Hi list,
on my Soekris 4801-60 i have a FUJITSU MHV2120AT running as slave. The
performance is poor:
[EMAIL PROTECTED] [/data] # time dd if=100Mb.dat of=/dev/null
204800+0 records in
204800+0 records out
104857600 bytes transferred in 11.980 secs (8752083 bytes/sec)
real 0m12.042s
user 0m0.789s
sys 0m10.383s
8.7 MB/Sec really is not much. What worries me more, is that vmstat
shows ~90% sys for the cpu while reading from the disk. This suggests
that the disk is not accessed in DMA mode, although dmesg talks about
UDMA2. How can i verify that the disk is running in DMA mode?
Config:
#########################################################################
comBIOS ver. 1.28 20050529 Copyright (C) 2000-2005 Soekris Engineering.
net4801
0256 Mbyte Memory CPU Geode 266 Mhz
Pri Mas SanDisk SDCFH-512 LBA 993-16-63 500 Mbyte
Pri Sla FUJITSU MHV2120AT LBA Xlt 1024-255-63 51684 Mbyte
Slot Vend Dev ClassRev Cmd Stat CL LT HT Base1 Base2 Int
-------------------------------------------------------------------
0:00:0 1078 0001 06000000 0107 0280 00 00 00 00000000 00000000
0:06:0 100B 0020 02000000 0107 0290 00 3F 00 0000E101 A0000000 10
0:07:0 100B 0020 02000000 0107 0290 00 3F 00 0000E201 A0001000 10
0:08:0 100B 0020 02000000 0107 0290 00 3F 00 0000E301 A0002000 10
0:10:0 13A3 0020 0B400000 0116 0280 08 3C 00 A0003000 A0004000 11
0:18:2 100B 0502 01018001 0005 0280 00 00 00 00000000 00000000
0:19:0 0E11 A0F8 0C031008 0117 0280 08 38 00 A0010000 00000000 05
1 Seconds to automatic boot. Press Ctrl-P for entering Monitor.
#####################################################################
dmesg:
#####################################################################
OpenBSD 4.0-stable (GENERIC) #1: Mon Nov 6 17:19:58 CET 2006
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Geode(TM) Integrated Processor by National Semi ("Geode by NSC"
586-class) 267 MH
z
cpu0: FPU,TSC,MSR,CX8,CMOV,MMX
cpu0: TSC disabled
real mem = 268005376 (261724K)
avail mem = 236724224 (231176K)
using 3297 buffers containing 13504512 bytes (13188K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 20/50/29, BIOS32 rev. 0 @ 0xf7840
pcibios0 at bios0: rev 2.0 @ 0xf0000/0x10000
pcibios0: pcibios_get_intr_routing - function not supported
pcibios0: PCI IRQ Routing information unavailable.
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc8000/0x9000
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Cyrix GXm PCI" rev 0x00
sis0 at pci0 dev 6 function 0 "NS DP83815 10/100" rev 0x00, DP83816A:
irq 10, address 0
0:00:24:c7:34:00
nsphyter0 at sis0 phy 0: DP83815 10/100 PHY, rev. 1
sis1 at pci0 dev 7 function 0 "NS DP83815 10/100" rev 0x00, DP83816A:
irq 10, address 0
0:00:24:c7:34:01
nsphyter1 at sis1 phy 0: DP83815 10/100 PHY, rev. 1
sis2 at pci0 dev 8 function 0 "NS DP83815 10/100" rev 0x00, DP83816A:
irq 10, address 0
0:00:24:c7:34:02
nsphyter2 at sis2 phy 0: DP83815 10/100 PHY, rev. 1
hifn0 at pci0 dev 10 function 0 "Hifn 7955/7954" rev 0x00: LZS 3DES ARC4
MD5 SHA1 RNG A
ES PK, 32KB dram, irq 11
gscpcib0 at pci0 dev 18 function 0 "NS SC1100 ISA" rev 0x00
gpio0 at gscpcib0: 64 pins
"NS SC1100 SMI" rev 0x00 at pci0 dev 18 function 1 not configured
pciide0 at pci0 dev 18 function 2 "NS SCx200 IDE" rev 0x01: DMA, channel
0 wired to com
patibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <SanDisk SDCFH-512>
wd0: 1-sector PIO, LBA, 488MB, 1000944 sectors
wd1 at pciide0 channel 0 drive 1: <FUJITSU MHV2120AT>
wd1: 16-sector PIO, LBA, 114473MB, 234441648 sectors
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2
geodesc0 at pci0 dev 18 function 5 "NS SC1100 X-Bus" rev 0x00: iid 6
revision 3 wdstatu
s 0
ohci0 at pci0 dev 19 function 0 "Compaq USB OpenHost" rev 0x08: irq 5,
version 1.0, leg
acy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: Compaq OHCI root hub, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
isa0 at gscpcib0
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
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
nsclpcsio0 at isa0 port 0x2e/2: NSC PC87366 rev 9: GPIO VLM TMS
gpio1 at nsclpcsio0: 29 pins
gscsio0 at isa0 port 0x15c/2: SC1100 SIO rev 1:
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 f3e5 netmask ffe5 ttymask ffe7
pctr: no performance counters in CPU
dkcsum: wd0 matches BIOS drive 0x80
dkcsum: wd1 matches BIOS drive 0x81
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
##########################################################################
Thanks for any help :-)
--
Heinrich Rebehn
University of Bremen
Physics / Electrical and Electronics Engineering
- Department of Telecommunications -
Phone : +49/421/218-4664
Fax : -3341
