hi all: recently we bump to system performance issue when usb irq take quite long. I found below link for discussing how to short http://permalink.gmane.org/gmane.linux.usb.general/89363 I have some questions about this patch. 1. is there patch or kernel config I can use to measure man/avage usb irq time consuming like the above link show 2. I see this patch is roll back in commit "c04ee4b1136e462722567cf6e76bb35a181574a7" and intend to be ready in 3.13-rc1 Is there special reason why we need to roll back? appreciate your help in advance, -- 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
