Function dictTest

app/redis-6.2.6/src/dict.c:1229–1314

./redis-server test dict [ | --accurate] */

/* ./redis-server test dict [<count> | --accurate] */
int dictTest(int argc, char **argv, int accurate) {
    long j;
    long long start, elapsed;
    dict *dict = dictCreate(&BenchmarkDictType,NULL);
    long count = 0;

    if (argc == 4) {
        if (accurate) {
            count = 5000000;
        } else {
            count = strtol(argv[3],NULL,10);
        }
    } else {
        count = 5000;
    }

    start_benchmark();
    for (j = 0; j < count; j++) {
        int retval = dictAdd(dict,stringFromLongLong(j),(void*)j);
        assert(retval == DICT_OK);
    }
    end_benchmark("Inserting");
    assert((long)dictSize(dict) == count);

    /* Wait for rehashing. */
    while (dictIsRehashing(dict)) {
        dictRehashMilliseconds(dict,100);
    }

    start_benchmark();
    for (j = 0; j < count; j++) {
        char *key = stringFromLongLong(j);
        dictEntry *de = dictFind(dict,key);
        assert(de != NULL);
        zfree(key);
    }
    end_benchmark("Linear access of existing elements");

    start_benchmark();
    for (j = 0; j < count; j++) {
        char *key = stringFromLongLong(j);
        dictEntry *de = dictFind(dict,key);
        assert(de != NULL);
        zfree(key);
    }
    end_benchmark("Linear access of existing elements (2nd round)");

    start_benchmark();
    for (j = 0; j < count; j++) {
        char *key = stringFromLongLong(rand() % count);
        dictEntry *de = dictFind(dict,key);
        assert(de != NULL);
        zfree(key);
    }
    end_benchmark("Random access of existing elements");

    start_benchmark();
    for (j = 0; j < count; j++) {