perf: lazy atexit setup
#21053
Merged
perf: lazy atexit setup
#21053
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/bench startup_nop_empty |
startup_nop_empty
start: id: server: |
mmastrac
reviewed
Nov 2, 2023
mmastrac
reviewed
Nov 3, 2023
mmastrac
reviewed
Nov 3, 2023
| extern "C" fn reset_stdio() { | ||
| // SAFETY: Reset the stdio state. | ||
| unsafe { tcsetattr(libc::STDIN_FILENO, 0, &ORIG_TERMIOS.unwrap()) }; | ||
| static ORIG_TERMIOS: OnceCell<Option<termios>> = OnceCell::new(); |
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libc::atexitincurrs 2% dyld cost at startup on macOS. This PR moves the setup to when the tty mode is changed using op_stdin_set_raw.