Date: Mon, 21 Jul 2003 17:01:55 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: Andy Farkas <andyf@speednet.com.au> Cc: FreeBSD current users <current@freebsd.org> Subject: Re: SMP and setrunnable()- scheduler 4bsd Message-ID: <Pine.BSF.4.21.0307211701190.14696-100000@InterJet.elischer.org> In-Reply-To: <20030722094949.I74931-100000@hewey.af.speednet.com.au>
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On Tue, 22 Jul 2003, Andy Farkas wrote:
> > Mr Wolf,
>
> Heh, you noticed :)
>
> > > Currently (cpu_idle_hlt=1) the load is fluctuating between 2.20 and 3.60
> > > every few minutes! (xload looks like a graph of a sinewave)
> > >
> > > If I set cpu_idle_hlt back to 0 the load goes back to a steady 3.80 where
> > > it should be.
> >
> > define "should".
>
> When all 3 seti's get their "normal" 95% cpu time:
the change MAY do what you want but it 'may not'
you'll need to try it to see.. :-/
>
> 32531 setiathome 139 15 16536K 15520K *Giant 1 60.9H 95.85% 95.85% setiathome
> 32533 setiathome 139 15 16856K 16032K CPU3 3 61.0H 95.65% 95.65% setiathome
> 32532 setiathome 139 15 15524K 14912K CPU2 2 60.8H 95.51% 95.51% setiathome
> 54738 andyf 132 0 3084K 2140K *Giant 0 64:54 83.84% 83.84% ssh
> 12 root -16 0 0K 12K RUN 2 133.4H 3.81% 3.81% idle: cpu2
> 13 root -16 0 0K 12K RUN 1 131.7H 3.47% 3.47% idle: cpu1
> 14 root -16 0 0K 12K CPU0 0 130.8H 3.37% 3.37% idle: cpu0
> 11 root -16 0 0K 12K RUN 3 135.2H 2.88% 2.88% idle: cpu3
>
> As opposed to "abnormal" when cpu_idle_hlt=1:
>
> 32533 setiathome 139 15 15828K 15000K CPU1 2 61.0H 89.40% 89.40% setiathome
> 32532 setiathome 139 15 16552K 15660K *Giant 2 60.8H 88.18% 88.18% setiathome
> 54738 andyf 130 0 3084K 2140K select 2 68:54 75.78% 75.78% ssh
> 13 root -16 0 0K 12K RUN 1 131.7H 29.05% 29.05% idle: cpu1
> 12 root -16 0 0K 12K CPU2 2 133.4H 28.08% 28.08% idle: cpu2
> 11 root -16 0 0K 12K CPU3 3 135.2H 27.83% 27.83% idle: cpu3
> 14 root -16 0 0K 12K RUN 0 130.8H 26.37% 26.37% idle: cpu0
> 32531 setiathome 131 15 15640K 14976K *Giant 2 61.0H 20.51% 20.51% setiathome
>
>
> --
>
> :{ andyf@speednet.com.au
>
> Andy Farkas
> System Administrator
> Speednet Communications
> http://www.speednet.com.au/
>
>
>
>
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