Merge branch 'rs/progress-overall-throughput-at-the-end' into maint

The progress meter did not give a useful output when we haven't had
0.5 seconds to measure the throughput during the interval.  Instead
show the overall throughput rate at the end, which is a much more
useful number.

* rs/progress-overall-throughput-at-the-end:
  progress: show overall rate in last update

progress.c

@@ -36,6 +36,7 @@ struct progress {
 	unsigned delay;
 	unsigned delayed_percent_treshold;
 	struct throughput *throughput;
+	uint64_t start_ns;
 };
 
 static volatile sig_atomic_t progress_update;
@@ -221,6 +222,7 @@ struct progress *start_progress_delay(const char *title, unsigned total,
 	progress->delayed_percent_treshold = percent_treshold;
 	progress->delay = delay;
 	progress->throughput = NULL;
+	progress->start_ns = getnanotime();
 	set_progress_signal();
 	return progress;
 }
@@ -247,8 +249,10 @@ void stop_progress_msg(struct progress **p_progress, const char *msg)
 		struct throughput *tp = progress->throughput;
 
 		if (tp) {
-			unsigned int rate = !tp->avg_misecs ? 0 :
-					tp->avg_bytes / tp->avg_misecs;
+			uint64_t now_ns = getnanotime();
+			unsigned int misecs, rate;
+			misecs = ((now_ns - progress->start_ns) * 4398) >> 32;
+			rate = tp->curr_total / (misecs ? misecs : 1);
 			throughput_string(&tp->display, tp->curr_total, rate);
 		}
 		progress_update = 1;