Date: Sat, 20 Feb 99 16:21:12 -0800 From: Dennis Glatting <dennis.glatting@software-munitions.com> To: mjacob@feral.com Cc: Matthew Dillon <dillon@apollo.backplane.com>, Paul van der Zwan <paulz@trantor.xs4all.nl>, "Kenneth D. Merry" <ken@plutotech.com>, freebsd-current@FreeBSD.ORG Subject: Re: Slow seq. write on Seagate ST36530N Message-ID: <199902210021.QAA07057@imo.plaintalk.bellevue.wa.us> References: <Pine.LNX.4.04.9902201313490.31494-100000@feral-gw>
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Just to throw my voice in, I get crappy SCSI performance on my
three SCSI card Dell. I don't understand why.
-dpg
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.1-RELEASE #1: Sat Feb 20 01:00:49 PST 1999
root@btw:/ExternalDisk/FreeBSD-btw-3.x/src/sys/compile/BTW
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (333.35-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x650 Stepping=0
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,<b24>>
real memory = 134217728 (131072K bytes)
avail memory = 127307776 (124324K bytes)
Preloaded elf kernel "kernel" at 0xf031e000.
Probing for devices on PCI bus 0:
chip0: <Host to PCI bridge (vendor=8086 device=7180)> rev 0x03 on pci0.0.0
chip1: <PCI to PCI bridge (vendor=8086 device=7181)> rev 0x03 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x01 on pci0.7.0
ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.7.1
chip3: <Intel 82371AB Power management controller> rev 0x01 on pci0.7.3
xl0: <3Com 3c905 Fast Etherlink XL 10/100BaseTX> rev 0x00 int a irq 10
on pci0.13.0
xl0: Ethernet address: 00:60:08:b0:3d:a6
xl0: autoneg complete, link status good (half-duplex, 10Mbps)
ahc0: <Adaptec 2940 Ultra SCSI adapter> rev 0x00 int a irq 9 on pci0.14.0
ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec 2940 Ultra SCSI adapter> rev 0x00 int a irq 3 on pci0.15.0
ahc1: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc2: <Adaptec 2940 Ultra SCSI adapter> rev 0x00 int a irq 11 on pci0.16.0
ahc2: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
Probing for devices on PCI bus 1:
vga0: <VGA-compatible display device> rev 0x21 int a irq 9 on pci1.0.0
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=0x0>
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
psm0 irq 12 on isa
psm0: model IntelliMouse, device ID 3
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1 not found at 0x2f8
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
fd0: 1.44MB 3.5in
wdc0 not found at 0x1f0
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (atapi): <Seagate STT8000A/5.02>, removable, accel, dma, iordis
wdc1: ATAPI streaming tapes not configured
wt0 not found at 0x300
ppc0 at 0x378 irq 7 on isa
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
nlpt0: <generic printer> on ppbus 0
nlpt0: Interrupt-driven port
ppi0: <generic parallel i/o> on ppbus 0
plip0: <PLIP network interface> on ppbus 0
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
sb0 at 0x220 irq 5 drq 1 on isa
snd0: <SoundBlaster 16 4.13>
sbxvi0 at drq 5 on isa
snd0: <SoundBlaster 16 4.13>
sbmidi0 at 0x330 on isa
snd0: <SoundBlaster MPU-401>
IP packet filtering initialized, divert enabled, rule-based forwarding
enabled, logging limited to 256 packets/entry
IP Filter: initialized. Default = pass all, Logging = enabled
Waiting 15 seconds for SCSI devices to settle
sa0 at ahc2 bus 0 target 4 lun 0
sa0: <ARCHIVE ANCDA 2750 28077 -003> Removable Sequential Access
SCSI-CCS device
sa0: 3.300MB/s transfers
changing root device tda1 at ahc1 bus 0 target 0 lun 0
da1: <SEAGATE ST410800W 4508> Fixed Direct Access SCSI-2 device
da1: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing Enabled
da1: 8669MB (17755614 512 byte sectors: 64H 32S/T 8669C)
o da0s1a
cd0 at ahc0 bus 0 target 5 lun 0
cd0: <NEC CD-ROM DRIVE:464 1.05> Removable CD-ROM SCSI-2 device
cd0: 20.0MB/s transfers (20.0MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present
da3 at ahc2 bus 0 target 2 lun 0
da3: <SEAGATE ST43400N 1022> Fixed Direct Access SCSI-2 device
da3: 10.0MB/s transfers (10.0MHz, offset 15), Tagged Queueing Enabled
da3: 2777MB (5688447 512 byte sectors: 255H 63S/T 354C)
da2 at ahc2 bus 0 target 1 lun 0
da2: <SEAGATE ST43400N 1028> Fixed Direct Access SCSI-2 device
da2: 10.0MB/s transfers (10.0MHz, offset 15), Tagged Queueing Enabled
da2: 2777MB (5688447 512 byte sectors: 255H 63S/T 354C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <WDIGTL WDE4360-1807A3 1.80> Fixed Direct Access SCSI-2 device
da0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit)
da0: 4095MB (8388314 512 byte sectors: 255H 63S/T 522C)
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