Messages in this thread | | | Subject | Re: Extremely poor umass transfer rates | From | Mark Rosenstand <> | Date | Thu, 28 Apr 2005 19:55:40 +0200 |
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On Thu, 2005-04-28 at 12:59 -0400, Dave Jones wrote: > On Thu, Apr 28, 2005 at 06:02:22PM +0200, Mark Rosenstand wrote: > > I get transfer rates at around 30 kB/s to USB mass storage devices. It > > applies to both my keyring and my mp3 player. Both are running vfat. > > > > I'm running 2.6.12-rc3 for amd64 with patches for inotify and skge. The > > motherboard is an ASUS K8V-X (VIA K8T800). > > > > It worked alright earlier (2.6.10 or 2.6.11, I'll test later if > > necessary.) > > > > Also, if I transfer more than one file at a time the music tracks start > > overlapping on my mp3 player. > > Are you running it on a USB 2.0 capable interface ?
I believe so. How do I verify it?
I've tried to move it to the other on-board hub but without results.
> Is your mp3 player USB2.0 capable ?
I'm not sure. But I do know that it used to be *much* faster than this. My keyring is USB 2.0 capable and that's slow as well.
> USB1.1 is painfully slow for storage.
Yeah, but I don't think it should be 30 kB/s.
Some more details:
The line that 'hald' puts in fstab looks like this:
/dev/sdb /media/usbdisk vfat \ user,exec,noauto,utf8,noatime,sync,managed 0 0
The relevant parts of my .config:
# # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_SUSPEND is not set # CONFIG_USB_OTG is not set
# # USB Host Controller Drivers # CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_OHCI_HCD is not set CONFIG_USB_UHCI_HCD=y # CONFIG_USB_SL811_HCD is not set
[...]
CONFIG_USB_STORAGE=m
What my dmesg tells me when I attach the device:
usb 2-1: new full speed USB device using uhci_hcd and address 6 scsi6 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 6 usb-storage: waiting for device to settle before scanning Vendor: iriver Model: MassStorage Disc Rev: Type: Direct-Access ANSI SCSI revision: 00 SCSI device sdb: 249857 512-byte hdwr sectors (128 MB) sdb: Write Protect is off sdb: Mode Sense: 45 00 00 08 sdb: assuming drive cache: write through SCSI device sdb: 249857 512-byte hdwr sectors (128 MB) sdb: Write Protect is off sdb: Mode Sense: 45 00 00 08 sdb: assuming drive cache: write through sdb: Attached scsi removable disk sdb at scsi6, channel 0, id 0, lun 0 usb-storage: device scan complete
Thanks for the advices so far :-)
-- .-. Mark Rosenstand (-.) oo| cc ) /`'\ (+45) 255 31337 3-n-( (\_;/) mark@geekworld.org _(|/`->
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