snapshot_time:         1251851453.382275 (secs.usecs)
pending issued pages:           0
hits                      7301235
misses                    10546
readpage not consecutive  14369
miss inside window        1
failed grab_cache_page    6285314
failed lock match         0
read but discarded        98955
zero length file          0
zero size window          3495
read-ahead to EOF         172
hit max r-a issue         783042
wrong page from grab_cache_page 0