Hi all,
I have a 2.5in usb HD and 2 external usb2 cases. I've been getting
pretty average performance with a 7200 rpm drive in both cases, but I
just thought this was the way it is.
However, I just did a test:
$ time
cp /usr/portage/distfiles/OOo_2.0.1_LinuxIntel_install.tar.gz
/mnt/usb-storage/device-0/partition-5/
real 1m20.903s
which is pretty slow. I copied the same file in winblows (without
changing usb ports or anything) and it copies in about 15 seconds.
I noticed I had uhci-hcd loaded (the usb 1 module?) so I unloaded it,
and my keyboard stopped working!!! So using the laptop keyboard, I
replugged the HD (now without uhci-hcd) and it still goes slow...
$ sudo hdparm -tT /dev/sdd
/dev/sdd:
Timing cached reads: 3640 MB in 2.00 seconds = 1820.28 MB/sec
Timing buffered disk reads: 30 MB in 3.13 seconds = 9.60 MB/sec
9.6 is pretty slow! I should be able to get at least double that...
And as I've said, I know this port is usb 2.0.
Any hints?
thanks,
--
Iain Buchanan <iaindb at netspace dot net dot au>
IN MY OPINION anyone interested in improving himself should not rule out
becoming pure energy.
-- Jack Handley, The New Mexican, 1988.
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