Work out a rolling average getwork delay stored in pool_stats.

api.c

@@ -2114,11 +2114,12 @@ static int itemstats(int i, char *id, struct cgminer_stats *stats, struct cgmine
 		if (pool_stats) {
 			sprintf(buf, isjson
 				? ",\"Pool Calls\":%d,\"Pool Attempts\":%d,\"Pool Wait\":%ld.%06ld,\"Pool Max\":%ld.%06ld,\"Pool Min\":%ld.%06ld"
-				: ",Pool Calls=%d,Pool Attempts=%d,Pool Wait=%ld.%06ld,Pool Max=%ld.%06ld,Pool Min=%ld.%06ld",
+				: ",Pool Calls=%d,Pool Attempts=%d,Pool Wait=%ld.%06ld,Pool Max=%ld.%06ld,Pool Min=%ld.%06ld,Pool Av=%f",
 				pool_stats->getwork_calls, pool_stats->getwork_attempts,
 				pool_stats->getwork_wait.tv_sec, pool_stats->getwork_wait.tv_usec,
 				pool_stats->getwork_wait_max.tv_sec, pool_stats->getwork_wait_max.tv_usec,
-				pool_stats->getwork_wait_min.tv_sec, pool_stats->getwork_wait_min.tv_usec);
+				pool_stats->getwork_wait_min.tv_sec, pool_stats->getwork_wait_min.tv_usec,
+				pool_stats->getwork_wait_rolling);
 
 			strcat(io_buffer, buf);
 		}

cgminer.c

@@ -1856,13 +1856,11 @@ retry:
 	if (!rc && retries < 3)
 		goto retry;
 
-	work->pool = pool;
-	work->longpoll = false;
-	total_getworks++;
-	pool->getwork_requested++;
-
 	gettimeofday(&tv_end, NULL);
 	timersub(&tv_end, &tv_start, &tv_elapsed);
+	pool_stats->getwork_wait_rolling += ((double)tv_elapsed.tv_sec + ((double)tv_elapsed.tv_usec / 1000000)) * 0.63;
+	pool_stats->getwork_wait_rolling /= 1.63;
+
 	timeradd(&tv_elapsed, &(pool_stats->getwork_wait), &(pool_stats->getwork_wait));
 	if (timercmp(&tv_elapsed, &(pool_stats->getwork_wait_max), >)) {
 		pool_stats->getwork_wait_max.tv_sec = tv_elapsed.tv_sec;
@@ -1874,6 +1872,11 @@ retry:
 	}
 	pool_stats->getwork_calls++;
 
+	work->pool = pool;
+	work->longpoll = false;
+	total_getworks++;
+	pool->getwork_requested++;
+
 	json_decref(val);
 out:
 

miner.h

@@ -298,6 +298,7 @@ struct cgminer_pool_stats {
 	struct timeval getwork_wait;
 	struct timeval getwork_wait_max;
 	struct timeval getwork_wait_min;
+	double getwork_wait_rolling;
 };
 
 struct cgpu_info {