On Sun, Oct 14, 2007 at 01:11:39AM +0530, Nilanjan Roychowdhury wrote: > Hi, > I have a USB host controller hooked up with CPU and memory subsystem > though some proprietary bus in a custom SOC. We could get the USB > susbsyem up and running by hooking up our board specific code to Linux > USB susbsystem. Now we want to measure the data transfer rate over > USB. We are using a USB 2.0 Hard disc device as a test device. I > understand simply a "cp" command will not give accurate data. Can > anyone please tell me what is the best way to do it? ( other than > using an analyser). will "dd" help ? Using an analyser is the best way. Numerous hard drives have latencies in responding to commands. I suggest using the usb test module, you should be able to saturate the usb connection using that code, and it works with lots of different types of hardware. good luck, greg k-h -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
