STINNER Victor added the comment: Some microbenchmarks: bench_fast.py.
== Python 3.6 / Python 3.6 FASTCALL == ----------------------------------+--------------+--------------- Tests | /tmp/default | /tmp/fastcall ----------------------------------+--------------+--------------- filter | 241 us (*) | 166 us (-31%) map | 205 us (*) | 168 us (-18%) sorted(list, key=lambda x: x) | 242 us (*) | 162 us (-33%) sorted(list) | 27.7 us (*) | 27.8 us b=MyBytes(); bytes(b) | 549 ns (*) | 533 ns namedtuple.attr | 2.03 us (*) | 1.56 us (-23%) object.__setattr__(obj, "x", 1) | 347 ns (*) | 218 ns (-37%) object.__getattribute__(obj, "x") | 331 ns (*) | 200 ns (-40%) getattr(1, "real") | 267 ns (*) | 150 ns (-44%) bounded_pymethod(1, 2) | 193 ns (*) | 190 ns unbound_pymethod(obj, 1, 2 | 195 ns (*) | 192 ns ----------------------------------+--------------+--------------- Total | 719 us (*) | 526 us (-27%) ----------------------------------+--------------+--------------- == Compare Python 3.4 / Python 3.6 / Python 3.6 FASTCALL == Common platform: Timer: time.perf_counter Python unicode implementation: PEP 393 Timer info: namespace(adjustable=False, implementation='clock_gettime(CLOCK_MONOTONIC)', monotonic=True, resolution=1e-09) CPU model: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz Platform: Linux-4.4.4-301.fc23.x86_64-x86_64-with-fedora-23-Twenty_Three SCM: hg revision=abort: repository . not found! tag=abort: repository . not found! branch=abort: repository . not found! date=abort: no repository found in '/home/haypo/prog/python' (.hg not found)! Bits: int=32, long=64, long long=64, size_t=64, void*=64 Platform of campaign /tmp/py34: Python version: 3.4.3 (default, Jun 29 2015, 12:16:01) [GCC 5.1.1 20150618 (Red Hat 5.1.1-4)] CFLAGS: -Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv Timer precision: 78 ns Date: 2016-04-22 13:37:52 Platform of campaign /tmp/default: Python version: 3.6.0a0 (default:496e094f4734, Apr 22 2016, 02:18:13) [GCC 5.3.1 20151207 (Red Hat 5.3.1-2)] CFLAGS: -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes Timer precision: 103 ns Date: 2016-04-22 13:38:07 Platform of campaign /tmp/fastcall: Python version: 3.6.0a0 (default:ad4a53ed1fbf, Apr 22 2016, 12:42:15) [GCC 5.3.1 20151207 (Red Hat 5.3.1-2)] Timer precision: 99 ns CFLAGS: -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes Date: 2016-04-22 13:38:21 ----------------------------------+-------------+----------------+--------------- Tests | /tmp/py34 | /tmp/default | /tmp/fastcall ----------------------------------+-------------+----------------+--------------- filter | 325 us (*) | 241 us (-26%) | 166 us (-49%) map | 260 us (*) | 205 us (-21%) | 168 us (-35%) sorted(list, key=lambda x: x) | 354 us (*) | 242 us (-32%) | 162 us (-54%) sorted(list) | 46.9 us (*) | 27.7 us (-41%) | 27.8 us (-41%) b=MyBytes(); bytes(b) | 839 ns (*) | 549 ns (-35%) | 533 ns (-36%) namedtuple.attr | 4.51 us (*) | 2.03 us (-55%) | 1.56 us (-65%) object.__setattr__(obj, "x", 1) | 447 ns (*) | 347 ns (-22%) | 218 ns (-51%) object.__getattribute__(obj, "x") | 401 ns (*) | 331 ns (-17%) | 200 ns (-50%) getattr(1, "real") | 236 ns (*) | 267 ns (+13%) | 150 ns (-36%) bounded_pymethod(1, 2) | 249 ns (*) | 193 ns (-22%) | 190 ns (-24%) unbound_pymethod(obj, 1, 2 | 251 ns (*) | 195 ns (-22%) | 192 ns (-23%) ----------------------------------+-------------+----------------+--------------- Total | 993 us (*) | 719 us (-28%) | 526 us (-47%) ----------------------------------+-------------+----------------+--------------- ---------- Added file: http://bugs.python.org/file42567/bench_fast.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26814> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
