try a really fast loop to see how it works out

cmd.go

@@ -149,21 +149,31 @@ func PathRunRealtime(pwd string, args []string) cmd.Status {
 	}
 	statusChan := findCmd.Start() // non-blocking
 
-	ticker := time.NewTicker(500 * time.Millisecond)
+	ticker := time.NewTicker(5 * time.Millisecond)
 
 	// this is interesting, maybe useful, but wierd, but neat. interesting even
 	// Print last line of stdout every 2s
 	go func() {
+		// loop very quickly, but only print the line if it changes
+		var lastout string
+		var lasterr string
 		for range ticker.C {
 			status := findCmd.Status()
 			n := len(status.Stdout)
 			if n != 0 {
-				log.Info(status.Stdout[n-1])
-				// fmt.Printf("status", status.Exit, "complete =", status.Complete)
+				newline := status.Stdout[n-1]
+				if lastout != newline {
+					lastout = newline
+					log.Info(lastout)
+				}
 			}
 			n = len(status.Stderr)
 			if n != 0 {
-				log.Info(status.Stderr[n-1])
+				newline := status.Stderr[n-1]
+				if lasterr != newline {
+					lasterr = newline
+					log.Info(lasterr)
+				}
 			}
 			if status.Complete {
 				return