Add terse version 2 output format

Default is the new format, but allow a user to set version 2 for
easier backwards compatability with older scripts.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/stat.c b/stat.c
index 19b3696..d54ed2c 100644
--- a/stat.c
+++ b/stat.c
@@ -660,10 +660,68 @@
 		log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
 }
 
+static void show_thread_status_terse_v2(struct thread_stat *ts,
+				        struct group_run_stats *rs)
+{
+	double io_u_dist[FIO_IO_U_MAP_NR];
+	double io_u_lat_u[FIO_IO_U_LAT_U_NR];
+	double io_u_lat_m[FIO_IO_U_LAT_M_NR];
+	double usr_cpu, sys_cpu;
+	int i;
+
+	/* General Info */
+	log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error);
+	/* Log Read Status */
+	show_ddir_status_terse(ts, rs, 0);
+	/* Log Write Status */
+	show_ddir_status_terse(ts, rs, 1);
+
+	/* CPU Usage */
+	if (ts->total_run_time) {
+		double runt = (double) ts->total_run_time;
+
+		usr_cpu = (double) ts->usr_time * 100 / runt;
+		sys_cpu = (double) ts->sys_time * 100 / runt;
+	} else {
+		usr_cpu = 0;
+		sys_cpu = 0;
+	}
+
+	log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf,
+								ts->minf);
+
+	/* Calc % distribution of IO depths, usecond, msecond latency */
+	stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist);
+	stat_calc_lat_u(ts, io_u_lat_u);
+	stat_calc_lat_m(ts, io_u_lat_m);
+
+	/* Only show fixed 7 I/O depth levels*/
+	log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
+			io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
+			io_u_dist[4], io_u_dist[5], io_u_dist[6]);
+
+	/* Microsecond latency */
+	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
+		log_info(";%3.2f%%", io_u_lat_u[i]);
+	/* Millisecond latency */
+	for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
+		log_info(";%3.2f%%", io_u_lat_m[i]);
+	/* Additional output if continue_on_error set - default off*/
+	if (ts->continue_on_error)
+		log_info(";%lu;%d", ts->total_err_count, ts->first_error);
+	log_info("\n");
+
+	/* Additional output if description is set */
+	if (ts->description)
+		log_info(";%s", ts->description);
+
+	log_info("\n");
+}
+
 #define FIO_TERSE_VERSION	"3"
 
-static void show_thread_status_terse(struct thread_stat *ts,
-				     struct group_run_stats *rs)
+static void show_thread_status_terse_v3(struct thread_stat *ts,
+					struct group_run_stats *rs)
 {
 	double io_u_dist[FIO_IO_U_MAP_NR];
 	double io_u_lat_u[FIO_IO_U_LAT_U_NR];
@@ -723,6 +781,17 @@
 		log_info(";%s", ts->description);
 }
 
+static void show_thread_status_terse(struct thread_stat *ts,
+				     struct group_run_stats *rs)
+{
+	if (terse_version == 2)
+		show_thread_status_terse_v2(ts, rs);
+	else if (terse_version == 3)
+		show_thread_status_terse_v3(ts, rs);
+	else
+		log_err("fio: bad terse version!? %d\n", terse_version);
+}
+
 static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
 {
 	double mean, S;