From mboxrd@z Thu Jan  1 00:00:00 1970
From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
Date: Thu, 27 Jan 2011 12:02:56 +0700
Subject: can we measure the traffic between user and kernel mode
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To: kernelnewbies@lists.kernelnewbies.org
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On Thu, Jan 27, 2011 at 10:42, loody <miloody@gmail.com> 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?

-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

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