X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=stat.c;h=522901a993e89f70d6f075ac9e5c2ebd52e77eae;hp=c2705d26f38bbd82f25b82882aa1f5910901a7d0;hb=ba458c2f1d12c54fb4cfd4918a4e4d72d84b55a4;hpb=37f0c1ae23ad1716403d3d113c3dfdf41c47e329

diff --git a/stat.c b/stat.c
index c2705d26..522901a9 100644
--- a/stat.c
+++ b/stat.c
@@ -9,13 +9,18 @@
 
 #include "fio.h"
 #include "diskutil.h"
-#include "ieee754.h"
+#include "lib/ieee754.h"
+#include "json.h"
 
 void update_rusage_stat(struct thread_data *td)
 {
 	struct thread_stat *ts = &td->ts;
 
+#ifdef RUSAGE_THREAD
+	getrusage(RUSAGE_THREAD, &td->ru_end);
+#else
 	getrusage(RUSAGE_SELF, &td->ru_end);
+#endif
 
 	ts->usr_time += mtime_since(&td->ru_start.ru_utime,
 					&td->ru_end.ru_utime);
@@ -114,20 +119,28 @@ static int double_cmp(const void *a, const void *b)
 	return cmp;
 }
 
-/*
- * Find and display the p-th percentile of clat
- */
-static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
-				  fio_fp64_t *plist)
+static unsigned int calc_clat_percentiles(unsigned int *io_u_plat,
+					  unsigned long nr, fio_fp64_t *plist,
+					  unsigned int **output,
+					  unsigned int *maxv,
+					  unsigned int *minv)
 {
 	unsigned long sum = 0;
 	unsigned int len, i, j = 0;
-	int is_last = 0;
+	unsigned int oval_len = 0;
+	unsigned int *ovals = NULL;
+	int is_last;
+
+	*minv = -1U;
+	*maxv = 0;
 
 	len = 0;
 	while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
 		len++;
 
+	if (!len)
+		return 0;
+
 	/*
 	 * Sort the percentile list. Note that it may already be sorted if
 	 * we are using the default values, but since it's a short list this
@@ -136,31 +149,94 @@ static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
 	if (len > 1)
 		qsort((void*)plist, len, sizeof(plist[0]), double_cmp);
 
-	log_info("    clat percentiles (usec) :");
-
+	/*
+	 * Calculate bucket values, note down max and min values
+	 */
+	is_last = 0;
 	for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
 		sum += io_u_plat[i];
 		while (sum >= (plist[j].u.f / 100.0 * nr)) {
 			assert(plist[j].u.f <= 100.0);
 
-			/* for formatting */
-			if (j != 0 && (j % 4) == 0)
-				log_info("                             ");
-
-			/* end of the list */
-			is_last = (j == len - 1);
+			if (j == oval_len) {
+				oval_len += 100;
+				ovals = realloc(ovals, oval_len * sizeof(unsigned int));
+			}
 
-			log_info(" %2.2fth=%u%c", plist[j], plat_idx_to_val(i),
-				 (is_last? '\n' : ','));
+			ovals[j] = plat_idx_to_val(i);
+			if (ovals[j] < *minv)
+				*minv = ovals[j];
+			if (ovals[j] > *maxv)
+				*maxv = ovals[j];
 
+			is_last = (j == len - 1);
 			if (is_last)
 				break;
 
-			if (j % 4 == 3)	/* for formatting */
-				log_info("\n");
 			j++;
 		}
 	}
+
+	*output = ovals;
+	return len;
+}
+
+/*
+ * Find and display the p-th percentile of clat
+ */
+static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
+				  fio_fp64_t *plist)
+{
+	unsigned int len, j = 0, minv, maxv;
+	unsigned int *ovals;
+	int is_last, scale_down;
+
+	len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
+	if (!len)
+		goto out;
+
+	/*
+	 * We default to usecs, but if the value range is such that we
+	 * should scale down to msecs, do that.
+	 */
+	if (minv > 2000 && maxv > 99999) {
+		scale_down = 1;
+		log_info("    clat percentiles (msec):\n     |");
+	} else {
+		scale_down = 0;
+		log_info("    clat percentiles (usec):\n     |");
+	}
+
+	for (j = 0; j < len; j++) {
+		char fbuf[8];
+
+		/* for formatting */
+		if (j != 0 && (j % 4) == 0)
+			log_info("     |");
+
+		/* end of the list */
+		is_last = (j == len - 1);
+
+		if (plist[j].u.f < 10.0)
+			sprintf(fbuf, " %2.2f", plist[j].u.f);
+		else
+			sprintf(fbuf, "%2.2f", plist[j].u.f);
+
+		if (scale_down)
+			ovals[j] = (ovals[j] + 999) / 1000;
+
+		log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
+
+		if (is_last)
+			break;
+
+		if (j % 4 == 3)	/* for formatting */
+			log_info("\n");
+	}
+
+out:
+	if (ovals)
+		free(ovals);
 }
 
 static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
@@ -188,12 +264,12 @@ static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
 void show_group_stats(struct group_run_stats *rs)
 {
 	char *p1, *p2, *p3, *p4;
-	const char *ddir_str[] = { "   READ", "  WRITE" };
+	const char *ddir_str[] = { "   READ", "  WRITE" , "   TRIM"};
 	int i;
 
 	log_info("\nRun status group %d (all jobs):\n", rs->groupid);
 
-	for (i = 0; i <= DDIR_WRITE; i++) {
+	for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 		const int i2p = is_power_of_2(rs->kb_base);
 
 		if (!rs->max_run[i])
@@ -217,7 +293,8 @@ void show_group_stats(struct group_run_stats *rs)
 }
 
 #define ts_total_io_u(ts)	\
-	((ts)->total_io_u[0] + (ts)->total_io_u[1])
+	((ts)->total_io_u[DDIR_READ] + (ts)->total_io_u[DDIR_WRITE] +\
+		(ts)->total_io_u[DDIR_TRIM])
 
 static void stat_calc_dist(unsigned int *map, unsigned long total,
 			   double *io_u_dist)
@@ -285,7 +362,7 @@ static int usec_to_msec(unsigned long *min, unsigned long *max, double *mean,
 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
 			     int ddir)
 {
-	const char *ddir_str[] = { "read ", "write" };
+	const char *ddir_str[] = { "read ", "write", "trim" };
 	unsigned long min, max, runt;
 	unsigned long long bw, iops;
 	double mean, dev;
@@ -369,27 +446,42 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
 					ts->percentile_list);
 	}
 	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
-		double p_of_agg;
+		double p_of_agg = 100.0;
+		const char *bw_str = "KB";
+
+		if (rs->agg[ddir]) {
+			p_of_agg = mean * 100 / (double) rs->agg[ddir];
+			if (p_of_agg > 100.0)
+				p_of_agg = 100.0;
+		}
 
-		p_of_agg = mean * 100 / (double) rs->agg[ddir];
-		log_info("     bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%,"
-			 " avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg,
-							mean, dev);
+		if (mean > 999999.9) {
+			min /= 1000.0;
+			max /= 1000.0;
+			mean /= 1000.0;
+			dev /= 1000.0;
+			bw_str = "MB";
+		}
+
+		log_info("    bw (%s/s)  : min=%5lu, max=%5lu, per=%3.2f%%,"
+			 " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
+							p_of_agg, mean, dev);
 	}
 }
 
-static void show_lat(double *io_u_lat, int nr, const char **ranges,
-		     const char *msg)
+static int show_lat(double *io_u_lat, int nr, const char **ranges,
+		    const char *msg)
 {
-	int new_line = 1, i, line = 0;
+	int new_line = 1, i, line = 0, shown = 0;
 
 	for (i = 0; i < nr; i++) {
 		if (io_u_lat[i] <= 0.0)
 			continue;
+		shown = 1;
 		if (new_line) {
 			if (line)
 				log_info("\n");
-			log_info("     lat (%s): ", msg);
+			log_info("    lat (%s) : ", msg);
 			new_line = 0;
 			line = 0;
 		}
@@ -400,6 +492,11 @@ static void show_lat(double *io_u_lat, int nr, const char **ranges,
 		if (line == 5)
 			new_line = 1;
 	}
+
+	if (shown)
+		log_info("\n");
+
+	return shown;
 }
 
 static void show_lat_u(double *io_u_lat_u)
@@ -422,9 +519,7 @@ static void show_lat_m(double *io_u_lat_m)
 static void show_latencies(double *io_u_lat_u, double *io_u_lat_m)
 {
 	show_lat_u(io_u_lat_u);
-	log_info("\n");
 	show_lat_m(io_u_lat_m);
-	log_info("\n");
 }
 
 void show_thread_status(struct thread_stat *ts, struct group_run_stats *rs)
@@ -434,28 +529,41 @@ void show_thread_status(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];
+	time_t time_p;
+	char time_buf[64];
 
-	if (!(ts->io_bytes[0] + ts->io_bytes[1]) &&
-	    !(ts->total_io_u[0] + ts->total_io_u[1]))
+	if (!(ts->io_bytes[DDIR_READ] + ts->io_bytes[DDIR_WRITE] +
+	    ts->io_bytes[DDIR_TRIM]) && !(ts->total_io_u[DDIR_READ] +
+	    ts->total_io_u[DDIR_WRITE] + ts->total_io_u[DDIR_TRIM]))
 		return;
 
+	time(&time_p);
+	os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
+
 	if (!ts->error) {
-		log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n",
+		log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
 					ts->name, ts->groupid, ts->members,
-					ts->error, (int) ts->pid);
+					ts->error, (int) ts->pid, time_buf);
 	} else {
-		log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n",
+		log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
 					ts->name, ts->groupid, ts->members,
-					ts->error, ts->verror, (int) ts->pid);
+					ts->error, ts->verror, (int) ts->pid,
+					time_buf);
 	}
 
-	if (ts->description)
+	if (strlen(ts->description))
 		log_info("  Description  : [%s]\n", ts->description);
 
 	if (ts->io_bytes[DDIR_READ])
 		show_ddir_status(rs, ts, DDIR_READ);
 	if (ts->io_bytes[DDIR_WRITE])
 		show_ddir_status(rs, ts, DDIR_WRITE);
+	if (ts->io_bytes[DDIR_TRIM])
+		show_ddir_status(rs, ts, DDIR_TRIM);
+
+	stat_calc_lat_u(ts, io_u_lat_u);
+	stat_calc_lat_m(ts, io_u_lat_m);
+	show_latencies(io_u_lat_u, io_u_lat_m);
 
 	runtime = ts->total_run_time;
 	if (runtime) {
@@ -490,14 +598,12 @@ void show_thread_status(struct thread_stat *ts, struct group_run_stats *rs)
 					io_u_dist[1], io_u_dist[2],
 					io_u_dist[3], io_u_dist[4],
 					io_u_dist[5], io_u_dist[6]);
-	log_info("     issued r/w/d: total=%lu/%lu/%lu, short=%lu/%lu/%lu\n",
+	log_info("     issued    : total=r=%lu/w=%lu/d=%lu,"
+				 " short=r=%lu/w=%lu/d=%lu\n",
 					ts->total_io_u[0], ts->total_io_u[1],
 					ts->total_io_u[2],
 					ts->short_io_u[0], ts->short_io_u[1],
 					ts->short_io_u[2]);
-	stat_calc_lat_u(ts, io_u_lat_u);
-	stat_calc_lat_m(ts, io_u_lat_m);
-	show_latencies(io_u_lat_u, io_u_lat_m);
 	if (ts->continue_on_error) {
 		log_info("     errors    : total=%lu, first_error=%d/<%s>\n",
 					ts->total_err_count,
@@ -510,16 +616,23 @@ static void show_ddir_status_terse(struct thread_stat *ts,
 				   struct group_run_stats *rs, int ddir)
 {
 	unsigned long min, max;
-	unsigned long long bw;
+	unsigned long long bw, iops;
+	unsigned int *ovals = NULL;
 	double mean, dev;
+	unsigned int len, minv, maxv;
+	int i;
 
 	assert(ddir_rw(ddir));
 
-	bw = 0;
-	if (ts->runtime[ddir])
-		bw = ts->io_bytes[ddir] / ts->runtime[ddir];
+	iops = bw = 0;
+	if (ts->runtime[ddir]) {
+		uint64_t runt = ts->runtime[ddir];
 
-	log_info(";%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw,
+		bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
+		iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
+	}
+
+	log_info(";%llu;%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw, iops,
 							ts->runtime[ddir]);
 
 	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
@@ -532,24 +645,149 @@ static void show_ddir_status_terse(struct thread_stat *ts,
 	else
 		log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 
+	if (ts->clat_percentiles) {
+		len = calc_clat_percentiles(ts->io_u_plat[ddir],
+					ts->clat_stat[ddir].samples,
+					ts->percentile_list, &ovals, &maxv,
+					&minv);
+	} else
+		len = 0;
+
+	for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
+		if (i >= len) {
+			log_info(";0%%=0");
+			continue;
+		}
+		log_info(";%2.2f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
+	}
+
 	if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
 		log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
 	else
 		log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
 
+	if (ovals)
+		free(ovals);
+
 	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
-		double p_of_agg;
+		double p_of_agg = 100.0;
+
+		if (rs->agg[ddir]) {
+			p_of_agg = mean * 100 / (double) rs->agg[ddir];
+			if (p_of_agg > 100.0)
+				p_of_agg = 100.0;
+		}
 
-		p_of_agg = mean * 100 / (double) rs->agg[ddir];
 		log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
 	} else
 		log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
 }
 
-#define FIO_TERSE_VERSION	"2"
+static void add_ddir_status_json(struct thread_stat *ts,
+		struct group_run_stats *rs, int ddir, struct json_object *parent)
+{
+	unsigned long min, max;
+	unsigned long long bw, iops;
+	unsigned int *ovals = NULL;
+	double mean, dev;
+	unsigned int len, minv, maxv;
+	int i;
+	const char *ddirname[] = {"read", "write", "trim"};
+	struct json_object *dir_object, *tmp_object, *percentile_object;
+	char buf[120];
+	double p_of_agg = 100.0;
+
+	assert(ddir_rw(ddir));
 
-static void show_thread_status_terse(struct thread_stat *ts,
-				     struct group_run_stats *rs)
+	dir_object = json_create_object();
+	json_object_add_value_object(parent, ddirname[ddir], dir_object);
+
+	iops = bw = 0;
+	if (ts->runtime[ddir]) {
+		uint64_t runt = ts->runtime[ddir];
+
+		bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
+		iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
+	}
+
+	json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
+	json_object_add_value_int(dir_object, "bw", bw);
+	json_object_add_value_int(dir_object, "iops", iops);
+	json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
+
+	if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
+		min = max = 0;
+		mean = dev = 0.0;
+	}
+	tmp_object = json_create_object();
+	json_object_add_value_object(dir_object, "slat", tmp_object);
+	json_object_add_value_int(tmp_object, "min", min);
+	json_object_add_value_int(tmp_object, "max", max);
+	json_object_add_value_float(tmp_object, "mean", mean);
+	json_object_add_value_float(tmp_object, "stddev", dev);
+
+	if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
+		min = max = 0;
+		mean = dev = 0.0;
+	}
+	tmp_object = json_create_object();
+	json_object_add_value_object(dir_object, "clat", tmp_object);
+	json_object_add_value_int(tmp_object, "min", min);
+	json_object_add_value_int(tmp_object, "max", max);
+	json_object_add_value_float(tmp_object, "mean", mean);
+	json_object_add_value_float(tmp_object, "stddev", dev);
+
+	if (ts->clat_percentiles) {
+		len = calc_clat_percentiles(ts->io_u_plat[ddir],
+					ts->clat_stat[ddir].samples,
+					ts->percentile_list, &ovals, &maxv,
+					&minv);
+	} else
+		len = 0;
+
+	percentile_object = json_create_object();
+	json_object_add_value_object(tmp_object, "percentile", percentile_object);
+	for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
+		if (i >= len) {
+			json_object_add_value_int(percentile_object, "0.00", 0);
+			continue;
+		}
+		snprintf(buf, sizeof(buf) - 1, "%2.2f", ts->percentile_list[i].u.f);
+		json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
+	}
+
+	if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
+		min = max = 0;
+		mean = dev = 0.0;
+	}
+	tmp_object = json_create_object();
+	json_object_add_value_object(dir_object, "lat", tmp_object);
+	json_object_add_value_int(tmp_object, "min", min);
+	json_object_add_value_int(tmp_object, "max", max);
+	json_object_add_value_float(tmp_object, "mean", mean);
+	json_object_add_value_float(tmp_object, "stddev", dev);
+	if (ovals)
+		free(ovals);
+
+	if (!calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
+		if (rs->agg[ddir]) {
+			p_of_agg = mean * 100 / (double) rs->agg[ddir];
+			if (p_of_agg > 100.0)
+				p_of_agg = 100.0;
+		}
+	} else {
+		min = max = 0;
+		p_of_agg = mean = dev = 0.0;
+	}
+	json_object_add_value_int(dir_object, "bw_min", min);
+	json_object_add_value_int(dir_object, "bw_max", max);
+	json_object_add_value_float(dir_object, "bw_agg", mean);
+	json_object_add_value_float(dir_object, "bw_mean", mean);
+	json_object_add_value_float(dir_object, "bw_dev", dev);
+}
+
+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];
@@ -558,12 +796,13 @@ static void show_thread_status_terse(struct thread_stat *ts,
 	int i;
 
 	/* General Info */
-	log_info("%s;%s;%d;%d", FIO_TERSE_VERSION, ts->name, ts->groupid,
-				ts->error);
+	log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error);
 	/* Log Read Status */
-	show_ddir_status_terse(ts, rs, 0);
+	show_ddir_status_terse(ts, rs, DDIR_READ);
 	/* Log Write Status */
-	show_ddir_status_terse(ts, rs, 1);
+	show_ddir_status_terse(ts, rs, DDIR_WRITE);
+	/* Log Trim Status */
+	show_ddir_status_terse(ts, rs, DDIR_TRIM);
 
 	/* CPU Usage */
 	if (ts->total_run_time) {
@@ -607,6 +846,166 @@ static void show_thread_status_terse(struct thread_stat *ts,
 	log_info("\n");
 }
 
+static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
+					   struct group_run_stats *rs, int ver)
+{
+	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("%d;%s;%s;%d;%d", ver, fio_version_string,
+					ts->name, ts->groupid, ts->error);
+	/* Log Read Status */
+	show_ddir_status_terse(ts, rs, DDIR_READ);
+	/* Log Write Status */
+	show_ddir_status_terse(ts, rs, DDIR_WRITE);
+	/* Log Trim Status */
+	if (ver == 4)
+		show_ddir_status_terse(ts, rs, DDIR_TRIM);
+
+	/* 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]);
+
+	/* disk util stats, if any */
+	show_disk_util(1, NULL);
+
+	/* 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);
+
+	/* Additional output if description is set */
+	if (strlen(ts->description))
+		log_info(";%s", ts->description);
+
+	log_info("\n");
+}
+
+static struct json_object *show_thread_status_json(struct thread_stat *ts,
+				    struct group_run_stats *rs)
+{
+	struct json_object *root, *tmp;
+	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;
+
+	root = json_create_object();
+	json_object_add_value_string(root, "jobname", ts->name);
+	json_object_add_value_int(root, "groupid", ts->groupid);
+	json_object_add_value_int(root, "error", ts->error);
+
+	add_ddir_status_json(ts, rs, DDIR_READ, root);
+	add_ddir_status_json(ts, rs, DDIR_WRITE, root);
+	add_ddir_status_json(ts, rs, DDIR_TRIM, root);
+
+	/* 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;
+	}
+	json_object_add_value_float(root, "usr_cpu", usr_cpu);
+	json_object_add_value_float(root, "sys_cpu", sys_cpu);
+	json_object_add_value_int(root, "ctx", ts->ctx);
+	json_object_add_value_int(root, "majf", ts->majf);
+	json_object_add_value_int(root, "minf", 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);
+
+	tmp = json_create_object();
+	json_object_add_value_object(root, "iodepth_level", tmp);
+	/* Only show fixed 7 I/O depth levels*/
+	for (i = 0; i < 7; i++) {
+		char name[20];
+		if (i < 6)
+			snprintf(name, 19, "%d", 1 << i);
+		else
+			snprintf(name, 19, ">=%d", 1 << i);
+		json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
+	}
+
+	tmp = json_create_object();
+	json_object_add_value_object(root, "latency_us", tmp);
+	/* Microsecond latency */
+	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
+		const char *ranges[] = { "2", "4", "10", "20", "50", "100",
+				 "250", "500", "750", "1000", };
+		json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
+	}
+	/* Millisecond latency */
+	tmp = json_create_object();
+	json_object_add_value_object(root, "latency_ms", tmp);
+	for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
+		const char *ranges[] = { "2", "4", "10", "20", "50", "100",
+				 "250", "500", "750", "1000", "2000",
+				 ">=2000", };
+		json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
+	}
+
+	/* Additional output if continue_on_error set - default off*/
+	if (ts->continue_on_error) {
+		json_object_add_value_int(root, "total_err", ts->total_err_count);
+		json_object_add_value_int(root, "total_err", ts->first_error);
+	}
+
+	/* Additional output if description is set */
+	if (strlen(ts->description))
+		json_object_add_value_string(root, "desc", ts->description);
+
+	return root;
+}
+
+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 || terse_version == 4)
+		show_thread_status_terse_v3_v4(ts, rs, terse_version);
+	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;
@@ -646,7 +1045,7 @@ void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
 {
 	int i;
 
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < DDIR_RWDIR_CNT; i++) {
 		if (dst->max_run[i] < src->max_run[i])
 			dst->max_run[i] = src->max_run[i];
 		if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
@@ -666,7 +1065,7 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
 {
 	int l, k;
 
-	for (l = 0; l <= DDIR_WRITE; l++) {
+	for (l = 0; l < DDIR_RWDIR_CNT; l++) {
 		sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
 		sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
 		sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
@@ -695,12 +1094,12 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
 	for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
 		dst->io_u_lat_m[k] += src->io_u_lat_m[k];
 
-	for (k = 0; k <= 2; k++) {
+	for (k = 0; k < DDIR_RWDIR_CNT; k++) {
 		dst->total_io_u[k] += src->total_io_u[k];
 		dst->short_io_u[k] += src->short_io_u[k];
 	}
 
-	for (k = 0; k <= DDIR_WRITE; k++) {
+	for (k = 0; k < DDIR_RWDIR_CNT; k++) {
 		int m;
 		for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
 			dst->io_u_plat[k][m] += src->io_u_plat[k][m];
@@ -713,9 +1112,11 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
 
 void init_group_run_stat(struct group_run_stats *gs)
 {
+	int i;
 	memset(gs, 0, sizeof(*gs));
-	gs->min_bw[0] = gs->min_run[0] = ~0UL;
-	gs->min_bw[1] = gs->min_run[1] = ~0UL;
+
+	for (i = 0; i < DDIR_RWDIR_CNT; i++)
+		gs->min_bw[i] = gs->min_run[i] = ~0UL;
 }
 
 void init_thread_stat(struct thread_stat *ts)
@@ -724,7 +1125,7 @@ void init_thread_stat(struct thread_stat *ts)
 
 	memset(ts, 0, sizeof(*ts));
 
-	for (j = 0; j <= DDIR_WRITE; j++) {
+	for (j = 0; j < DDIR_RWDIR_CNT; j++) {
 		ts->lat_stat[j].min_val = -1UL;
 		ts->clat_stat[j].min_val = -1UL;
 		ts->slat_stat[j].min_val = -1UL;
@@ -740,6 +1141,8 @@ void show_run_stats(void)
 	struct thread_stat *threadstats, *ts;
 	int i, j, nr_ts, last_ts, idx;
 	int kb_base_warned = 0;
+	struct json_object *root = NULL;
+	struct json_array *array = NULL;
 
 	runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
 
@@ -841,7 +1244,7 @@ void show_run_stats(void)
 		rs = &runstats[ts->groupid];
 		rs->kb_base = ts->kb_base;
 
-		for (j = 0; j <= DDIR_WRITE; j++) {
+		for (j = 0; j < DDIR_RWDIR_CNT; j++) {
 			if (!ts->runtime[j])
 				continue;
 			if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
@@ -851,10 +1254,11 @@ void show_run_stats(void)
 
 			bw = 0;
 			if (ts->runtime[j]) {
-				unsigned long runt;
+				unsigned long runt = ts->runtime[j];
+				unsigned long long kb;
 
-				runt = ts->runtime[j];
-				bw = ts->io_bytes[j] / runt;
+				kb = ts->io_bytes[j] / rs->kb_base;
+				bw = kb * 1000 / runt;
 			}
 			if (bw < rs->min_bw[j])
 				rs->min_bw[j] = bw;
@@ -866,23 +1270,28 @@ void show_run_stats(void)
 	}
 
 	for (i = 0; i < groupid + 1; i++) {
-		unsigned long max_run[2];
+		int ddir;
 
 		rs = &runstats[i];
-		max_run[0] = rs->max_run[0];
-		max_run[1] = rs->max_run[1];
 
-		if (rs->max_run[0])
-			rs->agg[0] = (rs->io_kb[0] * 1000) / max_run[0];
-		if (rs->max_run[1])
-			rs->agg[1] = (rs->io_kb[1] * 1000) / max_run[1];
+		for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
+			if (rs->max_run[ddir])
+				rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
+						rs->max_run[ddir];
+		}
 	}
 
 	/*
 	 * don't overwrite last signal output
 	 */
-	if (!terse_output)
+	if (output_format == FIO_OUTPUT_NORMAL)
 		log_info("\n");
+	else if (output_format == FIO_OUTPUT_JSON) {
+		root = json_create_object();
+		json_object_add_value_string(root, "fio version", fio_version_string);
+		array = json_create_array();
+		json_object_add_value_array(root, "jobs", array);
+	}
 
 	for (i = 0; i < nr_ts; i++) {
 		ts = &threadstats[i];
@@ -890,30 +1299,96 @@ void show_run_stats(void)
 
 		if (is_backend)
 			fio_server_send_ts(ts, rs);
-		else if (terse_output)
+		else if (output_format == FIO_OUTPUT_TERSE)
 			show_thread_status_terse(ts, rs);
-		else
+		else if (output_format == FIO_OUTPUT_JSON) {
+			struct json_object *tmp = show_thread_status_json(ts, rs);
+			json_array_add_value_object(array, tmp);
+		} else
 			show_thread_status(ts, rs);
 	}
+	if (output_format == FIO_OUTPUT_JSON) {
+		/* disk util stats, if any */
+		show_disk_util(1, root);
 
-	if (!terse_output) {
-		for (i = 0; i < groupid + 1; i++) {
-			rs = &runstats[i];
+		json_print_object(root);
+		log_info("\n");
+		json_free_object(root);
+	}
 
-			rs->groupid = i;
-			if (is_backend)
-				fio_server_send_gs(rs);
-			else
-				show_group_stats(rs);
-		}
+	for (i = 0; i < groupid + 1; i++) {
+		rs = &runstats[i];
 
-		show_disk_util();
+		rs->groupid = i;
+		if (is_backend)
+			fio_server_send_gs(rs);
+		else if (output_format == FIO_OUTPUT_NORMAL)
+			show_group_stats(rs);
 	}
 
+	if (is_backend)
+		fio_server_send_du();
+	else if (output_format == FIO_OUTPUT_NORMAL)
+		show_disk_util(0, NULL);
+
 	free(runstats);
 	free(threadstats);
 }
 
+static void *__show_running_run_stats(void *arg)
+{
+	struct thread_data *td;
+	unsigned long long *rt;
+	struct timeval tv;
+	int i;
+
+	rt = malloc(thread_number * sizeof(unsigned long long));
+	fio_gettime(&tv, NULL);
+
+	for_each_td(td, i) {
+		rt[i] = mtime_since(&td->start, &tv);
+		if (td_read(td) && td->io_bytes[DDIR_READ])
+			td->ts.runtime[DDIR_READ] += rt[i];
+		if (td_write(td) && td->io_bytes[DDIR_WRITE])
+			td->ts.runtime[DDIR_WRITE] += rt[i];
+		if (td_trim(td) && td->io_bytes[DDIR_TRIM])
+			td->ts.runtime[DDIR_TRIM] += rt[i];
+
+		update_rusage_stat(td);
+		td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
+		td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
+		td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
+		td->ts.total_run_time = mtime_since(&td->epoch, &tv);
+	}
+
+	show_run_stats();
+
+	for_each_td(td, i) {
+		if (td_read(td) && td->io_bytes[DDIR_READ])
+			td->ts.runtime[DDIR_READ] -= rt[i];
+		if (td_write(td) && td->io_bytes[DDIR_WRITE])
+			td->ts.runtime[DDIR_WRITE] -= rt[i];
+		if (td_trim(td) && td->io_bytes[DDIR_TRIM])
+			td->ts.runtime[DDIR_TRIM] -= rt[i];
+	}
+
+	free(rt);
+	return NULL;
+}
+
+/*
+ * Called from signal handler. It _should_ be safe to just run this inline
+ * in the sig handler, but we should be disturbing the system less by just
+ * creating a thread to do it.
+ */
+void show_running_run_stats(void)
+{
+	pthread_t thread;
+
+	pthread_create(&thread, NULL, __show_running_run_stats, NULL);
+	pthread_detach(thread);
+}
+
 static inline void add_stat_sample(struct io_stat *is, unsigned long data)
 {
 	double val = data;
@@ -939,6 +1414,9 @@ static void __add_log_sample(struct io_log *iolog, unsigned long val,
 {
 	const int nr_samples = iolog->nr_samples;
 
+	if (!iolog->nr_samples)
+		iolog->avg_last = t;
+
 	if (iolog->nr_samples == iolog->max_samples) {
 		int new_size = sizeof(struct io_sample) * iolog->max_samples*2;
 
@@ -953,14 +1431,74 @@ static void __add_log_sample(struct io_log *iolog, unsigned long val,
 	iolog->nr_samples++;
 }
 
+static inline void reset_io_stat(struct io_stat *ios)
+{
+	ios->max_val = ios->min_val = ios->samples = 0;
+	ios->mean.u.f = ios->S.u.f = 0;
+}
+
 static void add_log_sample(struct thread_data *td, struct io_log *iolog,
 			   unsigned long val, enum fio_ddir ddir,
 			   unsigned int bs)
 {
+	unsigned long elapsed, this_window;
+
 	if (!ddir_rw(ddir))
 		return;
 
-	__add_log_sample(iolog, val, ddir, bs, mtime_since_now(&td->epoch));
+	elapsed = mtime_since_now(&td->epoch);
+
+	/*
+	 * If no time averaging, just add the log sample.
+	 */
+	if (!iolog->avg_msec) {
+		__add_log_sample(iolog, val, ddir, bs, elapsed);
+		return;
+	}
+
+	/*
+	 * Add the sample. If the time period has passed, then
+	 * add that entry to the log and clear.
+	 */
+	add_stat_sample(&iolog->avg_window[ddir], val);
+
+	/*
+	 * If period hasn't passed, adding the above sample is all we
+	 * need to do.
+	 */
+	this_window = elapsed - iolog->avg_last;
+	if (this_window < iolog->avg_msec)
+		return;
+
+	/*
+	 * Note an entry in the log. Use the mean from the logged samples,
+	 * making sure to properly round up. Only write a log entry if we
+	 * had actual samples done.
+	 */
+	if (iolog->avg_window[DDIR_READ].samples) {
+		unsigned long mr;
+
+		mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50;
+		__add_log_sample(iolog, mr, DDIR_READ, 0, elapsed);
+	}
+	if (iolog->avg_window[DDIR_WRITE].samples) {
+		unsigned long mw;
+
+		mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50;
+		__add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed);
+	}
+	if (iolog->avg_window[DDIR_TRIM].samples) {
+		unsigned long mw;
+
+		mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50;
+		__add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed);
+	}
+
+
+	reset_io_stat(&iolog->avg_window[DDIR_READ]);
+	reset_io_stat(&iolog->avg_window[DDIR_WRITE]);
+	reset_io_stat(&iolog->avg_window[DDIR_TRIM]);
+	iolog->avg_last = elapsed;
 }
 
 void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
@@ -1041,15 +1579,26 @@ void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
 	if (spent < td->o.bw_avg_time)
 		return;
 
-	rate = (td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]) *
-			1000 / spent / 1024;
-	add_stat_sample(&ts->bw_stat[ddir], rate);
+	/*
+	 * Compute both read and write rates for the interval.
+	 */
+	for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
+		uint64_t delta;
 
-	if (td->bw_log)
-		add_log_sample(td, td->bw_log, rate, ddir, bs);
+		delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
+		if (!delta)
+			continue; /* No entries for interval */
+
+		rate = delta * 1000 / spent / 1024;
+		add_stat_sample(&ts->bw_stat[ddir], rate);
+
+		if (td->bw_log)
+			add_log_sample(td, td->bw_log, rate, ddir, bs);
+
+		td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
+	}
 
 	fio_gettime(&td->bw_sample_time, NULL);
-	td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
 }
 
 void add_iops_sample(struct thread_data *td, enum fio_ddir ddir,
@@ -1065,15 +1614,24 @@ void add_iops_sample(struct thread_data *td, enum fio_ddir ddir,
 	if (spent < td->o.iops_avg_time)
 		return;
 
-	iops = ((td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]) * 1000) / spent;
+	/*
+	 * Compute both read and write rates for the interval.
+	 */
+	for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
+		uint64_t delta;
+
+		delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
+		if (!delta)
+			continue; /* No entries for interval */
+
+		iops = (delta * 1000) / spent;
+		add_stat_sample(&ts->iops_stat[ddir], iops);
 
-	add_stat_sample(&ts->iops_stat[ddir], iops);
+		if (td->iops_log)
+			add_log_sample(td, td->iops_log, iops, ddir, 0);
 
-	if (td->iops_log) {
-		assert(iops);
-		add_log_sample(td, td->iops_log, iops, ddir, 0);
+		td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
 	}
 
 	fio_gettime(&td->iops_sample_time, NULL);
-	td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
 }