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], "--stats") == 0) {
 129                 seed.base.next = &stats;
 130                 argc--;
 131                 argv++;
 132         }
 133
 134         tdb = tdb_open("/tmp/speed.tdb", flags, O_RDWR|O_CREAT|O_TRUNC,
 135                        0600, &seed);
 136         if (!tdb)
 137                 err(1, "Opening /tmp/speed.tdb");
 138
 139         key.dptr = (void *)&i;
 140         key.dsize = sizeof(i);
 141         data = key;
 142
 143         if (argv[1]) {
 144                 num = atoi(argv[1]);
 145                 argv++;
 146                 argc--;
 147         }
 148
 149         if (argv[1]) {
 150                 stopat = atoi(argv[1]);
 151                 argv++;
 152                 argc--;
 153         }
 154
 155         if (transaction && (ecode = tdb_transaction_start(tdb)))
 156                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 157
 158         /* Add 1000 records. */
 159         printf("Adding %u records: ", num); fflush(stdout);
 160         gettimeofday(&start, NULL);
 161         for (i = 0; i < num; i++)
 162                 if ((ecode = tdb_store(tdb, key, data, TDB_INSERT)) != 0)
 163                         errx(1, "Inserting key %u in tdb: %s",
 164                              i, tdb_errorstr(ecode));
 165         gettimeofday(&stop, NULL);
 166         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 167                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 168         printf(" %zu ns (%zu bytes)\n",
 169                normalize(&start, &stop, num), file_size());
 170
 171         if (seed.base.next)
 172                 dump_and_clear_stats(&stats.stats);
 173         if (++stage == stopat)
 174                 exit(0);
 175
 176         if (transaction && (ecode = tdb_transaction_start(tdb)))
 177                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 178
 179         /* Finding 1000 records. */
 180         printf("Finding %u records: ", num); fflush(stdout);
 181         gettimeofday(&start, NULL);
 182         for (i = 0; i < num; i++) {
 183                 struct tdb_data dbuf;
 184                 if ((ecode = tdb_fetch(tdb, key, &dbuf)) != TDB_SUCCESS
 185                     || *(int *)dbuf.dptr != i) {
 186                         errx(1, "Fetching key %u in tdb gave %u",
 187                              i, ecode ? ecode : *(int *)dbuf.dptr);
 188                 }
 189         }
 190         gettimeofday(&stop, NULL);
 191         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 192                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 193         printf(" %zu ns (%zu bytes)\n",
 194                normalize(&start, &stop, num), file_size());
 195         if (seed.base.next)
 196                 dump_and_clear_stats(&stats.stats);
 197         if (++stage == stopat)
 198                 exit(0);
 199
 200         if (transaction && (ecode = tdb_transaction_start(tdb)))
 201                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 202
 203         /* Missing 1000 records. */
 204         printf("Missing %u records: ", num); fflush(stdout);
 205         gettimeofday(&start, NULL);
 206         for (i = num; i < num*2; i++) {
 207                 struct tdb_data dbuf;
 208                 ecode = tdb_fetch(tdb, key, &dbuf);
 209                 if (ecode != TDB_ERR_NOEXIST)
 210                         errx(1, "Fetching key %u in tdb gave %s",
 211                              i, tdb_errorstr(ecode));
 212         }
 213         gettimeofday(&stop, NULL);
 214         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 215                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 216         printf(" %zu ns (%zu bytes)\n",
 217                normalize(&start, &stop, num), file_size());
 218         if (seed.base.next)
 219                 dump_and_clear_stats(&stats.stats);
 220         if (++stage == stopat)
 221                 exit(0);
 222
 223         if (transaction && (ecode = tdb_transaction_start(tdb)))
 224                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 225
 226         /* Traverse 1000 records. */
 227         printf("Traversing %u records: ", num); fflush(stdout);
 228         i = 0;
 229         gettimeofday(&start, NULL);
 230         if (tdb_traverse(tdb, count_record, &i) != num)
 231                 errx(1, "Traverse returned wrong number of records");
 232         if (i != (num - 1) * (num / 2))
 233                 errx(1, "Traverse tallied to %u", i);
 234         gettimeofday(&stop, NULL);
 235         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 236                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 237         printf(" %zu ns (%zu bytes)\n",
 238                normalize(&start, &stop, num), file_size());
 239         if (seed.base.next)
 240                 dump_and_clear_stats(&stats.stats);
 241         if (++stage == stopat)
 242                 exit(0);
 243
 244         if (transaction && (ecode = tdb_transaction_start(tdb)))
 245                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 246
 247         /* Delete 1000 records (not in order). */
 248         printf("Deleting %u records: ", num); fflush(stdout);
 249         gettimeofday(&start, NULL);
 250         for (j = 0; j < num; j++) {
 251                 i = (j + 100003) % num;
 252                 if ((ecode = tdb_delete(tdb, key)) != TDB_SUCCESS)
 253                         errx(1, "Deleting key %u in tdb: %s",
 254                              i, tdb_errorstr(ecode));
 255         }
 256         gettimeofday(&stop, NULL);
 257         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 258                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 259         printf(" %zu ns (%zu bytes)\n",
 260                normalize(&start, &stop, num), file_size());
 261         if (seed.base.next)
 262                 dump_and_clear_stats(&stats.stats);
 263         if (++stage == stopat)
 264                 exit(0);
 265
 266         if (transaction && (ecode = tdb_transaction_start(tdb)))
 267                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 268
 269         /* Re-add 1000 records (not in order). */
 270         printf("Re-adding %u records: ", num); fflush(stdout);
 271         gettimeofday(&start, NULL);
 272         for (j = 0; j < num; j++) {
 273                 i = (j + 100003) % num;
 274                 if ((ecode = tdb_store(tdb, key, data, TDB_INSERT)) != 0)
 275                         errx(1, "Inserting key %u in tdb: %s",
 276                              i, tdb_errorstr(ecode));
 277         }
 278         gettimeofday(&stop, NULL);
 279         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 280                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 281         printf(" %zu ns (%zu bytes)\n",
 282                normalize(&start, &stop, num), file_size());
 283         if (seed.base.next)
 284                 dump_and_clear_stats(&stats.stats);
 285         if (++stage == stopat)
 286                 exit(0);
 287
 288         if (transaction && (ecode = tdb_transaction_start(tdb)))
 289                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 290
 291         /* Append 1000 records. */
 292         printf("Appending %u records: ", num); fflush(stdout);
 293         gettimeofday(&start, NULL);
 294         for (i = 0; i < num; i++)
 295                 if ((ecode = tdb_append(tdb, key, data)) != TDB_SUCCESS)
 296                         errx(1, "Appending key %u in tdb: %s",
 297                              i, tdb_errorstr(ecode));
 298         gettimeofday(&stop, NULL);
 299         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 300                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 301         printf(" %zu ns (%zu bytes)\n",
 302                normalize(&start, &stop, num), file_size());
 303         if (++stage == stopat)
 304                 exit(0);
 305
 306         if (transaction && (ecode = tdb_transaction_start(tdb)))
 307                 errx(1, "starting transaction: %s", tdb_errorstr(ecode));
 308
 309         /* Churn 1000 records: not in order! */
 310         printf("Churning %u records: ", num); fflush(stdout);
 311         gettimeofday(&start, NULL);
 312         for (j = 0; j < num; j++) {
 313                 i = (j + 1000019) % num;
 314                 if ((ecode = tdb_delete(tdb, key)) != TDB_SUCCESS)
 315                         errx(1, "Deleting key %u in tdb: %s",
 316                              i, tdb_errorstr(ecode));
 317                 i += num;
 318                 if ((ecode = tdb_store(tdb, key, data, TDB_INSERT)) != 0)
 319                         errx(1, "Inserting key %u in tdb: %s",
 320                              i, tdb_errorstr(ecode));
 321         }
 322         gettimeofday(&stop, NULL);
 323         if (transaction && (ecode = tdb_transaction_commit(tdb)))
 324                 errx(1, "committing transaction: %s", tdb_errorstr(ecode));
 325         printf(" %zu ns (%zu bytes)\n",
 326                normalize(&start, &stop, num), file_size());
 327
 328         if (seed.base.next)
 329                 dump_and_clear_stats(&stats.stats);
 330         if (++stage == stopat)
 331                 exit(0);
 332
 333         return 0;
 334 }