[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"

static struct itimerval itimer;
static struct list_head disk_list = LIST_HEAD_INIT(disk_list);
static dev_t last_dev;

/*
 * Cheasy number->string conversion, complete with carry rounding error.
 */
static char *num2str(unsigned long num, int maxlen, int base)
{
	/*
	 * could be passed in for 10^3 base, but every caller expects
	 * 2^10 base right now.
	 */
	const unsigned int thousand = 1024;
	char postfix[] = { 'K', 'M', 'G', 'P', 'E' };
	char *buf;
	int i;

	buf = malloc(128);

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

	do {
		int len, carry = 0;

		len = sprintf(buf, "%'lu", num);
		if (len <= maxlen) {
			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;
}

static int get_io_ticks(struct disk_util *du, struct disk_util_stat *dus)
{
	unsigned in_flight;
	char line[256];
	FILE *f;
	char *p;

	f = fopen(du->path, "r");
	if (!f)
		return 1;

	p = fgets(line, sizeof(line), f);
	if (!p) {
		fclose(f);
		return 1;
	}

	if (sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], &dus->merges[0], &dus->sectors[0], &dus->ticks[0], &dus->ios[1], &dus->merges[1], &dus->sectors[1], &dus->ticks[1], &in_flight, &dus->io_ticks, &dus->time_in_queue) != 11) {
		fclose(f);
		return 1;
	}

	fclose(f);
	return 0;
}

static void update_io_tick_disk(struct disk_util *du)
{
	struct disk_util_stat __dus, *dus, *ldus;
	struct timeval t;

	if (get_io_ticks(du, &__dus))
		return;

	dus = &du->dus;
	ldus = &du->last_dus;

	dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]);
	dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]);
	dus->ios[0] += (__dus.ios[0] - ldus->ios[0]);
	dus->ios[1] += (__dus.ios[1] - ldus->ios[1]);
	dus->merges[0] += (__dus.merges[0] - ldus->merges[0]);
	dus->merges[1] += (__dus.merges[1] - ldus->merges[1]);
	dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]);
	dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]);
	dus->io_ticks += (__dus.io_ticks - ldus->io_ticks);
	dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue);

	fio_gettime(&t, NULL);
	du->msec += mtime_since(&du->time, &t);
	memcpy(&du->time, &t, sizeof(t));
	memcpy(ldus, &__dus, sizeof(__dus));
}

void update_io_ticks(void)
{
	struct list_head *entry;
	struct disk_util *du;

	list_for_each(entry, &disk_list) {
		du = list_entry(entry, struct disk_util, list);
		update_io_tick_disk(du);
	}
}

static int disk_util_exists(dev_t dev)
{
	struct list_head *entry;
	struct disk_util *du;

	list_for_each(entry, &disk_list) {
		du = list_entry(entry, struct disk_util, list);

		if (du->dev == dev)
			return 1;
	}

	return 0;
}

static void disk_util_add(dev_t dev, char *path)
{
	struct disk_util *du, *__du;
	struct list_head *entry;

	du = malloc(sizeof(*du));
	memset(du, 0, sizeof(*du));
	INIT_LIST_HEAD(&du->list);
	sprintf(du->path, "%s/stat", path);
	du->name = strdup(basename(path));
	du->dev = dev;

	list_for_each(entry, &disk_list) {
		__du = list_entry(entry, struct disk_util, list);

		if (!strcmp(du->name, __du->name)) {
			free(du->name);
			free(du);
			return;
		}
	}

	fio_gettime(&du->time, NULL);
	get_io_ticks(du, &du->last_dus);

	list_add_tail(&du->list, &disk_list);
}

static int check_dev_match(dev_t dev, char *path)
{
	unsigned int major, minor;
	char line[256], *p;
	FILE *f;

	f = fopen(path, "r");
	if (!f) {
		perror("open path");
		return 1;
	}

	p = fgets(line, sizeof(line), f);
	if (!p) {
		fclose(f);
		return 1;
	}

	if (sscanf(p, "%u:%u", &major, &minor) != 2) {
		fclose(f);
		return 1;
	}

	if (((major << 8) | minor) == dev) {
		fclose(f);
		return 0;
	}

	fclose(f);
	return 1;
}

static int find_block_dir(dev_t dev, char *path)
{
	struct dirent *dir;
	struct stat st;
	int found = 0;
	DIR *D;

	D = opendir(path);
	if (!D)
		return 0;

	while ((dir = readdir(D)) != NULL) {
		char full_path[256];

		if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
			continue;

		sprintf(full_path, "%s/%s", path, dir->d_name);

		if (!strcmp(dir->d_name, "dev")) {
			if (!check_dev_match(dev, full_path)) {
				found = 1;
				break;
			}
		}

		if (lstat(full_path, &st) == -1) {
			perror("stat");
			break;
		}

		if (!S_ISDIR(st.st_mode) || S_ISLNK(st.st_mode))
			continue;

		found = find_block_dir(dev, full_path);
		if (found) {
			strcpy(path, full_path);
			break;
		}
	}

	closedir(D);
	return found;
}

void init_disk_util(struct thread_data *td)
{
	struct fio_file *f;
	struct stat st;
	char foo[PATH_MAX], tmp[PATH_MAX];
	dev_t dev;
	char *p;

	if (!td->do_disk_util || (td->io_ops->flags & (FIO_NETIO | FIO_NULLIO)))
		return;

	/*
	 * Just use the same file, they are on the same device.
	 */
	f = &td->files[0];
	if (!stat(f->file_name, &st)) {
		if (S_ISBLK(st.st_mode))
			dev = st.st_rdev;
		else
			dev = st.st_dev;
	} else {
		/*
		 * must be a file, open "." in that path
		 */
		strncpy(foo, f->file_name, PATH_MAX - 1);
		p = dirname(foo);
		if (stat(p, &st)) {
			perror("disk util stat");
			return;
		}

		dev = st.st_dev;
	}

	if (disk_util_exists(dev))
		return;

	/*
	 * for an fs without a device, we will repeatedly stat through
	 * sysfs which can take oodles of time for thousands of files. so
	 * cache the last lookup and compare with that before going through
	 * everything again.
	 */
	if (dev == last_dev)
		return;

	last_dev = dev;
		
	sprintf(foo, "/sys/block");
	if (!find_block_dir(dev, foo))
		return;

	/*
	 * If there's a ../queue/ directory there, we are inside a partition.
	 * Check if that is the case and jump back. For loop/md/dm etc we
	 * are already in the right spot.
	 */
	sprintf(tmp, "%s/../queue", foo);
	if (!stat(tmp, &st)) {
		p = dirname(foo);
		sprintf(tmp, "%s/queue", p);
		if (stat(tmp, &st)) {
			log_err("unknown sysfs layout\n");
			return;
		}
		strncpy(tmp, p, PATH_MAX - 1);
		sprintf(foo, "%s", tmp);
	}

	if (td->ioscheduler)
		td->sysfs_root = strdup(foo);

	disk_util_add(dev, foo);
}

void disk_util_timer_arm(void)
{
	itimer.it_value.tv_sec = 0;
	itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000;
	setitimer(ITIMER_REAL, &itimer, NULL);
}

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;

	fprintf(f_out, "\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, 1);
		p2 = num2str(rs->agg[i], 6, 1);
		p3 = num2str(rs->min_bw[i], 6, 1);
		p4 = num2str(rs->max_bw[i], 6, 1);

		fprintf(f_out, "%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[0], rs->max_run[0]);

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

static void show_disk_util(void)
{
	struct disk_util_stat *dus;
	struct list_head *entry, *next;
	struct disk_util *du;
	double util;

	fprintf(f_out, "\nDisk stats (read/write):\n");

	list_for_each(entry, &disk_list) {
		du = list_entry(entry, struct disk_util, list);
		dus = &du->dus;

		util = (double) 100 * du->dus.io_ticks / (double) du->msec;
		if (util > 100.0)
			util = 100.0;

		fprintf(f_out, "  %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util);
	}

	/*
	 * now free the list
	 */
	list_for_each_safe(entry, next, &disk_list) {
		list_del(entry);
		du = list_entry(entry, struct disk_util, list);
		free(du->name);
		free(du);
	}
}

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

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

	bw = td->io_bytes[ddir] / td->runtime[ddir];
	io_p = num2str(td->io_bytes[ddir] >> 10, 6, 1);
	bw_p = num2str(bw, 6, 1);

	fprintf(f_out, "  %s: io=%siB, bw=%siB/s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, td->runtime[ddir]);

	free(io_p);
	free(bw_p);

	ts = &td->ts;
	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
		fprintf(f_out, "    slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev);

	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
		fprintf(f_out, "    clat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", 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];
		fprintf(f_out, "    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_thread_status(struct thread_data *td,
			       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[FIO_IO_U_LAT_NR];
	int i;

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

	if (!td->error)
		fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n",td->name, td->groupid, td->error, td->pid);
	else
		fprintf(f_out, "%s: (groupid=%d): err=%2d (%s): pid=%d\n",td->name, td->groupid, td->error, td->verror, td->pid);

	if (td_read(td))
		show_ddir_status(td, rs, DDIR_READ);
	if (td_write(td))
		show_ddir_status(td, rs, DDIR_WRITE);

	runtime = mtime_since(&td->epoch, &td->end_time);
	if (runtime) {
		double runt = (double) runtime;

		usr_cpu = (double) td->ts.usr_time * 100 / runt;
		sys_cpu = (double) td->ts.sys_time * 100 / runt;
	} else {
		usr_cpu = 0;
		sys_cpu = 0;
	}

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

	/*
	 * Do depth distribution calculations
	 */
	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
		io_u_dist[i] = (double) td->io_u_map[i] / (double) td->total_io_u;
		io_u_dist[i] *= 100.0;
	}

	fprintf(f_out, "  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]);

	/*
	 * Do latency distribution calculations
	 */
	for (i = 0; i < FIO_IO_U_LAT_NR; i++) {
		io_u_lat[i] = (double) td->io_u_lat[i] / (double) td->total_io_u;
		io_u_lat[i] *= 100.0;
	}

	fprintf(f_out, "     lat (msec): 2=%3.1f%%, 4=%3.1f%%, 10=%3.1f%%, 20=%3.1f%%, 50=%3.1f%%, 100=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]);
	fprintf(f_out, "     lat (msec): 250=%3.1f%%, 500=%3.1f%%, 750=%3.1f%%, 1000=%3.1f%%, >=2000=%3.1f%%\n", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]);

	if (td->description)
		fprintf(f_out, "%s\n", td->description);
}

static void show_ddir_status_terse(struct thread_data *td,
				   struct group_run_stats *rs, int ddir)
{
	struct thread_stat *ts = &td->ts;
	unsigned long min, max;
	unsigned long long bw;
	double mean, dev;

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

	fprintf(f_out, ",%llu,%llu,%lu", td->io_bytes[ddir] >> 10, bw, td->runtime[ddir]);

	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
		fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev);
	else
		fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0);

	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
		fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev);
	else
		fprintf(f_out, ",%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];
		fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", min, max, p_of_agg, mean, dev);
	} else
		fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", 0UL, 0UL, 0.0, 0.0, 0.0);
		
}


static void show_thread_status_terse(struct thread_data *td,
				     struct group_run_stats *rs)
{
	double usr_cpu, sys_cpu;

	fprintf(f_out, "%s,%d,%d",td->name, td->groupid, td->error);

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

	if (td->runtime[0] + td->runtime[1]) {
		double runt = (double) (td->runtime[0] + td->runtime[1]);

		usr_cpu = (double) td->ts.usr_time * 100 / runt;
		sys_cpu = (double) td->ts.sys_time * 100 / runt;
	} else {
		usr_cpu = 0;
		sys_cpu = 0;
	}

	fprintf(f_out, ",%f%%,%f%%,%lu\n", usr_cpu, sys_cpu, td->ts.ctx);
}

void show_run_stats(void)
{
	struct group_run_stats *runstats, *rs;
	struct thread_data *td;
	int i;

	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;
	}

	for_each_td(td, i) {
		unsigned long long rbw, wbw;

		rs = &runstats[td->groupid];

		if (td->runtime[0] < rs->min_run[0] || !rs->min_run[0])
			rs->min_run[0] = td->runtime[0];
		if (td->runtime[0] > rs->max_run[0])
			rs->max_run[0] = td->runtime[0];
		if (td->runtime[1] < rs->min_run[1] || !rs->min_run[1])
			rs->min_run[1] = td->runtime[1];
		if (td->runtime[1] > rs->max_run[1])
			rs->max_run[1] = td->runtime[1];

		rbw = wbw = 0;
		if (td->runtime[0])
			rbw = td->io_bytes[0] / (unsigned long long) td->runtime[0];
		if (td->runtime[1])
			wbw = td->io_bytes[1] / (unsigned long long) td->runtime[1];

		if (rbw < rs->min_bw[0])
			rs->min_bw[0] = rbw;
		if (wbw < rs->min_bw[1])
			rs->min_bw[1] = wbw;
		if (rbw > rs->max_bw[0])
			rs->max_bw[0] = rbw;
		if (wbw > rs->max_bw[1])
			rs->max_bw[1] = wbw;

		rs->io_kb[0] += td->io_bytes[0] >> 10;
		rs->io_kb[1] += td->io_bytes[1] >> 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_each_td(td, i) {
		rs = &runstats[td->groupid];

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

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

		show_disk_util();
	}

	free(runstats);
}

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

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

	delta = val - is->mean;
	n = is->samples + 1.0;
	is->mean += delta / n;
	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 msec)
{
	struct thread_stat *ts = &td->ts;

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

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

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

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

	if (ts->slat_log)
		add_log_sample(td, ts->slat_log, msec, 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->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 JA	11
3c39a379 JA	12	static struct itimerval itimer;
5c4e1dbc	13	static struct list_head disk_list = LIST_HEAD_INIT(disk_list);
c0a6b0d8	14	static dev_t last_dev;
3c39a379	15
dbe1125e JA	16	/*
	17	* Cheasy number->string conversion, complete with carry rounding error.
	18	*/
	19	static char *num2str(unsigned long num, int maxlen, int base)
	20	{
	21	/*
	22	* could be passed in for 10^3 base, but every caller expects
	23	* 2^10 base right now.
	24	*/
c8c51efd	25	const unsigned int thousand = 1024;
f3502ba2	26	char postfix[] = { 'K', 'M', 'G', 'P', 'E' };
dbe1125e JA	27	char *buf;
	28	int i;
	29
	30	buf = malloc(128);
	31
	32	for (i = 0; base > 1; i++)
	33	base /= thousand;
	34
	35	do {
	36	int len, carry = 0;
	37
	38	len = sprintf(buf, "%'lu", num);
	39	if (len <= maxlen) {
	40	buf[len] = postfix[i];
	41	buf[len + 1] = '\0';
	42	return buf;
	43	}
	44
	45	if ((num % thousand) >= (thousand / 2))
	46	carry = 1;
	47
	48	num /= thousand;
	49	num += carry;
	50	i++;
f3502ba2	51	} while (i <= 5);
dbe1125e JA	52
	53	return buf;
	54	}
	55
3c39a379 JA	56	static int get_io_ticks(struct disk_util du, struct disk_util_stat dus)
	57	{
	58	unsigned in_flight;
	59	char line[256];
	60	FILE *f;
	61	char *p;
	62
	63	f = fopen(du->path, "r");
	64	if (!f)
	65	return 1;
	66
	67	p = fgets(line, sizeof(line), f);
	68	if (!p) {
	69	fclose(f);
	70	return 1;
	71	}
	72
	73	if (sscanf(p, "%u %u %llu %u %u %u %llu %u %u %u %u\n", &dus->ios[0], &dus->merges[0], &dus->sectors[0], &dus->ticks[0], &dus->ios[1], &dus->merges[1], &dus->sectors[1], &dus->ticks[1], &in_flight, &dus->io_ticks, &dus->time_in_queue) != 11) {
	74	fclose(f);
	75	return 1;
	76	}
	77
	78	fclose(f);
	79	return 0;
	80	}
	81
	82	static void update_io_tick_disk(struct disk_util *du)
	83	{
	84	struct disk_util_stat __dus, dus, ldus;
	85	struct timeval t;
	86
	87	if (get_io_ticks(du, &__dus))
	88	return;
	89
	90	dus = &du->dus;
	91	ldus = &du->last_dus;
	92
	93	dus->sectors[0] += (__dus.sectors[0] - ldus->sectors[0]);
	94	dus->sectors[1] += (__dus.sectors[1] - ldus->sectors[1]);
	95	dus->ios[0] += (__dus.ios[0] - ldus->ios[0]);
	96	dus->ios[1] += (__dus.ios[1] - ldus->ios[1]);
	97	dus->merges[0] += (__dus.merges[0] - ldus->merges[0]);
	98	dus->merges[1] += (__dus.merges[1] - ldus->merges[1]);
	99	dus->ticks[0] += (__dus.ticks[0] - ldus->ticks[0]);
	100	dus->ticks[1] += (__dus.ticks[1] - ldus->ticks[1]);
	101	dus->io_ticks += (__dus.io_ticks - ldus->io_ticks);
	102	dus->time_in_queue += (__dus.time_in_queue - ldus->time_in_queue);
	103
02bcaa8c	104	fio_gettime(&t, NULL);
3c39a379 JA	105	du->msec += mtime_since(&du->time, &t);
	106	memcpy(&du->time, &t, sizeof(t));
	107	memcpy(ldus, &__dus, sizeof(__dus));
	108	}
	109
	110	void update_io_ticks(void)
	111	{
	112	struct list_head *entry;
	113	struct disk_util *du;
	114
	115	list_for_each(entry, &disk_list) {
	116	du = list_entry(entry, struct disk_util, list);
	117	update_io_tick_disk(du);
	118	}
	119	}
	120
	121	static int disk_util_exists(dev_t dev)
	122	{
	123	struct list_head *entry;
	124	struct disk_util *du;
	125
	126	list_for_each(entry, &disk_list) {
	127	du = list_entry(entry, struct disk_util, list);
	128
	129	if (du->dev == dev)
	130	return 1;
	131	}
	132
	133	return 0;
	134	}
	135
	136	static void disk_util_add(dev_t dev, char *path)
	137	{
1188caf8 JA	138	struct disk_util du, __du;
1188caf8 JA	139	struct list_head *entry;
3c39a379	140
1188caf8	141	du = malloc(sizeof(*du));
3c39a379 JA	142	memset(du, 0, sizeof(*du));
	143	INIT_LIST_HEAD(&du->list);
	144	sprintf(du->path, "%s/stat", path);
	145	du->name = strdup(basename(path));
	146	du->dev = dev;
	147
1188caf8 JA	148	list_for_each(entry, &disk_list) {
	149	__du = list_entry(entry, struct disk_util, list);
	150
	151	if (!strcmp(du->name, __du->name)) {
	152	free(du->name);
	153	free(du);
	154	return;
	155	}
	156	}
	157
02bcaa8c	158	fio_gettime(&du->time, NULL);
3c39a379 JA	159	get_io_ticks(du, &du->last_dus);
	160
	161	list_add_tail(&du->list, &disk_list);
	162	}
	163
	164	static int check_dev_match(dev_t dev, char *path)
	165	{
	166	unsigned int major, minor;
	167	char line[256], *p;
	168	FILE *f;
	169
	170	f = fopen(path, "r");
	171	if (!f) {
	172	perror("open path");
	173	return 1;
	174	}
	175
	176	p = fgets(line, sizeof(line), f);
	177	if (!p) {
	178	fclose(f);
	179	return 1;
	180	}
	181
	182	if (sscanf(p, "%u:%u", &major, &minor) != 2) {
	183	fclose(f);
	184	return 1;
	185	}
	186
	187	if (((major << 8) \| minor) == dev) {
	188	fclose(f);
	189	return 0;
	190	}
	191
	192	fclose(f);
	193	return 1;
	194	}
	195
	196	static int find_block_dir(dev_t dev, char *path)
	197	{
	198	struct dirent *dir;
	199	struct stat st;
	200	int found = 0;
	201	DIR *D;
	202
	203	D = opendir(path);
	204	if (!D)
	205	return 0;
	206
	207	while ((dir = readdir(D)) != NULL) {
	208	char full_path[256];
	209
	210	if (!strcmp(dir->d_name, ".") \|\| !strcmp(dir->d_name, ".."))
	211	continue;
3c39a379 JA	212
	213	sprintf(full_path, "%s/%s", path, dir->d_name);
	214
	215	if (!strcmp(dir->d_name, "dev")) {
	216	if (!check_dev_match(dev, full_path)) {
	217	found = 1;
	218	break;
	219	}
	220	}
	221
3307d653	222	if (lstat(full_path, &st) == -1) {
3c39a379 JA	223	perror("stat");
	224	break;
	225	}
	226
	227	if (!S_ISDIR(st.st_mode) \|\| S_ISLNK(st.st_mode))
	228	continue;
	229
	230	found = find_block_dir(dev, full_path);
	231	if (found) {
	232	strcpy(path, full_path);
	233	break;
	234	}
	235	}
	236
	237	closedir(D);
	238	return found;
	239	}
	240
	241	void init_disk_util(struct thread_data *td)
	242	{
53cdc686	243	struct fio_file *f;
3c39a379	244	struct stat st;
0bbab0e7	245	char foo[PATH_MAX], tmp[PATH_MAX];
3c39a379 JA	246	dev_t dev;
	247	char *p;
	248
4d9345ae	249	if (!td->do_disk_util \|\| (td->io_ops->flags & (FIO_NETIO \| FIO_NULLIO)))
3c39a379 JA	250	return;
3c39a379 JA	251
53cdc686 JA	252	/*
	253	* Just use the same file, they are on the same device.
	254	*/
	255	f = &td->files[0];
	256	if (!stat(f->file_name, &st)) {
3c39a379 JA	257	if (S_ISBLK(st.st_mode))
	258	dev = st.st_rdev;
	259	else
	260	dev = st.st_dev;
	261	} else {
	262	/*
	263	* must be a file, open "." in that path
	264	*/
0bbab0e7	265	strncpy(foo, f->file_name, PATH_MAX - 1);
3c39a379 JA	266	p = dirname(foo);
	267	if (stat(p, &st)) {
	268	perror("disk util stat");
	269	return;
	270	}
	271
	272	dev = st.st_dev;
	273	}
	274
	275	if (disk_util_exists(dev))
	276	return;
c0a6b0d8 JA	277
	278	/*
	279	* for an fs without a device, we will repeatedly stat through
	280	* sysfs which can take oodles of time for thousands of files. so
	281	* cache the last lookup and compare with that before going through
	282	* everything again.
	283	*/
	284	if (dev == last_dev)
	285	return;
	286
	287	last_dev = dev;
3c39a379 JA	288
	289	sprintf(foo, "/sys/block");
	290	if (!find_block_dir(dev, foo))
	291	return;
	292
	293	/*
	294	* If there's a ../queue/ directory there, we are inside a partition.
	295	* Check if that is the case and jump back. For loop/md/dm etc we
	296	* are already in the right spot.
	297	*/
	298	sprintf(tmp, "%s/../queue", foo);
	299	if (!stat(tmp, &st)) {
	300	p = dirname(foo);
	301	sprintf(tmp, "%s/queue", p);
	302	if (stat(tmp, &st)) {
3b70d7e5	303	log_err("unknown sysfs layout\n");
3c39a379 JA	304	return;
3c39a379 JA	305	}
0bbab0e7	306	strncpy(tmp, p, PATH_MAX - 1);
84585003	307	sprintf(foo, "%s", tmp);
3c39a379 JA	308	}
3c39a379 JA	309
eecf272f JA	310	if (td->ioscheduler)
	311	td->sysfs_root = strdup(foo);
	312
3c39a379 JA	313	disk_util_add(dev, foo);
	314	}
	315
	316	void disk_util_timer_arm(void)
	317	{
	318	itimer.it_value.tv_sec = 0;
	319	itimer.it_value.tv_usec = DISK_UTIL_MSEC * 1000;
	320	setitimer(ITIMER_REAL, &itimer, NULL);
	321	}
	322
	323	void update_rusage_stat(struct thread_data *td)
	324	{
079ad09b	325	struct thread_stat *ts = &td->ts;
3c39a379	326
079ad09b JA	327	getrusage(RUSAGE_SELF, &ts->ru_end);
	328
	329	ts->usr_time += mtime_since(&ts->ru_start.ru_utime, &ts->ru_end.ru_utime);
	330	ts->sys_time += mtime_since(&ts->ru_start.ru_stime, &ts->ru_end.ru_stime);
	331	ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw);
3c39a379	332
079ad09b	333	memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end));
3c39a379 JA	334	}
	335
	336	static int calc_lat(struct io_stat is, unsigned long min, unsigned long *max,
	337	double mean, double dev)
	338	{
68704084	339	double n = is->samples;
3c39a379 JA	340
	341	if (is->samples == 0)
	342	return 0;
	343
	344	*min = is->min_val;
	345	*max = is->max_val;
	346
	347	n = (double) is->samples;
68704084	348	*mean = is->mean;
e6d276f2	349
68704084 JA	350	if (n > 1.0)
68704084 JA	351	*dev = sqrt(is->S / (n - 1.0));
ef9c5c40	352	else
68704084	353	*dev = -1.0;
ef9c5c40	354
3c39a379 JA	355	return 1;
	356	}
	357
	358	static void show_group_stats(struct group_run_stats *rs, int id)
	359	{
dbe1125e JA	360	char p1, p2, p3, p4;
	361	const char *ddir_str[] = { " READ", " WRITE" };
	362	int i;
	363
eb8bbf48	364	fprintf(f_out, "\nRun status group %d (all jobs):\n", id);
3c39a379	365
dbe1125e JA	366	for (i = 0; i <= DDIR_WRITE; i++) {
	367	if (!rs->max_run[i])
	368	continue;
	369
	370	p1 = num2str(rs->io_kb[i], 6, 1);
	371	p2 = num2str(rs->agg[i], 6, 1);
	372	p3 = num2str(rs->min_bw[i], 6, 1);
	373	p4 = num2str(rs->max_bw[i], 6, 1);
	374
	375	fprintf(f_out, "%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[0], rs->max_run[0]);
	376
	377	free(p1);
	378	free(p2);
	379	free(p3);
	380	free(p4);
	381	}
3c39a379 JA	382	}
	383
	384	static void show_disk_util(void)
	385	{
	386	struct disk_util_stat *dus;
b4a6a59a	387	struct list_head entry, next;
3c39a379 JA	388	struct disk_util *du;
	389	double util;
	390
eb8bbf48	391	fprintf(f_out, "\nDisk stats (read/write):\n");
3c39a379 JA	392
	393	list_for_each(entry, &disk_list) {
	394	du = list_entry(entry, struct disk_util, list);
	395	dus = &du->dus;
	396
	397	util = (double) 100 * du->dus.io_ticks / (double) du->msec;
	398	if (util > 100.0)
	399	util = 100.0;
	400
eb8bbf48	401	fprintf(f_out, " %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util);
3c39a379	402	}
b4a6a59a JA	403
	404	/*
	405	* now free the list
	406	*/
	407	list_for_each_safe(entry, next, &disk_list) {
	408	list_del(entry);
	409	du = list_entry(entry, struct disk_util, list);
	410	free(du->name);
	411	free(du);
	412	}
3c39a379 JA	413	}
	414
	415	static void show_ddir_status(struct thread_data td, struct group_run_stats rs,
	416	int ddir)
	417	{
3c9b60c1	418	const char *ddir_str[] = { "read ", "write" };
079ad09b	419	struct thread_stat *ts;
3c39a379 JA	420	unsigned long min, max;
	421	unsigned long long bw;
	422	double mean, dev;
dbe1125e	423	char io_p, bw_p;
3c39a379 JA	424
	425	if (!td->runtime[ddir])
	426	return;
	427
	428	bw = td->io_bytes[ddir] / td->runtime[ddir];
dbe1125e JA	429	io_p = num2str(td->io_bytes[ddir] >> 10, 6, 1);
	430	bw_p = num2str(bw, 6, 1);
	431
	432	fprintf(f_out, " %s: io=%siB, bw=%siB/s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, td->runtime[ddir]);
	433
	434	free(io_p);
	435	free(bw_p);
3c39a379	436
079ad09b JA	437	ts = &td->ts;
079ad09b JA	438	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
6104ddb6	439	fprintf(f_out, " slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev);
3c39a379	440
079ad09b	441	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
6104ddb6	442	fprintf(f_out, " clat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev);
3c39a379	443
079ad09b	444	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
3c39a379 JA	445	double p_of_agg;
	446
	447	p_of_agg = mean * 100 / (double) rs->agg[ddir];
6104ddb6	448	fprintf(f_out, " 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	449	}
	450	}
	451
	452	static void show_thread_status(struct thread_data *td,
	453	struct group_run_stats *rs)
	454	{
	455	double usr_cpu, sys_cpu;
69008999	456	unsigned long runtime;
71619dc2	457	double io_u_dist[FIO_IO_U_MAP_NR];
ec118304	458	double io_u_lat[FIO_IO_U_LAT_NR];
71619dc2	459	int i;
3c39a379	460
6d663077	461	if (!(td->io_bytes[0] + td->io_bytes[1]))
3c39a379 JA	462	return;
3c39a379 JA	463
6d663077 JA	464	if (!td->error)
	465	fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n",td->name, td->groupid, td->error, td->pid);
	466	else
	467	fprintf(f_out, "%s: (groupid=%d): err=%2d (%s): pid=%d\n",td->name, td->groupid, td->error, td->verror, td->pid);
3c39a379	468
413dd459 JA	469	if (td_read(td))
	470	show_ddir_status(td, rs, DDIR_READ);
	471	if (td_write(td))
	472	show_ddir_status(td, rs, DDIR_WRITE);
3c39a379	473
69008999 JA	474	runtime = mtime_since(&td->epoch, &td->end_time);
69008999 JA	475	if (runtime) {
1e97cce9	476	double runt = (double) runtime;
3c39a379	477
079ad09b JA	478	usr_cpu = (double) td->ts.usr_time * 100 / runt;
079ad09b JA	479	sys_cpu = (double) td->ts.sys_time * 100 / runt;
3c39a379 JA	480	} else {
	481	usr_cpu = 0;
	482	sys_cpu = 0;
	483	}
	484
079ad09b	485	fprintf(f_out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, td->ts.ctx);
71619dc2 JA	486
	487	/*
	488	* Do depth distribution calculations
	489	*/
	490	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
	491	io_u_dist[i] = (double) td->io_u_map[i] / (double) td->total_io_u;
	492	io_u_dist[i] *= 100.0;
	493	}
	494
5d458077	495	fprintf(f_out, " 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]);
61697c37	496
ec118304 JA	497	/*
	498	* Do latency distribution calculations
	499	*/
	500	for (i = 0; i < FIO_IO_U_LAT_NR; i++) {
	501	io_u_lat[i] = (double) td->io_u_lat[i] / (double) td->total_io_u;
	502	io_u_lat[i] *= 100.0;
	503	}
	504
8abdce66 JA	505	fprintf(f_out, " lat (msec): 2=%3.1f%%, 4=%3.1f%%, 10=%3.1f%%, 20=%3.1f%%, 50=%3.1f%%, 100=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]);
8abdce66 JA	506	fprintf(f_out, " lat (msec): 250=%3.1f%%, 500=%3.1f%%, 750=%3.1f%%, 1000=%3.1f%%, >=2000=%3.1f%%\n", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]);
ec118304	507
61697c37 JA	508	if (td->description)
61697c37 JA	509	fprintf(f_out, "%s\n", td->description);
3c39a379 JA	510	}
3c39a379 JA	511
c6ae0a5b JA	512	static void show_ddir_status_terse(struct thread_data *td,
	513	struct group_run_stats *rs, int ddir)
	514	{
079ad09b	515	struct thread_stat *ts = &td->ts;
c6ae0a5b JA	516	unsigned long min, max;
	517	unsigned long long bw;
	518	double mean, dev;
	519
	520	bw = 0;
	521	if (td->runtime[ddir])
	522	bw = td->io_bytes[ddir] / td->runtime[ddir];
	523
	524	fprintf(f_out, ",%llu,%llu,%lu", td->io_bytes[ddir] >> 10, bw, td->runtime[ddir]);
	525
079ad09b	526	if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
c6ae0a5b JA	527	fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev);
	528	else
	529	fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0);
	530
079ad09b	531	if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
c6ae0a5b JA	532	fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev);
	533	else
	534	fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0);
	535
079ad09b	536	if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
c6ae0a5b JA	537	double p_of_agg;
	538
	539	p_of_agg = mean * 100 / (double) rs->agg[ddir];
	540	fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", min, max, p_of_agg, mean, dev);
	541	} else
	542	fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", 0UL, 0UL, 0.0, 0.0, 0.0);
	543
	544	}
	545
	546
	547	static void show_thread_status_terse(struct thread_data *td,
	548	struct group_run_stats *rs)
	549	{
	550	double usr_cpu, sys_cpu;
	551
	552	fprintf(f_out, "%s,%d,%d",td->name, td->groupid, td->error);
	553
	554	show_ddir_status_terse(td, rs, 0);
	555	show_ddir_status_terse(td, rs, 1);
	556
	557	if (td->runtime[0] + td->runtime[1]) {
1e97cce9	558	double runt = (double) (td->runtime[0] + td->runtime[1]);
c6ae0a5b	559
079ad09b JA	560	usr_cpu = (double) td->ts.usr_time * 100 / runt;
079ad09b JA	561	sys_cpu = (double) td->ts.sys_time * 100 / runt;
c6ae0a5b JA	562	} else {
	563	usr_cpu = 0;
	564	sys_cpu = 0;
	565	}
	566
079ad09b	567	fprintf(f_out, ",%f%%,%f%%,%lu\n", usr_cpu, sys_cpu, td->ts.ctx);
c6ae0a5b JA	568	}
c6ae0a5b JA	569
3c39a379 JA	570	void show_run_stats(void)
	571	{
	572	struct group_run_stats runstats, rs;
	573	struct thread_data *td;
	574	int i;
	575
	576	runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
	577
	578	for (i = 0; i < groupid + 1; i++) {
	579	rs = &runstats[i];
	580
	581	memset(rs, 0, sizeof(*rs));
	582	rs->min_bw[0] = rs->min_run[0] = ~0UL;
	583	rs->min_bw[1] = rs->min_run[1] = ~0UL;
	584	}
	585
34572e28	586	for_each_td(td, i) {
3c39a379 JA	587	unsigned long long rbw, wbw;
3c39a379 JA	588
3c39a379 JA	589	rs = &runstats[td->groupid];
	590
	591	if (td->runtime[0] < rs->min_run[0] \|\| !rs->min_run[0])
	592	rs->min_run[0] = td->runtime[0];
	593	if (td->runtime[0] > rs->max_run[0])
	594	rs->max_run[0] = td->runtime[0];
	595	if (td->runtime[1] < rs->min_run[1] \|\| !rs->min_run[1])
	596	rs->min_run[1] = td->runtime[1];
	597	if (td->runtime[1] > rs->max_run[1])
	598	rs->max_run[1] = td->runtime[1];
	599
	600	rbw = wbw = 0;
	601	if (td->runtime[0])
	602	rbw = td->io_bytes[0] / (unsigned long long) td->runtime[0];
	603	if (td->runtime[1])
	604	wbw = td->io_bytes[1] / (unsigned long long) td->runtime[1];
	605
	606	if (rbw < rs->min_bw[0])
	607	rs->min_bw[0] = rbw;
	608	if (wbw < rs->min_bw[1])
	609	rs->min_bw[1] = wbw;
	610	if (rbw > rs->max_bw[0])
	611	rs->max_bw[0] = rbw;
	612	if (wbw > rs->max_bw[1])
	613	rs->max_bw[1] = wbw;
	614
	615	rs->io_kb[0] += td->io_bytes[0] >> 10;
	616	rs->io_kb[1] += td->io_bytes[1] >> 10;
	617	}
	618
	619	for (i = 0; i < groupid + 1; i++) {
	620	rs = &runstats[i];
	621
	622	if (rs->max_run[0])
	623	rs->agg[0] = (rs->io_kb[0]*1024) / rs->max_run[0];
	624	if (rs->max_run[1])
	625	rs->agg[1] = (rs->io_kb[1]*1024) / rs->max_run[1];
	626	}
	627
	628	/*
	629	* don't overwrite last signal output
	630	*/
c6ae0a5b JA	631	if (!terse_output)
c6ae0a5b JA	632	printf("\n");
3c39a379	633
34572e28	634	for_each_td(td, i) {
3c39a379 JA	635	rs = &runstats[td->groupid];
3c39a379 JA	636
c6ae0a5b JA	637	if (terse_output)
	638	show_thread_status_terse(td, rs);
	639	else
	640	show_thread_status(td, rs);
3c39a379 JA	641	}
3c39a379 JA	642
c6ae0a5b JA	643	if (!terse_output) {
	644	for (i = 0; i < groupid + 1; i++)
	645	show_group_stats(&runstats[i], i);
3c39a379	646
c6ae0a5b JA	647	show_disk_util();
c6ae0a5b JA	648	}
eecf272f JA	649
eecf272f JA	650	free(runstats);
3c39a379 JA	651	}
3c39a379 JA	652
68704084	653	static inline void add_stat_sample(struct io_stat *is, unsigned long data)
3c39a379	654	{
68704084 JA	655	double val = data;
	656	double delta, n;
	657
	658	if (data > is->max_val)
	659	is->max_val = data;
	660	if (data < is->min_val)
	661	is->min_val = data;
	662
	663	delta = val - is->mean;
	664	n = is->samples + 1.0;
	665	is->mean += delta / n;
	666	is->S += delta * (val - is->mean);
3c39a379	667
3c39a379 JA	668	is->samples++;
	669	}
	670
bb3884d8 JA	671	static void __add_log_sample(struct io_log *iolog, unsigned long val,
bb3884d8 JA	672	enum fio_ddir ddir, unsigned long time)
3c39a379 JA	673	{
	674	if (iolog->nr_samples == iolog->max_samples) {
	675	int new_size = sizeof(struct io_sample) * iolog->max_samples*2;
	676
	677	iolog->log = realloc(iolog->log, new_size);
	678	iolog->max_samples <<= 1;
	679	}
	680
	681	iolog->log[iolog->nr_samples].val = val;
bb3884d8	682	iolog->log[iolog->nr_samples].time = time;
3c39a379 JA	683	iolog->log[iolog->nr_samples].ddir = ddir;
	684	iolog->nr_samples++;
	685	}
	686
bb3884d8 JA	687	static void add_log_sample(struct thread_data td, struct io_log iolog,
	688	unsigned long val, enum fio_ddir ddir)
	689	{
	690	__add_log_sample(iolog, val, ddir, mtime_since_now(&td->epoch));
	691	}
	692
	693	void add_agg_sample(unsigned long val, enum fio_ddir ddir)
	694	{
	695	struct io_log *iolog = agg_io_log[ddir];
	696
	697	__add_log_sample(iolog, val, ddir, mtime_since_genesis());
	698	}
	699
1e97cce9 JA	700	void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
1e97cce9 JA	701	unsigned long msec)
3c39a379	702	{
079ad09b JA	703	struct thread_stat *ts = &td->ts;
	704
	705	add_stat_sample(&ts->clat_stat[ddir], msec);
3c39a379	706
079ad09b JA	707	if (ts->clat_log)
079ad09b JA	708	add_log_sample(td, ts->clat_log, msec, ddir);
3c39a379 JA	709	}
3c39a379 JA	710
1e97cce9 JA	711	void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
1e97cce9 JA	712	unsigned long msec)
3c39a379	713	{
079ad09b JA	714	struct thread_stat *ts = &td->ts;
	715
	716	add_stat_sample(&ts->slat_stat[ddir], msec);
3c39a379	717
079ad09b JA	718	if (ts->slat_log)
079ad09b JA	719	add_log_sample(td, ts->slat_log, msec, ddir);
3c39a379 JA	720	}
3c39a379 JA	721
1e97cce9 JA	722	void add_bw_sample(struct thread_data *td, enum fio_ddir ddir,
1e97cce9 JA	723	struct timeval *t)
3c39a379	724	{
079ad09b JA	725	struct thread_stat *ts = &td->ts;
079ad09b JA	726	unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t);
3c39a379 JA	727	unsigned long rate;
	728
	729	if (spent < td->bw_avg_time)
	730	return;
	731
079ad09b JA	732	rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent;
079ad09b JA	733	add_stat_sample(&ts->bw_stat[ddir], rate);
3c39a379	734
079ad09b JA	735	if (ts->bw_log)
079ad09b JA	736	add_log_sample(td, ts->bw_log, rate, ddir);
3c39a379	737
079ad09b JA	738	fio_gettime(&ts->stat_sample_time[ddir], NULL);
079ad09b JA	739	ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
3c39a379	740	}