From mboxrd@z Thu Jan  1 00:00:00 1970
From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
Date: Thu, 27 Jan 2011 13:20:45 +0700
Subject: can we measure the traffic between user and kernel mode
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On Thu, Jan 27, 2011 at 12:56, loody <miloody@gmail.com> wrote:
> 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.

well then, strace/ltrace is probably the right tool to do the job :)
or just use /proc/<pid>/stack :)

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com