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Date:      Fri, 20 Mar 1998 20:20:32 +0000 (GMT)
From:      Scot Elliott <scot@poptart.org>
To:        stable@FreeBSD.ORG
Subject:   Re: No disk cache after memory upgrade (2.2/pii-300/512mb)
Message-ID:  <Pine.BSF.3.96.980320201916.5924A-100000@Jupiter.planet-three.com>
In-Reply-To: <Pine.BSF.3.96.980320162905.2937D-100000@localhost>

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Yep... I get the same thing... one of our machines just sits there, always
with free memory.  It's never doing anything (it's rare to see any load at
all) - the same with the others - but their cache fills up and they never
have free memory.

Bizare eh?


Scot


On Fri, 20 Mar 1998, Rob Hartill wrote:

> Date: Fri, 20 Mar 1998 16:41:21 +0000 (GMT)
> From: Rob Hartill <robh@imdb.com>
> To: stable@FreeBSD.ORG
> Subject: No disk cache after memory upgrade (2.2/pii-300/512mb)
> 
> 
> Yesterday we added 256mb to a batch of servers, doubling them to 512k.
> 
> One of the batch was running an older kernel/world than the others. The
> older one was circa Dec97 (cvsup'ed 2.2 stable) and the others were circa
> Feb 98.
> 
> We removed "options         BOUNCE_BUFFERS" from the kernel after
> reading about problem with >256mb.
> 
> Installing the same kernel on all machines, they all rebooted fine, however
> the most out of date server showed no sign on any 'Cache' being used
> under 'top', instead it showed tons of 'Free' memory. The other machines
> filled their caches up just fine (which was our primary goal in adding
> more memory).
> 
> Thinking the kernel (taken from one of the more recent servers) might not
> quite match with the rest of the world, we built a new kernel on the older
> box, same problem; next we tried a complete make world on cvsup'ed
> sources from yesterday (2.2.6-BETA) - same problem.
> 
> Anyone seen this ?
> 
> The /etc/rc* files look up to date.
> 
> The machines are 300mhz PIIs.
> 
> baffled,
> rob
> --
> Rob Hartill                              Internet Movie Database (Ltd)
> http://www.moviedatabase.com/   .. a site for sore eyes.
> 
> 
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