File: eta.c

package info (click to toggle)
fio 1.38-1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 1,108 kB
  • ctags: 2,240
  • sloc: ansic: 17,668; makefile: 98; sh: 55
file content (388 lines) | stat: -rw-r--r-- 9,139 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
/*
 * Status and ETA code
 */
#include <unistd.h>
#include <fcntl.h>
#include <string.h>

#include "fio.h"

static char run_str[MAX_JOBS + 1];

/*
 * Sets the status of the 'td' in the printed status map.
 */
static void check_str_update(struct thread_data *td)
{
	char c = run_str[td->thread_number - 1];

	switch (td->runstate) {
	case TD_REAPED:
		c = '_';
		break;
	case TD_EXITED:
		c = 'E';
		break;
	case TD_RAMP:
		c = '/';
		break;
	case TD_RUNNING:
		if (td_rw(td)) {
			if (td_random(td))
				c = 'm';
			else
				c = 'M';
		} else if (td_read(td)) {
			if (td_random(td))
				c = 'r';
			else
				c = 'R';
		} else {
			if (td_random(td))
				c = 'w';
			else
				c = 'W';
		}
		break;
	case TD_PRE_READING:
		c = 'p';
		break;
	case TD_VERIFYING:
		c = 'V';
		break;
	case TD_FSYNCING:
		c = 'F';
		break;
	case TD_CREATED:
		c = 'C';
		break;
	case TD_INITIALIZED:
		c = 'I';
		break;
	case TD_NOT_CREATED:
		c = 'P';
		break;
	default:
		log_err("state %d\n", td->runstate);
	}

	run_str[td->thread_number - 1] = c;
}

/*
 * Convert seconds to a printable string.
 */
static void eta_to_str(char *str, unsigned long eta_sec)
{
	unsigned int d, h, m, s;
	int disp_hour = 0;

	s = eta_sec % 60;
	eta_sec /= 60;
	m = eta_sec % 60;
	eta_sec /= 60;
	h = eta_sec % 24;
	eta_sec /= 24;
	d = eta_sec;

	if (d) {
		disp_hour = 1;
		str += sprintf(str, "%02ud:", d);
	}

	if (h || disp_hour)
		str += sprintf(str, "%02uh:", h);

	str += sprintf(str, "%02um:", m);
	str += sprintf(str, "%02us", s);
}

/*
 * Best effort calculation of the estimated pending runtime of a job.
 */
static int thread_eta(struct thread_data *td)
{
	unsigned long long bytes_total, bytes_done;
	unsigned long eta_sec = 0;
	unsigned long elapsed;

	elapsed = (mtime_since_now(&td->epoch) + 999) / 1000;

	bytes_total = td->total_io_size;

	/*
	 * if writing, bytes_total will be twice the size. If mixing,
	 * assume a 50/50 split and thus bytes_total will be 50% larger.
	 */
	if (td->o.do_verify && td->o.verify && td_write(td)) {
		if (td_rw(td))
			bytes_total = bytes_total * 3 / 2;
		else
			bytes_total <<= 1;
	}

	if (td->o.zone_size && td->o.zone_skip)
		bytes_total /= (td->o.zone_skip / td->o.zone_size);

	if (td->o.fill_device && td->o.size  == -1ULL)
		return 0;

	if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) {
		double perc, perc_t;

		bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE];
		perc = (double) bytes_done / (double) bytes_total;
		if (perc > 1.0)
			perc = 1.0;

		if (td->o.time_based) {
			perc_t = (double) elapsed / (double) td->o.timeout;
			if (perc_t < perc)
				perc = perc_t;
		}

		eta_sec = (unsigned long) (elapsed * (1.0 / perc)) - elapsed;

		if (td->o.timeout &&
		    eta_sec > (td->o.timeout + done_secs - elapsed))
			eta_sec = td->o.timeout + done_secs - elapsed;
	} else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED
			|| td->runstate == TD_INITIALIZED
			|| td->runstate == TD_RAMP
			|| td->runstate == TD_PRE_READING) {
		int t_eta = 0, r_eta = 0;

		/*
		 * We can only guess - assume it'll run the full timeout
		 * if given, otherwise assume it'll run at the specified rate.
		 */
		if (td->o.timeout) {
			t_eta = td->o.timeout + td->o.start_delay;

			if (in_ramp_time(td)) {
				unsigned long ramp_left;

				ramp_left = mtime_since_now(&td->start);
				ramp_left = (ramp_left + 999) / 1000;
				if (ramp_left <= t_eta)
					t_eta -= ramp_left;
			}
		}
		if (td->o.rate[0] || td->o.rate[1]) {
			r_eta = (bytes_total / 1024) /
					(td->o.rate[0] + td->o.rate[1]);
			r_eta += td->o.start_delay;
		}

		if (r_eta && t_eta)
			eta_sec = min(r_eta, t_eta);
		else if (r_eta)
			eta_sec = r_eta;
		else if (t_eta)
			eta_sec = t_eta;
		else
			eta_sec = 0;
	} else {
		/*
		 * thread is already done or waiting for fsync
		 */
		eta_sec = 0;
	}

	return eta_sec;
}

static void calc_rate(unsigned long mtime, unsigned long long *io_bytes,
		      unsigned long long *prev_io_bytes, unsigned int *rate)
{
	rate[0] = (io_bytes[0] - prev_io_bytes[0]) / mtime;
	rate[1] = (io_bytes[1] - prev_io_bytes[1]) / mtime;
	prev_io_bytes[0] = io_bytes[0];
	prev_io_bytes[1] = io_bytes[1];
}

static void calc_iops(unsigned long mtime, unsigned long long *io_iops,
		      unsigned long long *prev_io_iops, unsigned int *iops)
{
	iops[0] = ((io_iops[0] - prev_io_iops[0]) * 1000) / mtime;
	iops[1] = ((io_iops[1] - prev_io_iops[1]) * 1000) / mtime;
	prev_io_iops[0] = io_iops[0];
	prev_io_iops[1] = io_iops[1];
}

/*
 * Print status of the jobs we know about. This includes rate estimates,
 * ETA, thread state, etc.
 */
void print_thread_status(void)
{
	unsigned long elapsed = (mtime_since_genesis() + 999) / 1000;
	int i, nr_ramp, nr_running, nr_pending, t_rate, m_rate;
	int t_iops, m_iops, files_open;
	struct thread_data *td;
	char eta_str[128];
	double perc = 0.0;
	unsigned long long io_bytes[2], io_iops[2];
	unsigned long rate_time, disp_time, bw_avg_time, *eta_secs, eta_sec;
	struct timeval now;

	static unsigned long long rate_io_bytes[2];
	static unsigned long long disp_io_bytes[2];
	static unsigned long long disp_io_iops[2];
	static struct timeval rate_prev_time, disp_prev_time;
	static unsigned int rate[2], iops[2];
	static int linelen_last;
	static int eta_good;
	int i2p = 0;

	if (temp_stall_ts || terse_output || eta_print == FIO_ETA_NEVER)
		return;

	if (!isatty(STDOUT_FILENO) && (eta_print != FIO_ETA_ALWAYS))
		return;

	if (!rate_io_bytes[0] && !rate_io_bytes[1])
		fill_start_time(&rate_prev_time);
	if (!disp_io_bytes[0] && !disp_io_bytes[1])
		fill_start_time(&disp_prev_time);

	eta_secs = malloc(thread_number * sizeof(unsigned long));
	memset(eta_secs, 0, thread_number * sizeof(unsigned long));

	io_bytes[0] = io_bytes[1] = 0;
	io_iops[0] = io_iops[1] = 0;
	nr_pending = nr_running = t_rate = m_rate = t_iops = m_iops = 0;
	nr_ramp = 0;
	bw_avg_time = ULONG_MAX;
	files_open = 0;
	for_each_td(td, i) {
		if (td->o.bw_avg_time < bw_avg_time)
			bw_avg_time = td->o.bw_avg_time;
		if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING
		    || td->runstate == TD_FSYNCING
		    || td->runstate == TD_PRE_READING) {
			nr_running++;
			t_rate += td->o.rate[0] + td->o.rate[1];
			m_rate += td->o.ratemin[0] + td->o.ratemin[1];
			t_iops += td->o.rate_iops[0] + td->o.rate_iops[1];
			m_iops += td->o.rate_iops_min[0] +
					td->o.rate_iops_min[1];
			files_open += td->nr_open_files;
		} else if (td->runstate == TD_RAMP) {
			nr_running++;
			nr_ramp++;
		} else if (td->runstate < TD_RUNNING)
			nr_pending++;

		if (elapsed >= 3)
			eta_secs[i] = thread_eta(td);
		else
			eta_secs[i] = INT_MAX;

		check_str_update(td);

		if (td->runstate > TD_RAMP) {
			io_bytes[0] += td->io_bytes[0];
			io_bytes[1] += td->io_bytes[1];
			io_iops[0] += td->io_blocks[0];
			io_iops[1] += td->io_blocks[1];
		}
	}

	if (exitall_on_terminate)
		eta_sec = INT_MAX;
	else
		eta_sec = 0;

	for_each_td(td, i) {
		if (!i2p && is_power_of_2(td->o.kb_base))
			i2p = 1;
		if (exitall_on_terminate) {
			if (eta_secs[i] < eta_sec)
				eta_sec = eta_secs[i];
		} else {
			if (eta_secs[i] > eta_sec)
				eta_sec = eta_secs[i];
		}
	}

	free(eta_secs);

	if (eta_sec != INT_MAX && elapsed) {
		perc = (double) elapsed / (double) (elapsed + eta_sec);
		eta_to_str(eta_str, eta_sec);
	}

	fio_gettime(&now, NULL);
	rate_time = mtime_since(&rate_prev_time, &now);

	if (write_bw_log && rate_time > bw_avg_time && !in_ramp_time(td)) {
		calc_rate(rate_time, io_bytes, rate_io_bytes, rate);
		memcpy(&rate_prev_time, &now, sizeof(now));
		add_agg_sample(rate[DDIR_READ], DDIR_READ, 0);
		add_agg_sample(rate[DDIR_WRITE], DDIR_WRITE, 0);
	}

	disp_time = mtime_since(&disp_prev_time, &now);
	if (disp_time < 1000)
		return;

	calc_rate(disp_time, io_bytes, disp_io_bytes, rate);
	calc_iops(disp_time, io_iops, disp_io_iops, iops);

	memcpy(&disp_prev_time, &now, sizeof(now));

	if (!nr_running && !nr_pending)
		return;

	printf("Jobs: %d (f=%d)", nr_running, files_open);
	if (m_rate || t_rate) {
		char *tr, *mr;

		mr = num2str(m_rate, 4, 0, i2p);
		tr = num2str(t_rate, 4, 0, i2p);
		printf(", CR=%s/%s KB/s", tr, mr);
		free(tr);
		free(mr);
	} else if (m_iops || t_iops)
		printf(", CR=%d/%d IOPS", t_iops, m_iops);
	if (eta_sec != INT_MAX && nr_running) {
		char perc_str[32];
		char *iops_str[2];
		char *rate_str[2];
		int l;

		if ((!eta_sec && !eta_good) || nr_ramp == nr_running)
			strcpy(perc_str, "-.-% done");
		else {
			eta_good = 1;
			perc *= 100.0;
			sprintf(perc_str, "%3.1f%% done", perc);
		}

		rate_str[0] = num2str(rate[0], 5, 10, i2p);
		rate_str[1] = num2str(rate[1], 5, 10, i2p);

		iops_str[0] = num2str(iops[0], 4, 1, 0);
		iops_str[1] = num2str(iops[1], 4, 1, 0);

		l = printf(": [%s] [%s] [%s/%s /s] [%s/%s iops] [eta %s]",
				 run_str, perc_str, rate_str[0], rate_str[1],
				 iops_str[0], iops_str[1], eta_str);
		if (l >= 0 && l < linelen_last)
			printf("%*s", linelen_last - l, "");
		linelen_last = l;

		free(rate_str[0]);
		free(rate_str[1]);
		free(iops_str[0]);
		free(iops_str[1]);
	}
	printf("\r");
	fflush(stdout);
}

void print_status_init(int thread_number)
{
	run_str[thread_number] = 'P';
}