Antoine Pitrou <pit...@free.fr> added the comment: > Attached result of a run with stdlib gzip module only. Results > indicate that performance still is as bad as on Python 2. The Python 3 > gzip module also still makes use of tell() ans seek(). So both > argument for including this patch are still valid.
Performance is easily improved by wrapping the file object in a io.BufferedReader or io.BufferedWriter: Text 1 byte block test Original gzip Write: 2.125 s Read: 0.683 s New gzip Write: 0.390 s Read: 0.240 s Text 4 byte block test Original gzip Write: 1.077 s Read: 0.351 s New gzip Write: 0.204 s Read: 0.132 s Text 16 byte block test Original gzip Write: 1.119 s Read: 0.353 s New gzip Write: 0.264 s Read: 0.137 s Still, fixing the seek()/tell() issue would be nice. ---------- title: [gzip] Performance for small reads and fix seek problem -> Performance for small reads and fix seek problem _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue1675951> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
