On 10/6/05, M.-A. Lemburg <[EMAIL PROTECTED]> wrote: > Hye-Shik Chang wrote: > > (encoding, fastmap codec) > > > > % ./python Lib/timeit.py -s "s='a'*53*1024; e='iso8859_10_fc'; > > u=unicode(s, e)" "u.encode(e)" > > 1000 loops, best of 3: 536 usec per loop > > > > (encoding, utf-8 codec) > > > > % ./python Lib/timeit.py -s "s='a'*53*1024; e='utf_8'; u=unicode(s, > > e)" "u.encode(e)" > > 1000 loops, best of 3: 1.5 msec per loop > > I wonder why the UTF-8 codec is slower than the fastmap > codec in this case.
I guess that resizing made the difference. fastmap encoder doesn't resize the output buffer at all in the test case while UTF-8 encoder allocates 4*53*1024 bytes and resizes it to 53*1024 bytes in the end. Hye-Shik _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
