Remove the c0-* options which never really worked satisfactorily. Going

to try something else...

input.c

@@ -1069,7 +1069,6 @@ input_c0_dispatch(struct input_ctx *ictx)
 	struct screen_write_ctx	*sctx = &ictx->ctx;
 	struct window_pane	*wp = ictx->wp;
 	struct screen		*s = sctx->s;
-	u_int			 trigger;
 
 	log_debug("%s: '%c", __func__, ictx->ch);
 
@@ -1081,7 +1080,7 @@ input_c0_dispatch(struct input_ctx *ictx)
 		break;
 	case '\010':	/* BS */
 		screen_write_backspace(sctx);
-		goto count_c0;
+		break;
 	case '\011':	/* HT */
 		/* Don't tab beyond the end of the line. */
 		if (s->cx >= screen_size_x(s) - 1)
@@ -1098,10 +1097,10 @@ input_c0_dispatch(struct input_ctx *ictx)
 	case '\013':	/* VT */
 	case '\014':	/* FF */
 		screen_write_linefeed(sctx, 0);
-		goto count_c0;
+		break;
 	case '\015':	/* CR */
 		screen_write_carriagereturn(sctx);
-		goto count_c0;
+		break;
 	case '\016':	/* SO */
 		ictx->cell.set = 1;
 		break;
@@ -1113,15 +1112,6 @@ input_c0_dispatch(struct input_ctx *ictx)
 		break;
 	}
 
-	return (0);
-
-count_c0:
-	trigger = options_get_number(&wp->window->options, "c0-change-trigger");
-	if (trigger != 0 && ++wp->changes >= trigger) {
-		wp->flags |= PANE_DROP;
-		window_pane_timer_start(wp);
-	}
-
 	return (0);
 }
 

tmux.1

@@ -2886,24 +2886,6 @@ used when the
 .Ic automatic-rename
 option is enabled.
 .Pp
-.It Ic c0-change-interval Ar interval
-.It Ic c0-change-trigger Ar trigger
-These two options configure a simple form of rate limiting for a pane.
-If
-.Nm
-sees more than
-.Ar trigger
-C0 sequences that modify the screen (for example, carriage returns, linefeeds
-or backspaces) in one millisecond, it will stop updating the pane immediately and
-instead redraw it entirely every
-.Ar interval
-milliseconds.
-This helps to prevent fast output (such as
-.Xr yes 1 )
-overwhelming the terminal.
-The default is a trigger of 250 and an interval of 100.
-A trigger of zero disables the rate limiting.
-.Pp
 .It Ic clock-mode-colour Ar colour
 Set clock colour.
 .Pp

tmux.h

@@ -844,10 +844,6 @@ struct window_pane {
 	char		 tty[TTY_NAME_MAX];
 	int		 status;
 
-	u_int		 changes;
-	struct event	 changes_timer;
-	u_int		 changes_redraw;
-
 	int		 fd;
 	struct bufferevent *event;
 
@@ -2107,7 +2103,6 @@ struct window_pane *window_pane_find_by_id_str(const char *);
 struct window_pane *window_pane_find_by_id(u_int);
 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
 void		 window_pane_destroy(struct window_pane *);
-void		 window_pane_timer_start(struct window_pane *);
 int		 window_pane_spawn(struct window_pane *, int, char **,
 		     const char *, const char *, int, struct environ *,
 		     struct termios *, char **);

window.c

@@ -58,7 +58,6 @@ u_int	next_window_pane_id;
 u_int	next_window_id;
 u_int	next_active_point;
 
-void	window_pane_timer_callback(int, short, void *);
 void	window_pane_read_callback(struct bufferevent *, void *);
 void	window_pane_error_callback(struct bufferevent *, short, void *);
 
@@ -741,9 +740,6 @@ window_pane_destroy(struct window_pane *wp)
 {
 	window_pane_reset_mode(wp);
 
-	if (event_initialized(&wp->changes_timer))
-		evtimer_del(&wp->changes_timer);
-
 	if (wp->fd != -1) {
 		bufferevent_free(wp->event);
 		close(wp->fd);
@@ -877,42 +873,6 @@ window_pane_spawn(struct window_pane *wp, int argc, char **argv,
 	return (0);
 }
 
-void
-window_pane_timer_start(struct window_pane *wp)
-{
-	struct timeval	tv;
-
-	tv.tv_sec = 0;
-	tv.tv_usec = 1000;
-
-	evtimer_del(&wp->changes_timer);
-	evtimer_set(&wp->changes_timer, window_pane_timer_callback, wp);
-	evtimer_add(&wp->changes_timer, &tv);
-}
-
-void
-window_pane_timer_callback(unused int fd, unused short events, void *data)
-{
-	struct window_pane	*wp = data;
-	struct window		*w = wp->window;
-	u_int			 interval, trigger;
-
-	interval = options_get_number(&w->options, "c0-change-interval");
-	trigger = options_get_number(&w->options, "c0-change-trigger");
-
-	if (wp->changes_redraw++ == interval) {
-		wp->flags |= PANE_REDRAW;
-		wp->changes_redraw = 0;
-	}
-
-	if (trigger == 0 || wp->changes < trigger) {
-		wp->flags |= PANE_REDRAW;
-		wp->flags &= ~PANE_DROP;
-	} else
-		window_pane_timer_start(wp);
-	wp->changes = 0;
-}
-
 void
 window_pane_read_callback(unused struct bufferevent *bufev, void *data)
 {