About netstat -m: What is "mbuf+clusters out of packet secondary zone in use" ?

[pluknet]

2008/12/15 Yony Yossef <yonyossef.lists at gmail.com>:
> 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?

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