[Biojava-l] Elapsed time of feature filtering

[Y D Sun]

I find that the elapsed time of filtering CDS for a sequence is
proportional to the total number of sequences stored in a database. For
exmaple, when there is only one sequence in the database, the filtering
takes 5 seconds. If one more sequence is added to the DB, the filtering
time for one sequence will take about 10 seconds. When there are 3
sequences in DB, the filtering time will be about 15 seconds.

What is the cause of such a problem? 

George