> Is there any directory under proc/sys or tools that can help us to > measure the traffic between user and kernel mode? > (such as ioctl, open, close, etc.) Not that I know of, but you can use strace in order to monitor system calls performed by a particular application. Alex. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies