#h      event   clock   absdiff pctdiff
_null_getpage+128       815812813.281756        0       0
_null_getpage+128       815812813.328709        0.046953        5.7554e-09
_null_getpage+128       815812813.353830        0.072074        8.8346e-09
_null_getpage+128       815812813.357169        0.075413        9.2439e-09
_null_getpage+128       815812813.375844        0.094088        1.1533e-08
_null_getpage+128       815812813.378358        0.096602        1.1841e-08
#  | /home/johnh/BIN/DB/dbrow 
#  | /home/johnh/BIN/DB/dbcol event clock
#  | dbrowdiff clock