Variable: fast-read-process-output

fast-read-process-output is a variable defined in process.c.

Value

t

Documentation

Non-nil to optimize the insertion of process output.

We skip calling internal-default-process-filter and don't allocate the Lisp string that would be used as its argument. Only affects the case of asynchronous process with the default filter.

Probably introduced at or before Emacs version 30.1.

Source Code

// Defined in /usr/src/emacs/src/process.c
  DEFVAR_BOOL ("fast-read-process-output", fast_read_process_output,
	       doc: /* Non-nil to optimize the insertion of process output.
We skip calling `internal-default-process-filter' and don't allocate
the Lisp string that would be used as its argument.  Only affects the
case of asynchronous process with the default filter.  */);