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 }