In conducting tests on a 4GB USB 200x memory stick, I find that using Linux
2.6.17 reading 8KB blocks I get 12MB/sec for sequential access and 3MB/sec
for random access. The interesting thing is that under Windows with the same
memory stick I get 10MB/sec for both sequential and random access. My goal
is to get the fastest random access speed under Linux.

I have delved into the internals of the usbstorage driver and tried various
settings such as the GO_SLOW flag, but none of them help. I have also tried
bypassing the usbstorage driver using libusb and got the same performance
numbers.

Any ideas?

Thanks,

Fred Shotton


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