When shares come frequently on more powerful mining hardware the status line doesn't appear for very long and gets drowned out by share information.

Cache the output and display it after each share submission.

main.c

@@ -485,6 +485,13 @@ err_out:
 }
 
 static double total_secs;
+static char statusline[256];
+
+static inline void print_status(void)
+{
+	printf("%s\r", statusline);
+	fflush(stdout);
+}
 
 static bool submit_upstream_work(const struct work *work)
 {
@@ -552,6 +559,7 @@ static bool submit_upstream_work(const struct work *work)
 			cgpu->is_gpu? "G" : "C", cgpu->cpu_gpu, cgpu->total_mhashes / total_secs,
 			getwork_requested, cgpu->accepted, cgpu->rejected, cgpu->hw_errors,
 			efficiency, utility);
+		print_status();
 	}
 	applog(LOG_INFO, "%sPU %d  Requested:%d  Accepted:%d  Rejected:%d  HW errors:%d  Efficiency:%.0f%%  Utility:%.2f/m",
 	       cgpu->is_gpu? "G" : "C", cgpu->cpu_gpu, getwork_requested, cgpu->accepted, cgpu->rejected, cgpu->hw_errors, efficiency, utility
@@ -884,10 +892,10 @@ static void hashmeter(int thr_id, struct timeval *diff,
 	utility = accepted / ( total_secs ? total_secs : 1 ) * 60;
 	efficiency = getwork_requested ? accepted * 100.0 / getwork_requested : 0.0;
 
-	printf("[(%ds):%.1f  (avg):%.1f Mh/s] [Q:%d  A:%d  R:%d  HW:%d  E:%.0f%%  U:%.2f/m]\r",
+	sprintf(statusline, "[(%ds):%.1f  (avg):%.1f Mh/s] [Q:%d  A:%d  R:%d  HW:%d  E:%.0f%%  U:%.2f/m]          ",
 		opt_log_interval, rolling_local / local_secs, total_mhashes_done / total_secs,
 		getwork_requested, accepted, rejected, hw_errors, efficiency, utility);
-	fflush(stdout);
+	print_status();
 	applog(LOG_INFO, "[Rate (%ds):%.1f  (avg):%.2f Mhash/s] [Requested:%d  Accepted:%d  Rejected:%d  HW errors:%d  Efficiency:%.0f%%  Utility:%.2f/m]",
 		opt_log_interval, rolling_local / local_secs, total_mhashes_done / total_secs,
 		getwork_requested, accepted, rejected, hw_errors, efficiency, utility);