#h      absdiff
0
0.046953
0.072074
0.075413
0.094088
0.096602
#  | /home/johnh/BIN/DB/dbrow 
#  | /home/johnh/BIN/DB/dbcol event clock
#  | dbrowdiff clock
#  | /home/johnh/BIN/DB/dbcol absdiff