Only update the hashmeter once per second from gpu mining threads.

cpu-miner.c

@@ -914,9 +914,10 @@ static void *gpuminer_thread(void *userdata)
 
 	struct work *work = malloc(sizeof(struct work));
 	bool need_work = true;
-	unsigned int threads = 1 << (15 + scan_intensity);
-	unsigned int vectors = clState->preferred_vwidth;
-	unsigned int hashes_done = threads * vectors;
+	unsigned const int threads = 1 << (15 + scan_intensity);
+	unsigned const int vectors = clState->preferred_vwidth;
+	unsigned const int hashes = threads * vectors;
+	unsigned int hashes_done = 0;
 
 	gettimeofday(&tv_start, NULL);
 	globalThreads[0] = threads;
@@ -984,10 +985,14 @@ static void *gpuminer_thread(void *userdata)
 
 		gettimeofday(&tv_end, NULL);
 		timeval_subtract(&diff, &tv_end, &tv_start);
+		hashes_done += hashes;
+		work->blk.nonce += hashes;
+		if (diff.tv_sec >= 1) {
 			hashmeter(thr_id, &diff, hashes_done);
 			gettimeofday(&tv_start, NULL);
+			hashes_done = 0;
+		}
 
-		work->blk.nonce += hashes_done;
 		timeval_subtract(&diff, &tv_end, &tv_workstart);
 
 		if (diff.tv_sec > opt_scantime  ||