User Feedback :: LiveCD copying over USB 2.0 speed ?

I was using DSL 4.4.3 live CD last week to backup the data on a borked winXP machine before trying a repair install of XP.

It took about 1 hour to copy over 3GB of data onto a USB flash drive using Emelfm. Given that the USB flash drive was a fast Corsair 4GB and the USB port was 2.0, is this not very slow? Is there a setting I need to adjust in DSL to get a fast copying speed ? Is there a better package than Emelfm to use ? Or is this slow speed all that I could expect ?

Thanks.

Was it many small files or some big ones?
Usb flash drives are *very* slow with small files, way under 1/10 of their rated write speed.
This is caused by the flash mechanics of big erase blocks.

Your speed was about 0.9mb / s.

Then I recall there was an issue with usb 2.0 by default preventing someone's usb boot, so only 1.1 is loaded by default. You need to "sudo modprobe ehci_hcd" to get usb 2.0 speeds.

usb2.0 is disabled by default?

I can't help but think that's the wrong around to what it ought to be - that it should be enabled by default and disabled with a boot code. Same with dma.

Was there only one person who had problems booting because usb2.0 was enabled?

It is not disabled. My main machine for DSL is usb 2.0 pendrive booted. When I have to use an older machine with only 1.1, I notice the difference.

One can always do an lsmod and system stats and see the module.

Thanks for clarifying that, I thought it sounded a bit odd.

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