On Tue, Oct 13, 2015 at 03:18:21PM +0800, Peter Chen wrote: > The bulk queue tests are used to show 'best performance' for bulk > transfer, we are often asked this question by users. The implementation > is the same with iso test, that is queue request at interrupt completion, > so we reuse the iso structures, and rename them as common one. > > It's result should be very close to IC simulation, in order > to get that, the device side should also need to prepare enough > queue. > > We have got the 'best performance' (IN: 41MB, OUT: 39MB) at i.mx platform > (USB2, ARM Cortex A9, stream mode need to enable) with below command: > > Host side: > modprobe usbtest > ./testusb -a -t 27 -g 64 -s 16384 > ./testusb -a -t 28 -g 64 -s 16384 > Gadget side: > modprobe g_zero loopdefault=1 qlen=64 buflen=16384 > > Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> > Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> > Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > --- > > Changes for v2: > - Fixed the checkpatch.pl error, thanks Felipe. Fails to apply :( -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
