I'm impressed! Just tried to plot a graph with rather too many points in
it and:

% swapctl -lk
Device      1K-blocks     Used    Avail Capacity  Priority
/dev/sd0b      102400   102400        0   100%    0
/dev/sd1b      102750   102748        2   100%    1
Total          205150   205148        2   100%

and then

gnuplot> plot "gvswV16000.300"
Killed

ie., usable computer (throughout its ordeal in fact). (on 1.4"alpha"/i386)

Cheers,

Patrick