On 1月4日, 下午10时17分, Fredrik Lundh <[EMAIL PROTECTED]> wrote: > wanzathe wrote: > > i have a binary file named test.dat including 9600000 records. > > the record format is int a + int b + int c + int d > > i want to build a dict like this: key=int a,int b values=int c,int d > > i choose using bsddb and it takes about 140 seconds to build the dict. > > you're not building a dict, you're populating a persistent database. > storing ~70000 records per second isn't that bad, really... > > > what can i do if i want to make my program run faster? > > or is there another way i can choose? > > why not just use a real Python dictionary, and the marshal module for > serialization? > > </F>
hi,Fredrik Lundn you are right, i'm populating a persistent database. i plan to use a real Python dictionary and use cPickle for serialization at first, but it did not work because the number of records is too large. Thanks -- http://mail.python.org/mailman/listinfo/python-list
