From owner-freebsd-smp  Tue Sep 22 07:24:56 1998
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From: John Hay <jhay@mikom.csir.co.za>
Message-Id: <199809221423.QAA15764@zibbi.mikom.csir.co.za>
Subject: Re: Only 50% idle with current -current?
In-Reply-To: <199809200851.QAA05006@spinner.netplex.com.au> from Peter Wemm at "Sep 20, 98 04:51:41 pm"
To: peter@netplex.com.au (Peter Wemm)
Date: Tue, 22 Sep 1998 16:23:06 +0200 (SAT)
Cc: smp@FreeBSD.ORG
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This did it, by doing it like this I can get the persentage idle to below
50%...... But why???

John
-- 
John Hay -- John.Hay@mikom.csir.co.za

> John Hay wrote:
> > Hi,
> > 
> > I have updated our one SMP box to the latest -current and now I see on top
> > that it doesn't go below 50% idle anymore. I'm doing a make release and
> > for a while ran two rc5's, but it still stayed at 50% idle. I remember
> > someone else also noticed it a few days ago.
> > 
> > Anyone have any ideas?
> 
> Yes, just try booting "-s" and go into single user mode to start with.
> 
> Give a few commands, eg: 'sync; sync; sync', do a fsck if it's needed and 
> then start multiuser..
> 
> If it then works as expected, then I suspect you are seeing a 
> manifestation of a long running problem.
> 
> I've found that SMP and/or ELF are unhappy at boot under SMP (and have 
> been for 12 months).  If I have /usr/libexec/getty dynamically linked and 
> have more than a couple enabled in ttys, I get a lockup.  The same happens 
> if running rc5des/rc564 from the rc scripts if I don't go into single user 
> and run a few commands first.
> 
> At the time I hacked init(8) to do a couple of fork/exec's at startup and 
> the problem went away.  I don't understand what's going on and spent a 
> fair while last year trying to figure it out.  I'm pretty sure it's not 
> ELF itself, it's just triggering something else.
> 
> > John
> > -- 
> > John Hay -- John.Hay@mikom.csir.co.za
> > 
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-smp" in the body of the message
> > 
> 
> Cheers,
> -Peter

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