[HEADS-UP] mbuma is in the tree

Jun Kuriyama kuriyama at imgsrc.co.jp
Thu Jun 3 22:50:30 GMT 2004

At Wed, 2 Jun 2004 09:07:46 +0000 (UTC),
Frode Nordahl wrote:
> I'm running two NFS servers on 5.2.1-RELEASE (with the old mbuf code 
> obviously), and I see the problem with leakage here.  Don't know a way 
> to reproduce it yet, but it happends over time. This happends both on a 
> UP and a SMP machine.
> After more than a month of uptime, the mbuf map starts to get eaten up.
> Is there any way to look at the mbuf cache while the system is running 
> to see what is in there?

It looks your host2 has normal value of mbuf usage.  Is there the
difference of apprication with these hosts?

I'm using net-snmp and mrtg to collect statistics of mbuf/mbufc
usage.  If you can find any trends (increasing at specific time period
or so), it would be help for further debugging.

---- mrtg.cfg
Target[mbuf]:hrStorageUsed.1&hrStorageUsed.4:public at server
MaxBytes1[mbuf]: 40960
MaxBytes2[mbuf]: 20480
Options[mbuf]: gauge,nopercent,growright
Title[mbuf]: Number of mbufs in use
YLegend[mbuf]: mbufs
LegendI[mbuf]:   mbufs in use
LegendO[mbuf]:   mbuf clusters in use
PageTop[mbuf]: <H1>Number of mbufs in use</H1>

Jun Kuriyama <kuriyama at imgsrc.co.jp> // IMG SRC, Inc.
             <kuriyama at FreeBSD.org> // FreeBSD Project

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