swap space utilization under 4.2

[Chris Torek]

At the expense of a much larger swap map, you can reduce DMMAX and
increase NDMAP accordingly; that will reduce lossage due to large
chunks of swap used for small chunks of memory.  Without looking at the
pstat source, I would guess that the "wasted" statistic is generated by
finding such chunks and figuring out what would be recovered if all
blocks were of size DMMIN.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 4251)
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