geom mirror write performance problem

[OxY]

here's my dmesg



----- Original Message ----- 
From: "Pawel Jakub Dawidek" <pjd at FreeBSD.org>
To: "OxY" <oxy at field.hu>
Cc: <freebsd-geom at freebsd.org>
Sent: Wednesday, December 07, 2005 4:51 PM
Subject: Re: geom mirror write performance problem

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Dec  6 23:22:08 Sco syslogd: kernel boot file is /boot/kernel/kernel
Dec  6 23:22:08 Sco kernel: Copyright (c) 1992-2005 The FreeBSD Project.
Dec  6 23:22:08 Sco kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
Dec  6 23:22:08 Sco kernel: The Regents of the University of California. All rights reserved.
Dec  6 23:22:08 Sco kernel: FreeBSD 6.0-RELEASE #0: Thu Dec  1 16:44:22 CET 2005
Dec  6 23:22:08 Sco kernel: oxygen at Sco.Field.hu:/usr/obj/usr/src/sys/ScoField
Dec  6 23:22:08 Sco kernel: Timecounter "i8254" frequency 1193182 Hz quality 0
Dec  6 23:22:08 Sco kernel: CPU: AMD Athlon(tm) processor (1328.02-MHz 686-class CPU)
Dec  6 23:22:08 Sco kernel: Origin = "AuthenticAMD"  Id = 0x642  Stepping = 2
Dec  6 23:22:08 Sco kernel: Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
Dec  6 23:22:08 Sco kernel: AMD Features=0xc0440800<SYSCALL,<b18>,MMX+,3DNow+,3DNow>
Dec  6 23:22:08 Sco kernel: real memory  = 805240832 (767 MB)
Dec  6 23:22:08 Sco kernel: avail memory = 782929920 (746 MB)
Dec  6 23:22:08 Sco kernel: npx0: [FAST]
Dec  6 23:22:08 Sco kernel: npx0: <math processor> on motherboard
Dec  6 23:22:08 Sco kernel: npx0: INT 16 interface
Dec  6 23:22:08 Sco kernel: acpi0: <VIA694 MSI ACPI> on motherboard
Dec  6 23:22:08 Sco kernel: acpi0: Power Button (fixed)
Dec  6 23:22:08 Sco kernel: pci_link0: <ACPI PCI Link LNKA> irq 5 on acpi0
Dec  6 23:22:08 Sco kernel: pci_link1: <ACPI PCI Link LNKB> irq 11 on acpi0
Dec  6 23:22:08 Sco kernel: pci_link2: <ACPI PCI Link LNKC> irq 10 on acpi0
Dec  6 23:22:08 Sco kernel: pci_link3: <ACPI PCI Link LNKD> on acpi0
Dec  6 23:22:08 Sco kernel: Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
Dec  6 23:22:08 Sco kernel: acpi_timer0: <24-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0
Dec  6 23:22:08 Sco kernel: cpu0: <ACPI CPU> on acpi0
Dec  6 23:22:08 Sco kernel: acpi_button0: <Power Button> on acpi0
Dec  6 23:22:08 Sco kernel: acpi_button1: <Sleep Button> on acpi0
Dec  6 23:22:08 Sco kernel: pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff,0x4000-0x407f,0x4080-0x40ff,0x5000-0x500f,0x6000-0x607f on acpi0
Dec  6 23:22:08 Sco kernel: pci0: <ACPI PCI bus> on pcib0
Dec  6 23:22:08 Sco kernel: pcib1: <PCI-PCI bridge> at device 1.0 on pci0
Dec  6 23:22:08 Sco kernel: pci1: <PCI bus> on pcib1
Dec  6 23:22:08 Sco kernel: isab0: <PCI-ISA bridge> at device 7.0 on pci0
Dec  6 23:22:08 Sco kernel: isa0: <ISA bus> on isab0
Dec  6 23:22:08 Sco kernel: atapci0: <VIA 82C686B UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xc000-0xc00f at device 7.1 on pci0
Dec  6 23:22:08 Sco kernel: atapci0: Correcting VIA config for southbridge data corruption bug
Dec  6 23:22:08 Sco kernel: ata0: <ATA channel 0> on atapci0
Dec  6 23:22:08 Sco kernel: ata1: <ATA channel 1> on atapci0
Dec  6 23:22:08 Sco kernel: pci0: <display, VGA> at device 9.0 (no driver attached)
Dec  6 23:22:08 Sco kernel: atapci1: <CMD 649 UDMA100 controller> port 0xcc00-0xcc07,0xd000-0xd003,0xd400-0xd407,0xd800-0xd803,0xdc00-0xdc0f irq 11 at device 12.0 on pci0
Dec  6 23:22:08 Sco kernel: ata2: <ATA channel 0> on atapci1
Dec  6 23:22:08 Sco kernel: ata3: <ATA channel 1> on atapci1
Dec  6 23:22:08 Sco kernel: xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xe000-0xe07f mem 0xd9000000-0xd900007f irq 10 at device 13.0 on pci0
Dec  6 23:22:08 Sco kernel: miibus0: <MII bus> on xl0
Dec  6 23:22:08 Sco kernel: ukphy0: <Generic IEEE 802.3u media interface> on miibus0
Dec  6 23:22:08 Sco kernel: ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
Dec  6 23:22:08 Sco kernel: xl0: Ethernet address: 00:0a:5e:41:62:1e
Dec  6 23:22:08 Sco kernel: sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
Dec  6 23:22:08 Sco kernel: sio0: type 16550A
Dec  6 23:22:08 Sco kernel: atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
Dec  6 23:22:08 Sco kernel: atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
Dec  6 23:22:08 Sco kernel: atkbd0: [GIANT-LOCKED]
Dec  6 23:22:08 Sco kernel: orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xca7ff,0xcb000-0xcb7ff on isa0
Dec  6 23:22:08 Sco kernel: sc0: <System console> at flags 0x100 on isa0
Dec  6 23:22:08 Sco kernel: sc0: VGA <16 virtual consoles, flags=0x300>
Dec  6 23:22:08 Sco kernel: vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Dec  6 23:22:08 Sco kernel: sio1: configured irq 3 not in bitmap of probed irqs 0
Dec  6 23:22:08 Sco kernel: sio1: port may not be enabled
Dec  6 23:22:08 Sco kernel: Timecounter "TSC" frequency 1328018016 Hz quality 800
Dec  6 23:22:08 Sco kernel: Timecounters tick every 1.000 msec
Dec  6 23:22:08 Sco kernel: IP Filter: v4.1.8 initialized.  Default = pass all, Logging = enabled
Dec  6 23:22:08 Sco kernel: ad0: 38204MB <SAMSUNG SP0411N TW100-11> at ata0-master UDMA100
Dec  6 23:22:08 Sco kernel: ad2: 38204MB <SAMSUNG SP0411N TW100-11> at ata1-master UDMA100
Dec  6 23:22:08 Sco kernel: ad4: 78167MB <Maxtor 4R080L0 RAMB1TU0> at ata2-master UDMA100
Dec  6 23:22:08 Sco kernel: GEOM_MIRROR: Device gm0 created (id=2273680881).
Dec  6 23:22:08 Sco kernel: GEOM_MIRROR: Device gm0: provider ad0 detected.
Dec  6 23:22:08 Sco kernel: GEOM_MIRROR: Device gm0: provider ad2 detected.
Dec  6 23:22:08 Sco kernel: GEOM_MIRROR: Device gm0: provider ad2 activated.
Dec  6 23:22:08 Sco kernel: GEOM_MIRROR: Device gm0: provider ad0 activated.
Dec  6 23:22:08 Sco kernel: GEOM_MIRROR: Device gm0: provider mirror/gm0 launched.
Dec  6 23:22:08 Sco kernel: Trying to mount root from ufs:/dev/mirror/gm0s1a