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/*
* 1. build netdata (as normally)
* 2. cd profile/
* 3. compile with:
* gcc -O3 -Wall -Wextra -I ../src/ -I ../ -o benchmark-dictionary benchmark-dictionary.c ../src/dictionary.o ../src/log.o ../src/avl.o ../src/common.o -pthread
*
*/
#include "common.h"
struct myvalue {
int i;
};
void netdata_cleanup_and_exit(int ret) { exit(ret); }
int main(int argc, char **argv) {
if(argc || argv) {;}
// DICTIONARY *dict = dictionary_create(DICTIONARY_FLAG_SINGLE_THREADED|DICTIONARY_FLAG_WITH_STATISTICS);
DICTIONARY *dict = dictionary_create(DICTIONARY_FLAG_WITH_STATISTICS);
if(!dict) fatal("Cannot create dictionary.");
struct rusage start, end;
unsigned long long dt;
char buf[100 + 1];
struct myvalue value, *v;
int i, max = 30000000, max2;
// ------------------------------------------------------------------------
getrusage(RUSAGE_SELF, &start);
dict->stats->inserts = dict->stats->deletes = dict->stats->searches = 0ULL;
fprintf(stderr, "Inserting %d entries in the dictionary\n", max);
for(i = 0; i < max; i++) {
value.i = i;
snprintf(buf, 100, "%d", i);
dictionary_set(dict, buf, &value, sizeof(struct myvalue));
}
getrusage(RUSAGE_SELF, &end);
dt = (end.ru_utime.tv_sec * 1000000ULL + end.ru_utime.tv_usec) - (start.ru_utime.tv_sec * 1000000ULL + start.ru_utime.tv_usec);
fprintf(stderr, "Added %d entries in %llu nanoseconds: %llu inserts per second\n", max, dt, max * 1000000ULL / dt);
fprintf(stderr, " > Dictionary: %llu inserts, %llu deletes, %llu searches\n\n", dict->stats->inserts, dict->stats->deletes, dict->stats->searches);
// ------------------------------------------------------------------------
getrusage(RUSAGE_SELF, &start);
dict->stats->inserts = dict->stats->deletes = dict->stats->searches = 0ULL;
fprintf(stderr, "Retrieving %d entries from the dictionary\n", max);
for(i = 0; i < max; i++) {
value.i = i;
snprintf(buf, 100, "%d", i);
v = dictionary_get(dict, buf);
if(!v)
fprintf(stderr, "ERROR: cannot get value %d from the dictionary\n", i);
else if(v->i != i)
fprintf(stderr, "ERROR: expected %d but got %d\n", i, v->i);
}
getrusage(RUSAGE_SELF, &end);
dt = (end.ru_utime.tv_sec * 1000000ULL + end.ru_utime.tv_usec) - (start.ru_utime.tv_sec * 1000000ULL + start.ru_utime.tv_usec);
fprintf(stderr, "Read %d entries in %llu nanoseconds: %llu searches per second\n", max, dt, max * 1000000ULL / dt);
fprintf(stderr, " > Dictionary: %llu inserts, %llu deletes, %llu searches\n\n", dict->stats->inserts, dict->stats->deletes, dict->stats->searches);
// ------------------------------------------------------------------------
getrusage(RUSAGE_SELF, &start);
dict->stats->inserts = dict->stats->deletes = dict->stats->searches = 0ULL;
fprintf(stderr, "Resetting %d entries in the dictionary\n", max);
for(i = 0; i < max; i++) {
value.i = i;
snprintf(buf, 100, "%d", i);
dictionary_set(dict, buf, &value, sizeof(struct myvalue));
}
getrusage(RUSAGE_SELF, &end);
dt = (end.ru_utime.tv_sec * 1000000ULL + end.ru_utime.tv_usec) - (start.ru_utime.tv_sec * 1000000ULL + start.ru_utime.tv_usec);
fprintf(stderr, "Reset %d entries in %llu nanoseconds: %llu resets per second\n", max, dt, max * 1000000ULL / dt);
fprintf(stderr, " > Dictionary: %llu inserts, %llu deletes, %llu searches\n\n", dict->stats->inserts, dict->stats->deletes, dict->stats->searches);
// ------------------------------------------------------------------------
getrusage(RUSAGE_SELF, &start);
dict->stats->inserts = dict->stats->deletes = dict->stats->searches = 0ULL;
fprintf(stderr, "Searching %d non-existing entries in the dictionary\n", max);
max2 = max * 2;
for(i = max; i < max2; i++) {
value.i = i;
snprintf(buf, 100, "%d", i);
v = dictionary_get(dict, buf);
if(v)
fprintf(stderr, "ERROR: cannot got non-existing value %d from the dictionary\n", i);
}
getrusage(RUSAGE_SELF, &end);
dt = (end.ru_utime.tv_sec * 1000000ULL + end.ru_utime.tv_usec) - (start.ru_utime.tv_sec * 1000000ULL + start.ru_utime.tv_usec);
fprintf(stderr, "Searched %d non-existing entries in %llu nanoseconds: %llu not found searches per second\n", max, dt, max * 1000000ULL / dt);
fprintf(stderr, " > Dictionary: %llu inserts, %llu deletes, %llu searches\n\n", dict->stats->inserts, dict->stats->deletes, dict->stats->searches);
// ------------------------------------------------------------------------
getrusage(RUSAGE_SELF, &start);
dict->stats->inserts = dict->stats->deletes = dict->stats->searches = 0ULL;
fprintf(stderr, "Deleting %d entries from the dictionary\n", max);
for(i = 0; i < max; i++) {
value.i = i;
snprintf(buf, 100, "%d", i);
dictionary_del(dict, buf);
}
getrusage(RUSAGE_SELF, &end);
dt = (end.ru_utime.tv_sec * 1000000ULL + end.ru_utime.tv_usec) - (start.ru_utime.tv_sec * 1000000ULL + start.ru_utime.tv_usec);
fprintf(stderr, "Deleted %d entries in %llu nanoseconds: %llu deletes per second\n", max, dt, max * 1000000ULL / dt);
fprintf(stderr, " > Dictionary: %llu inserts, %llu deletes, %llu searches\n\n", dict->stats->inserts, dict->stats->deletes, dict->stats->searches);
// ------------------------------------------------------------------------
getrusage(RUSAGE_SELF, &start);
dict->stats->inserts = dict->stats->deletes = dict->stats->searches = 0ULL;
fprintf(stderr, "Destroying dictionary\n");
dictionary_destroy(dict);
getrusage(RUSAGE_SELF, &end);
dt = (end.ru_utime.tv_sec * 1000000ULL + end.ru_utime.tv_usec) - (start.ru_utime.tv_sec * 1000000ULL + start.ru_utime.tv_usec);
fprintf(stderr, "Destroyed in %llu nanoseconds\n", dt);
return 0;
}
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