Date: Fri, 20 Mar 1998 22:46:08 +0000 (GMT) From: Rob Hartill <robh@imdb.com> To: stable@FreeBSD.ORG Subject: Re: No disk cache after memory upgrade (2.2/pii-300/512mb) Message-ID: <Pine.BSF.3.96.980320224403.10636B-100000@localhost> In-Reply-To: <Pine.BSF.3.96.980320201916.5924A-100000@Jupiter.planet-three.com>
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On Fri, 20 Mar 1998, Scot Elliott wrote: > 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? Strangely, after about 24 hours of being cache-less, it suddenly came to life again. I'm wondering if it's just not reporting the cache for some unknown reason. > 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 the most out of date server showed no sign on any 'Cache' being used 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. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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