STINNER Victor added the comment: Ok, here is a patch which optimizes surrogatepass too.
Result of bench_utf8.py. Common platform: CFLAGS: -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes 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 Bits: int=32, long=64, long long=64, size_t=64, void*=64 Timer: time.perf_counter Platform: Linux-4.1.6-200.fc22.x86_64-x86_64-with-fedora-22-Twenty_Two Python unicode implementation: PEP 393 Platform of campaign before: SCM: hg revision=8317796ca004 tag=tip branch=default date="2015-09-22 10:46 +0200" Python version: 3.6.0a0 (default:8317796ca004, Sep 22 2015, 11:33:04) [GCC 5.1.1 20150618 (Red Hat 5.1.1-4)] Date: 2015-09-22 11:33:12 Timer precision: 73 ns Platform of campaign after: SCM: hg revision=8317796ca004+ tag=tip branch=default date="2015-09-22 10:46 +0200" Python version: 3.6.0a0 (default:8317796ca004+, Sep 22 2015, 11:31:04) [GCC 5.1.1 20150618 (Red Hat 5.1.1-4)] Date: 2015-09-22 11:31:58 Timer precision: 54 ns ------------------+-------------+--------------- ignore | before | after ------------------+-------------+--------------- 100 x 10**1 bytes | 8.85 us (*) | 857 ns (-90%) 100 x 10**3 bytes | 780 us (*) | 45.5 us (-94%) 100 x 10**2 bytes | 78.7 us (*) | 4.81 us (-94%) 100 x 10**4 bytes | 8.13 ms (*) | 456 us (-94%) ------------------+-------------+--------------- Total | 9 ms (*) | 507 us (-94%) ------------------+-------------+--------------- ------------------+-------------+--------------- replace | before | after ------------------+-------------+--------------- 100 x 10**1 bytes | 10 us (*) | 939 ns (-91%) 100 x 10**3 bytes | 898 us (*) | 54.1 us (-94%) 100 x 10**2 bytes | 90.5 us (*) | 5.72 us (-94%) 100 x 10**4 bytes | 9.55 ms (*) | 536 us (-94%) ------------------+-------------+--------------- Total | 10.6 ms (*) | 597 us (-94%) ------------------+-------------+--------------- ------------------+-------------+--------------- surrogateescape | before | after ------------------+-------------+--------------- 100 x 10**1 bytes | 10.4 us (*) | 919 ns (-91%) 100 x 10**3 bytes | 930 us (*) | 55.2 us (-94%) 100 x 10**2 bytes | 93.1 us (*) | 5.84 us (-94%) 100 x 10**4 bytes | 9.85 ms (*) | 552 us (-94%) ------------------+-------------+--------------- Total | 10.9 ms (*) | 614 us (-94%) ------------------+-------------+--------------- ------------------+-------------+--------------- surrogatepass | before | after ------------------+-------------+--------------- 100 x 10**1 bytes | 4.83 us (*) | 963 ns (-80%) 100 x 10**3 bytes | 353 us (*) | 42.6 us (-88%) 100 x 10**2 bytes | 36.5 us (*) | 4.69 us (-87%) 100 x 10**4 bytes | 4.17 ms (*) | 424 us (-90%) ------------------+-------------+--------------- Total | 4.56 ms (*) | 472 us (-90%) ------------------+-------------+--------------- ------------------+-------------+-------------- backslashreplace | before | after ------------------+-------------+-------------- 100 x 10**1 bytes | 10.9 us (*) | 10.1 us (-7%) 100 x 10**3 bytes | 944 us (*) | 853 us (-10%) 100 x 10**2 bytes | 93.8 us (*) | 87.5 us (-7%) 100 x 10**4 bytes | 9.92 ms (*) | 9.04 ms (-9%) ------------------+-------------+-------------- Total | 11 ms (*) | 9.99 ms (-9%) ------------------+-------------+-------------- -----------------+-------------+--------------- Summary | before | after -----------------+-------------+--------------- ignore | 9 ms (*) | 507 us (-94%) replace | 10.6 ms (*) | 597 us (-94%) surrogateescape | 10.9 ms (*) | 614 us (-94%) surrogatepass | 4.56 ms (*) | 472 us (-90%) backslashreplace | 11 ms (*) | 9.99 ms (-9%) -----------------+-------------+--------------- Total | 46 ms (*) | 12.2 ms (-73%) -----------------+-------------+--------------- ---------- Added file: http://bugs.python.org/file40545/utf8-3.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24870> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
