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Date:      Tue, 16 Dec 2008 12:19:13 +0200
From:      "Yony Yossef" <yonyossef.lists@gmail.com>
To:        "'pluknet'" <pluknet@gmail.com>, "Yony Yossef" <yonyossef.lists@gmail.com>
Cc:        freebsd-net@freebsd.org
Subject:   RE: About netstat -m: What is "mbuf+clusters out of packet secondary zone in use" ?
Message-ID:  <000b01c95f67$c06737f0$220f000a@mtl.com>
In-Reply-To: <a31046fc0812151017v573c4ac1o447a15e66b1c1c27@mail.gmail.com>
References:  <Aclevm7Ij8iAClQPR4m2nooLNbPwGg==> <000501c95ebe$709bddb0$220f000a@mtl.com> <a31046fc0812151017v573c4ac1o447a15e66b1c1c27@mail.gmail.com>

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> > Hi All,
> >
> > I'm testing an Ethernet driver on FreeBSD 6.3.
> >
> > Running netstat -m during an ethernt stress test I see that the 
> > "mbuf+clusters out of packet secondary zone in use" number 
> is growing 
> > gradualy.
> > Problem is it never goes down after I stop the test, so 
> it's pushing 
> > the "mbufs in use" up until the following stress test 
> iterations reach 
> > the OS limit.
> > What does this number mean?
> >
> >
> > 506391/126009/632400 mbufs in use (current/cache/total)
> > 141035/121109/262144/262144 mbuf clusters in use 
> > (current/cache/total/max) 131054/610 mbuf+clusters out of packet 
> > secondary zone in use (current/cache)
> >
> 
> Can you say what the ethernet stress test do you use?
> 

I'm using a bi-directional test running multiple processes of this ping
command:

/sbin/ping -c 5000 -i 0.0001 -s 65507 -l 100 <ip>




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