git.ozlabs.org Git - ccan/blob - ccan/tdb2/tools/speed.c

   1 /* Simple speed test for TDB */
   2 #include <err.h>
   3 #include <time.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <unistd.h>
   7 #include <sys/time.h>
   8 #include <fcntl.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <stdbool.h>
  13 #include <ccan/tdb2/tdb2.h>
  14
  15 /* Nanoseconds per operation */
  16 static size_t normalize(const struct timeval *start,
  17                         const struct timeval *stop,
  18                         unsigned int num)
  19 {
  20         struct timeval diff;
  21
  22         timersub(stop, start, &diff);
  23
  24         /* Floating point is more accurate here. */
  25         return (double)(diff.tv_sec * 1000000 + diff.tv_usec)
  26                 / num * 1000;
  27 }
  28
  29 static size_t file_size(void)
  30 {
  31         struct stat st;
  32
  33         if (stat("/tmp/speed.tdb", &st) != 0)
  34                 return -1;
  35         return st.st_size;
  36 }
  37
  38 static int count_record(struct tdb_context *tdb,
  39                         TDB_DATA key, TDB_DATA data, void *p)
  40 {
  41         int *total = p;
  42         *total += *(int *)data.dptr;
  43         return 0;
  44 }
  45
  46 static void dump_and_clear_stats(struct tdb_attribute_stats *stats)
  47 {
  48         printf("allocs = %llu\n",
  49                (unsigned long long)stats->allocs);
  50         printf("  alloc_subhash = %llu\n",
  51                (unsigned long long)stats->alloc_subhash);
  52         printf("  alloc_chain = %llu\n",
  53                (unsigned long long)stats->alloc_chain);
  54         printf("  alloc_bucket_exact = %llu\n",
  55                (unsigned long long)stats->alloc_bucket_exact);
  56         printf("  alloc_bucket_max = %llu\n",
  57                (unsigned long long)stats->alloc_bucket_max);
  58         printf("  alloc_leftover = %llu\n",
  59                (unsigned long long)stats->alloc_leftover);
  60         printf("  alloc_coalesce_tried = %llu\n",
  61                (unsigned long long)stats->alloc_coalesce_tried);
  62         printf("    alloc_coalesce_lockfail = %llu\n",
  63                (unsigned long long)stats->alloc_coalesce_lockfail);
  64         printf("    alloc_coalesce_race = %llu\n",
  65                (unsigned long long)stats->alloc_coalesce_race);
  66         printf("    alloc_coalesce_succeeded = %llu\n",
  67                (unsigned long long)stats->alloc_coalesce_succeeded);
  68         printf("       alloc_coalesce_num_merged = %llu\n",
  69                (unsigned long long)stats->alloc_coalesce_num_merged);
  70         printf("compares = %llu\n",
  71                (unsigned long long)stats->compares);
  72         printf("  compare_wrong_bucket = %llu\n",
  73                (unsigned long long)stats->compare_wrong_bucket);
  74         printf("  compare_wrong_offsetbits = %llu\n",
  75                (unsigned long long)stats->compare_wrong_offsetbits);
  76         printf("  compare_wrong_keylen = %llu\n",
  77                (unsigned long long)stats->compare_wrong_keylen);
  78         printf("  compare_wrong_rechash = %llu\n",
  79                (unsigned long long)stats->compare_wrong_rechash);
  80         printf("  compare_wrong_keycmp = %llu\n",
  81                (unsigned long long)stats->compare_wrong_keycmp);
  82         printf("expands = %llu\n",
  83                (unsigned long long)stats->expands);
  84         printf("frees = %llu\n",
  85                (unsigned long long)stats->frees);
  86         printf("locks = %llu\n",
  87                (unsigned long long)stats->locks);
  88         printf("   lock_lowlevel = %llu\n",
  89                (unsigned long long)stats->lock_lowlevel);
  90         printf("   lock_nonblock = %llu\n",
  91                (unsigned long long)stats->lock_nonblock);
  92
  93         /* Now clear. */
  94         memset(&stats->allocs, 0, (char *)(stats+1) - (char *)&stats->allocs);
  95 }
  96
  97 int main(int argc, char *argv[])
  98 {
  99         unsigned int i, j, num = 1000, stage = 0, stopat = -1;
 100         int flags = TDB_DEFAULT;
 101         bool transaction = false;
 102         TDB_DATA key, data;
 103         struct tdb_context *tdb;
 104         struct timeval start, stop;
 105         union tdb_attribute seed, stats;
 106         enum TDB_ERROR ecode;
 107
 108         /* Try to keep benchmarks even. */
 109         seed.base.attr = TDB_ATTRIBUTE_SEED;
 110         seed.base.next = NULL;
 111         seed.seed.seed = 0;
 112
 113         memset(&stats, 0, sizeof(stats));
 114         stats.base.attr = TDB_ATTRIBUTE_STATS;
 115         stats.base.next = NULL;
 116         stats.stats.size = sizeof(stats);
 117
 118         if (argv[1] && strcmp(argv[1], "--internal") == 0) {
 119                 flags = TDB_INTERNAL;
 120                 argc--;
 121                 argv++;
 122         }
 123         if (argv[1] && strcmp(argv[1], "--transaction") == 0) {
 124                 transaction = true;
 125                 argc--;
 126                 argv++;
 127         }
 128         if (argv[1] && strcmp(argv[1], "--no-sync") == 0) {
 129                 flags |= TDB_NOSYNC;
 130                 argc--;
 131                 argv++;
 132         }
 133         if (argv[1] && strcmp(argv[1], "--stats") == 0) {
 134                 seed.base.next = &stats;
 135                 argc--;
 136                 argv++;
 137         }
 138
 139         tdb = tdb_open("/tmp/speed.tdb", flags, O_RDWR|O_CREAT|O_TRUNC,
 140                        0600, &seed);
 141         if (!tdb)
 142                 err(1, "Opening /tmp/speed.tdb");
 143
 144         key.dptr = (void *)&i;
 145         key.dsize = sizeof(i);
 146         data = key;
 147
 148         if (argv[1]) {
 149                 num = atoi(argv[1]);
 150                 argv++;
 151                 argc--;
 152         }
 153
 154         if (argv[1]) {
 155                 stopat = atoi(argv[1]);
 156                 argv++;
 157                 argc--;
 158         }
 159
 160         if (transaction && (ecode = tdb_transaction_start(tdb)))
 161                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 162
 163         /* Add 1000 records. */
 164         printf("Adding %u records: ", num); fflush(stdout);
 165         gettimeofday(&start, NULL);
 166         for (i = 0; i < num; i++)
 167                 if ((ecode = tdb_store(tdb, key, data, TDB_INSERT)) != 0)
 168                         errx(1, "Inserting key %u in tdb: %s",
 169                              i, tdb_errorstr(ecode));
 170         gettimeofday(&stop, NULL);
 171         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 172                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 173         printf(" %zu ns (%zu bytes)\n",
 174                normalize(&start, &stop, num), file_size());
 175
 176         if (seed.base.next)
 177                 dump_and_clear_stats(&stats.stats);
 178         if (++stage == stopat)
 179                 exit(0);
 180
 181         if (transaction && (ecode = tdb_transaction_start(tdb)))
 182                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 183
 184         /* Finding 1000 records. */
 185         printf("Finding %u records: ", num); fflush(stdout);
 186         gettimeofday(&start, NULL);
 187         for (i = 0; i < num; i++) {
 188                 struct tdb_data dbuf;
 189                 if ((ecode = tdb_fetch(tdb, key, &dbuf)) != TDB_SUCCESS
 190                     || *(int *)dbuf.dptr != i) {
 191                         errx(1, "Fetching key %u in tdb gave %u",
 192                              i, ecode ? ecode : *(int *)dbuf.dptr);
 193                 }
 194         }
 195         gettimeofday(&stop, NULL);
 196         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 197                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 198         printf(" %zu ns (%zu bytes)\n",
 199                normalize(&start, &stop, num), file_size());
 200         if (seed.base.next)
 201                 dump_and_clear_stats(&stats.stats);
 202         if (++stage == stopat)
 203                 exit(0);
 204
 205         if (transaction && (ecode = tdb_transaction_start(tdb)))
 206                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 207
 208         /* Missing 1000 records. */
 209         printf("Missing %u records: ", num); fflush(stdout);
 210         gettimeofday(&start, NULL);
 211         for (i = num; i < num*2; i++) {
 212                 struct tdb_data dbuf;
 213                 ecode = tdb_fetch(tdb, key, &dbuf);
 214                 if (ecode != TDB_ERR_NOEXIST)
 215                         errx(1, "Fetching key %u in tdb gave %s",
 216                              i, tdb_errorstr(ecode));
 217         }
 218         gettimeofday(&stop, NULL);
 219         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 220                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 221         printf(" %zu ns (%zu bytes)\n",
 222                normalize(&start, &stop, num), file_size());
 223         if (seed.base.next)
 224                 dump_and_clear_stats(&stats.stats);
 225         if (++stage == stopat)
 226                 exit(0);
 227
 228         if (transaction && (ecode = tdb_transaction_start(tdb)))
 229                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 230
 231         /* Traverse 1000 records. */
 232         printf("Traversing %u records: ", num); fflush(stdout);
 233         i = 0;
 234         gettimeofday(&start, NULL);
 235         if (tdb_traverse(tdb, count_record, &i) != num)
 236                 errx(1, "Traverse returned wrong number of records");
 237         if (i != (num - 1) * (num / 2))
 238                 errx(1, "Traverse tallied to %u", i);
 239         gettimeofday(&stop, NULL);
 240         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 241                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 242         printf(" %zu ns (%zu bytes)\n",
 243                normalize(&start, &stop, num), file_size());
 244         if (seed.base.next)
 245                 dump_and_clear_stats(&stats.stats);
 246         if (++stage == stopat)
 247                 exit(0);
 248
 249         if (transaction && (ecode = tdb_transaction_start(tdb)))
 250                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 251
 252         /* Delete 1000 records (not in order). */
 253         printf("Deleting %u records: ", num); fflush(stdout);
 254         gettimeofday(&start, NULL);
 255         for (j = 0; j < num; j++) {
 256                 i = (j + 100003) % num;
 257                 if ((ecode = tdb_delete(tdb, key)) != TDB_SUCCESS)
 258                         errx(1, "Deleting key %u in tdb: %s",
 259                              i, tdb_errorstr(ecode));
 260         }
 261         gettimeofday(&stop, NULL);
 262         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 263                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 264         printf(" %zu ns (%zu bytes)\n",
 265                normalize(&start, &stop, num), file_size());
 266         if (seed.base.next)
 267                 dump_and_clear_stats(&stats.stats);
 268         if (++stage == stopat)
 269                 exit(0);
 270
 271         if (transaction && (ecode = tdb_transaction_start(tdb)))
 272                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 273
 274         /* Re-add 1000 records (not in order). */
 275         printf("Re-adding %u records: ", num); fflush(stdout);
 276         gettimeofday(&start, NULL);
 277         for (j = 0; j < num; j++) {
 278                 i = (j + 100003) % num;
 279                 if ((ecode = tdb_store(tdb, key, data, TDB_INSERT)) != 0)
 280                         errx(1, "Inserting key %u in tdb: %s",
 281                              i, tdb_errorstr(ecode));
 282         }
 283         gettimeofday(&stop, NULL);
 284         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 285                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 286         printf(" %zu ns (%zu bytes)\n",
 287                normalize(&start, &stop, num), file_size());
 288         if (seed.base.next)
 289                 dump_and_clear_stats(&stats.stats);
 290         if (++stage == stopat)
 291                 exit(0);
 292
 293         if (transaction && (ecode = tdb_transaction_start(tdb)))
 294                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 295
 296         /* Append 1000 records. */
 297         printf("Appending %u records: ", num); fflush(stdout);
 298         gettimeofday(&start, NULL);
 299         for (i = 0; i < num; i++)
 300                 if ((ecode = tdb_append(tdb, key, data)) != TDB_SUCCESS)
 301                         errx(1, "Appending key %u in tdb: %s",
 302                              i, tdb_errorstr(ecode));
 303         gettimeofday(&stop, NULL);
 304         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 305                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 306         printf(" %zu ns (%zu bytes)\n",
 307                normalize(&start, &stop, num), file_size());
 308         if (++stage == stopat)
 309                 exit(0);
 310
 311         if (transaction && (ecode = tdb_transaction_start(tdb)))
 312                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 313
 314         /* Churn 1000 records: not in order! */
 315         printf("Churning %u records: ", num); fflush(stdout);
 316         gettimeofday(&start, NULL);
 317         for (j = 0; j < num; j++) {
 318                 i = (j + 1000019) % num;
 319                 if ((ecode = tdb_delete(tdb, key)) != TDB_SUCCESS)
 320                         errx(1, "Deleting key %u in tdb: %s",
 321                              i, tdb_errorstr(ecode));
 322                 i += num;
 323                 if ((ecode = tdb_store(tdb, key, data, TDB_INSERT)) != 0)
 324                         errx(1, "Inserting key %u in tdb: %s",
 325                              i, tdb_errorstr(ecode));
 326         }
 327         gettimeofday(&stop, NULL);
 328         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 329                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 330         printf(" %zu ns (%zu bytes)\n",
 331                normalize(&start, &stop, num), file_size());
 332
 333         if (seed.base.next)
 334                 dump_and_clear_stats(&stats.stats);
 335         if (++stage == stopat)
 336                 exit(0);
 337
 338         return 0;
 339 }