New submission from Марк Коренберг: Results or running attached program: $ python2.7 qwe.py TCP mode, makefile method. 198807.2 lines per second (189.6 MB/s). Delay is 5.03 seconds TCP mode, fdopen method. 1041666.7 lines per second (993.4 MB/s). Delay is 0.96 seconds UNIX mode, makefile method. 2040816.3 lines per second (1946.3 MB/s). Delay is 0.49 seconds UNIX mode, fdopen method. 1923076.9 lines per second (1834.0 MB/s). Delay is 0.52 seconds
$ python3.2 qwe.py TCP mode, makefile method. 275482.1 lines per second (262.7 MB/s). Delay is 3.63 seconds TCP mode, fdopen method. 909090.9 lines per second (867.0 MB/s). Delay is 1.10 seconds UNIX mode, makefile method. 323624.6 lines per second (308.6 MB/s). Delay is 3.09 seconds UNIX mode, fdopen method. 1694915.3 lines per second (1616.4 MB/s). Delay is 0.59 seconds ---------------------------------------------- 1. in every case, socket.makefile() is MUCH slower than os.fdopen() when used as "for line in fileobject" 2. compare speeds between python 2.7 and python 3.2 in same operation. Especially, socketpair+makefile 3. Why not to return os.fdopen() for sockets when socket.makefile() called on unix systems? ---------- components: IO, Library (Lib) files: qwe.py messages: 192044 nosy: mmarkk priority: normal severity: normal status: open title: for line in socket.makefile() speed degradation type: performance versions: Python 3.2, Python 3.3, Python 3.4, Python 3.5 Added file: http://bugs.python.org/file30731/qwe.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18329> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
