STINNER Victor added the comment:
Results on Windows 7.
Common platform:
Python unicode implementation: PEP 393
Timer info: namespace(adjustable=False, implementation='QueryPerformanceCounter(
)', monotonic=True, resolution=1e-08)
Timer: time.perf_counter
Platform: Windows-7-6.1.7601-SP1
CFLAGS: None
Bits: int=32, long=32, long long=64, size_t=32, void*=32
Platform of campaign pyaccu:
Date: 2013-11-07 08:55:58
Python version: 3.4.0a3+ (default, Nov 7 2013, 08:55:41) [MSC v.1600 32 bit (Int
el)]
Timer precision: 4.59 us
SCM: hg revision=97675195997e branch=default date="2013-10-11 23:50 +0200"
Platform of campaign writer:
Date: 2013-11-07 08:55:12
Python version: 3.4.0a3+ (default, Nov 7 2013, 08:53:13) [MSC v.1600 32 bit (Int
el)]
Timer precision: 4.55 us
SCM: hg revision=97675195997e+ branch=default date="2013-10-11 23:50 +0200"
-----------------------------+-------------+---------------
Tests | pyaccu | writer
-----------------------------+-------------+---------------
list("a") | 713 ns (*) | 588 ns (-17%)
list("abc") | 984 ns (*) | 844 ns (-14%)
["a"]*(100) | 12 us (*) | 9.3 us (-23%)
["abc"]*(100) | 12.6 us (*) | 10.3 us (-18%)
["a" * 100]*(100) | 38.7 us (*) | 39.1 us
["a"]*(10**6) | 111 ms (*) | 91.2 ms (-18%)
["abc"]*(10**6) | 120 ms (*) | 103 ms (-14%)
["a" * 100]*(10**5) | 51.9 ms (*) | 58.8 ms (+13%)
list(range(10**6)) | 165 ms (*) | 152 ms (-8%)
list(map(str, range(10**6))) | 139 ms (*) | 124 ms (-11%)
-----------------------------+-------------+---------------
Total | 588 ms (*) | 530 ms (-10%)
-----------------------------+-------------+---------------
The following test is probably worse because of the bad performances of
realloc() on Windows:
["a" * 100]*(10**5) | 51.9 ms (*) | 58.8 ms (+13%)
----------
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19513>
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