152 is faster that 221 ? I think not ...

[Dave Harrison]

Im writing a script that goes through and reads zipped log.  So far so cool.

Now the current install on the server is 1.5.2 which is nice, but I was hoping 2.2.1 would be faster at reading the logs by virtue of xreadlines and general tweaking over time.

But to my surprise and mild horror 1.5.2 was clocking horrendously faster than 2.2.1 ....

Whats the deal ? It may be something basic Im overlooking but I cant see why 2.2.1 should not at least be the same speed as 1.5.2.

My basic timing code is as follows :


FOR 1.5.2 :
-------------------------------------------
import gzip, time
list = []
file = gzip.open('20010615.gz')
start = time.clock()
for line in file.readlines():
        list.append(line)
stop = time.clock()
total = stop - start
print
print '1.5.2 Running Time : '+str(total)
print
-------------------------------------------


FOR 2.2.1 :
-------------------------------------------
import gzip, time, xreadlines
list = []
file = gzip.open('20010615.gz')
start = time.clock()
for line in xreadlines.xreadlines(file):
        list.append(line)
stop = time.clock()
total = stop-start
print
print 'Total running time 2.2.1a : '+str(total)
print
-------------------------------------------

The time come out at :
1.5.2 -> 3 seconds or so
2.2.1 -> 13 seconds or so

Help ?

Dave