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wmem_test: Add more string performance test 

Add some C99 stdio.h numbers to compare with GLib on platforms
(such as Windows) where they use different implementations.

Add a wmem string test with NULL allocator, to compare wmem and GLib
performance with roughly the same memory allocation.

Use the block allocator as being more representative of normal
wmem performance, instead of using strict, that is normally
used for wmem debugging.
This commit is contained in:
João Valverde 2021-12-18 13:05:58 +00:00 committed by Wireshark GitLab Utility
parent 9465c5c28d
commit 58c297ca81
1 changed files with 85 additions and 5 deletions
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90
wsutil/wmem/wmem_test.c
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@ -520,7 +520,35 @@ wmem_test_stringperf(void)
int i;
double start_utime, start_stime, end_utime, end_stime, utime_ms, stime_ms;
allocator = wmem_allocator_new(WMEM_ALLOCATOR_STRICT);
allocator = wmem_allocator_new(WMEM_ALLOCATOR_BLOCK);
/* C99 snprintf */
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
snprintf(NULL, 0, "%s", s_val);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"snprintf 1 string: u %.3f ms s %.3f ms", utime_ms, stime_ms);
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
snprintf(NULL, 0, "%s%s%s%s%s", s_val, s_val, s_val, s_val, s_val);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"snprintf 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
snprintf(NULL, 0, "%s%u%3.5f%02d", s_val, u_val, d_val, i_val);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"snprintf mixed args: u %.3f ms s %.3f ms", utime_ms, stime_ms);
/* GLib g_snprintf (can use C99 or Gnulib) */
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
@ -546,6 +574,8 @@ wmem_test_stringperf(void)
g_test_minimized_result(utime_ms + stime_ms,
"g_printf_string_upper_bound (via g_snprintf) mixed args: u %.3f ms s %.3f ms", utime_ms, stime_ms);
/* Windows _snprintf_s */
#ifdef _WIN32
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
@ -572,6 +602,8 @@ wmem_test_stringperf(void)
"_snprintf_s upper bound mixed args: u %.3f ms s %.3f ms", utime_ms, stime_ms);
#endif
/* GLib strdup */
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
str_ptr[i] = g_strdup_printf("%s%s", s_val, s_val);
@ -616,13 +648,61 @@ wmem_test_stringperf(void)
g_free(str_ptr[i]);
}
/* wmem strdup null allocator */
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
str_ptr[i] = wmem_strdup_printf(NULL, "%s%s", s_val, s_val);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strdup_printf() 2 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
for (i = 0; i < LOOP_COUNT; i++) {
g_free(str_ptr[i]);
}
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
str_ptr[i] = wmem_strconcat(NULL, s_val, s_val, NULL);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strconcat(NULL) 2 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
for (i = 0; i < LOOP_COUNT; i++) {
g_free(str_ptr[i]);
}
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
str_ptr[i] = wmem_strdup_printf(NULL, "%s%s%s%s%s", s_val, s_val, s_val, s_val, s_val);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strdup_printf(NULL) 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
for (i = 0; i < LOOP_COUNT; i++) {
g_free(str_ptr[i]);
}
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
str_ptr[i] = wmem_strconcat(NULL, s_val, s_val, s_val, s_val, s_val, NULL);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strconcat(NULL) 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
for (i = 0; i < LOOP_COUNT; i++) {
g_free(str_ptr[i]);
}
/* wmem strdup strict allocator */
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
wmem_strdup_printf(allocator, "%s%s", s_val, s_val);
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strdup_printf 2 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
"wmem_strdup_printf(allocator) 2 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
@ -630,7 +710,7 @@ wmem_test_stringperf(void)
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strconcat 2 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
"wmem_strconcat(allocator) 2 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
@ -638,7 +718,7 @@ wmem_test_stringperf(void)
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strdup_printf 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
"wmem_strdup_printf(allocator) 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
RESOURCE_USAGE_START;
for (i = 0; i < LOOP_COUNT; i++) {
@ -646,7 +726,7 @@ wmem_test_stringperf(void)
}
RESOURCE_USAGE_END;
g_test_minimized_result(utime_ms + stime_ms,
"wmem_strconcat 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
"wmem_strconcat(allocator) 5 strings: u %.3f ms s %.3f ms", utime_ms, stime_ms);
wmem_destroy_allocator(allocator);
g_free(str_ptr);