Re: nForce3 /usbstorage : deadly slow
Dear Marcus,
could you send also the lines in /var/log/messages related to the
hardware detection of the usb storage and to the device associated to it?
Something similar to:
.......
May 11 09:25:49 xxx kernel: usb 4-1.1: new high speed USB device using
ehci_hcd and address 5
May 11 09:25:49 xxx kernel: Initializing USB Mass Storage driver...
May 11 09:25:49 xxx kernel: scsi0 : SCSI emulation for USB Mass Storage
devices
May 11 09:25:49 xxx kernel: usbcore: registered new driver usb-storage
May 11 09:25:49 xxx kernel: USB Mass Storage support registered.
May 11 09:25:54 xxx kernel: sda: assuming drive cache: write through
May 11 09:25:54 xxx kernel: sda: assuming drive cache: write through
May 11 09:25:54 xxx kernel: sda: sda1
.......
Ciao
Leonardo
Marcus Müller wrote:
> I have a problem with my debian system on my Asus K8N board, which is
> nForce3 250 based:
> whenever i plug in a USB2.0-enabled storage device (in my case recently
> a 1GB Creative Muvo TX SE), the kernel recognizes it as USB-2.0 device,
> the ehci_hcd module gets loaded, usbview and all other sources tell me
> that it is a 480MB/s device :
> Speed: 480Mb/s (high)
> USB Version: 2.00
> But: I never even reach a transfer rate of 800kB/s (which would only be
> 1/600 of the maximum thinkable speed). Instead, it writes files with
> about 200 kB/s, until after a few seconds, the transfer rate collapses
> to 80kB/s, which is not only bad but ugly.
> On the same machine, booted with an i386 2.6-kernel from CDROM (Knoppix
> 4.0.1), the device is only recognized as USB1.1 full speed device, but
> still transfers a lot faster than under debian/amd64.
>
> I examined my loaded modules and wasn't able to make out any
> chipset-specific modules, only some i2c-nforce modules (lsmod output
> attached), are there any modules I have to load /unload to make it work
> or do You have any other suggestion?
>
> Thanks,
>
> Marcus Müller
>
>
> ------------------------------------------------------------------------
>
> Module Size Used by
> nls_iso8859_1 5568 1
> nls_cp437 7296 1
> vfat 13440 1
> fat 51824 1 vfat
> sd_mod 17880 2
> vmnet 30552 7
> vmmon 181944 0
> binfmt_misc 12176 1
> thermal 15308 0
> fan 5384 0
> button 7840 0
> processor 24600 1 thermal
> ac 5704 0
> battery 10760 0
> lp 12864 0
> ipv6 252256 17
> reiserfs 226352 3
> dm_mod 53800 0
> nvram 8392 0
> i2c_dev 10720 0
> msr 3976 0
> nvidia 4856084 18
> aes 27112 0
> cryptoloop 4288 0
> loop 15760 1 cryptoloop
> it87 24356 0
> hwmon_vid 3008 1 it87
> i2c_isa 5952 1 it87
> ide_generic 1600 0 [permanent]
> usb_storage 80128 1
> usbhid 34720 0
> snd_intel8x0 34536 1
> snd_ac97_codec 102012 1 snd_intel8x0
> snd_ac97_bus 2880 1 snd_ac97_codec
> analog 10784 0
> snd_pcm_oss 51296 0
> snd_mixer_oss 17472 1 snd_pcm_oss
> psmouse 39308 0
> i2c_nforce2 7808 0
> serio_raw 7748 0
> ide_cd 40224 1
> cdrom 36280 1 ide_cd
> gameport 15824 1 analog
> snd_mpu401 9440 0
> snd_mpu401_uart 7872 1 snd_mpu401
> snd_pcm 89932 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
> i2c_core 23064 4 i2c_dev,it87,i2c_isa,i2c_nforce2
> shpchp 45120 0
> pci_hotplug 11716 1 shpchp
> forcedeth 23876 0
> ehci_hcd 30344 0
> ohci_hcd 19716 0
> parport_pc 36592 1
> parport 38860 2 lp,parport_pc
> snd_rawmidi 26400 1 snd_mpu401_uart
> snd_seq_device 9744 1 snd_rawmidi
> snd_timer 23944 1 snd_pcm
> snd_page_alloc 11344 2 snd_intel8x0,snd_pcm
> snd 57984 12 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_mpu401,snd_mpu401_uart,snd_pcm,snd_rawmidi,snd_seq_device,snd_timer
> soundcore 10720 1 snd
> pcspkr 3784 0
> floppy 65664 0
> ext3 128272 4
> jbd 54184 1 ext3
> mbcache 9352 1 ext3
> ide_disk 16256 9
> sata_nv 10628 0
> libata 60760 1 sata_nv
> scsi_mod 144856 3 sd_mod,usb_storage,libata
> amd74xx 15280 0 [permanent]
> generic 5636 0 [permanent]
> ide_core 139160 6 ide_generic,usb_storage,ide_cd,ide_disk,amd74xx,generic
> evdev 10944 0
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