linux-kernel - Re: Interesting interaction between lguest and CFS

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Message-ID: <b647ffbd0706050841v2a326fb4n128249131ccbc11a@mail.gmail.com>
Date:	Tue, 5 Jun 2007 17:41:07 +0200
From:	"Dmitry Adamushko" <dmitry.adamushko@...il.com>
To:	"Matt Mackall" <mpm@...enic.com>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>,
	"Rusty Russell" <rusty@...tcorp.com.au>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: Interesting interaction between lguest and CFS

On 05/06/07, Dmitry Adamushko <dmitry.adamushko@...il.com> wrote:
> > now at 257428593818894 nsecs
> >
> > cpu: 0
> >   .nr_running            : 3
> >   .raw_weighted_load     : 2063
> >   .nr_switches           : 242830075
> >   .nr_load_updates       : 30172063
> >   .nr_uninterruptible    : 0
> >   .jiffies               : 64282148
> >   .next_balance          : 0
> >   .curr->pid             : 27182
> >   .clock                 : 125650217819008823
> >   .prev_clock_raw        : 257428516403535
>
> The delta (clock - prev_clock_raw) looks insane.
>

err.. please ignore it. 'clock' and 'prev_clock_raw' follow each other
only as long as the 'clock_warps' == 0.. otherwise 'delta' just
doesn't make any sense. And in your case:

  .clock_warps           : 9


-- 
Best regards,
Dmitry Adamushko
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