Re: [usb-storage] drivers/block/ub.c #6
From: Pat LaVarre
Date: Fri Aug 27 2004 - 16:28:41 EST
Pete Z:
> Date: 30 Jul 2004 04:51:20 -0600
> ...
> I wish this could be somehow limited to flash keys,
I see a 3X drop in thruput, ouch, when I substitute ub.ko for
usb-storage.ko.
Specifically I get 0.5 GB/min from ub.ko, as contrasted with 1.5 GB/min
from usb-storage.ko, in the outside 1 GiB of a particular disc, in three
or more consistent consecutive samples from each.
I knew how to patch to allow bytes/LBA != 512 only because of your
recent answers in [usb-storage]. I took my samples from
linux-2.6.9-rc1-bk2, modprobe'ing .ko built with and without
CONFIG_BLK_DEV_UB.
> I did not ask LANANA for a major.
> next ...
> add ioctls to burn CDs, and ...
Yes please.
Even DVD-RAM need the ioctl's to pass thru SCSI, for everything
vendor-specific that lies beyond generic read and write.
> dynamic ... udev ...
> ufi.c ... refactoring ...
Pat LaVarre
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