Notices by Wez Furlong :terminal: (wez@fosstodon.org)

@codewiz In wezterm, there is a separate pty reading thread that parses the incoming data before handing it to the model. That delay catches fragmented writes to reduce flicker and tearing when an application repaints the whole screen but uses small writes to do so.

After each read, unless we are over mux_output_parser_buffer_size (128k by default) we wait that 3ms to see if more data is following to batch it together.

Using https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec skips this logic.

@codewiz note that wezterm deliberately delays escape sequence processing in order to get better batching and less tearing with non-synchronized output. You can configure the batching delay using the mux_output_parser_coalesce_delay_ms option. See https://github.com/wez/wezterm/issues/2443 for more information.

:wave: I've been contributing to FOSS since the '90s

My current major free time project is wezterm, a cross platform terminal emulator that happens to be implemented in Rust.

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