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Always build the json_object_deep_copy() code, but conditionalize running it on a --benchmark command line option.

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This commit is contained in:
Eric Haszlakiewicz
2017-11-29 17:57:51 -05:00
parent 437716c5b4
commit 96efeadd6e
1 changed files with 37 additions and 10 deletions
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47
tests/test_deep_copy.c
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@@ -8,6 +8,8 @@
#include "json.h"
static void do_benchmark(json_object *src1);
static const char *json_str1 =
"{"
" \"glossary\": {"
@@ -79,6 +81,12 @@ int main(int argc, char **argv)
{
struct json_object *src1, *src2, *src3;
struct json_object *dst1 = NULL, *dst2 = NULL, *dst3 = NULL;
int benchmark = 0;
if (argc > 1 && strcmp(argv[1], "--benchmark") == 0)
{
benchmark = 1;
}
src1 = json_tokener_parse(json_str1);
src2 = json_tokener_parse(json_str2);
@@ -124,6 +132,7 @@ int main(int argc, char **argv)
json_object_get(dst1);
assert(-1 == json_object_deep_copy(src1, &dst1));
assert(errno == EINVAL);
json_object_put(dst1);
printf("PASSED - trying to overrwrite an object that has refcount > 1");
@@ -148,28 +157,46 @@ int main(int argc, char **argv)
json_object_put(dst2);
json_object_put(dst3);
#if BENCHMARK
if (benchmark)
{
do_benchmark(src2);
}
json_object_put(src1);
json_object_put(src2);
json_object_put(src3);
return 0;
}
static void do_benchmark(json_object *src2)
{
json_object *dst2 = NULL;
int ii;
/**
* The numbers that I got are:
* BENCHMARK - 1000000 iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took 20 seconds
* BENCHMARK - 1000000 iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took 7 seconds
* BENCHMARK - 1000000 iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took 71 seconds
* BENCHMARK - 1000000 iterations of 'json_object_deep_copy(src2, &dst2)' took 29 seconds
*/
int iterations = 1000000;
time_t start = time(NULL);
for (i = 0; i < iterations; i++) {
start = time(NULL);
for (ii = 0; ii < iterations; ii++) {
dst2 = json_tokener_parse(json_object_get_string(src2));
json_object_put(dst2);
}
printf("BENCHMARK - %d iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took %d seconds\n", iterations, (int)(time(NULL) - start));
start = time(NULL);
for (i = 0; i < iterations; i++) {
dst2 = NULL;
for (ii = 0; ii < iterations; ii++) {
json_object_deep_copy(src2, &dst2);
json_object_put(dst2);
dst2 = NULL;
}
json_object_put(dst2);
printf("BENCHMARK - %d iterations of 'dst2 = json_tokener_parse(json_object_get_string(src2))' took %d seconds\n", iterations, (int)(time(NULL) - start));
#endif
return 0;
printf("BENCHMARK - %d iterations of 'json_object_deep_copy(src2, &dst2)' took %d seconds\n", iterations, (int)(time(NULL) - start));
}