hi Ming.lei: 2014-03-17 22:01 GMT+08:00 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>: > On Sun, 16 Mar 2014, vichy wrote: > >> hi all: >> recently we bump to system performance issue when usb irq take quite long. >> I found below link for discussing how to short >> in 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
