[fio.git] / stat.c

#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <libgen.h>
#include <math.h>

#include "fio.h"

/*
 * Cheesy number->string conversion, complete with carry rounding error.
 */
static char *num2str(unsigned long num, int maxlen, int base, int pow2)
{
	char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
	unsigned int thousand;
	char *buf;
	int i;

	if (pow2)
		thousand = 1024;
	else
		thousand = 1000;

	buf = malloc(128);

	for (i = 0; base > 1; i++)
		base /= thousand;

	do {
		int len, carry = 0;

		len = sprintf(buf, "%'lu", num);
		if (len <= maxlen) {
			if (i >= 1) {
				buf[len] = postfix[i];
				buf[len + 1] = '\0';
			}
			return buf;
		}

		if ((num % thousand) >= (thousand / 2))
			carry = 1;

		num /= thousand;
		num += carry;
		i++;
	} while (i <= 5);

	return buf;
}

void update_rusage_stat(struct thread_data *td)
{
	struct thread_stat *ts = &td->ts;

	getrusage(RUSAGE_SELF, &ts->ru_end);

	ts->usr_time += mtime_since(&ts->ru_start.ru_utime, &ts->ru_end.ru_utime);
	ts->sys_time += mtime_since(&ts->ru_start.ru_stime, &ts->ru_end.ru_stime);
	ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw);
	
	memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end));
}

static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
		    double *mean, double *dev)
{
	double n = is->samples;

	if (is->samples == 0)
		return 0;

	*min = is->min_val;
	*max = is->max_val;

	n = (double) is->samples;
	*mean = is->mean;

	if (n > 1.0)
		*dev = sqrt(is->S / (n - 1.0));
	else
		*dev = -1.0;

	return 1;
}

static void show_group_stats(struct group_run_stats *rs, int id)
{
	char *p1, *p2, *p3, *p4;
	const char *ddir_str[] = { "   READ", "  WRITE" };
	int i;

	log_info("\nRun status group %d (all jobs):\n", id);

	for (i = 0; i <= DDIR_WRITE; i++) {
		if (!rs->max_run[i])
			continue;

		p1 = num2str(rs->io_kb[i], 6, 1000, 1);
		p2 = num2str(rs->agg[i], 6, 1000, 1);
		p3 = num2str(rs->min_bw[i], 6, 1000, 1);
		p4 = num2str(rs->max_bw[i], 6, 1000, 1);

		log_info("%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[i], rs->max_run[i]);

		free(p1);
		free(p2);
		free(p3);
		free(p4);
	}
}

#define ts_total_io_u(ts)	\
	((ts)->total_io_u[0] + (ts)->total_io_u[1])

static void stat_calc_dist(struct thread_stat *ts, double *io_u_dist)
{
	int i;

	/*
	 * Do depth distribution calculations
	 */
	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
		io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts_total_io_u(ts);
		io_u_dist[i] *= 100.0;
		if (io_u_dist[i] < 0.1 && ts->io_u_map[i])
			io_u_dist[i] = 0.1;
	}
}

static void stat_calc_lat(struct thread_stat *ts, double *dst,
			  unsigned int *src, int nr)
{
	int i;

	/*
	 * Do latency distribution calculations
	 */
	for (i = 0; i < nr; i++) {
		dst[i] = (double) src[i] / (double) ts_total_io_u(ts);
		dst[i] *= 100.0;
		if (dst[i] < 0.01 && src[i])
			dst[i] = 0.01;
	}
}

static void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
{
	stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
}

static void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
{
	stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
}

static int usec_to_msec(unsigned long *min, unsigned long *max, double *mean,
			double *dev)
{
	if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) {
		*min /= 1000;
		*max /= 1000;
		*mean /= 1000.0;
		*dev /= 1000.0;
		return 0;
	}

	return 1;
}

static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
			     int ddir)
{
	const char *ddir_str[] = { "read ", "write" };
	unsigned long min, max;
	unsigned long long bw, iops;
	double mean, dev;
	char *io_p, *bw_p, *iops_p;

	if (!ts->runtime[ddir])
		return;

	bw = ts->io_bytes[ddir] / ts->runtime[ddir];
	iops = (1000 * ts->total_io_u[ddir]) / ts->runtime[ddir];
	io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1000, 1);
	bw_p = num2str(bw, 6, 1000, 1);
	iops_p = num2str(iops, 6, 1, 0);

	log_info("  %s: io=%siB, bw=%siB/s, iops=%s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, iops_p, ts->runtime[ddir]);

	free(io_p);
	free(bw_p);
	free(iops_p);

	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
		const char *base = "(usec)";

		if (!usec_to_msec(&min, &max, &mean, &dev))
			base = "(msec)";

		log_info("    slat %s: min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", base, min, max, mean, dev);
	}
	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
		const char *base = "(usec)";

		if (!usec_to_msec(&min, &max, &mean, &dev))
			base = "(msec)";

		log_info("    clat %s: min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", base, min, max, mean, dev);
	}
	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
		double p_of_agg;

		p_of_agg = mean * 100 / (double) rs->agg[ddir];
		log_info("    bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, mean, dev);
	}
}

static void show_lat(double *io_u_lat, int nr, const char **ranges,
		     const char *msg)
{
	int new_line = 1, i, line = 0;

	for (i = 0; i < nr; i++) {
		if (io_u_lat[i] <= 0.0)
			continue;
		if (new_line) {
			log_info("     lat (%s): ", msg);
			new_line = 0;
			line = 0;
		}
		if (line)
			log_info(", ");
		log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
		line++;
		if (line == 5)
			new_line = 1;
	}

}

static void show_lat_u(double *io_u_lat_u)
{
	const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
				 "250=", "500=", "750=", "1000=", };

	show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
}

static void show_lat_m(double *io_u_lat_m)
{
	const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
				 "250=", "500=", "750=", "1000=", "2000=",
				 ">=2000=", };

	show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
}

static void show_latencies(double *io_u_lat_u, double *io_u_lat_m)
{
	show_lat_u(io_u_lat_u);
	show_lat_m(io_u_lat_m);
	log_info("\n");
}

static void show_thread_status(struct thread_stat *ts,
			       struct group_run_stats *rs)
{
	double usr_cpu, sys_cpu;
	unsigned long runtime;
	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];

	if (!(ts->io_bytes[0] + ts->io_bytes[1]))
		return;

	if (!ts->error)
		log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->pid);
	else
		log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->verror, ts->pid);

	if (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);

	runtime = ts->total_run_time;
	if (runtime) {
		double runt = (double) runtime;

		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("  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, ts->ctx);

	stat_calc_dist(ts, io_u_dist);
	stat_calc_lat_u(ts, io_u_lat_u);
	stat_calc_lat_m(ts, io_u_lat_m);

	log_info("  IO depths    : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", 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]);
	log_info("     issued r/w: total=%lu/%lu, short=%lu/%lu\n", ts->total_io_u[0], ts->total_io_u[1], ts->short_io_u[0], ts->short_io_u[1]);

	show_latencies(io_u_lat_u, io_u_lat_m);
}

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;
	double mean, dev;

	bw = 0;
	if (ts->runtime[ddir])
		bw = ts->io_bytes[ddir] / ts->runtime[ddir];

	log_info(";%llu;%llu;%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]);

	if (calc_lat(&ts->slat_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 (calc_lat(&ts->clat_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 (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
		double p_of_agg;

		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);
}


static void show_thread_status_terse(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;

	log_info("%s;%d;%d", ts->name, ts->groupid, ts->error);

	show_ddir_status_terse(ts, rs, 0);
	show_ddir_status_terse(ts, rs, 1);

	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", usr_cpu, sys_cpu, ts->ctx);

	stat_calc_dist(ts, io_u_dist);
	stat_calc_lat_u(ts, io_u_lat_u);
	stat_calc_lat_m(ts, io_u_lat_m);

	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]);

	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
		log_info(";%3.2f%%", io_u_lat_u[i]);
	for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
		log_info(";%3.2f%%", io_u_lat_m[i]);
	log_info("\n");

	if (ts->description)
		log_info(";%s", ts->description);

	log_info("\n");
}

static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
{
	double mean, S;

	dst->min_val = min(dst->min_val, src->min_val);
	dst->max_val = max(dst->max_val, src->max_val);
	dst->samples += src->samples;

	/*
	 * Needs a new method for calculating stddev, we cannot just
	 * average them we do below for nr > 1
	 */
	if (nr == 1) {
		mean = src->mean;
		S = src->S;
	} else {
		mean = ((src->mean * (double) (nr - 1)) + dst->mean) / ((double) nr);
		S = ((src->S * (double) (nr - 1)) + dst->S) / ((double) nr);
	}

	dst->mean = mean;
	dst->S = S;
}

void show_run_stats(void)
{
	struct group_run_stats *runstats, *rs;
	struct thread_data *td;
	struct thread_stat *threadstats, *ts;
	int i, j, k, l, nr_ts, last_ts, idx;

	runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));

	for (i = 0; i < groupid + 1; i++) {
		rs = &runstats[i];

		memset(rs, 0, sizeof(*rs));
		rs->min_bw[0] = rs->min_run[0] = ~0UL;
		rs->min_bw[1] = rs->min_run[1] = ~0UL;
	}

	/*
	 * find out how many threads stats we need. if group reporting isn't
	 * enabled, it's one-per-td.
	 */
	nr_ts = 0;
	last_ts = -1;
	for_each_td(td, i) {
		if (!td->o.group_reporting) {
			nr_ts++;
			continue;
		}
		if (last_ts == td->groupid)
			continue;

		last_ts = td->groupid;
		nr_ts++;
	}

	threadstats = malloc(nr_ts * sizeof(struct thread_stat));

	for (i = 0; i < nr_ts; i++) {
		ts = &threadstats[i];

		memset(ts, 0, sizeof(*ts));
		for (j = 0; j <= DDIR_WRITE; j++) {
			ts->clat_stat[j].min_val = -1UL;
			ts->slat_stat[j].min_val = -1UL;
			ts->bw_stat[j].min_val = -1UL;
		}
		ts->groupid = -1;
	}

	j = 0;
	last_ts = -1;
	idx = 0;
	for_each_td(td, i) {
		if (idx && (!td->o.group_reporting ||
		    (td->o.group_reporting && last_ts != td->groupid))) {
			idx = 0;
			j++;
		}

		last_ts = td->groupid;

		ts = &threadstats[j];

		idx++;
		ts->members++;

		if (ts->groupid == -1) {
			/*
			 * These are per-group shared already
			 */
			ts->name = td->o.name;
			ts->description = td->o.description;
			ts->groupid = td->groupid;

			/*
			 * first pid in group, not very useful...
			 */
			ts->pid = td->pid;
		}

		if (td->error && !ts->error) {
			ts->error = td->error;
			ts->verror = td->verror;
		}

		for (l = 0; l <= DDIR_WRITE; l++) {
			sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx);
			sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx);
			sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx);

			ts->stat_io_bytes[l] += td->ts.stat_io_bytes[l];
			ts->io_bytes[l] += td->ts.io_bytes[l];

			if (ts->runtime[l] < td->ts.runtime[l])
				ts->runtime[l] = td->ts.runtime[l];
		}

		ts->usr_time += td->ts.usr_time;
		ts->sys_time += td->ts.sys_time;
		ts->ctx += td->ts.ctx;

		for (k = 0; k < FIO_IO_U_MAP_NR; k++)
			ts->io_u_map[k] += td->ts.io_u_map[k];
		for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
			ts->io_u_lat_u[k] += td->ts.io_u_lat_u[k];
		for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
			ts->io_u_lat_m[k] += td->ts.io_u_lat_m[k];


		for (k = 0; k <= DDIR_WRITE; k++) {
			ts->total_io_u[k] += td->ts.total_io_u[k];
			ts->short_io_u[k] += td->ts.short_io_u[k];
		}

		ts->total_run_time += td->ts.total_run_time;
	}

	for (i = 0; i < nr_ts; i++) {
		unsigned long long bw;

		ts = &threadstats[i];
		rs = &runstats[ts->groupid];

		for (j = 0; j <= DDIR_WRITE; j++) {
			if (!ts->runtime[j])
				continue;
			if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
				rs->min_run[j] = ts->runtime[j];
			if (ts->runtime[j] > rs->max_run[j])
				rs->max_run[j] = ts->runtime[j];

			bw = 0;
			if (ts->runtime[j])
				bw = ts->io_bytes[j] / (unsigned long long) ts->runtime[j];
			if (bw < rs->min_bw[j])
				rs->min_bw[j] = bw;
			if (bw > rs->max_bw[j])
				rs->max_bw[j] = bw;

			rs->io_kb[j] += ts->io_bytes[j] >> 10;
		}
	}

	for (i = 0; i < groupid + 1; i++) {
		rs = &runstats[i];

		if (rs->max_run[0])
			rs->agg[0] = (rs->io_kb[0]*1024) / rs->max_run[0];
		if (rs->max_run[1])
			rs->agg[1] = (rs->io_kb[1]*1024) / rs->max_run[1];
	}

	/*
	 * don't overwrite last signal output
	 */
	if (!terse_output)
		printf("\n");

	for (i = 0; i < nr_ts; i++) {
		ts = &threadstats[i];
		rs = &runstats[ts->groupid];

		if (terse_output)
			show_thread_status_terse(ts, rs);
		else
			show_thread_status(ts, rs);
	}

	if (!terse_output) {
		for (i = 0; i < groupid + 1; i++)
			show_group_stats(&runstats[i], i);

		show_disk_util();
	}

	free(runstats);
	free(threadstats);
}

static inline void add_stat_sample(struct io_stat *is, unsigned long data)
{
	double val = data;
	double delta;

	if (data > is->max_val)
		is->max_val = data;
	if (data < is->min_val)
		is->min_val = data;

	delta = val - is->mean;
	if (delta) {
		is->mean += delta / (is->samples + 1.0);
		is->S += delta * (val - is->mean);
	}

	is->samples++;
}

static void __add_log_sample(struct io_log *iolog, unsigned long val,
			     enum fio_ddir ddir, unsigned long time)
{
	if (iolog->nr_samples == iolog->max_samples) {
		int new_size = sizeof(struct io_sample) * iolog->max_samples*2;

		iolog->log = realloc(iolog->log, new_size);
		iolog->max_samples <<= 1;
	}

	iolog->log[iolog->nr_samples].val = val;
	iolog->log[iolog->nr_samples].time = time;
	iolog->log[iolog->nr_samples].ddir = ddir;
	iolog->nr_samples++;
}

static void add_log_sample(struct thread_data *td, struct io_log *iolog,
			   unsigned long val, enum fio_ddir ddir)
{
	__add_log_sample(iolog, val, ddir, mtime_since_now(&td->epoch));
}

void add_agg_sample(unsigned long val, enum fio_ddir ddir)
{
	struct io_log *iolog = agg_io_log[ddir];

	__add_log_sample(iolog, val, ddir, mtime_since_genesis());
}

void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
		     unsigned long usec)
{
	struct thread_stat *ts = &td->ts;

	add_stat_sample(&ts->clat_stat[ddir], usec);

	if (ts->clat_log)
		add_log_sample(td, ts->clat_log, usec, ddir);
}

void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
		     unsigned long usec)
{
	struct thread_stat *ts = &td->ts;

	add_stat_sample(&ts->slat_stat[ddir], usec);

	if (ts->slat_log)
		add_log_sample(td, ts->slat_log, usec, ddir);
}

void add_bw_sample(struct thread_data *td, enum fio_ddir ddir,
		   struct timeval *t)
{
	struct thread_stat *ts = &td->ts;
	unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t);
	unsigned long rate;

	if (spent < td->o.bw_avg_time)
		return;

	rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent;
	add_stat_sample(&ts->bw_stat[ddir], rate);

	if (ts->bw_log)
		add_log_sample(td, ts->bw_log, rate, ddir);

	fio_gettime(&ts->stat_sample_time[ddir], NULL);
	ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
}
Commit	Line	Data
3c39a379 JA	1	#include <stdio.h>
	2	#include <string.h>
	3	#include <sys/time.h>
	4	#include <sys/types.h>
5c4e1dbc	5	#include <sys/stat.h>
3c39a379 JA	6	#include <dirent.h>
	7	#include <libgen.h>
	8	#include <math.h>
	9
	10	#include "fio.h"
3c39a379	11
dbe1125e	12	/*
34403fb1	13	* Cheesy number->string conversion, complete with carry rounding error.
dbe1125e	14	*/
b3605062	15	static char *num2str(unsigned long num, int maxlen, int base, int pow2)
dbe1125e	16	{
b3605062 JA	17	char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
b3605062 JA	18	unsigned int thousand;
dbe1125e JA	19	char *buf;
	20	int i;
	21
b3605062 JA	22	if (pow2)
	23	thousand = 1024;
	24	else
	25	thousand = 1000;
	26
dbe1125e JA	27	buf = malloc(128);
	28
	29	for (i = 0; base > 1; i++)
	30	base /= thousand;
	31
	32	do {
	33	int len, carry = 0;
	34
	35	len = sprintf(buf, "%'lu", num);
	36	if (len <= maxlen) {
b3605062 JA	37	if (i >= 1) {
	38	buf[len] = postfix[i];
	39	buf[len + 1] = '\0';
	40	}
dbe1125e JA	41	return buf;
	42	}
	43
	44	if ((num % thousand) >= (thousand / 2))
	45	carry = 1;
	46
	47	num /= thousand;
	48	num += carry;
	49	i++;
f3502ba2	50	} while (i <= 5);
dbe1125e JA	51
	52	return buf;
	53	}
	54
3c39a379 JA	55	void update_rusage_stat(struct thread_data *td)
3c39a379 JA	56	{
756867bd	57	struct thread_stat *ts = &td->ts;
3c39a379	58
079ad09b JA	59	getrusage(RUSAGE_SELF, &ts->ru_end);
	60
	61	ts->usr_time += mtime_since(&ts->ru_start.ru_utime, &ts->ru_end.ru_utime);
	62	ts->sys_time += mtime_since(&ts->ru_start.ru_stime, &ts->ru_end.ru_stime);
	63	ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw);
3c39a379	64
079ad09b	65	memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end));
3c39a379 JA	66	}
	67
	68	static int calc_lat(struct io_stat is, unsigned long min, unsigned long *max,
	69	double mean, double dev)
	70	{
68704084	71	double n = is->samples;
3c39a379 JA	72
	73	if (is->samples == 0)
	74	return 0;
	75
	76	*min = is->min_val;
	77	*max = is->max_val;
	78
	79	n = (double) is->samples;
68704084	80	*mean = is->mean;
e6d276f2	81
68704084 JA	82	if (n > 1.0)
68704084 JA	83	*dev = sqrt(is->S / (n - 1.0));
ef9c5c40	84	else
68704084	85	*dev = -1.0;
ef9c5c40	86
3c39a379 JA	87	return 1;
	88	}
	89
	90	static void show_group_stats(struct group_run_stats *rs, int id)
	91	{
dbe1125e JA	92	char p1, p2, p3, p4;
	93	const char *ddir_str[] = { " READ", " WRITE" };
	94	int i;
	95
6d86144d	96	log_info("\nRun status group %d (all jobs):\n", id);
3c39a379	97
dbe1125e JA	98	for (i = 0; i <= DDIR_WRITE; i++) {
	99	if (!rs->max_run[i])
	100	continue;
	101
b3605062 JA	102	p1 = num2str(rs->io_kb[i], 6, 1000, 1);
	103	p2 = num2str(rs->agg[i], 6, 1000, 1);
	104	p3 = num2str(rs->min_bw[i], 6, 1000, 1);
	105	p4 = num2str(rs->max_bw[i], 6, 1000, 1);
dbe1125e	106
6d86144d	107	log_info("%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[i], rs->max_run[i]);
dbe1125e JA	108
	109	free(p1);
	110	free(p2);
	111	free(p3);
	112	free(p4);
	113	}
3c39a379 JA	114	}
3c39a379 JA	115
b3605062 JA	116	#define ts_total_io_u(ts) \
	117	((ts)->total_io_u[0] + (ts)->total_io_u[1])
	118
2270890c JA	119	static void stat_calc_dist(struct thread_stat ts, double io_u_dist)
	120	{
	121	int i;
	122
	123	/*
	124	* Do depth distribution calculations
	125	*/
	126	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
b3605062	127	io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts_total_io_u(ts);
2270890c	128	io_u_dist[i] *= 100.0;
d0f62ba3 JA	129	if (io_u_dist[i] < 0.1 && ts->io_u_map[i])
d0f62ba3 JA	130	io_u_dist[i] = 0.1;
2270890c JA	131	}
	132	}
	133
04a0feae JA	134	static void stat_calc_lat(struct thread_stat ts, double dst,
04a0feae JA	135	unsigned int *src, int nr)
2270890c JA	136	{
	137	int i;
	138
	139	/*
	140	* Do latency distribution calculations
	141	*/
04a0feae JA	142	for (i = 0; i < nr; i++) {
	143	dst[i] = (double) src[i] / (double) ts_total_io_u(ts);
	144	dst[i] *= 100.0;
	145	if (dst[i] < 0.01 && src[i])
	146	dst[i] = 0.01;
2270890c JA	147	}
	148	}
	149
04a0feae JA	150	static void stat_calc_lat_u(struct thread_stat ts, double io_u_lat)
	151	{
	152	stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
	153	}
	154
	155	static void stat_calc_lat_m(struct thread_stat ts, double io_u_lat)
	156	{
	157	stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
	158	}
	159
ea2accc5 JA	160	static int usec_to_msec(unsigned long min, unsigned long max, double *mean,
	161	double *dev)
	162	{
	163	if (min > 1000 && max > 1000 && mean > 1000.0 && dev > 1000.0) {
	164	*min /= 1000;
	165	*max /= 1000;
	166	*mean /= 1000.0;
	167	*dev /= 1000.0;
	168	return 0;
	169	}
	170
	171	return 1;
	172	}
	173
756867bd	174	static void show_ddir_status(struct group_run_stats rs, struct thread_stat ts,
3c39a379 JA	175	int ddir)
3c39a379 JA	176	{
3c9b60c1	177	const char *ddir_str[] = { "read ", "write" };
3c39a379	178	unsigned long min, max;
b3605062	179	unsigned long long bw, iops;
3c39a379	180	double mean, dev;
b3605062	181	char io_p, bw_p, *iops_p;
3c39a379	182
756867bd	183	if (!ts->runtime[ddir])
3c39a379 JA	184	return;
3c39a379 JA	185
756867bd	186	bw = ts->io_bytes[ddir] / ts->runtime[ddir];
b3605062 JA	187	iops = (1000 * ts->total_io_u[ddir]) / ts->runtime[ddir];
	188	io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1000, 1);
	189	bw_p = num2str(bw, 6, 1000, 1);
	190	iops_p = num2str(iops, 6, 1, 0);
dbe1125e	191
6d86144d	192	log_info(" %s: io=%siB, bw=%siB/s, iops=%s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, iops_p, ts->runtime[ddir]);
dbe1125e JA	193
	194	free(io_p);
	195	free(bw_p);
b3605062	196	free(iops_p);
3c39a379	197
d85f5118 JA	198	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
	199	const char *base = "(usec)";
	200
ea2accc5	201	if (!usec_to_msec(&min, &max, &mean, &dev))
d85f5118	202	base = "(msec)";
ea2accc5	203
d85f5118 JA	204	log_info(" slat %s: min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", base, min, max, mean, dev);
	205	}
	206	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
	207	const char *base = "(usec)";
	208
ea2accc5 JA	209	if (!usec_to_msec(&min, &max, &mean, &dev))
	210	base = "(msec)";
	211
d85f5118 JA	212	log_info(" clat %s: min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", base, min, max, mean, dev);
d85f5118 JA	213	}
079ad09b	214	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
3c39a379 JA	215	double p_of_agg;
	216
	217	p_of_agg = mean * 100 / (double) rs->agg[ddir];
6d86144d	218	log_info(" bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, mean, dev);
3c39a379 JA	219	}
	220	}
	221
04a0feae JA	222	static void show_lat(double io_u_lat, int nr, const char *ranges,
	223	const char *msg)
	224	{
	225	int new_line = 1, i, line = 0;
	226
	227	for (i = 0; i < nr; i++) {
	228	if (io_u_lat[i] <= 0.0)
	229	continue;
	230	if (new_line) {
	231	log_info(" lat (%s): ", msg);
	232	new_line = 0;
	233	line = 0;
	234	}
	235	if (line)
	236	log_info(", ");
	237	log_info("%s%3.2f%%", ranges[i], io_u_lat[i]);
	238	line++;
	239	if (line == 5)
	240	new_line = 1;
	241	}
	242
	243	}
	244
	245	static void show_lat_u(double *io_u_lat_u)
	246	{
	247	const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
	248	"250=", "500=", "750=", "1000=", };
	249
	250	show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec");
	251	}
	252
	253	static void show_lat_m(double *io_u_lat_m)
	254	{
	255	const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
	256	"250=", "500=", "750=", "1000=", "2000=",
	257	">=2000=", };
	258
	259	show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec");
	260	}
	261
	262	static void show_latencies(double io_u_lat_u, double io_u_lat_m)
	263	{
	264	show_lat_u(io_u_lat_u);
	265	show_lat_m(io_u_lat_m);
	266	log_info("\n");
	267	}
	268
756867bd	269	static void show_thread_status(struct thread_stat *ts,
3c39a379 JA	270	struct group_run_stats *rs)
	271	{
	272	double usr_cpu, sys_cpu;
69008999	273	unsigned long runtime;
71619dc2	274	double io_u_dist[FIO_IO_U_MAP_NR];
04a0feae JA	275	double io_u_lat_u[FIO_IO_U_LAT_U_NR];
04a0feae JA	276	double io_u_lat_m[FIO_IO_U_LAT_M_NR];
3c39a379	277
756867bd	278	if (!(ts->io_bytes[0] + ts->io_bytes[1]))
3c39a379 JA	279	return;
3c39a379 JA	280
756867bd	281	if (!ts->error)
6d86144d	282	log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->pid);
6d663077	283	else
6d86144d	284	log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->verror, ts->pid);
3c39a379	285
7bdce1bd	286	if (ts->description)
6d86144d	287	log_info(" Description : [%s]\n", ts->description);
7bdce1bd	288
756867bd JA	289	if (ts->io_bytes[DDIR_READ])
	290	show_ddir_status(rs, ts, DDIR_READ);
	291	if (ts->io_bytes[DDIR_WRITE])
	292	show_ddir_status(rs, ts, DDIR_WRITE);
3c39a379	293
756867bd	294	runtime = ts->total_run_time;
69008999	295	if (runtime) {
1e97cce9	296	double runt = (double) runtime;
3c39a379	297
756867bd JA	298	usr_cpu = (double) ts->usr_time * 100 / runt;
756867bd JA	299	sys_cpu = (double) ts->sys_time * 100 / runt;
3c39a379 JA	300	} else {
	301	usr_cpu = 0;
	302	sys_cpu = 0;
	303	}
	304
6d86144d	305	log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, ts->ctx);
71619dc2	306
2270890c	307	stat_calc_dist(ts, io_u_dist);
04a0feae JA	308	stat_calc_lat_u(ts, io_u_lat_u);
04a0feae JA	309	stat_calc_lat_m(ts, io_u_lat_m);
71619dc2	310
6d86144d	311	log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", 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]);
30061b97	312	log_info(" issued r/w: total=%lu/%lu, short=%lu/%lu\n", ts->total_io_u[0], ts->total_io_u[1], ts->short_io_u[0], ts->short_io_u[1]);
61697c37	313
04a0feae	314	show_latencies(io_u_lat_u, io_u_lat_m);
3c39a379 JA	315	}
3c39a379 JA	316
756867bd	317	static void show_ddir_status_terse(struct thread_stat *ts,
c6ae0a5b JA	318	struct group_run_stats *rs, int ddir)
	319	{
	320	unsigned long min, max;
	321	unsigned long long bw;
	322	double mean, dev;
	323
	324	bw = 0;
756867bd JA	325	if (ts->runtime[ddir])
756867bd JA	326	bw = ts->io_bytes[ddir] / ts->runtime[ddir];
c6ae0a5b	327
6d86144d	328	log_info(";%llu;%llu;%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]);
c6ae0a5b	329
079ad09b	330	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
6d86144d	331	log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
c6ae0a5b	332	else
6d86144d	333	log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
c6ae0a5b	334
079ad09b	335	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
6d86144d	336	log_info(";%lu;%lu;%f;%f", min, max, mean, dev);
c6ae0a5b	337	else
6d86144d	338	log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
c6ae0a5b	339
079ad09b	340	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
c6ae0a5b JA	341	double p_of_agg;
	342
	343	p_of_agg = mean * 100 / (double) rs->agg[ddir];
6d86144d	344	log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
c6ae0a5b	345	} else
6d86144d	346	log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
c6ae0a5b JA	347	}
	348
	349
756867bd	350	static void show_thread_status_terse(struct thread_stat *ts,
c6ae0a5b JA	351	struct group_run_stats *rs)
c6ae0a5b JA	352	{
2270890c	353	double io_u_dist[FIO_IO_U_MAP_NR];
04a0feae JA	354	double io_u_lat_u[FIO_IO_U_LAT_U_NR];
04a0feae JA	355	double io_u_lat_m[FIO_IO_U_LAT_M_NR];
c6ae0a5b	356	double usr_cpu, sys_cpu;
04a0feae	357	int i;
c6ae0a5b	358
6d86144d	359	log_info("%s;%d;%d", ts->name, ts->groupid, ts->error);
c6ae0a5b	360
756867bd JA	361	show_ddir_status_terse(ts, rs, 0);
756867bd JA	362	show_ddir_status_terse(ts, rs, 1);
c6ae0a5b	363
756867bd JA	364	if (ts->total_run_time) {
756867bd JA	365	double runt = (double) ts->total_run_time;
c6ae0a5b	366
756867bd JA	367	usr_cpu = (double) ts->usr_time * 100 / runt;
756867bd JA	368	sys_cpu = (double) ts->sys_time * 100 / runt;
c6ae0a5b JA	369	} else {
	370	usr_cpu = 0;
	371	sys_cpu = 0;
	372	}
	373
6d86144d	374	log_info(";%f%%;%f%%;%lu", usr_cpu, sys_cpu, ts->ctx);
2270890c JA	375
2270890c JA	376	stat_calc_dist(ts, io_u_dist);
04a0feae JA	377	stat_calc_lat_u(ts, io_u_lat_u);
04a0feae JA	378	stat_calc_lat_m(ts, io_u_lat_m);
2270890c	379
6d86144d	380	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]);
2270890c	381
04a0feae JA	382	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
	383	log_info(";%3.2f%%", io_u_lat_u[i]);
	384	for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
	385	log_info(";%3.2f%%", io_u_lat_m[i]);
	386	log_info("\n");
2270890c JA	387
2270890c JA	388	if (ts->description)
6d86144d	389	log_info(";%s", ts->description);
2270890c	390
6d86144d	391	log_info("\n");
756867bd JA	392	}
756867bd JA	393
197574e4	394	static void sum_stat(struct io_stat dst, struct io_stat src, int nr)
756867bd JA	395	{
	396	double mean, S;
	397
	398	dst->min_val = min(dst->min_val, src->min_val);
	399	dst->max_val = max(dst->max_val, src->max_val);
	400	dst->samples += src->samples;
	401
	402	/*
	403	* Needs a new method for calculating stddev, we cannot just
	404	* average them we do below for nr > 1
	405	*/
	406	if (nr == 1) {
	407	mean = src->mean;
	408	S = src->S;
	409	} else {
c39cced6 JA	410	mean = ((src->mean * (double) (nr - 1)) + dst->mean) / ((double) nr);
c39cced6 JA	411	S = ((src->S * (double) (nr - 1)) + dst->S) / ((double) nr);
756867bd JA	412	}
	413
	414	dst->mean = mean;
	415	dst->S = S;
	416	}
	417
3c39a379 JA	418	void show_run_stats(void)
	419	{
	420	struct group_run_stats runstats, rs;
	421	struct thread_data *td;
756867bd	422	struct thread_stat threadstats, ts;
197574e4	423	int i, j, k, l, nr_ts, last_ts, idx;
3c39a379 JA	424
	425	runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
	426
	427	for (i = 0; i < groupid + 1; i++) {
	428	rs = &runstats[i];
	429
	430	memset(rs, 0, sizeof(*rs));
	431	rs->min_bw[0] = rs->min_run[0] = ~0UL;
	432	rs->min_bw[1] = rs->min_run[1] = ~0UL;
	433	}
	434
756867bd JA	435	/*
	436	* find out how many threads stats we need. if group reporting isn't
	437	* enabled, it's one-per-td.
	438	*/
	439	nr_ts = 0;
	440	last_ts = -1;
	441	for_each_td(td, i) {
2dc1bbeb	442	if (!td->o.group_reporting) {
756867bd JA	443	nr_ts++;
	444	continue;
	445	}
	446	if (last_ts == td->groupid)
	447	continue;
	448
	449	last_ts = td->groupid;
	450	nr_ts++;
	451	}
	452
	453	threadstats = malloc(nr_ts * sizeof(struct thread_stat));
	454
	455	for (i = 0; i < nr_ts; i++) {
	456	ts = &threadstats[i];
	457
	458	memset(ts, 0, sizeof(*ts));
de64df05	459	for (j = 0; j <= DDIR_WRITE; j++) {
197574e4 JA	460	ts->clat_stat[j].min_val = -1UL;
	461	ts->slat_stat[j].min_val = -1UL;
	462	ts->bw_stat[j].min_val = -1UL;
	463	}
7abd0e3a	464	ts->groupid = -1;
756867bd JA	465	}
	466
	467	j = 0;
	468	last_ts = -1;
197574e4	469	idx = 0;
34572e28	470	for_each_td(td, i) {
2dc1bbeb JA	471	if (idx && (!td->o.group_reporting \|\|
2dc1bbeb JA	472	(td->o.group_reporting && last_ts != td->groupid))) {
7abd0e3a JA	473	idx = 0;
	474	j++;
	475	}
	476
	477	last_ts = td->groupid;
	478
756867bd JA	479	ts = &threadstats[j];
756867bd JA	480
197574e4	481	idx++;
6586ee89	482	ts->members++;
756867bd	483
7abd0e3a	484	if (ts->groupid == -1) {
2dc84ba7 JA	485	/*
	486	* These are per-group shared already
	487	*/
2dc1bbeb JA	488	ts->name = td->o.name;
2dc1bbeb JA	489	ts->description = td->o.description;
756867bd	490	ts->groupid = td->groupid;
2dc84ba7 JA	491
	492	/*
	493	* first pid in group, not very useful...
	494	*/
756867bd	495	ts->pid = td->pid;
2dc84ba7 JA	496	}
	497
	498	if (td->error && !ts->error) {
	499	ts->error = td->error;
756867bd JA	500	ts->verror = td->verror;
	501	}
	502
de64df05	503	for (l = 0; l <= DDIR_WRITE; l++) {
197574e4 JA	504	sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx);
	505	sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx);
	506	sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx);
756867bd	507
197574e4 JA	508	ts->stat_io_bytes[l] += td->ts.stat_io_bytes[l];
	509	ts->io_bytes[l] += td->ts.io_bytes[l];
	510
	511	if (ts->runtime[l] < td->ts.runtime[l])
	512	ts->runtime[l] = td->ts.runtime[l];
	513	}
756867bd JA	514
	515	ts->usr_time += td->ts.usr_time;
	516	ts->sys_time += td->ts.sys_time;
	517	ts->ctx += td->ts.ctx;
	518
	519	for (k = 0; k < FIO_IO_U_MAP_NR; k++)
	520	ts->io_u_map[k] += td->ts.io_u_map[k];
04a0feae JA	521	for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
	522	ts->io_u_lat_u[k] += td->ts.io_u_lat_u[k];
	523	for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
	524	ts->io_u_lat_m[k] += td->ts.io_u_lat_m[k];
	525
756867bd	526
30061b97	527	for (k = 0; k <= DDIR_WRITE; k++) {
b3605062	528	ts->total_io_u[k] += td->ts.total_io_u[k];
30061b97 JA	529	ts->short_io_u[k] += td->ts.short_io_u[k];
30061b97 JA	530	}
756867bd JA	531
756867bd JA	532	ts->total_run_time += td->ts.total_run_time;
756867bd JA	533	}
	534
	535	for (i = 0; i < nr_ts; i++) {
94370ac4	536	unsigned long long bw;
3c39a379	537
756867bd JA	538	ts = &threadstats[i];
756867bd JA	539	rs = &runstats[ts->groupid];
3c39a379	540
de64df05	541	for (j = 0; j <= DDIR_WRITE; j++) {
94370ac4 JA	542	if (!ts->runtime[j])
	543	continue;
	544	if (ts->runtime[j] < rs->min_run[j] \|\| !rs->min_run[j])
	545	rs->min_run[j] = ts->runtime[j];
	546	if (ts->runtime[j] > rs->max_run[j])
	547	rs->max_run[j] = ts->runtime[j];
	548
	549	bw = 0;
	550	if (ts->runtime[j])
	551	bw = ts->io_bytes[j] / (unsigned long long) ts->runtime[j];
	552	if (bw < rs->min_bw[j])
	553	rs->min_bw[j] = bw;
	554	if (bw > rs->max_bw[j])
	555	rs->max_bw[j] = bw;
	556
	557	rs->io_kb[j] += ts->io_bytes[j] >> 10;
	558	}
3c39a379 JA	559	}
	560
	561	for (i = 0; i < groupid + 1; i++) {
	562	rs = &runstats[i];
	563
	564	if (rs->max_run[0])
	565	rs->agg[0] = (rs->io_kb[0]*1024) / rs->max_run[0];
	566	if (rs->max_run[1])
	567	rs->agg[1] = (rs->io_kb[1]*1024) / rs->max_run[1];
	568	}
	569
	570	/*
	571	* don't overwrite last signal output
	572	*/
c6ae0a5b JA	573	if (!terse_output)
c6ae0a5b JA	574	printf("\n");
3c39a379	575
756867bd JA	576	for (i = 0; i < nr_ts; i++) {
	577	ts = &threadstats[i];
	578	rs = &runstats[ts->groupid];
3c39a379	579
c6ae0a5b	580	if (terse_output)
756867bd	581	show_thread_status_terse(ts, rs);
c6ae0a5b	582	else
756867bd	583	show_thread_status(ts, rs);
3c39a379 JA	584	}
3c39a379 JA	585
c6ae0a5b JA	586	if (!terse_output) {
	587	for (i = 0; i < groupid + 1; i++)
	588	show_group_stats(&runstats[i], i);
3c39a379	589
c6ae0a5b JA	590	show_disk_util();
c6ae0a5b JA	591	}
eecf272f JA	592
eecf272f JA	593	free(runstats);
756867bd	594	free(threadstats);
3c39a379 JA	595	}
3c39a379 JA	596
68704084	597	static inline void add_stat_sample(struct io_stat *is, unsigned long data)
3c39a379	598	{
68704084	599	double val = data;
6660cc67	600	double delta;
68704084 JA	601
	602	if (data > is->max_val)
	603	is->max_val = data;
	604	if (data < is->min_val)
	605	is->min_val = data;
	606
	607	delta = val - is->mean;
ef11d737 JA	608	if (delta) {
	609	is->mean += delta / (is->samples + 1.0);
	610	is->S += delta * (val - is->mean);
	611	}
3c39a379	612
3c39a379 JA	613	is->samples++;
	614	}
	615
bb3884d8 JA	616	static void __add_log_sample(struct io_log *iolog, unsigned long val,
bb3884d8 JA	617	enum fio_ddir ddir, unsigned long time)
3c39a379 JA	618	{
	619	if (iolog->nr_samples == iolog->max_samples) {
	620	int new_size = sizeof(struct io_sample) * iolog->max_samples*2;
	621
	622	iolog->log = realloc(iolog->log, new_size);
	623	iolog->max_samples <<= 1;
	624	}
	625
	626	iolog->log[iolog->nr_samples].val = val;
bb3884d8	627	iolog->log[iolog->nr_samples].time = time;
3c39a379 JA	628	iolog->log[iolog->nr_samples].ddir = ddir;
	629	iolog->nr_samples++;
	630	}
	631
bb3884d8 JA	632	static void add_log_sample(struct thread_data td, struct io_log iolog,
	633	unsigned long val, enum fio_ddir ddir)
	634	{
	635	__add_log_sample(iolog, val, ddir, mtime_since_now(&td->epoch));
	636	}
	637
	638	void add_agg_sample(unsigned long val, enum fio_ddir ddir)
	639	{
	640	struct io_log *iolog = agg_io_log[ddir];
	641
	642	__add_log_sample(iolog, val, ddir, mtime_since_genesis());
	643	}
	644
1e97cce9	645	void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
d85f5118	646	unsigned long usec)
3c39a379	647	{
756867bd	648	struct thread_stat *ts = &td->ts;
079ad09b	649
d85f5118	650	add_stat_sample(&ts->clat_stat[ddir], usec);
3c39a379	651
079ad09b	652	if (ts->clat_log)
d85f5118	653	add_log_sample(td, ts->clat_log, usec, ddir);
3c39a379 JA	654	}
3c39a379 JA	655
1e97cce9	656	void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
d85f5118	657	unsigned long usec)
3c39a379	658	{
756867bd	659	struct thread_stat *ts = &td->ts;
079ad09b	660
d85f5118	661	add_stat_sample(&ts->slat_stat[ddir], usec);
3c39a379	662
079ad09b	663	if (ts->slat_log)
d85f5118	664	add_log_sample(td, ts->slat_log, usec, ddir);
3c39a379 JA	665	}
3c39a379 JA	666
1e97cce9 JA	667	void add_bw_sample(struct thread_data *td, enum fio_ddir ddir,
1e97cce9 JA	668	struct timeval *t)
3c39a379	669	{
756867bd	670	struct thread_stat *ts = &td->ts;
079ad09b	671	unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t);
3c39a379 JA	672	unsigned long rate;
3c39a379 JA	673
2dc1bbeb	674	if (spent < td->o.bw_avg_time)
3c39a379 JA	675	return;
3c39a379 JA	676
079ad09b JA	677	rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent;
079ad09b JA	678	add_stat_sample(&ts->bw_stat[ddir], rate);
3c39a379	679
079ad09b JA	680	if (ts->bw_log)
079ad09b JA	681	add_log_sample(td, ts->bw_log, rate, ddir);
3c39a379	682
079ad09b JA	683	fio_gettime(&ts->stat_sample_time[ddir], NULL);
079ad09b JA	684	ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
3c39a379	685	}