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Date:      Sat, 14 Sep 2002 09:28:58 +0100
From:      Mark Murray <mark@grondar.za>
To:        Julian Elischer <julian@elischer.org>
Cc:        FreeBSD current users <current@FreeBSD.ORG>
Subject:   Re: A riddle in -current 
Message-ID:  <200209140828.g8E8Sw7s051677@grimreaper.grondar.org>
In-Reply-To: <Pine.BSF.4.21.0209132309340.80315-100000@InterJet.elischer.org> ; from Julian Elischer <julian@elischer.org>  "Fri, 13 Sep 2002 23:19:26 PDT."
References:  <Pine.BSF.4.21.0209132309340.80315-100000@InterJet.elischer.org> 

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> 
> 2 identical machines.
> the same kernel binary
> /etc (basically) identical (/etc/passwd slightly different)
> the same system sources compiled and installed

/etc "basically" identical? What does diff say?

What is being launched on each from /usr/local/etc/rc.d/*.sh ?

What are the (any?) diffs between the /boot/loader.conf's?

M

> yet:
> 
> one is 10% faster than the other CONSISTANTLY in buildworld
> 
> after a reboot and 5 minutes of the EXACT same work (buildworld up to 
> the following message:)
> --------------------------------------------------------------
> >>> stage 2: cleaning up the object tree
> --------------------------------------------------------------
> the slower machine shows in top:
> 
> last pid:  3079;  load averages:  0.01,  0.19,  0.14    up 0+00:13:02
> 06:13:55
> 24 processes:  1 running, 14 sleeping, 9 stopped
> CPU states:  0.4% user,  0.0% nice,  0.0% system,  0.4% interrupt, 99.2%
> idle
> Mem: 18M Active, 106M Inact, 27M Wired, 124K Cache, 35M Buf, 94M Free
> Swap: 513M Total, 513M Free
> 
> 
> while the faster machine shows:
> last pid:  3079;  load averages:  0.00,  0.15,  0.13    up 0+00:13:25
> 06:15:55
> 24 processes:  1 running, 14 sleeping, 9 stopped
> CPU states:  0.0% user,  0.0% nice,  0.4% system,  0.0% interrupt, 99.6%
> idle
> Mem: 11M Active, 36M Inact, 24M Wired, 144K Cache, 35M Buf, 174M Free
> Swap: 513M Total, 513M Free
> 
> 
> 
> Notice in particular the differences in Free and Inactive memory...
> 
> 
> this is completely reproducible.
> 
> anyone have any thoughts?
> I can't think of anything that would affect the vm to this extent..
> 
> they both start out with 222 MB in the 'free' field.
> 
> 
> julian
> 
> 
> 
> 
> 
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-- 
o       Mark Murray
\_
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