sim/ppc/mon.c

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1995, 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 2 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, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22 #ifndef _MON_C_
  23 #define _MON_C_
  24
  25 #ifndef STATIC_INLINE_MON
  26 #define STATIC_INLINE_MON STATIC_INLINE
  27 #endif
  28
  29 #include "basics.h"
  30 #include "cpu.h"
  31 #include "mon.h"
  32 #include <stdio.h>
  33
  34 #ifdef HAVE_STRING_H
  35 #include <string.h>
  36 #else
  37 #ifdef HAVE_STRINGS_H
  38 #include <strings.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_UNISTD_H
  43 #include <unistd.h>
  44 #endif
  45
  46 #ifdef HAVE_STDLIB_H
  47 #include <stdlib.h>
  48 #endif
  49
  50 #ifdef HAVE_TIME_H
  51 #include <time.h>
  52 #endif
  53
  54 #ifdef HAVE_SYS_TIMES_H
  55 #include <sys/times.h>
  56 #endif
  57
  58 #ifdef HAVE_SYS_RESOURCE_H
  59 #include <sys/resource.h>
  60 int getrusage();
  61 #endif
  62
  63 struct _cpu_mon {
  64   count_type issue_count[nr_itable_entries];
  65   count_type read_count;
  66   count_type write_count;
  67   count_type unaligned_read_count;
  68   count_type unaligned_write_count;
  69   count_type event_count[nr_mon_events];
  70 };
  71
  72 struct _mon {
  73   int nr_cpus;
  74   cpu_mon cpu_monitor[MAX_NR_PROCESSORS];
  75 };
  76
  77
  78 INLINE_MON mon *
  79 mon_create(void)
  80 {
  81   mon *monitor = ZALLOC(mon);
  82   return monitor;
  83 }
  84
  85
  86 INLINE_MON cpu_mon *
  87 mon_cpu(mon *monitor,
  88         int cpu_nr)
  89 {
  90   if (cpu_nr < 0 || cpu_nr >= MAX_NR_PROCESSORS)
  91     error("mon_cpu() - invalid cpu number\n");
  92   return &monitor->cpu_monitor[cpu_nr];
  93 }
  94
  95
  96 INLINE_MON void
  97 mon_init(mon *monitor,
  98          int nr_cpus)
  99 {
 100   memset(monitor, 0, sizeof(*monitor));
 101   monitor->nr_cpus = nr_cpus;
 102 }
 103
 104
 105 INLINE_MON void
 106 mon_issue(itable_index index,
 107           cpu *processor,
 108           unsigned_word cia)
 109 {
 110   cpu_mon *monitor = cpu_monitor(processor);
 111   ASSERT(index <= nr_itable_entries);
 112   monitor->issue_count[index] += 1;
 113 }
 114
 115
 116 INLINE_MON void
 117 mon_read(unsigned_word ea,
 118          unsigned_word ra,
 119          unsigned nr_bytes,
 120          cpu *processor,
 121          unsigned_word cia)
 122 {
 123   cpu_mon *monitor = cpu_monitor(processor);
 124   monitor->read_count += 1;
 125   if ((nr_bytes - 1) & ea)
 126     monitor->unaligned_read_count += 1;
 127 }
 128
 129
 130 INLINE_MON 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   if ((nr_bytes - 1) & ea)
 140     monitor->unaligned_write_count += 1;
 141 }
 142
 143 INLINE_MON void
 144 mon_event(mon_events event,
 145           cpu *processor,
 146           unsigned_word cia)
 147 {
 148   cpu_mon *monitor = cpu_monitor(processor);
 149   ASSERT(event >= 0 && event < nr_mon_events);
 150   monitor->event_count[event] += 1;
 151 }
 152
 153 STATIC_INLINE_MON count_type
 154 mon_get_number_of_insns(cpu_mon *monitor)
 155 {
 156   itable_index index;
 157   count_type total_insns = 0;
 158   for (index = 0; index < nr_itable_entries; index++)
 159     total_insns += monitor->issue_count[index];
 160   return total_insns;
 161 }
 162
 163 static 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 char *
 173 mon_add_commas(char *buf,
 174                int sizeof_buf,
 175                count_type value)
 176 {
 177   int comma = 3;
 178   char *endbuf = buf + sizeof_buf - 1;
 179
 180   *--endbuf = '\0';
 181   do {
 182     if (comma-- == 0)
 183       {
 184         *--endbuf = ',';
 185         comma = 2;
 186       }
 187
 188     *--endbuf = (value % 10) + '0';
 189   } while ((value /= 10) != 0);
 190
 191   ASSERT(endbuf >= buf);
 192   return endbuf;
 193 }
 194
 195
 196 INLINE_MON void
 197 mon_print_info(psim *system,
 198                mon *monitor,
 199                int verbose)
 200 {
 201   char buffer[20];
 202   int cpu_nr;
 203   int len_cpu;
 204   int len_num = 0;
 205   int len;
 206   long total_insns = 0;
 207   long cpu_insns_second = 0;
 208   double cpu_time = 0.0;
 209
 210   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 211     count_type num_insns = mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr]);
 212
 213     total_insns += num_insns;
 214     len = strlen (mon_add_commas(buffer, sizeof(buffer), num_insns));
 215     if (len_num < len)
 216       len_num = len;
 217   }
 218
 219   sprintf (buffer, "%d", (int)monitor->nr_cpus + 1);
 220   len_cpu = strlen (buffer);
 221
 222 #ifdef HAVE_GETRUSAGE
 223   if (total_insns && verbose > 1)
 224     {
 225       struct rusage mytime;
 226       if (getrusage (RUSAGE_SELF, &mytime) == 0
 227           && (mytime.ru_utime.tv_sec > 0 || mytime.ru_utime.tv_usec > 0)) {
 228
 229         cpu_time = (double)mytime.ru_utime.tv_sec + (((double)mytime.ru_utime.tv_usec) / 1000000.0);
 230         cpu_insns_second = (long)(((double)total_insns / cpu_time) + 0.5);
 231       }
 232   }
 233 #endif
 234
 235   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 236
 237     if (verbose > 1) {
 238       itable_index sort_insns[nr_itable_entries];
 239       int nr_sort_insns = 0;
 240       itable_index index;
 241       int index2;
 242
 243       if (cpu_nr)
 244         printf_filtered ("\n");
 245
 246       for (index = 0; index < nr_itable_entries; index++) {
 247         if (monitor->cpu_monitor[cpu_nr].issue_count[index]) {
 248           sort_insns[nr_sort_insns++] = index;
 249         }
 250       }
 251
 252       qsort((void *)sort_insns, nr_sort_insns, sizeof(sort_insns[0]), mon_sort_instruction_names);
 253
 254       for (index2 = 0; index2 < nr_sort_insns; index2++) {
 255         index = sort_insns[index2];
 256         printf_filtered("CPU #%*d executed %*s %s instruction%s.\n",
 257                         len_cpu, cpu_nr+1,
 258                         len_num, mon_add_commas(buffer,
 259                                                 sizeof(buffer),
 260                                                 monitor->cpu_monitor[cpu_nr].issue_count[index]),
 261                           itable[index].name,
 262                           (monitor->cpu_monitor[cpu_nr].issue_count[index] == 1) ? "" : "s");
 263       }
 264
 265       printf_filtered ("\n");
 266     }
 267
 268     if (WITH_MODEL_ISSUE)
 269       {
 270         model_data *model_ptr = cpu_model(psim_cpu(system, cpu_nr));
 271         model_print *ptr = model_mon_info(model_ptr);
 272         model_print *orig_ptr = ptr;
 273
 274         while (ptr) {
 275           if (ptr->count)
 276             printf_filtered("CPU #%*d executed %*s %s%s.\n",
 277                             len_cpu, cpu_nr+1,
 278                             len_num, mon_add_commas(buffer,
 279                                                     sizeof(buffer),
 280                                                     ptr->count),
 281                             ptr->name,
 282                             ((ptr->count == 1)
 283                              ? ptr->suffix_singular
 284                              : ptr->suffix_plural));
 285
 286           ptr = ptr->next;
 287         }
 288
 289         model_mon_info_free(model_ptr, orig_ptr);
 290       }
 291
 292     if (monitor->cpu_monitor[cpu_nr].read_count)
 293       printf_filtered ("CPU #%*d executed %*s data read%s.\n",
 294                        len_cpu, cpu_nr+1,
 295                        len_num, mon_add_commas(buffer,
 296                                                sizeof(buffer),
 297                                                monitor->cpu_monitor[cpu_nr].read_count),
 298                        (monitor->cpu_monitor[cpu_nr].read_count == 1) ? "" : "s");
 299
 300     if (monitor->cpu_monitor[cpu_nr].write_count)
 301       printf_filtered ("CPU #%*d executed %*s data write%s.\n",
 302                        len_cpu, cpu_nr+1,
 303                        len_num, mon_add_commas(buffer,
 304                                                sizeof(buffer),
 305                                                monitor->cpu_monitor[cpu_nr].write_count),
 306                        (monitor->cpu_monitor[cpu_nr].write_count == 1) ? "" : "s");
 307
 308     if (monitor->cpu_monitor[cpu_nr].unaligned_read_count)
 309       printf_filtered ("CPU #%*d executed %*s unaligned data read%s.\n",
 310                        len_cpu, cpu_nr+1,
 311                        len_num, mon_add_commas(buffer,
 312                                                sizeof(buffer),
 313                                                monitor->cpu_monitor[cpu_nr].read_count),
 314                        (monitor->cpu_monitor[cpu_nr].read_count == 1) ? "" : "s");
 315
 316     if (monitor->cpu_monitor[cpu_nr].unaligned_write_count)
 317       printf_filtered ("CPU #%*d executed %*s unaligned data write%s.\n",
 318                        len_cpu, cpu_nr+1,
 319                        len_num, mon_add_commas(buffer,
 320                                                sizeof(buffer),
 321                                                monitor->cpu_monitor[cpu_nr].write_count),
 322                        (monitor->cpu_monitor[cpu_nr].write_count == 1) ? "" : "s");
 323
 324     if (monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss])
 325       printf_filtered ("CPU #%*d executed %*s icache miss%s.\n",
 326                        len_cpu, cpu_nr+1,
 327                        len_num, mon_add_commas(buffer,
 328                                                sizeof(buffer),
 329                                                monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss]),
 330                        (monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss] == 1) ? "" : "es");
 331
 332     printf_filtered("CPU #%*d executed %*s instructions in total.\n",
 333                     len_cpu, cpu_nr+1,
 334                     len_num, mon_add_commas(buffer,
 335                                             sizeof(buffer),
 336                                             mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr])));
 337
 338   }
 339
 340   if (monitor->nr_cpus > 1)
 341     printf_filtered("\nAll CPUs executed %s instructions in total.\n",
 342                     mon_add_commas(buffer, sizeof(buffer), total_insns));
 343
 344   if (cpu_insns_second)
 345     printf_filtered ("%sSimulator speed was %s instructions/second\n",
 346                      (monitor->nr_cpus <= 1 && verbose <= 1) ? "" : "\n",
 347                      mon_add_commas(buffer, sizeof(buffer), cpu_insns_second));
 348 }
 349
 350 #endif /* _MON_C_ */