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_SYS_TYPES_H
  51 #include <sys/types.h>
  52 #endif
  53
  54 #ifdef HAVE_TIME_H
  55 #include <time.h>
  56 #endif
  57
  58 #ifdef HAVE_SYS_TIMES_H
  59 #include <sys/times.h>
  60 #endif
  61
  62 #ifdef HAVE_SYS_TIME_H
  63 #include <sys/time.h>
  64 #endif
  65
  66 #ifdef HAVE_SYS_RESOURCE_H
  67 #include <sys/resource.h>
  68 int getrusage();
  69 #endif
  70
  71 struct _cpu_mon {
  72   count_type issue_count[nr_itable_entries];
  73   count_type read_count;
  74   count_type write_count;
  75   count_type unaligned_read_count;
  76   count_type unaligned_write_count;
  77   count_type event_count[nr_mon_events];
  78 };
  79
  80 struct _mon {
  81   int nr_cpus;
  82   cpu_mon cpu_monitor[MAX_NR_PROCESSORS];
  83 };
  84
  85
  86 INLINE_MON mon *
  87 mon_create(void)
  88 {
  89   mon *monitor = ZALLOC(mon);
  90   return monitor;
  91 }
  92
  93
  94 INLINE_MON cpu_mon *
  95 mon_cpu(mon *monitor,
  96         int cpu_nr)
  97 {
  98   if (cpu_nr < 0 || cpu_nr >= MAX_NR_PROCESSORS)
  99     error("mon_cpu() - invalid cpu number\n");
 100   return &monitor->cpu_monitor[cpu_nr];
 101 }
 102
 103
 104 INLINE_MON void
 105 mon_init(mon *monitor,
 106          int nr_cpus)
 107 {
 108   memset(monitor, 0, sizeof(*monitor));
 109   monitor->nr_cpus = nr_cpus;
 110 }
 111
 112
 113 INLINE_MON void
 114 mon_issue(itable_index index,
 115           cpu *processor,
 116           unsigned_word cia)
 117 {
 118   cpu_mon *monitor = cpu_monitor(processor);
 119   ASSERT(index <= nr_itable_entries);
 120   monitor->issue_count[index] += 1;
 121 }
 122
 123
 124 INLINE_MON void
 125 mon_read(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->read_count += 1;
 133   if ((nr_bytes - 1) & ea)
 134     monitor->unaligned_read_count += 1;
 135 }
 136
 137
 138 INLINE_MON void
 139 mon_write(unsigned_word ea,
 140           unsigned_word ra,
 141           unsigned nr_bytes,
 142           cpu *processor,
 143           unsigned_word cia)
 144 {
 145   cpu_mon *monitor = cpu_monitor(processor);
 146   monitor->write_count += 1;
 147   if ((nr_bytes - 1) & ea)
 148     monitor->unaligned_write_count += 1;
 149 }
 150
 151 INLINE_MON void
 152 mon_event(mon_events event,
 153           cpu *processor,
 154           unsigned_word cia)
 155 {
 156   cpu_mon *monitor = cpu_monitor(processor);
 157   ASSERT(event >= 0 && event < nr_mon_events);
 158   monitor->event_count[event] += 1;
 159 }
 160
 161 STATIC_INLINE_MON count_type
 162 mon_get_number_of_insns(cpu_mon *monitor)
 163 {
 164   itable_index index;
 165   count_type total_insns = 0;
 166   for (index = 0; index < nr_itable_entries; index++)
 167     total_insns += monitor->issue_count[index];
 168   return total_insns;
 169 }
 170
 171 static int
 172 mon_sort_instruction_names(const void *ptr_a, const void *ptr_b)
 173 {
 174   itable_index a = *(const itable_index *)ptr_a;
 175   itable_index b = *(const itable_index *)ptr_b;
 176
 177   return strcmp (itable[a].name, itable[b].name);
 178 }
 179
 180 STATIC_INLINE_MON char *
 181 mon_add_commas(char *buf,
 182                int sizeof_buf,
 183                count_type value)
 184 {
 185   int comma = 3;
 186   char *endbuf = buf + sizeof_buf - 1;
 187
 188   *--endbuf = '\0';
 189   do {
 190     if (comma-- == 0)
 191       {
 192         *--endbuf = ',';
 193         comma = 2;
 194       }
 195
 196     *--endbuf = (value % 10) + '0';
 197   } while ((value /= 10) != 0);
 198
 199   ASSERT(endbuf >= buf);
 200   return endbuf;
 201 }
 202
 203
 204 INLINE_MON void
 205 mon_print_info(psim *system,
 206                mon *monitor,
 207                int verbose)
 208 {
 209   char buffer[20];
 210   int cpu_nr;
 211   int len_cpu;
 212   int len_num = 0;
 213   int len;
 214   long total_insns = 0;
 215   long cpu_insns_second = 0;
 216   double cpu_time = 0.0;
 217
 218   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 219     count_type num_insns = mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr]);
 220
 221     total_insns += num_insns;
 222     len = strlen (mon_add_commas(buffer, sizeof(buffer), num_insns));
 223     if (len_num < len)
 224       len_num = len;
 225   }
 226
 227   sprintf (buffer, "%d", (int)monitor->nr_cpus + 1);
 228   len_cpu = strlen (buffer);
 229
 230 #ifdef HAVE_GETRUSAGE
 231   if (total_insns && verbose)
 232     {
 233       struct rusage mytime;
 234       if (getrusage (RUSAGE_SELF, &mytime) == 0
 235           && (mytime.ru_utime.tv_sec > 0 || mytime.ru_utime.tv_usec > 0)) {
 236
 237         cpu_time = (double)mytime.ru_utime.tv_sec + (((double)mytime.ru_utime.tv_usec) / 1000000.0);
 238         cpu_insns_second = (long)(((double)total_insns / cpu_time) + 0.5);
 239       }
 240   }
 241 #endif
 242
 243   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 244
 245     if (verbose > 1) {
 246       itable_index sort_insns[nr_itable_entries];
 247       int nr_sort_insns = 0;
 248       itable_index index;
 249       int index2;
 250
 251       if (cpu_nr)
 252         printf_filtered ("\n");
 253
 254       for (index = 0; index < nr_itable_entries; index++) {
 255         if (monitor->cpu_monitor[cpu_nr].issue_count[index]) {
 256           sort_insns[nr_sort_insns++] = index;
 257         }
 258       }
 259
 260       qsort((void *)sort_insns, nr_sort_insns, sizeof(sort_insns[0]), mon_sort_instruction_names);
 261
 262       for (index2 = 0; index2 < nr_sort_insns; index2++) {
 263         index = sort_insns[index2];
 264         printf_filtered("CPU #%*d executed %*s %s instruction%s.\n",
 265                         len_cpu, cpu_nr+1,
 266                         len_num, mon_add_commas(buffer,
 267                                                 sizeof(buffer),
 268                                                 monitor->cpu_monitor[cpu_nr].issue_count[index]),
 269                           itable[index].name,
 270                           (monitor->cpu_monitor[cpu_nr].issue_count[index] == 1) ? "" : "s");
 271       }
 272
 273       printf_filtered ("\n");
 274     }
 275
 276     if (CURRENT_MODEL_ISSUE > 0)
 277       {
 278         model_data *model_ptr = cpu_model(psim_cpu(system, cpu_nr));
 279         model_print *ptr = model_mon_info(model_ptr);
 280         model_print *orig_ptr = ptr;
 281
 282         while (ptr) {
 283           if (ptr->count)
 284             printf_filtered("CPU #%*d executed %*s %s%s.\n",
 285                             len_cpu, cpu_nr+1,
 286                             len_num, mon_add_commas(buffer,
 287                                                     sizeof(buffer),
 288                                                     ptr->count),
 289                             ptr->name,
 290                             ((ptr->count == 1)
 291                              ? ptr->suffix_singular
 292                              : ptr->suffix_plural));
 293
 294           ptr = ptr->next;
 295         }
 296
 297         model_mon_info_free(model_ptr, orig_ptr);
 298       }
 299
 300     if (monitor->cpu_monitor[cpu_nr].read_count)
 301       printf_filtered ("CPU #%*d executed %*s data read%s.\n",
 302                        len_cpu, cpu_nr+1,
 303                        len_num, mon_add_commas(buffer,
 304                                                sizeof(buffer),
 305                                                monitor->cpu_monitor[cpu_nr].read_count),
 306                        (monitor->cpu_monitor[cpu_nr].read_count == 1) ? "" : "s");
 307
 308     if (monitor->cpu_monitor[cpu_nr].write_count)
 309       printf_filtered ("CPU #%*d executed %*s data write%s.\n",
 310                        len_cpu, cpu_nr+1,
 311                        len_num, mon_add_commas(buffer,
 312                                                sizeof(buffer),
 313                                                monitor->cpu_monitor[cpu_nr].write_count),
 314                        (monitor->cpu_monitor[cpu_nr].write_count == 1) ? "" : "s");
 315
 316     if (monitor->cpu_monitor[cpu_nr].unaligned_read_count)
 317       printf_filtered ("CPU #%*d executed %*s unaligned data read%s.\n",
 318                        len_cpu, cpu_nr+1,
 319                        len_num, mon_add_commas(buffer,
 320                                                sizeof(buffer),
 321                                                monitor->cpu_monitor[cpu_nr].read_count),
 322                        (monitor->cpu_monitor[cpu_nr].read_count == 1) ? "" : "s");
 323
 324     if (monitor->cpu_monitor[cpu_nr].unaligned_write_count)
 325       printf_filtered ("CPU #%*d executed %*s unaligned data write%s.\n",
 326                        len_cpu, cpu_nr+1,
 327                        len_num, mon_add_commas(buffer,
 328                                                sizeof(buffer),
 329                                                monitor->cpu_monitor[cpu_nr].write_count),
 330                        (monitor->cpu_monitor[cpu_nr].write_count == 1) ? "" : "s");
 331
 332     if (monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss])
 333       printf_filtered ("CPU #%*d executed %*s icache miss%s.\n",
 334                        len_cpu, cpu_nr+1,
 335                        len_num, mon_add_commas(buffer,
 336                                                sizeof(buffer),
 337                                                monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss]),
 338                        (monitor->cpu_monitor[cpu_nr].event_count[mon_event_icache_miss] == 1) ? "" : "es");
 339
 340     printf_filtered("CPU #%*d executed %*s instructions in total.\n",
 341                     len_cpu, cpu_nr+1,
 342                     len_num, mon_add_commas(buffer,
 343                                             sizeof(buffer),
 344                                             mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr])));
 345
 346   }
 347
 348   if (monitor->nr_cpus > 1)
 349     printf_filtered("\nAll CPUs executed %s instructions in total.\n",
 350                     mon_add_commas(buffer, sizeof(buffer), total_insns));
 351
 352   if (cpu_insns_second)
 353     printf_filtered ("%sSimulator speed was %s instructions/second\n",
 354                      (monitor->nr_cpus > 1) ? "" : "\n",
 355                      mon_add_commas(buffer, sizeof(buffer), cpu_insns_second));
 356 }
 357
 358 #endif /* _MON_C_ */