Date: Tue, 23 Feb 1999 18:07:19 +0200 From: Ruslan Ermilov <ru@ucb.crimea.ua> To: FreeBSD Hardware <hardware@freebsd.org> Subject: HELP: Western Digital SCSI drive performance Message-ID: <19990223180719.A24519@ucb.crimea.ua>
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--IJpNTDwzlM2Ie8A6 Content-Type: text/plain; charset=us-ascii Hi! Using (dd if=/dev/zero of=file bs=64k count=1000) I get about 4.2MB/s write rate on my WDE4360 Ultra-Wide drive. Is it OK or slow? A few people reported about 8MB/s rates. Does it depend on CPU and/or RAM? Details (/var/run/dmesg.boot) are attached. Thank you! -- Ruslan Ermilov Sysadmin and DBA of the ru@ucb.crimea.ua United Commercial Bank +380.652.247.647 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age --IJpNTDwzlM2Ie8A6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="dmesg.boot" 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-STABLE #1: Mon Feb 22 13:14:55 EET 1999 root@relay.ucb.crimea.ua:/usr/src/sys/compile/CHYRO Timecounter "i8254" frequency 1193182 Hz Timecounter "TSC" frequency 198665808 Hz CPU: Pentium Pro (198.67-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x619 Stepping=9 Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV> real memory = 33554432 (32768K bytes) avail memory = 29945856 (29244K bytes) Preloaded elf kernel "kernel" at 0xf02bb000. Probing for devices on PCI bus 0: Correcting Natoma config for non-SMP chip0: <Intel 82440FX (Natoma) PCI and memory controller> rev 0x02 on pci0.0.0 fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x02 int a irq 10 on pci0.10.0 fxp0: Ethernet address 00:a0:c9:55:13:22 fxp1: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x01 int a irq 9 on pci0.12.0 fxp1: Ethernet address 00:a0:c9:10:68:a0, 10Mbps ahc0: <Adaptec aic7880 Ultra SCSI adapter> rev 0x00 int a irq 11 on pci0.13.0 ahc0: Using left over BIOS settings ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs fxp2: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x01 int a irq 11 on pci0.15.0 fxp2: Ethernet address 00:a0:c9:5a:51:f9, 10Mbps chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.18.0 ide_pci0: <Intel PIIX3 Bus-master IDE controller> rev 0x00 on pci0.18.1 vga0: <Cirrus Logic GD5430 SVGA controller> rev 0x22 on pci0.20.0 Probing for PnP devices: 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 not found sio0 at 0x3f8-0x3ff irq 4 on isa sio0: type 16550A sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A cy0 irq 5 maddr 0xd4000 msize 8192 on isa wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ffa0ff on isa wdc0: unit 0 (atapi): <CD-ROM CDU311/3.0j>, removable, accel, dma, iordis acd0: drive speed 1378KB/sec, 256KB cache acd0: supported read types: CD-DA acd0: Audio: play, 256 volume levels acd0: Mechanism: ejectable tray acd0: Medium: no/blank disc inside, unlocked wdc1 not found at 0x170 fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: FIFO enabled, 8 bytes threshold fd0: 1.44MB 3.5in vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa npx0 on motherboard npx0: INT 16 interface IP packet filtering initialized, divert enabled, rule-based forwarding disabled, unlimited logging DUMMYNET initialized (980901) -- size dn_pkt 48 Waiting 2 seconds for SCSI devices to settle changing root device to da0s1a da0 at ahc0 bus 0 target 0 lun 0 da0: <WDIGTL ENTERPRISE 1.80> Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing Enabled da0: 4157MB (8515173 512 byte sectors: 64H 32S/T 4157C) (da0:ahc0:0:0:0): tagged openings now 64 --IJpNTDwzlM2Ie8A6-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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