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