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