Hello, I'm wondering whether it is an issue (pls see below) with the built-in command "time" of my bash (version is 3.2.33(1)-release) or of the liux kernel itself.
---------- Weitergeleitete Nachricht ----------
Subject: Re: [uml-user] wondering about the output of time command (real/user)
Date: Monday 04 August 2008 19:00:35 :
From: Jeff Dike <[EMAIL PROTECTED]>
To: Toralf Förster <[EMAIL PROTECTED]>
On Thu, Jul 24, 2008 at 06:11:48PM +0200, Toralf Förster wrote:
> Hhm,
>
> running the same command both at the host :
>
> n22 ~ # time factor 819734028463158891
> 819734028463158891: 3 273244676154386297
>
> real 0m6.002s
> user 0m5.911s
> sys 0m0.000s
>
> and within UML image :
>
> n22_uml ~ # time factor 819734028463158891
> 819734028463158891: 3 273244676154386297
>
> real 0m6.084s
> user 0m3.010s
> sys 0m0.000s
>
> I'm wondering why the same command at the same system needs within
> UML only half of the time as for the user part.
Looks like userspace ticks aren't being counted correctly...
That got trickier with the introduction of NOHZ.
Jeff
--
Work email - jdike at linux dot intel dot com
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MfG/Sincerely
Toralf Förster
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