[PATCH] Make the libaio fsync fallback really work
[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         int disp_hour = 0;
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) {
86                 disp_hour = 1;
87                 str += sprintf(str, "%02ud:", d);
88         }
89
90         if (h || disp_hour)
91                 str += sprintf(str, "%02uh:", h);
92
93         str += sprintf(str, "%02um:", m);
94         str += sprintf(str, "%02us", s);
95 }
96
97 /*
98  * Best effort calculation of the estimated pending runtime of a job.
99  */
100 static int thread_eta(struct thread_data *td, unsigned long elapsed)
101 {
102         unsigned long long bytes_total, bytes_done;
103         unsigned long eta_sec = 0;
104
105         bytes_total = td->total_io_size;
106
107         /*
108          * if writing, bytes_total will be twice the size. If mixing,
109          * assume a 50/50 split and thus bytes_total will be 50% larger.
110          */
111         if (td->verify) {
112                 if (td_rw(td))
113                         bytes_total = bytes_total * 3 / 2;
114                 else
115                         bytes_total <<= 1;
116         }
117
118         if (td->zone_size && td->zone_skip)
119                 bytes_total /= (td->zone_skip / td->zone_size);
120
121         if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) {
122                 double perc;
123
124                 bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE];
125                 perc = (double) bytes_done / (double) bytes_total;
126                 if (perc > 1.0)
127                         perc = 1.0;
128
129                 eta_sec = (unsigned long) (elapsed * (1.0 / perc)) - elapsed;
130
131                 if (td->timeout && eta_sec > (td->timeout - elapsed))
132                         eta_sec = td->timeout - elapsed;
133         } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED
134                         || td->runstate == TD_INITIALIZED) {
135                 int t_eta = 0, r_eta = 0;
136
137                 /*
138                  * We can only guess - assume it'll run the full timeout
139                  * if given, otherwise assume it'll run at the specified rate.
140                  */
141                 if (td->timeout)
142                         t_eta = td->timeout + td->start_delay - elapsed;
143                 if (td->rate) {
144                         r_eta = (bytes_total / 1024) / td->rate;
145                         r_eta += td->start_delay - elapsed;
146                 }
147
148                 if (r_eta && t_eta)
149                         eta_sec = min(r_eta, t_eta);
150                 else if (r_eta)
151                         eta_sec = r_eta;
152                 else if (t_eta)
153                         eta_sec = t_eta;
154                 else
155                         eta_sec = 0;
156         } else {
157                 /*
158                  * thread is already done or waiting for fsync
159                  */
160                 eta_sec = 0;
161         }
162
163         return eta_sec;
164 }
165
166 /*
167  * Print status of the jobs we know about. This includes rate estimates,
168  * ETA, thread state, etc.
169  */
170 void print_thread_status(void)
171 {
172         unsigned long elapsed = mtime_since_genesis() / 1000;
173         int i, nr_running, nr_pending, t_rate, m_rate, *eta_secs, eta_sec;
174         struct thread_data *td;
175         char eta_str[32];
176         double perc = 0.0;
177
178         static unsigned long long prev_io_bytes[2];
179         static struct timeval prev_time;
180         static unsigned int r_rate, w_rate;
181         unsigned long long io_bytes[2];
182         unsigned long mtime, bw_avg_time;
183
184         if (temp_stall_ts || terse_output)
185                 return;
186
187         if (!prev_io_bytes[0] && !prev_io_bytes[1])
188                 fill_start_time(&prev_time);
189
190         eta_secs = malloc(thread_number * sizeof(int));
191         memset(eta_secs, 0, thread_number * sizeof(int));
192
193         io_bytes[0] = io_bytes[1] = 0;
194         nr_pending = nr_running = t_rate = m_rate = 0;
195         bw_avg_time = ULONG_MAX;
196         for_each_td(td, i) {
197                 if (td->bw_avg_time < bw_avg_time)
198                         bw_avg_time = td->bw_avg_time;
199                 if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING||
200                     td->runstate == TD_FSYNCING) {
201                         nr_running++;
202                         t_rate += td->rate;
203                         m_rate += td->ratemin;
204                 } else if (td->runstate < TD_RUNNING)
205                         nr_pending++;
206
207                 if (elapsed >= 3)
208                         eta_secs[i] = thread_eta(td, elapsed);
209                 else
210                         eta_secs[i] = INT_MAX;
211
212                 check_str_update(td);
213                 io_bytes[0] += td->io_bytes[0];
214                 io_bytes[1] += td->io_bytes[1];
215         }
216
217         if (exitall_on_terminate)
218                 eta_sec = INT_MAX;
219         else
220                 eta_sec = 0;
221
222         for_each_td(td, i) {
223                 if (exitall_on_terminate) {
224                         if (eta_secs[i] < eta_sec)
225                                 eta_sec = eta_secs[i];
226                 } else {
227                         if (eta_secs[i] > eta_sec)
228                                 eta_sec = eta_secs[i];
229                 }
230         }
231
232         free(eta_secs);
233
234         if (eta_sec != INT_MAX && elapsed) {
235                 perc = (double) elapsed / (double) (elapsed + eta_sec);
236                 eta_to_str(eta_str, eta_sec);
237         }
238
239         mtime = mtime_since_now(&prev_time);
240         if (mtime > bw_avg_time) {
241                 r_rate = (io_bytes[0] - prev_io_bytes[0]) / mtime;
242                 w_rate = (io_bytes[1] - prev_io_bytes[1]) / mtime;
243                 fio_gettime(&prev_time, NULL);
244                 if (write_bw_log) {
245                         add_agg_sample(r_rate, DDIR_READ);
246                         add_agg_sample(w_rate, DDIR_WRITE);
247                 }
248                 memcpy(prev_io_bytes, io_bytes, sizeof(io_bytes));
249         }
250
251         if (!nr_running && !nr_pending)
252                 return;
253
254         printf("Threads: %d", nr_running);
255         if (m_rate || t_rate)
256                 printf(", CR=%d/%d KiB/s", t_rate, m_rate);
257         if (eta_sec != INT_MAX && nr_running) {
258                 perc *= 100.0;
259                 printf(": [%s] [%3.1f%% done] [%6u/%6u kb/s] [eta %s]", run_str, perc, r_rate, w_rate, eta_str);
260         }
261         printf("\r");
262         fflush(stdout);
263 }
264
265 void print_status_init(int thread_number)
266 {
267         run_str[thread_number] = 'P';
268 }