From: miloody@gmail.com (loody)
To: kernelnewbies@lists.kernelnewbies.org
Subject: can we measure the traffic between user and kernel mode
Date: Thu, 27 Jan 2011 13:56:56 +0800 [thread overview]
Message-ID: <AANLkTinZ8cW9QFzvF5jO8tDvp+hxDMsocsFd579FBTZL@mail.gmail.com> (raw)
In-Reply-To: <AANLkTimO9ECBkdY6ujFD6SEfhB4jEPZwO7-szpmAwE0r@mail.gmail.com>
hi all:
thanks for your kind reply :-)
2011/1/27 Mulyadi Santosa <mulyadi.santosa@gmail.com>:
> 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?
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,
next prev parent reply other threads:[~2011-01-27 5:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 3:42 can we measure the traffic between user and kernel mode loody
2011-01-27 4:41 ` Alexandre Courbot
2011-01-27 5:02 ` Mulyadi Santosa
2011-01-27 5:56 ` loody [this message]
2011-01-27 6:20 ` Mulyadi Santosa
2011-01-27 11:56 ` Pravin Shedage
2011-01-27 13:48 ` loody
2011-01-27 17:45 ` Mulyadi Santosa
2011-01-30 7:50 ` loody
2011-01-28 1:07 ` Alexandre Courbot
2011-01-30 8:07 ` loody
2011-01-31 1:38 ` Alexandre Courbot
2011-01-31 1:40 ` Alexandre Courbot
2011-01-27 5:56 ` Michael Blizek
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