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
 107         /* Try to keep benchmarks even. */
 108         seed.base.attr = TDB_ATTRIBUTE_SEED;
 109         seed.base.next = NULL;
 110         seed.seed.seed = 0;
 111
 112         memset(&stats, 0, sizeof(stats));
 113         stats.base.attr = TDB_ATTRIBUTE_STATS;
 114         stats.base.next = NULL;
 115         stats.stats.size = sizeof(stats);
 116
 117         if (argv[1] && strcmp(argv[1], "--internal") == 0) {
 118                 flags = TDB_INTERNAL;
 119                 argc--;
 120                 argv++;
 121         }
 122         if (argv[1] && strcmp(argv[1], "--transaction") == 0) {
 123                 transaction = true;
 124                 argc--;
 125                 argv++;
 126         }
 127         if (argv[1] && strcmp(argv[1], "--stats") == 0) {
 128                 seed.base.next = &stats;
 129                 argc--;
 130                 argv++;
 131         }
 132
 133         tdb = tdb_open("/tmp/speed.tdb", flags, O_RDWR|O_CREAT|O_TRUNC,
 134                        0600, &seed);
 135         if (!tdb)
 136                 err(1, "Opening /tmp/speed.tdb");
 137
 138         key.dptr = (void *)&i;
 139         key.dsize = sizeof(i);
 140         data = key;
 141
 142         if (argv[1]) {
 143                 num = atoi(argv[1]);
 144                 argv++;
 145                 argc--;
 146         }
 147
 148         if (argv[1]) {
 149                 stopat = atoi(argv[1]);
 150                 argv++;
 151                 argc--;
 152         }
 153
 154         if (transaction && tdb_transaction_start(tdb))
 155                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 156
 157         /* Add 1000 records. */
 158         printf("Adding %u records: ", num); fflush(stdout);
 159         gettimeofday(&start, NULL);
 160         for (i = 0; i < num; i++)
 161                 if (tdb_store(tdb, key, data, TDB_INSERT) != 0)
 162                         errx(1, "Inserting key %u in tdb: %s",
 163                              i, tdb_errorstr(tdb));
 164         gettimeofday(&stop, NULL);
 165         if (transaction && tdb_transaction_commit(tdb))
 166                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 167         printf(" %zu ns (%zu bytes)\n",
 168                normalize(&start, &stop, num), file_size());
 169
 170         if (seed.base.next)
 171                 dump_and_clear_stats(&stats.stats);
 172         if (++stage == stopat)
 173                 exit(0);
 174
 175         if (transaction && tdb_transaction_start(tdb))
 176                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 177
 178         /* Finding 1000 records. */
 179         printf("Finding %u records: ", num); fflush(stdout);
 180         gettimeofday(&start, NULL);
 181         for (i = 0; i < num; i++) {
 182                 int *dptr;
 183                 dptr = (int *)tdb_fetch(tdb, key).dptr;
 184                 if (!dptr || *dptr != i)
 185                         errx(1, "Fetching key %u in tdb gave %u",
 186                              i, dptr ? *dptr : -1);
 187         }
 188         gettimeofday(&stop, NULL);
 189         if (transaction && tdb_transaction_commit(tdb))
 190                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 191         printf(" %zu ns (%zu bytes)\n",
 192                normalize(&start, &stop, num), file_size());
 193         if (seed.base.next)
 194                 dump_and_clear_stats(&stats.stats);
 195         if (++stage == stopat)
 196                 exit(0);
 197
 198         if (transaction && tdb_transaction_start(tdb))
 199                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 200
 201         /* Missing 1000 records. */
 202         printf("Missing %u records: ", num); fflush(stdout);
 203         gettimeofday(&start, NULL);
 204         for (i = num; i < num*2; i++) {
 205                 int *dptr;
 206                 dptr = (int *)tdb_fetch(tdb, key).dptr;
 207                 if (dptr)
 208                         errx(1, "Fetching key %u in tdb gave %u", i, *dptr);
 209         }
 210         gettimeofday(&stop, NULL);
 211         if (transaction && tdb_transaction_commit(tdb))
 212                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 213         printf(" %zu ns (%zu bytes)\n",
 214                normalize(&start, &stop, num), file_size());
 215         if (seed.base.next)
 216                 dump_and_clear_stats(&stats.stats);
 217         if (++stage == stopat)
 218                 exit(0);
 219
 220         if (transaction && tdb_transaction_start(tdb))
 221                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 222
 223         /* Traverse 1000 records. */
 224         printf("Traversing %u records: ", num); fflush(stdout);
 225         i = 0;
 226         gettimeofday(&start, NULL);
 227         if (tdb_traverse(tdb, count_record, &i) != num)
 228                 errx(1, "Traverse returned wrong number of records");
 229         if (i != (num - 1) * (num / 2))
 230                 errx(1, "Traverse tallied to %u", i);
 231         gettimeofday(&stop, NULL);
 232         if (transaction && tdb_transaction_commit(tdb))
 233                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 234         printf(" %zu ns (%zu bytes)\n",
 235                normalize(&start, &stop, num), file_size());
 236         if (seed.base.next)
 237                 dump_and_clear_stats(&stats.stats);
 238         if (++stage == stopat)
 239                 exit(0);
 240
 241         if (transaction && tdb_transaction_start(tdb))
 242                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 243
 244         /* Delete 1000 records (not in order). */
 245         printf("Deleting %u records: ", num); fflush(stdout);
 246         gettimeofday(&start, NULL);
 247         for (j = 0; j < num; j++) {
 248                 i = (j + 100003) % num;
 249                 if (tdb_delete(tdb, key) != 0)
 250                         errx(1, "Deleting key %u in tdb: %s",
 251                              i, tdb_errorstr(tdb));
 252         }
 253         gettimeofday(&stop, NULL);
 254         if (transaction && tdb_transaction_commit(tdb))
 255                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 256         printf(" %zu ns (%zu bytes)\n",
 257                normalize(&start, &stop, num), file_size());
 258         if (seed.base.next)
 259                 dump_and_clear_stats(&stats.stats);
 260         if (++stage == stopat)
 261                 exit(0);
 262
 263         if (transaction && tdb_transaction_start(tdb))
 264                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 265
 266         /* Re-add 1000 records (not in order). */
 267         printf("Re-adding %u records: ", num); fflush(stdout);
 268         gettimeofday(&start, NULL);
 269         for (j = 0; j < num; j++) {
 270                 i = (j + 100003) % num;
 271                 if (tdb_store(tdb, key, data, TDB_INSERT) != 0)
 272                         errx(1, "Inserting key %u in tdb: %s",
 273                              i, tdb_errorstr(tdb));
 274         }
 275         gettimeofday(&stop, NULL);
 276         if (transaction && tdb_transaction_commit(tdb))
 277                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 278         printf(" %zu ns (%zu bytes)\n",
 279                normalize(&start, &stop, num), file_size());
 280         if (seed.base.next)
 281                 dump_and_clear_stats(&stats.stats);
 282         if (++stage == stopat)
 283                 exit(0);
 284
 285         if (transaction && tdb_transaction_start(tdb))
 286                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 287
 288         /* Append 1000 records. */
 289         printf("Appending %u records: ", num); fflush(stdout);
 290         gettimeofday(&start, NULL);
 291         for (i = 0; i < num; i++)
 292                 if (tdb_append(tdb, key, data) != 0)
 293                         errx(1, "Appending key %u in tdb: %s",
 294                              i, tdb_errorstr(tdb));
 295         gettimeofday(&stop, NULL);
 296         if (transaction && tdb_transaction_commit(tdb))
 297                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 298         printf(" %zu ns (%zu bytes)\n",
 299                normalize(&start, &stop, num), file_size());
 300         if (++stage == stopat)
 301                 exit(0);
 302
 303         if (transaction && tdb_transaction_start(tdb))
 304                 errx(1, "starting transaction: %s", tdb_errorstr(tdb));
 305
 306         /* Churn 1000 records: not in order! */
 307         printf("Churning %u records: ", num); fflush(stdout);
 308         gettimeofday(&start, NULL);
 309         for (j = 0; j < num; j++) {
 310                 i = (j + 1000019) % num;
 311                 if (tdb_delete(tdb, key) != 0)
 312                         errx(1, "Deleting key %u in tdb: %s",
 313                              i, tdb_errorstr(tdb));
 314                 i += num;
 315                 if (tdb_store(tdb, key, data, TDB_INSERT) != 0)
 316                         errx(1, "Inserting key %u in tdb: %s",
 317                              i, tdb_errorstr(tdb));
 318         }
 319         gettimeofday(&stop, NULL);
 320         if (transaction && tdb_transaction_commit(tdb))
 321                 errx(1, "committing transaction: %s", tdb_errorstr(tdb));
 322         printf(" %zu ns (%zu bytes)\n",
 323                normalize(&start, &stop, num), file_size());
 324
 325         if (seed.base.next)
 326                 dump_and_clear_stats(&stats.stats);
 327         if (++stage == stopat)
 328                 exit(0);
 329
 330         return 0;
 331 }