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Re: Checking mbuf cluster usage
ef%math.uni-bonn.de@localhost (Edgar =?iso-8859-1?B?RnXf?=) writes:
>Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
>mclpl 2048 108878 0 108234 10005 9679 326 1471 4 261858 4
>so I guess the number I'm looking for is some term in (108878-108234), 2048, 326 and 261858.
>I have kern.mbuf.nmbclusters = 523716, but fail to corelate that with any of the numbers above.
This is simple:
261858 * 2 = 523716
or in detail with MCLBYTES = 2048:
nmbclusters * MCLBYTES = Maxpg * PageSz
where PageSz is shown by vmstat -mW as 4096. This is the "pool page size",
often but not necessarily identical to the CPU page size.
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