libaio engine: print warning for depth > 1 and buffered IO
[fio.git] / eta.c
1 /*
2  * Status and ETA code
3  */
4 #include <unistd.h>
5 #include <fcntl.h>
6 #include <string.h>
7
8 #include "fio.h"
9
10 static char run_str[MAX_JOBS + 1];
11
12 /*
13  * Sets the status of the 'td' in the printed status map.
14  */
15 static void check_str_update(struct thread_data *td)
16 {
17         char c = run_str[td->thread_number - 1];
18
19         switch (td->runstate) {
20                 case TD_REAPED:
21                         c = '_';
22                         break;
23                 case TD_EXITED:
24                         c = 'E';
25                         break;
26                 case TD_RUNNING:
27                         if (td_rw(td)) {
28                                 if (td_random(td))
29                                         c = 'm';
30                                 else
31                                         c = 'M';
32                         } else if (td_read(td)) {
33                                 if (td_random(td))
34                                         c = 'r';
35                                 else
36                                         c = 'R';
37                         } else {
38                                 if (td_random(td))
39                                         c = 'w';
40                                 else
41                                         c = 'W';
42                         }
43                         break;
44                 case TD_VERIFYING:
45                         c = 'V';
46                         break;
47                 case TD_FSYNCING:
48                         c = 'F';
49                         break;
50                 case TD_CREATED:
51                         c = 'C';
52                         break;
53                 case TD_INITIALIZED:
54                         c = 'I';
55                         break;
56                 case TD_NOT_CREATED:
57                         c = 'P';
58                         break;
59                 default:
60                         log_err("state %d\n", td->runstate);
61         }
62
63         run_str[td->thread_number - 1] = c;
64 }
65
66 /*
67  * Convert seconds to a printable string.
68  */
69 static void eta_to_str(char *str, int eta_sec)
70 {
71         unsigned int d, h, m, s;
72         int disp_hour = 0;
73
74         d = h = m = s = 0;
75
76         s = eta_sec % 60;
77         eta_sec /= 60;
78         m = eta_sec % 60;
79         eta_sec /= 60;
80         h = eta_sec % 24;
81         eta_sec /= 24;
82         d = eta_sec;
83
84         if (d) {
85                 disp_hour = 1;
86                 str += sprintf(str, "%02ud:", d);
87         }
88
89         if (h || disp_hour)
90                 str += sprintf(str, "%02uh:", h);
91
92         str += sprintf(str, "%02um:", m);
93         str += sprintf(str, "%02us", s);
94 }
95
96 /*
97  * Best effort calculation of the estimated pending runtime of a job.
98  */
99 static int thread_eta(struct thread_data *td, unsigned long elapsed)
100 {
101         unsigned long long bytes_total, bytes_done;
102         unsigned long eta_sec = 0;
103
104         bytes_total = td->total_io_size;
105
106         /*
107          * if writing, bytes_total will be twice the size. If mixing,
108          * assume a 50/50 split and thus bytes_total will be 50% larger.
109          */
110         if (td->o.verify) {
111                 if (td_rw(td))
112                         bytes_total = bytes_total * 3 / 2;
113                 else
114                         bytes_total <<= 1;
115         }
116
117         if (td->o.zone_size && td->o.zone_skip)
118                 bytes_total /= (td->o.zone_skip / td->o.zone_size);
119
120         if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) {
121                 double perc, perc_t;
122
123                 bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE];
124                 perc = (double) bytes_done / (double) bytes_total;
125                 if (perc > 1.0)
126                         perc = 1.0;
127
128                 if (td->o.time_based) {
129                         perc_t = (double) elapsed / (double) td->o.timeout;
130                         if (perc_t < perc)
131                                 perc = perc_t;
132                 }
133
134                 eta_sec = (unsigned long) (elapsed * (1.0 / perc)) - elapsed;
135
136                 if (td->o.timeout && eta_sec > (td->o.timeout - elapsed))
137                         eta_sec = td->o.timeout - elapsed;
138         } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED
139                         || td->runstate == TD_INITIALIZED) {
140                 int t_eta = 0, r_eta = 0;
141
142                 /*
143                  * We can only guess - assume it'll run the full timeout
144                  * if given, otherwise assume it'll run at the specified rate.
145                  */
146                 if (td->o.timeout)
147                         t_eta = td->o.timeout + td->o.start_delay - elapsed;
148                 if (td->o.rate) {
149                         r_eta = (bytes_total / 1024) / td->o.rate;
150                         r_eta += td->o.start_delay - elapsed;
151                 }
152
153                 if (r_eta && t_eta)
154                         eta_sec = min(r_eta, t_eta);
155                 else if (r_eta)
156                         eta_sec = r_eta;
157                 else if (t_eta)
158                         eta_sec = t_eta;
159                 else
160                         eta_sec = 0;
161         } else {
162                 /*
163                  * thread is already done or waiting for fsync
164                  */
165                 eta_sec = 0;
166         }
167
168         return eta_sec;
169 }
170
171 static void calc_rate(unsigned long mtime, unsigned long long *io_bytes,
172                       unsigned long long *prev_io_bytes, unsigned int *rate)
173 {
174         rate[0] = (io_bytes[0] - prev_io_bytes[0]) / mtime;
175         rate[1] = (io_bytes[1] - prev_io_bytes[1]) / mtime;
176         prev_io_bytes[0] = io_bytes[0];
177         prev_io_bytes[1] = io_bytes[1];
178 }
179         
180 /*
181  * Print status of the jobs we know about. This includes rate estimates,
182  * ETA, thread state, etc.
183  */
184 void print_thread_status(void)
185 {
186         unsigned long elapsed = mtime_since_genesis() / 1000;
187         int i, nr_running, nr_pending, t_rate, m_rate, *eta_secs, eta_sec;
188         int t_iops, m_iops, files_open;
189         struct thread_data *td;
190         char eta_str[128];
191         double perc = 0.0;
192         unsigned long long io_bytes[2];
193         unsigned long rate_time, disp_time, bw_avg_time;
194         struct timeval now;
195
196         static unsigned long long rate_io_bytes[2];
197         static unsigned long long disp_io_bytes[2];
198         static struct timeval rate_prev_time, disp_prev_time;
199         static unsigned int rate[2];
200
201         if (temp_stall_ts || terse_output)
202                 return;
203
204         if (!rate_io_bytes[0] && !rate_io_bytes[1])
205                 fill_start_time(&rate_prev_time);
206         if (!disp_io_bytes[0] && !disp_io_bytes[1])
207                 fill_start_time(&disp_prev_time);
208
209         eta_secs = malloc(thread_number * sizeof(int));
210         memset(eta_secs, 0, thread_number * sizeof(int));
211
212         io_bytes[0] = io_bytes[1] = 0;
213         nr_pending = nr_running = t_rate = m_rate = t_iops = m_iops = 0;
214         bw_avg_time = ULONG_MAX;
215         files_open = 0;
216         for_each_td(td, i) {
217                 if (td->o.bw_avg_time < bw_avg_time)
218                         bw_avg_time = td->o.bw_avg_time;
219                 if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING
220                     || td->runstate == TD_FSYNCING) {
221                         nr_running++;
222                         t_rate += td->o.rate;
223                         m_rate += td->o.ratemin;
224                         t_iops += td->o.rate_iops;
225                         m_iops += td->o.rate_iops_min;
226                         files_open += td->nr_open_files;
227                 } else if (td->runstate < TD_RUNNING)
228                         nr_pending++;
229
230                 if (elapsed >= 3)
231                         eta_secs[i] = thread_eta(td, elapsed);
232                 else
233                         eta_secs[i] = INT_MAX;
234
235                 check_str_update(td);
236                 io_bytes[0] += td->io_bytes[0];
237                 io_bytes[1] += td->io_bytes[1];
238         }
239
240         if (exitall_on_terminate)
241                 eta_sec = INT_MAX;
242         else
243                 eta_sec = 0;
244
245         for_each_td(td, i) {
246                 if (exitall_on_terminate) {
247                         if (eta_secs[i] < eta_sec)
248                                 eta_sec = eta_secs[i];
249                 } else {
250                         if (eta_secs[i] > eta_sec)
251                                 eta_sec = eta_secs[i];
252                 }
253         }
254
255         free(eta_secs);
256
257         if (eta_sec != INT_MAX && elapsed) {
258                 perc = (double) elapsed / (double) (elapsed + eta_sec);
259                 eta_to_str(eta_str, eta_sec);
260         }
261
262         fio_gettime(&now, NULL);
263         rate_time = mtime_since(&rate_prev_time, &now);
264
265         if (write_bw_log && rate_time> bw_avg_time) {
266                 calc_rate(rate_time, io_bytes, rate_io_bytes, rate);
267                 memcpy(&rate_prev_time, &now, sizeof(now));
268                 add_agg_sample(rate[DDIR_READ], DDIR_READ);
269                 add_agg_sample(rate[DDIR_WRITE], DDIR_WRITE);
270         }
271
272         disp_time = mtime_since(&disp_prev_time, &now);
273         if (disp_time < 1000)
274                 return;
275
276         calc_rate(disp_time, io_bytes, disp_io_bytes, rate);
277         memcpy(&disp_prev_time, &now, sizeof(now));
278
279         if (!nr_running && !nr_pending)
280                 return;
281
282         printf("Jobs: %d (f=%d)", nr_running, files_open);
283         if (m_rate || t_rate)
284                 printf(", CR=%d/%d KiB/s", t_rate, m_rate);
285         else if (m_iops || t_iops)
286                 printf(", CR=%d/%d IOPS", t_iops, m_iops);
287         if (eta_sec != INT_MAX && nr_running) {
288                 perc *= 100.0;
289                 printf(": [%s] [%3.1f%% done] [%6u/%6u kb/s] [eta %s]", run_str, perc, rate[0], rate[1], eta_str);
290         }
291         printf("\r");
292         fflush(stdout);
293 }
294
295 void print_status_init(int thread_number)
296 {
297         run_str[thread_number] = 'P';
298 }