From 2e85f9325a797977eea9dfea0a925775ddd211d9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Feb 2021 12:49:00 +0100 Subject: Merging upstream version 1.29.0. Signed-off-by: Daniel Baumann --- tests/profile/benchmark-dictionary.c | 130 +++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 tests/profile/benchmark-dictionary.c (limited to 'tests/profile/benchmark-dictionary.c') diff --git a/tests/profile/benchmark-dictionary.c b/tests/profile/benchmark-dictionary.c new file mode 100644 index 000000000..30c098d5d --- /dev/null +++ b/tests/profile/benchmark-dictionary.c @@ -0,0 +1,130 @@ +/* SPDX-License-Identifier: GPL-3.0-or-later */ +/* + * 1. build netdata (as normally) + * 2. cd tests/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 "config.h" +#include "libnetdata/libnetdata.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; +} -- cgit v1.2.3