From mboxrd@z Thu Jan  1 00:00:00 1970
From: mueddib@goosey.org (Ozgur Karatas)
Date: Fri, 21 Apr 2017 20:09:26 +0300
Subject: Kernel CPU Utilization
In-Reply-To: <4605311492794245@web6o.yandex.ru>
References: <20170421161757.GA14406@pride.cult>
	<4605311492794245@web6o.yandex.ru>
Message-ID: <4535711492794566@web2g.yandex.ru>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org


> 21.04.2017, 19:19, "Stephen Brennan" <stephen@brennan.io>:
> ?Hello all,
>

Hello,

> ?I was wondering if anyone had some information on how CPU time used by the
> ?kernel is accounted for, e.g. in top or htop. I would imagine that kernel code
> ?running in process code would be "billed" toward that process. What about kernel
> ?worker threads (for example, work_structs queued for later)?
>
> ?My overall goal is that I'm doing some large-scale network emulation, and I want
> ?to ensure that the kernel is not using too much CPU time, otherwise the CPU
> ?overhead may be messing with the results.

I written to the code for myself, you can use and develop this code (open source).

https://github.com/mueddib/cpustat

> ?Thanks,
> ?Stephen

Regards,

Ozgur