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authorDaniel Baumann <daniel.baumann@progress-linux.org>2019-04-17 17:57:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2019-04-17 17:57:47 +0000
commit1d63948d79ca6f32889656692d6736c9127f2ee1 (patch)
treebb26a34d7c7b62ac30b0d4da15584efe3e2a754a /tests/profile/benchmark-dictionary.c
parentReleasing debian version 1.13.0-1. (diff)
downloadnetdata-1d63948d79ca6f32889656692d6736c9127f2ee1.tar.xz
netdata-1d63948d79ca6f32889656692d6736c9127f2ee1.zip
Merging upstream version 1.14.0~rc0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/profile/benchmark-dictionary.c')
-rw-r--r--tests/profile/benchmark-dictionary.c130
1 files changed, 130 insertions, 0 deletions
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;
+}