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Date:      Mon, 6 May 1996 09:38:01 -0400 (EDT)
From:      Charles Owens <owensc@enc.edu>
To:        "Matthew N. Dodd" <winter@jurai.net>
Cc:        David Greenman <davidg@root.com>, freebsd-current@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG
Subject:   Re: MBUFs leaking? 
Message-ID:  <Pine.FBS.3.93.960506091022.1525C-100000@dingo.enc.edu>
In-Reply-To: <Pine.BSI.3.93.960506001206.24623F-100000@sasami>

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On Mon, 6 May 1996, Matthew N. Dodd wrote:

> On Sun, 5 May 1996, David Greenman wrote:
> > >to obey the options NMBCLUSTERS and only allocates about 180k to
> > >mbufs.  I've played with maxusers, NMBCLUSTERS, and others and no effect.
> > 
> >    I can't explain this. There must be something interacting with this, like a
> > user process limit or something. There haven't been any kernel changes that
> > would affect this.
> 

I am seeing the same behavior as well!  I also have NMBCLUSTERS set to
4096 but according to 'netstat -m', only 156k is allocated to mbufs!!  I
was wondering if I was interpretting it correctly.  Any theories? 

Here's the netstat output:

36 mbufs in use:
        11 mbufs allocated to data
        9 mbufs allocated to packet headers
        12 mbufs allocated to protocol control blocks
        4 mbufs allocated to socket names and addresses
8/76 mbuf clusters in use
156 Kbytes allocated to network (13% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines

I'm running 2.1-stable (supped 3/16/96):  Here's the top part of the
kernel config:

machine         "i386"
#cpu            "I386_CPU"
#cpu            "I486_CPU"
cpu             "I586_CPU"
ident           POBOX
maxusers        100               # <---- Could this have an effect?

options         "NMBCLUSTERS=4096"      #Increase number mbuf clusters
#options                MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
options         FFS                     #Berkeley Fast Filesystem
options         NFS                     #Network Filesystem
options         "CD9660"                #ISO 9660 Filesystem
options         PROCFS                  #Process filesystem
options         "COMPAT_43"             #Compatible with BSD 4.3
options         "SCSI_DELAY=5"          #Be pessimistic about Joe SCSI device
options         BOUNCE_BUFFERS          #include support for DMA bounce buffers
#options                UCONSOLE                #Allow users to grab the console
options         QUOTA

options         SYSVSHM
options         SYSVSEM
options         SYSVMSG


later,
---
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  Charles Owens					 Email:  owensc@enc.edu
                                       "I read somewhere to learn is to
  Information Technology Services     remember... and I've learned that
  Eastern Nazarene College            we've all forgot..."   - King's X
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