Enable TCP_NODELAY

degesch.c

@@ -4732,6 +4732,12 @@ irc_finish_connection (struct server *s, int socket)
 {
 	struct app_context *ctx = s->ctx;
 
+	// Most of our output comes from the user one full command at a time and we
+	// use output buffering, so it makes a lot of sense to avoid these delays
+	int yes = 1;
+	soft_assert (setsockopt (socket, IPPROTO_TCP, TCP_NODELAY,
+		&yes, sizeof yes) != -1);
+
 	set_blocking (socket, false);
 	s->socket = socket;
 	s->transport = get_config_boolean (s->config, "tls")