sim/ppc/mon.c

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, see <http://www.gnu.org/licenses/>.
  17
  18     */
  19
  20
  21 #ifndef _MON_C_
  22 #define _MON_C_
  23
  24 #include "basics.h"
  25 #include "cpu.h"
  26 #include "mon.h"
  27 #include <stdio.h>
  28
  29 #include <string.h>
  30 #ifdef HAVE_UNISTD_H
  31 #include <unistd.h>
  32 #endif
  33 #include <stdlib.h>
  34 #ifdef HAVE_SYS_TYPES_H
  35 #include <sys/types.h>
  36 #endif
  37 #include <time.h>
  38 #ifdef HAVE_SYS_TIMES_H
  39 #include <sys/times.h>
  40 #endif
  41
  42 #ifdef HAVE_SYS_TIME_H
  43 #include <sys/time.h>
  44 #endif
  45
  46 #ifdef HAVE_SYS_RESOURCE_H
  47 #include <sys/resource.h>
  48 int getrusage();
  49 #endif
  50
  51 #define MAX_BYTE_READWRITE 9
  52 #define MAX_SHIFT_READWRITE 3
  53
  54 struct _cpu_mon {
  55   count_type issue_count[nr_itable_entries];
  56   count_type read_count;
  57   count_type read_byte_count[MAX_BYTE_READWRITE];
  58   count_type write_count;
  59   count_type write_byte_count[MAX_BYTE_READWRITE];
  60   count_type unaligned_read_count;
  61   count_type unaligned_write_count;
  62   count_type event_count[nr_mon_events];
  63 };
  64
  65 struct _mon {
  66   int nr_cpus;
  67   cpu_mon cpu_monitor[MAX_NR_PROCESSORS];
  68 };
  69
  70
  71 INLINE_MON\
  72 (mon *)
  73 mon_create(void)
  74 {
  75   mon *monitor = ZALLOC(mon);
  76   return monitor;
  77 }
  78
  79
  80 INLINE_MON\
  81 (cpu_mon *)
  82 mon_cpu(mon *monitor,
  83         int cpu_nr)
  84 {
  85   if (cpu_nr < 0 || cpu_nr >= MAX_NR_PROCESSORS)
  86     error("mon_cpu() - invalid cpu number\n");
  87   return &monitor->cpu_monitor[cpu_nr];
  88 }
  89
  90
  91 INLINE_MON\
  92 (void)
  93 mon_init(mon *monitor,
  94          int nr_cpus)
  95 {
  96   memset(monitor, 0, sizeof(*monitor));
  97   monitor->nr_cpus = nr_cpus;
  98 }
  99
 100
 101 INLINE_MON\
 102 (void)
 103 mon_issue(itable_index index,
 104           cpu *processor,
 105           unsigned_word cia)
 106 {
 107   cpu_mon *monitor = cpu_monitor(processor);
 108   ASSERT(index <= nr_itable_entries);
 109   monitor->issue_count[index] += 1;
 110 }
 111
 112
 113 INLINE_MON\
 114 (void)
 115 mon_read(unsigned_word ea,
 116          unsigned_word ra,
 117          unsigned nr_bytes,
 118          cpu *processor,
 119          unsigned_word cia)
 120 {
 121   cpu_mon *monitor = cpu_monitor(processor);
 122   monitor->read_count += 1;
 123   monitor->read_byte_count[nr_bytes] += 1;
 124   if ((nr_bytes - 1) & ea)
 125     monitor->unaligned_read_count += 1;
 126 }
 127
 128
 129 INLINE_MON\
 130 (void)
 131 mon_write(unsigned_word ea,
 132           unsigned_word ra,
 133           unsigned nr_bytes,
 134           cpu *processor,
 135           unsigned_word cia)
 136 {
 137   cpu_mon *monitor = cpu_monitor(processor);
 138   monitor->write_count += 1;
 139   monitor->write_byte_count[nr_bytes] += 1;
 140   if ((nr_bytes - 1) & ea)
 141     monitor->unaligned_write_count += 1;
 142 }
 143
 144 INLINE_MON\
 145 (void)
 146 mon_event(mon_events event,
 147           cpu *processor,
 148           unsigned_word cia)
 149 {
 150   cpu_mon *monitor = cpu_monitor(processor);
 151   ASSERT(event < nr_mon_events);
 152   monitor->event_count[event] += 1;
 153 }
 154
 155 INLINE_MON\
 156 (unsigned)
 157 mon_get_number_of_insns(mon *monitor,
 158                         int cpu_nr)
 159 {
 160   itable_index index;
 161   unsigned total_insns = 0;
 162   ASSERT(cpu_nr >= 0 && cpu_nr < monitor->nr_cpus);
 163   for (index = 0; index < nr_itable_entries; index++)
 164     total_insns += monitor->cpu_monitor[cpu_nr].issue_count[index];
 165   return total_insns;
 166 }
 167
 168 STATIC_INLINE_MON\
 169 (int)
 170 mon_sort_instruction_names(const void *ptr_a, const void *ptr_b)
 171 {
 172   itable_index a = *(const itable_index *)ptr_a;
 173   itable_index b = *(const itable_index *)ptr_b;
 174
 175   return strcmp (itable[a].name, itable[b].name);
 176 }
 177
 178 STATIC_INLINE_MON\
 179 (char *)
 180 mon_add_commas(char *buf,
 181                int sizeof_buf,
 182                count_type value)
 183 {
 184   int comma = 3;
 185   char *endbuf = buf + sizeof_buf - 1;
 186
 187   *--endbuf = '\0';
 188   do {
 189     if (comma-- == 0)
 190       {
 191         *--endbuf = ',';
 192         comma = 2;
 193       }
 194
 195     *--endbuf = (value % 10) + '0';
 196   } while ((value /= 10) != 0);
 197
 198   ASSERT(endbuf >= buf);
 199   return endbuf;
 200 }
 201
 202
 203 INLINE_MON\
 204 (void)
 205 mon_print_info(psim *system,
 206                mon *monitor,
 207                int verbose)
 208 {
 209   char buffer[20];
 210   char buffer1[20];
 211   char buffer2[20];
 212   char buffer4[20];
 213   char buffer8[20];
 214   int cpu_nr;
 215   int len_cpu;
 216   int len_num = 0;
 217   int len_sub_num[MAX_BYTE_READWRITE];
 218   int len;
 219   int i;
 220   long total_insns = 0;
 221   long cpu_insns_second = 0;
 222   long total_sim_cycles = 0;
 223   long sim_cycles_second = 0;
 224   double cpu_time = 0.0;
 225
 226   for (i = 0; i < MAX_BYTE_READWRITE; i++)
 227     len_sub_num[i] = 0;
 228
 229   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 230     count_type num_insns = mon_get_number_of_insns(monitor, cpu_nr);
 231
 232     total_insns += num_insns;
 233     len = strlen (mon_add_commas(buffer, sizeof(buffer), num_insns));
 234     if (len_num < len)
 235       len_num = len;
 236
 237     for (i = 0; i <= MAX_SHIFT_READWRITE; i++) {
 238       int size = 1<<i;
 239       len = strlen (mon_add_commas(buffer, sizeof(buffer),
 240                                    monitor->cpu_monitor[cpu_nr].read_byte_count[size]));
 241       if (len_sub_num[size] < len)
 242         len_sub_num[size] = len;
 243
 244       len = strlen (mon_add_commas(buffer, sizeof(buffer),
 245                                    monitor->cpu_monitor[cpu_nr].write_byte_count[size]));
 246       if (len_sub_num[size] < len)
 247         len_sub_num[size] = len;
 248     }
 249   }
 250
 251   sprintf (buffer, "%d", (int)monitor->nr_cpus + 1);
 252   len_cpu = strlen (buffer);
 253
 254 #ifdef HAVE_GETRUSAGE
 255   {
 256     struct rusage mytime;
 257     if (getrusage (RUSAGE_SELF, &mytime) == 0
 258         && (mytime.ru_utime.tv_sec > 0 || mytime.ru_utime.tv_usec > 0)) {
 259
 260       cpu_time = (double)mytime.ru_utime.tv_sec + (((double)mytime.ru_utime.tv_usec) / 1000000.0);
 261     }
 262   }
 263   if (WITH_EVENTS)
 264     total_sim_cycles = event_queue_time(psim_event_queue(system)) - 1;
 265   if (cpu_time > 0) {
 266     if (total_insns > 0)
 267       cpu_insns_second = (long)(((double)total_insns / cpu_time) + 0.5);
 268     if (total_sim_cycles) {
 269       sim_cycles_second = (long)(((double)total_sim_cycles / cpu_time) + 0.5);
 270     }
 271   }
 272 #endif
 273
 274   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 275
 276     if (verbose > 1) {
 277       itable_index sort_insns[nr_itable_entries];
 278       int nr_sort_insns = 0;
 279       itable_index index;
 280       int index2;
 281
 282       if (cpu_nr)
 283         printf_filtered ("\n");
 284
 285       for (index = 0; index < nr_itable_entries; index++) {
 286         if (monitor->cpu_monitor[cpu_nr].issue_count[index]) {
 287           sort_insns[nr_sort_insns++] = index;
 288         }
 289       }
 290
 291       qsort((void *)sort_insns, nr_sort_insns, sizeof(sort_insns[0]), mon_sort_instruction_names);
 292
 293       for (index2 = 0; index2 < nr_sort_insns; index2++) {
 294         index = sort_insns[index2];
 295         printf_filtered("CPU #%*d executed %*s %s instruction%s.\n",
 296                         len_cpu, cpu_nr+1,
 297                         len_num, mon_add_commas(buffer,
 298                                                 sizeof(buffer),
 299                                                 monitor->cpu_monitor[cpu_nr].issue_count[index]),
 300                           itable[index].name,
 301                           (monitor->cpu_monitor[cpu_nr].issue_count[index] == 1) ? "" : "s");
 302       }
 303
 304       printf_filtered ("\n");
 305     }
 306
 307     if (CURRENT_MODEL_ISSUE > 0)
 308       {
 309         model_data *model_ptr = cpu_model(psim_cpu(system, cpu_nr));
 310         model_print *ptr = model_mon_info(model_ptr);
 311         model_print *orig_ptr = ptr;
 312
 313         while (ptr) {
 314           if (ptr->count)
 315             printf_filtered("CPU #%*d executed %*s %s%s.\n",
 316                             len_cpu, cpu_nr+1,
 317                             len_num, mon_add_commas(buffer,
 318                                                     sizeof(buffer),
 319                                                     ptr->count),
 320                             ptr->name,
 321                             ((ptr->count == 1)
 322                              ? ptr->suffix_singular
 323                              : ptr->suffix_plural));
 324
 325           ptr = ptr->next;
 326         }
 327
 328         model_mon_info_free(model_ptr, orig_ptr);
 329       }
 330
 331     if (monitor->cpu_monitor[cpu_nr].read_count)
 332       printf_filtered ("CPU #%*d executed %*s read%s  (%*s 1-byte, %*s 2-byte, %*s 4-byte, %*s 8-byte).\n",
 333                        len_cpu, cpu_nr+1,
 334                        len_num, mon_add_commas(buffer,
 335                                                sizeof(buffer),
 336                                                monitor->cpu_monitor[cpu_nr].read_count),
 337                        (monitor->cpu_monitor[cpu_nr].read_count == 1) ? "" : "s",
 338                        len_sub_num[1], mon_add_commas(buffer1,
 339                                                       sizeof(buffer1),
 340                                                       monitor->cpu_monitor[cpu_nr].read_byte_count[1]),
 341                        len_sub_num[2], mon_add_commas(buffer2,
 342                                                       sizeof(buffer2),
 343                                                       monitor->cpu_monitor[cpu_nr].read_byte_count[2]),
 344                        len_sub_num[4], mon_add_commas(buffer4,
 345                                                       sizeof(buffer4),
 346                                                       monitor->cpu_monitor[cpu_nr].read_byte_count[4]),
 347                        len_sub_num[8], mon_add_commas(buffer8,
 348                                                       sizeof(buffer8),
 349                                                       monitor->cpu_monitor[cpu_nr].read_byte_count[8]));
 350
 351     if (monitor->cpu_monitor[cpu_nr].write_count)
 352       printf_filtered ("CPU #%*d executed %*s write%s (%*s 1-byte, %*s 2-byte, %*s 4-byte, %*s 8-byte).\n",
 353                        len_cpu, cpu_nr+1,
 354                        len_num, mon_add_commas(buffer,
 355                                                sizeof(buffer),
 356                                                monitor->cpu_monitor[cpu_nr].write_count),
 357                        (monitor->cpu_monitor[cpu_nr].write_count == 1) ? "" : "s",
 358                        len_sub_num[1], mon_add_commas(buffer1,
 359                                                       sizeof(buffer1),
 360                                                       monitor->cpu_monitor[cpu_nr].write_byte_count[1]),
 361                        len_sub_num[2], mon_add_commas(buffer2,
 362                                                       sizeof(buffer2),
 363                                                       monitor->cpu_monitor[cpu_nr].write_byte_count[2]),
 364                        len_sub_num[4], mon_add_commas(buffer4,
 365                                                       sizeof(buffer4),
 366                                                       monitor->cpu_monitor[cpu_nr].write_byte_count[4]),
 367                        len_sub_num[8], mon_add_commas(buffer8,
 368                                                       sizeof(buffer8),
 369                                                       monitor->cpu_monitor[cpu_nr].write_byte_count[8]));
 370
 371     if (monitor->cpu_monitor[cpu_nr].unaligned_read_count)
 372       printf_filtered ("CPU #%*d executed %*s unaligned read%s.\n",
 373                        len_cpu, cpu_nr+1,
 374                        len_num, mon_add_commas(buffer,
 375                                                sizeof(buffer),
 376                                                monitor->cpu_monitor[cpu_nr].unaligned_read_count),
 377                        (monitor->cpu_monitor[cpu_nr].unaligned_read_count == 1) ? "" : "s");
 378
 379     if (monitor->cpu_monitor[cpu_nr].unaligned_write_count)
 380       printf_filtered ("CPU #%*d executed %*s unaligned write%s.\n",
 381                        len_cpu, cpu_nr+1,
 382                        len_num, mon_add_commas(buffer,
 383                                                sizeof(buffer),
 384                                                monitor->cpu_monitor[cpu_nr].unaligned_write_count),
 385                        (monitor->cpu_monitor[cpu_nr].unaligned_write_count == 1) ? "" : "s");
 386
 387     if (monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss])
 388       printf_filtered ("CPU #%*d executed %*s icache miss%s.\n",
 389                        len_cpu, cpu_nr+1,
 390                        len_num, mon_add_commas(buffer,
 391                                                sizeof(buffer),
 392                                                monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss]),
 393                        (monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss] == 1) ? "" : "es");
 394
 395     {
 396       long nr_insns = mon_get_number_of_insns(monitor, cpu_nr);
 397       if (nr_insns > 0)
 398         printf_filtered("CPU #%*d executed %*s instructions in total.\n",
 399                         len_cpu, cpu_nr+1,
 400                         len_num, mon_add_commas(buffer,
 401                                                 sizeof(buffer),
 402                                                 nr_insns));
 403     }
 404   }
 405
 406   if (total_insns > 0) {
 407     if (monitor->nr_cpus > 1)
 408       printf_filtered("\nAll CPUs executed %s instructions in total.\n",
 409                       mon_add_commas(buffer, sizeof(buffer), total_insns));
 410   }
 411   else if (total_sim_cycles > 0) {
 412     printf_filtered("\nSimulator performed %s simulation cycles.\n",
 413                     mon_add_commas(buffer, sizeof(buffer), total_sim_cycles));
 414   }
 415
 416   if (cpu_insns_second)
 417     printf_filtered ("%sSimulator speed was %s instructions/second.\n",
 418                      (monitor->nr_cpus > 1) ? "" : "\n",
 419                      mon_add_commas(buffer, sizeof(buffer), cpu_insns_second));
 420   else if (sim_cycles_second)
 421     printf_filtered ("Simulator speed was %s simulation cycles/second\n",
 422                      mon_add_commas(buffer, sizeof(buffer), sim_cycles_second));
 423   else if (cpu_time > 0.0)
 424     printf_filtered ("%sSimulator executed for %.2f seconds\n",
 425                      (monitor->nr_cpus > 1) ? "" : "\n", cpu_time);
 426
 427 }
 428
 429 #endif /* _MON_C_ */