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| author | Giampaolo Rodola <g.rodola@gmail.com> | 2018-11-12 14:18:15 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-11-12 14:18:15 (GMT) |
| commit | 19c46a4c96553b2a8390bf8a0e138f2b23e28ed6 (patch) | |
| tree | f8c59fab93db82769dc938e1c5f28961c165292c /Misc | |
| parent | cd449806fac1246cb7b4d392026fe6986ec01fb7 (diff) | |
| download | cpython-19c46a4c96553b2a8390bf8a0e138f2b23e28ed6.zip cpython-19c46a4c96553b2a8390bf8a0e138f2b23e28ed6.tar.gz cpython-19c46a4c96553b2a8390bf8a0e138f2b23e28ed6.tar.bz2 | |
bpo-33695 shutil.copytree() + os.scandir() cache (#7874)
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Library/2018-06-23-12-47-37.bpo-33695.seRTxh.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Library/2018-06-23-12-47-37.bpo-33695.seRTxh.rst b/Misc/NEWS.d/next/Library/2018-06-23-12-47-37.bpo-33695.seRTxh.rst new file mode 100644 index 0000000..2195045 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2018-06-23-12-47-37.bpo-33695.seRTxh.rst @@ -0,0 +1,7 @@ +:func:`shutil.copytree` uses :func:`os.scandir` function and all copy +functions depending from it use cached :func:`os.stat` values. The speedup +for copying a directory with 8000 files is around +9% on Linux, +20% on +Windows and + 30% on a Windows SMB share. Also the number of :func:`os.stat` +syscalls is reduced by 38% making :func:`shutil.copytree` especially faster +on network filesystems. +(Contributed by Giampaolo Rodola' in :issue:`33695`.) |