How to Detemine Paging Statistics:
% vmstat 5 2
proc memory page
r b w avm fre re at pi po fr de sr ...
0 1 0 0 280 0 0 64 80 208 8 82 ...
1 0 0 0 576 1 2 88 64 96 0 115 ...re - number of pages reclaimed
at - number of pages attached
pi - kilobytes paged in
po - kilobytes paged out
fr - kilobyes palced on the free list
de - kilobytes of " predicted short-term memory shortfall " (best param, should< 100)
sr - number of pages scanned by the clock algorithm