From owner-freebsd-questions@FreeBSD.ORG  Tue Feb 23 20:24:16 2010
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Date: Tue, 23 Feb 2010 12:24:15 -0800
From: Yuri <yuri@rawbw.com>
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Subject: Is there a command to load all swap into the memory?
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I am asking out of curiosity.
'top' describes the memory state on my machine like this:
Mem: 1085M Active, 196M Inact, 301M Wired, 36M Cache, 112M Buf, 1366M Free
Swap: 16G Total, 757M Used, 16G Free, 4% Inuse

There is enough space in memory to load back all swap. Is there a 
command to do that for all swap?
This will speed up immediate system response in the future.

Yuri