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From: Andrew Burgess <aab@cichlid.com>
To: av1474@comtv.ru, linux-kernel@vger.kernel.org
Subject: Re: CPU load
Date: Mon, 12 Feb 2007 08:57:27 -0800	[thread overview]
Message-ID: <200702121657.l1CGvRh5010463@cichlid.com> (raw)

On 12/02/07, Vassili Karpov <av1474@comtv.ru> wrote:
>
> How does the kernel calculates the value it places in `/proc/stat' at
> 4th position (i.e. "idle: twiddling thumbs")?
>
..
>
> Later small kernel module was developed that tried to time how much
> time is spent in the idle handler inside the kernel and exported this
> information to the user-space. The results were consistent with our
> expectations and the output of the test utility.
..
> http://www.boblycat.org/~malc/apc

Vassili

Could you rewrite this code as a kernel patch for
discussion/inclusion in mainline? I and maybe others would
appreciate having idle statistics be more accurate.

Thanks for your work
Andrew


             reply	other threads:[~2007-02-12 16:59 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-12 16:57 Andrew Burgess [this message]
2007-02-12 18:15 ` malc
  -- strict thread matches above, loose matches on Subject: below --
2018-03-27 11:44 CPU Load Ryan Meulenkamp
2018-03-29  1:24 ` Andre McCurdy
2018-03-29  6:42   ` Jussi Laako
2007-02-12  5:33 CPU load Vassili Karpov
2007-02-12  5:44 ` Con Kolivas
2007-02-12  5:54   ` malc
2007-02-12  6:12     ` Con Kolivas
2007-02-12  7:10       ` malc
2007-02-12  7:29         ` Con Kolivas
2007-02-12  5:55   ` Stephen Rothwell
2007-02-12  6:08     ` Con Kolivas
2007-02-12 14:32   ` Pavel Machek
2007-02-13 22:01     ` malc
2007-02-13 22:08       ` Con Kolivas
2007-02-14  7:28         ` malc
2007-02-14  8:09           ` Con Kolivas
2007-02-14 20:45           ` Pavel Machek
2007-02-25 10:35             ` malc
2007-02-26  9:28               ` Pavel Machek
2007-02-26 10:42                 ` malc
2007-02-26 16:38                   ` Randy Dunlap
2007-02-12 18:05   ` malc
2002-07-10 14:50 David Chow
2002-07-10 16:54 ` William Lee Irwin III
2002-07-10 17:49   ` Robert Love
2002-07-26 17:38     ` David Chow

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