hi all: thanks for your kind reply :-) 2011/1/27 Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx>: > On Thu, Jan 27, 2011 at 10:42, loody <miloody@xxxxxxxxx> wrote: >> Dear all: >> 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.) > > By "traffic", you mean context switch latency? Perhaps you mean a tool > like lmbench? I got a user-mode application without symbol and source, and it keeps console no response about 2 mins. I just want to know whether it is busy on processing itself or do the context switch frequently for calling kernel drivers at that time. thanks a lot, miloody > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com > -- Regards, _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
