to figure out why I
got no significant change with or without a battery.
bsd.mp with battery installed but not connected, write through, adaptive
read, direct I/O:
[EMAIL PROTECTED]:/home/jross $ dd if=/dev/zero of=/backup/test_file bs=64k
count=102400
102400+0 records in
102400+0 records out
6710886400 bytes transferred in 130.387 secs (51468680 bytes/sec)
bsd.mp with battery installed and connected, write back, adaptive read,
direct I/O:
[EMAIL PROTECTED]:/home/jross $ dd if=/dev/zero of=/backup/test_file bs=64k
count=102400
102400+0 records in
102400+0 records out
6710886400 bytes transferred in 132.209 secs (50759331 bytes/sec)
dmesg:
OpenBSD 4.0-beta (GENERIC.MP) #17: Thu Aug 24 16:48:07 MDT 2006
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP
cpu0: Intel(R) Xeon(TM) CPU 2.66GHz ("GenuineIntel" 686-class) 2.67 GHz
cpu0:
FPU,V86,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,CNXT-ID
real mem = 2146988032 (2096668K)
avail mem = 1950334976 (1904624K)
using 4256 buffers containing 107450368 bytes (104932K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 02/09/05, BIOS32 rev. 0 @
0xf0010, SMBIOS rev. 2.3 @ 0xf82a0 (48 entrie
s)
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf2ff0/224 (12 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801CA LPC" rev 0x00)
pcibios0: PCI bus #5 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1800 0xc9800/0x2200
mainbus0: Intel MP Specification (Version 1.4) (INTEL KingsCanyonC)
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 133 MHz
cpu1 at mainbus0: apid 6 (application processor)
cpu1: Intel(R) Xeon(TM) CPU 2.66GHz ("GenuineIntel" 686-class) 2.67 GHz
cpu1:
FPU,V86,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,CNXT-ID
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 ISA
ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins
ioapic1 at mainbus0: apid 9 pa 0xfec80000, version 20, 24 pins
ioapic2 at mainbus0: apid 10 pa 0xfec80400, version 20, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel E7501 MCH Host" rev 0x01
ppb0 at pci0 dev 2 function 0 "Intel E7500 MCH" rev 0x01
pci1 at ppb0 bus 2
"Intel 82870P2 IOxAPIC" rev 0x04 at pci1 dev 28 function 0 not configured
ppb1 at pci1 dev 29 function 0 "Intel 82870P2 PCIX-PCIX" rev 0x04
pci2 at ppb1 bus 5
"Intel 82870P2 IOxAPIC" rev 0x04 at pci1 dev 30 function 0 not configured
ppb2 at pci1 dev 31 function 0 "Intel 82870P2 PCIX-PCIX" rev 0x04
pci3 at ppb2 bus 3
ppb3 at pci3 dev 3 function 0 "IBM 133 PCIX-PCIX" rev 0x03
pci4 at ppb3 bus 4
ami0 at pci4 dev 0 function 0 "Symbios Logic MegaRAID 320" rev 0x02: apic
9 int 0 (irq 10)
ami0: LSI 532, 32b, FW 414C, BIOS vH429, 128MB RAM
ami0: 2 channels, 0 FC loops, 3 logical drives
scsibus0 at ami0: 40 targets
sd0 at scsibus0 targ 0 lun 0: <AMI, Host drive #00, > SCSI2 0/direct fixed
sd0: 69618MB, 69618 cyl, 64 head, 32 sec, 512 bytes/sec, 142577664 sec
total
sd1 at scsibus0 targ 1 lun 0: <AMI, Host drive #01, > SCSI2 0/direct fixed
sd1: 69618MB, 69618 cyl, 64 head, 32 sec, 512 bytes/sec, 142577664 sec
total
sd2 at scsibus0 targ 2 lun 0: <AMI, Host drive #02, > SCSI2 0/direct fixed
sd2: 69618MB, 69618 cyl, 64 head, 32 sec, 512 bytes/sec, 142577664 sec
total
scsibus1 at ami0: 16 targets
safte0 at scsibus1 targ 6 lun 0: <SUPER, GEM318, 0> SCSI2 3/processor
fixed
scsibus2 at ami0: 16 targets
safte1 at scsibus2 targ 6 lun 0: <SUPER, GEM318, 0> SCSI2 3/processor
fixed
ahc0 at pci3 dev 6 function 0 "Adaptec AHA-29160 U160" rev 0x02: apic 9
int 4 (irq 10)
scsibus3 at ahc0: 16 targets
st0 at scsibus3 targ 6 lun 0: <SEAGATE, DAT 9SP40-000, 910B> SCSI3
1/sequential removable
uhci0 at pci0 dev 29 function 0 "Intel 82801CA/CAM USB" rev 0x02: apic 8
int 16 (irq 10)
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
ppb4 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0x42
pci5 at ppb4 bus 1
fxp0 at pci5 dev 1 function 0 "Intel 8255x" rev 0x10, i82551: apic 8 int
17 (irq 5), address 00:e0:81:26:a9:e4
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4
vga1 at pci5 dev 2 function 0 "ATI Rage XL" rev 0x27
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
skc0 at pci5 dev 4 function 0 "D-Link Systems DGE-530T A1" rev 0x11,
Marvell Yukon (0x1): apic 8 int 19 (irq 9)
sk0 at skc0 port A, address 00:13:46:72:3b:1d
eephy0 at sk0 phy 0: Marvell 88E1011 Gigabit PHY, rev. 3
ichpcib0 at pci0 dev 31 function 0 "Intel 82801CA LPC" rev 0x02
pciide0 at pci0 dev 31 function 1 "Intel 82801CA IDE" rev 0x02: DMA,
channel 0 configured to compatibility, chann
el 1 configured to compatibility
atapiscsi0 at pciide0 channel 0 drive 0
scsibus4 at atapiscsi0: 2 targets
cd0 at scsibus4 targ 0 lun 0: <SONY, DVD RW DW-U18A, UYS4> SCSI0 5/cdrom
removable
cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
pciide0: channel 1 disabled (no drives)
ichiic0 at pci0 dev 31 function 3 "Intel 82801CA/CAM SMBus" rev 0x02: apic
8 int 17 (irq 5)
iic0 at ichiic0
lm1 at iic0 addr 0x29: W83782D
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
lm0 at isa0 port 0x290/8: W83627HF
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
biomask 0 netmask 0 ttymask 0
ioapic0: pin 17 shares different IPL interrupts (40..50), degraded
performance
pctr: user-level cycle counter enabled
dkcsum: sd0 matches BIOS drive 0x80
dkcsum: sd1 matches BIOS drive 0x81
dkcsum: sd2 matches BIOS drive 0x82
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02
Jeff Ross
