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| author | Vito Caputo <vcaputo@pengaru.com> | 2017-07-17 15:05:52 -0700 |
|---|---|---|
| committer | Sven Eden <yamakuzure@gmx.net> | 2017-08-10 10:07:19 +0200 |
| commit | dc531f01b274c5317d90e7f96275af28fd1ceda2 (patch) | |
| tree | 6ddbcc9efa630c754175954b62240f61dd09edee /src/basic/socket-util.c | |
| parent | dc430fe0f27b980fe47e393c9a66fde2145d4a7a (diff) | |
basic: use _unlocked() stdio in strip_tab_ansi() (#6385)
Trivial performance boost by explicitly bypassing the implicit
locking of stdio.
This significantly affects common cases of `journalctl` usage:
Before:
# time ./journalctl -b -1 > /dev/null
real 0m26.628s
user 0m26.495s
sys 0m0.125s
# time ./journalctl -b -1 > /dev/null
real 0m27.069s
user 0m26.936s
sys 0m0.134s
# time ./journalctl -b -1 > /dev/null
real 0m26.727s
user 0m26.607s
sys 0m0.119s
After:
# time ./journalctl -b -1 > /dev/null
real 0m23.394s
user 0m23.244s
sys 0m0.142s
# time ./journalctl -b -1 > /dev/null
real 0m23.283s
user 0m23.160s
sys 0m0.121s
# time ./journalctl -b -1 > /dev/null
real 0m23.274s
user 0m23.125s
sys 0m0.144s
Fixes https://github.com/elogind/elogind/issues/6341
Diffstat (limited to 'src/basic/socket-util.c')
0 files changed, 0 insertions, 0 deletions