add progress output

TODO

@@ -4,4 +4,4 @@
 - ssl support
 - better error reporting
 - ipv6 support
-- progress output
+- pipelining

src/client.c

@@ -275,10 +275,12 @@ void client_state_machine(Client *client) {
 				client->worker->stats.req_failed++;
 			}
 
-			/*if (client->worker->id == 1 && (client->worker->stats.req_started % 10) == 0)
-				printf("thread: %d, requests done: %"PRIu64", %"PRIu64" todo, %"PRIu64" started\n",
-					client->worker->id, client->worker->stats.req_done, client->worker->stats.req_todo,
-					client->worker->stats.req_started);*/
+			/* print progress every 10% done */
+			if (client->worker->id == 1 && client->worker->stats.req_done % client->worker->progress_interval == 0) {
+				printf("progress: %3d%% done\n",
+					(int) (client->worker->stats.req_done * 100 / client->worker->stats.req_todo)
+				);
+			}
 
 			if (client->worker->stats.req_started == client->worker->stats.req_todo) {
 				/* this worker has started all requests */

src/weighttp.c

@@ -160,6 +160,7 @@ int main(int argc, char *argv[]) {
 	char c;
 	int err;
 	struct ev_loop *loop;
+	ev_tstamp ts_start, ts_end;
 	Config config;
 	Worker *worker;
 	char *host;
@@ -270,7 +271,7 @@ int main(int argc, char *argv[]) {
 	printf("starting benchmark...\n");
 
 	memset(&stats, 0, sizeof(stats));
-	stats.ts_start = ev_time();
+	ts_start = ev_time();
 
 	for (i = 0; i < config.thread_count; i++) {
 		uint64_t reqs = config.req_count / config.thread_count;
@@ -325,16 +326,16 @@ int main(int argc, char *argv[]) {
 		worker_free(worker);
 	}
 
-	stats.ts_end = ev_time();
-	duration = stats.ts_end - stats.ts_start;
+	ts_end = ev_time();
+	duration = ts_end - ts_start;
 	sec = duration;
 	duration -= sec;
 	duration = duration * 1000;
 	millisec = duration;
 	duration -= millisec;
 	microsec = duration * 1000;
-	rps = stats.req_done / (stats.ts_end - stats.ts_start);
-	kbps = stats.bytes_total / (stats.ts_end - stats.ts_start) / 1024;
+	rps = stats.req_done / (ts_end - ts_start);
+	kbps = stats.bytes_total / (ts_end - ts_start) / 1024;
 	printf("\nfinished in %d sec, %d millisec and %d microsec, %"PRIu64" req/s, %"PRIu64" kbyte/s\n", sec, millisec, microsec, rps, kbps);
 	printf("requests: %"PRIu64" total, %"PRIu64" started, %"PRIu64" done, %"PRIu64" succeeded, %"PRIu64" failed, %"PRIu64" errored\n",
 		config.req_count, stats.req_started, stats.req_done, stats.req_success, stats.req_failed, stats.req_error

src/worker.c

@@ -21,6 +21,11 @@ Worker *worker_new(uint8_t id, Config *config, uint16_t num_clients, uint64_t nu
 	worker->config = config;
 	worker->num_clients = num_clients;
 	worker->stats.req_todo = num_requests;
+	worker->progress_interval = num_requests / 10;
+
+	if (worker->progress_interval == 0)
+		worker->progress_interval = 1;
+
 	worker->clients = W_MALLOC(Client*, num_clients);
 
 	for (i = 0; i < num_clients; i++) {

src/worker.h

@@ -9,8 +9,6 @@
  */
 
 struct Stats {
-	ev_tstamp ts_start;		/* start of requests */
-	ev_tstamp ts_end;		/* end of requests */
 	ev_tstamp req_ts_min;	/* minimum time taken for a request */
 	ev_tstamp req_ts_max;	/* maximum time taken for a request */
 	ev_tstamp req_ts_total;	/* total time taken for all requests (this is not ts_end - ts_start!) */
@@ -32,6 +30,7 @@ struct Worker {
 	Client **clients;
 	uint16_t num_clients;
 	Stats stats;
+	uint64_t progress_interval;
 };