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Re: Checking mbuf cluster usage (Edgar =?iso-8859-1?B?RnXf?=) writes:


>> or in detail with MCLBYTES = 2048:
>That 2048 is from the "Size" column, right?

Vice versa :) MCLBYTES is the definition and the pool is create with an
item size of MCLBYTES.

>> where PageSz is shown by vmstat -mW as 4096.
>Oh, I didn't know about -W.

>What exactly is the "Util" column in -W output?

(Requests - Releases) * Size / (Npage * PageSz).

Pools are allocated in "pool pages", so that's the
ratio of used memory vs. memory taken from the VM

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