Please take a look at my first mail.

On 12.02.2008, at 14:59, Asbj=C3=B8rn Clemmensen wrote:

> I've never experienced that error, but when it happens, how much =20
> free memory
> does the system have? Are you running FreeBSD as i386 or amd64? I =20
> had to
> switch to amd64 because performance was extremely poor running with =20=


> a i386
> system.
>
> - Asbj=C3=B8rn
>
> On Tue, Feb 12, 2008 at 01:36:39PM +0300, Alexey Tarasov wrote:
>> Hello.
>>
>> Thanks, hashing works good with this options.
>>
>> Another issue. Sometimes I get the following error in rtorrent:
>>
>> Storage error: [File chunk write error: Cannot allocate memory.]
>>
>> Is it an issue of ZFS or Rtorrent bug?
>>
>> On 12.02.2008, at 8:47, Asbj=C3=B8rn Clemmensen wrote:
>>
>>> On Mon, Feb 11, 2008 at 03:49:40PM +0300, Alexey Tarasov wrote:
>>>> Hello.
>>>>
>>>> I am trying to use ZFS to store my torrent downloads. I noticed =20
>>>> that hashing in rtorrent works 10 times slower than the same disk =20=


>>>> with UFS.
>>>
>>> You might want to try changing rtorrent's settings for hashing =20
>>> files. I had
>>> the same problem when switching to ZFS - files hashed at < 1mb/=20
>>> sec. I ended up
>>> using these settings:
>>>
>>> hash_read_ahead =3D 32
>>> hash_max_tries =3D 1
>>> hash_interval =3D 1
>>>
>>> This way the drives are utilized much more, and same goes for the =20=


>>> CPU. Now I'm
>>> getting 20-30 mb/sec when hashing.
>>>
>>> (7.0-PRERELEASE amd64, Athlon64 3800+ X2, 3 Gb of RAM)
>>>
>>>>
>>>> I've done tuning as described in WIKI:
>>>>
>>>> vm.kmem_size_max=3D"1073741824"
>>>> vm.kmem_size=3D"1073741824"
>>>>
>>>> kern.maxvnodes=3D800000
>>>>
>>>> My DMESG:
>>>>
>>>> Copyright (c) 1992-2008 The FreeBSD Project.
>>>> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, =20
>>>> 1993, 1994
>>>> The Regents of the University of California. All rights =20
>>>> reserved.
>>>> FreeBSD is a registered trademark of The FreeBSD Foundation.
>>>> FreeBSD 7.0-PRERELEASE #1: Wed Feb 6 15:39:32 MSK 2008
>>>> lexa@alpha.lexasoft.ru:/usr/obj/usr/src/sys/ALPHA
>>>> Timecounter "i8254" frequency 1193182 Hz quality 0
>>>> CPU: Genuine Intel(R) CPU 2160 @ 1.80GHz (1795.51-MHz =20=


>>>> K8-class CPU)
>>>> Origin =3D "GenuineIntel" Id =3D 0x6f2 Stepping =3D 2
>>>> Features=20
>>>> =3D=20
>>>> 0xbfebfbff=20
>>>> <=20
>>>> FPU=20
>>>> ,VME=20
>>>> ,DE=20
>>>> ,PSE=20
>>>> ,TSC=20
>>>> ,MSR=20
>>>> ,PAE=20
>>>> ,MCE=20
>>>> ,CX8=20
>>>> ,APIC=20
>>>> ,SEP=20
>>>> ,MTRR=20
>>>> ,PGE=20
>>>> ,MCA=20
>>>> ,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2 ,SS,HTT,TM,PBE>
>>>> Features2=20
>>>> =3D0xe39d
>>>> AMD Features=3D0x20100800
>>>> AMD Features2=3D0x1
>>>> Cores per package: 2
>>>> usable memory =3D 4280516608 (4082 MB)
>>>> avail memory =3D 4125683712 (3934 MB)
>>>> ACPI APIC Table:
>>>> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>>>> cpu0 (BSP): APIC ID: 0
>>>> cpu1 (AP): APIC ID: 1
>>>> ioapic0 irqs 0-23 on motherboard
>>>> ioapic1 irqs 24-47 on motherboard
>>>> kbd1 at kbdmux0
>>>> ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, =20
>>>> RF2413, RF5413)
>>>> hptrr: HPT RocketRAID controller driver v1.1 (Feb 6 2008 15:37:30)
>>>> acpi0: on motherboard
>>>> acpi0: [ITHREAD]
>>>> acpi0: Power Button (fixed)
>>>> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
>>>> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on =20=


>>>> acpi0
>>>> cpu0: on acpi0
>>>> est0: on cpu0
>>>> est: CPU supports Enhanced Speedstep, but is not recognized.
>>>> est: cpu_vendor GenuineIntel, msr 928092806000928
>>>> device_attach: est0 attach returned 6
>>>> p4tcc0: on cpu0
>>>> cpu1: on acpi0
>>>> est1: on cpu1
>>>> est: CPU supports Enhanced Speedstep, but is not recognized.
>>>> est: cpu_vendor GenuineIntel, msr 928092806000928
>>>> device_attach: est1 attach returned 6
>>>> p4tcc1: on cpu1
>>>> pcib0: port 0xcf8-0xcff on acpi0
>>>> pci0: on pcib0
>>>> pcib1: irq 16 at device 1.0 on pci0
>>>> pci1: on pcib1
>>>> pcib2: irq 17 at device 28.0 on pci0
>>>> pci9: on pcib2
>>>> pcib3: at device 0.0 on pci9
>>>> pci10: on pcib3
>>>> pcib4: irq 17 at device 28.4 on pci0
>>>> pci13: on pcib4
>>>> em0: port =20=


>>>> 0x4000-0x401f mem 0xe0200000-0xe021ffff irq 16 at device 0.0 on =20
>>>> pci13
>>>> em0: Using MSI interrupt
>>>> em0: Ethernet address: 00:30:48:8f:78:ca
>>>> em0: [FILTER]
>>>> pcib5: irq 16 at device 28.5 on pci0
>>>> pci14: on pcib5
>>>> em1: port =20=


>>>> 0x5000-0x501f mem 0xe0300000-0xe031ffff irq 17 at device 0.0 on =20
>>>> pci14
>>>> em1: Using MSI interrupt
>>>> em1: Ethernet address: 00:30:48:8f:78:cb
>>>> em1: [FILTER]
>>>> uhci0: port 0x3000-0x301f irq 23 =20=


>>>> at device 29.0 on pci0
>>>> uhci0: [GIANT-LOCKED]
>>>> uhci0: [ITHREAD]
>>>> usb0: on uhci0
>>>> usb0: USB revision 1.0
>>>> uhub0: on =20=


>>>> usb0
>>>> uhub0: 2 ports with 2 removable, self powered
>>>> uhci1: port 0x3020-0x303f irq 19 =20=


>>>> at device 29.1 on pci0
>>>> uhci1: [GIANT-LOCKED]
>>>> uhci1: [ITHREAD]
>>>> usb1: on uhci1
>>>> usb1: USB revision 1.0
>>>> uhub1: on =20=


>>>> usb1
>>>> uhub1: 2 ports with 2 removable, self powered
>>>> uhci2: port 0x3040-0x305f irq 18 =20=


>>>> at device 29.2 on pci0
>>>> uhci2: [GIANT-LOCKED]
>>>> uhci2: [ITHREAD]
>>>> usb2: on uhci2
>>>> usb2: USB revision 1.0
>>>> uhub2: on =20=


>>>> usb2
>>>> uhub2: 2 ports with 2 removable, self powered
>>>> uhci3: port 0x3060-0x307f irq 16 =20=


>>>> at device 29.3 on pci0
>>>> uhci3: [GIANT-LOCKED]
>>>> uhci3: [ITHREAD]
>>>> usb3: on uhci3
>>>> usb3: USB revision 1.0
>>>> uhub3: on =20=


>>>> usb3
>>>> uhub3: 2 ports with 2 removable, self powered
>>>> ehci0: mem =20
>>>> 0xe0000000-0xe00003ff irq 23 at device 29.7 on pci0
>>>> ehci0: [GIANT-LOCKED]
>>>> ehci0: [ITHREAD]
>>>> usb4: EHCI version 1.0
>>>> usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
>>>> usb4: on ehci0
>>>> usb4: USB revision 2.0
>>>> uhub4: on =20=


>>>> usb4
>>>> uhub4: 8 ports with 8 removable, self powered
>>>> pcib6: at device 30.0 on pci0
>>>> pci15: on pcib6
>>>> vgapci0: port 0x6000-0x60ff mem =20
>>>> 0xe8000000-0xefffffff,0xe0400000-0xe040ffff irq 16 at device 0.0 =20=


>>>> on pci15
>>>> isab0: at device 31.0 on pci0
>>>> isa0: on isab0
>>>> atapci0: port =20
>>>> 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x30a0-0x30af at device 31.1 =20=


>>>> on pci0
>>>> ata0: on atapci0
>>>> ata0: [ITHREAD]
>>>> ata1: on atapci0
>>>> ata1: [ITHREAD]
>>>> atapci1: port 0x30e8-0x30ef,=20
>>>> 0x30dc-0x30df,0x30e0-0x30e7,0x30d8-0x30db,0x30b0-0x30bf mem =20
>>>> 0xe0000400-0xe00007ff irq 19 at device 31.2 on pci0
>>>> atapci1: [ITHREAD]
>>>> ata2: on atapci1
>>>> ata2: [ITHREAD]
>>>> ata3: on atapci1
>>>> ata3: [ITHREAD]
>>>> pci0: at device 31.3 (no driver attached)
>>>> acpi_button0: on acpi0
>>>> atkbdc0: port 0x60,0x64 irq 1 on =20
>>>> acpi0
>>>> atkbd0: irq 1 on atkbdc0
>>>> kbd0 at atkbd0
>>>> atkbd0: [GIANT-LOCKED]
>>>> atkbd0: [ITHREAD]
>>>> sio0: configured irq 4 not in bitmap of probed irqs 0
>>>> sio0: port may not be enabled
>>>> sio0: configured irq 4 not in bitmap of probed irqs 0
>>>> sio0: port may not be enabled
>>>> sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags =20
>>>> 0x10 on acpi0
>>>> sio0: type 16550A
>>>> sio0: [FILTER]
>>>> sio1: configured irq 3 not in bitmap of probed irqs 0
>>>> sio1: port may not be enabled
>>>> sio1: configured irq 3 not in bitmap of probed irqs 0
>>>> sio1: port may not be enabled
>>>> sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
>>>> sio1: type 16550A
>>>> sio1: [FILTER]
>>>> fdc0: port 0x3f0-0x3f5,0x3f7 irq 6 drq =20=


>>>> 2 on acpi0
>>>> fdc0: does not respond
>>>> device_attach: fdc0 attach returned 6
>>>> ppc0: port 0x378-0x37f,0x778-0x77f irq 7 drq 3 on =20=


>>>> acpi0
>>>> ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
>>>> ppc0: FIFO with 16/16/9 bytes threshold
>>>> ppbus0: on ppc0
>>>> plip0: on ppbus0
>>>> lpt0: on ppbus0
>>>> lpt0: Interrupt-driven port
>>>> ppi0: on ppbus0
>>>> ppc0: [GIANT-LOCKED]
>>>> ppc0: [ITHREAD]
>>>> fdc0: port 0x3f0-0x3f5,0x3f7 irq 6 drq =20=


>>>> 2 on acpi0
>>>> fdc0: does not respond
>>>> device_attach: fdc0 attach returned 6
>>>> orm0: at iomem 0xc0000-0xcafff,0xcb000-0xcbfff,=20=


>>>> 0xcc000-0xccfff on isa0
>>>> sc0: at flags 0x100 on isa0
>>>> sc0: VGA <16 virtual consoles, flags=3D0x300>
>>>> vga0: at port 0x3c0-0x3df iomem 0xa0000-0xbffff =20=


>>>> on isa0
>>>> Timecounters tick every 1.000 msec
>>>> hptrr: no controller detected.
>>>> acd0: CDROM at ata0-master UDMA33
>>>> ad4: 157066MB at ata2-master SATA150
>>>> ad5: 381553MB at ata2-slave =20
>>>> SATA150
>>>> ad6: 157066MB at ata3-master SATA150
>>>> SMP: AP CPU #1 Launched!
>>>> Trying to mount root from ufs:/dev/ad4s1a
>>>> WARNING: ZFS is considered to be an experimental feature in =20
>>>> FreeBSD.
>>>> ZFS filesystem version 6
>>>> ZFS storage pool version 6
>>>>
>>>>
>>>> KERNEL CONFIG is Generic with debug turned off and SCHED_ULE.
>>>>
>>>> Could you please tell me where I am not right? Or what should I =20
>>>> do to make it faster?
>>>>
>>>> --
>>>> Alexey Tarasov
>>>>
>>>> (\__/)
>>>> (=3D'.'=3D)
>>>> E[: | | | | :]=D0=97
>>>> (")_(")
>>>>
>>>> _______________________________________________
>>>> freebsd-current@freebsd.org mailing list
>>>> http://lists.freebsd.org/mailman/lis...reebsd-current
>>>> To unsubscribe, send any mail to =

"freebsd-current-unsubscribe@freebsd.org=20
>>>> "
>>>>
>>>
>>> - Asbj=C3=B8rn Clemmensen

>>
>> --
>> Alexey Tarasov
>>
>> (\__/)
>> (=3D'.'=3D)
>> E[: | | | | :]=D0=97
>> (")_(")
>>
>>


--
Alexey Tarasov

(\__/)
(=3D'.'=3D)
E[: | | | | :]=D0=97
(")_(")

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