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tests: Reorganise cpu-test to reuse code

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This factors out the basic measurement code for each test into a
separate block so that each test can be broken down into a basic
correctness test, and a performance comparison with minimum effort.
This commit is contained in:
Arun Raghavan 2012-10-23 18:26:39 +05:30
parent 3f44eb0559
commit 472fe05297
1 changed files with 40 additions and 50 deletions
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90
src/tests/cpu-test.c
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@ -34,6 +34,31 @@
#include <pulsecore/sconv.h> #include <pulsecore/sconv.h>
#include <pulsecore/sample-util.h> #include <pulsecore/sample-util.h>
#define PA_CPU_TEST_RUN_START(l, t1, t2) \
{ \
int _j, _k; \
int _times = (t1), _times2 = (t2); \
pa_usec_t _start, _stop; \
pa_usec_t _min = INT_MAX, _max = 0; \
double _s1 = 0, _s2 = 0; \
const char *_label = (l); \
\
for (_k = 0; _k < _times2; _k++) { \
_start = pa_rtclock_now(); \
for (_j = 0; _j < _times; _j++)
#define PA_CPU_TEST_RUN_STOP \
_stop = pa_rtclock_now(); \
\
if (_min > (_stop - _start)) _min = _stop - _start; \
if (_max < (_stop - _start)) _max = _stop - _start; \
_s1 += _stop - _start; \
_s2 += (_stop - _start) * (_stop - _start); \
} \
pa_log_debug("%s: %llu usec (min = %llu, max = %llu, stddev = %g).", _label, (long long unsigned int)_s1, \
(long long unsigned int)_min, (long long unsigned int)_max, sqrt(_times2 * _s2 - _s1 * _s1) / _times2); \
}
/* Common defines for svolume tests */ /* Common defines for svolume tests */
#define CHANNELS 2 #define CHANNELS 2
#define SAMPLES 1022 #define SAMPLES 1022
@ -46,12 +71,7 @@ static void run_volume_test(pa_do_volume_func_t func, pa_do_volume_func_t orig_f
int16_t samples_ref[SAMPLES]; int16_t samples_ref[SAMPLES];
int16_t samples_orig[SAMPLES]; int16_t samples_orig[SAMPLES];
int32_t volumes[CHANNELS + PADDING]; int32_t volumes[CHANNELS + PADDING];
int i, j, padding; int i, padding;
pa_usec_t start, stop;
int k;
pa_usec_t min = INT_MAX, max = 0;
double s1 = 0, s2 = 0;
pa_random(samples, sizeof(samples)); pa_random(samples, sizeof(samples));
memcpy(samples_ref, samples, sizeof(samples)); memcpy(samples_ref, samples, sizeof(samples));
@ -72,39 +92,15 @@ static void run_volume_test(pa_do_volume_func_t func, pa_do_volume_func_t orig_f
} }
} }
for (k = 0; k < TIMES2; k++) { PA_CPU_TEST_RUN_START("func", TIMES, TIMES2) {
start = pa_rtclock_now(); memcpy(samples, samples_orig, sizeof(samples));
for (j = 0; j < TIMES; j++) { func(samples, volumes, CHANNELS, sizeof(samples));
memcpy(samples, samples_orig, sizeof(samples)); } PA_CPU_TEST_RUN_STOP
func(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
if (min > (stop - start)) min = stop - start; PA_CPU_TEST_RUN_START("orig", TIMES, TIMES2) {
if (max < (stop - start)) max = stop - start; memcpy(samples_ref, samples_orig, sizeof(samples));
s1 += stop - start; orig_func(samples_ref, volumes, CHANNELS, sizeof(samples));
s2 += (stop - start) * (stop - start); } PA_CPU_TEST_RUN_STOP
}
pa_log_debug("func: %llu usec (min = %llu, max = %llu, stddev = %g).", (long long unsigned int)s1,
(long long unsigned int)min, (long long unsigned int)max, sqrt(TIMES2 * s2 - s1 * s1) / TIMES2);
min = INT_MAX; max = 0;
s1 = s2 = 0;
for (k = 0; k < TIMES2; k++) {
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples_ref, samples_orig, sizeof(samples));
orig_func(samples_ref, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
if (min > (stop - start)) min = stop - start;
if (max < (stop - start)) max = stop - start;
s1 += stop - start;
s2 += (stop - start) * (stop - start);
}
pa_log_debug("orig: %llu usec (min = %llu, max = %llu, stddev = %g).", (long long unsigned int)s1,
(long long unsigned int)min, (long long unsigned int)max, sqrt(TIMES2 * s2 - s1 * s1) / TIMES2);
fail_unless(memcmp(samples_ref, samples, sizeof(samples)) == 0); fail_unless(memcmp(samples_ref, samples, sizeof(samples)) == 0);
} }
@ -206,14 +202,14 @@ END_TEST
/* Start conversion tests */ /* Start conversion tests */
#define SAMPLES 1022 #define SAMPLES 1022
#define TIMES 10000 #define TIMES 1000
#define TIMES2 100
static void run_conv_test_float_to_s16(pa_convert_func_t func, pa_convert_func_t orig_func) { static void run_conv_test_float_to_s16(pa_convert_func_t func, pa_convert_func_t orig_func) {
int16_t samples[SAMPLES]; int16_t samples[SAMPLES];
int16_t samples_ref[SAMPLES]; int16_t samples_ref[SAMPLES];
float floats[SAMPLES]; float floats[SAMPLES];
int i; int i;
pa_usec_t start, stop;
memset(samples_ref, 0, sizeof(samples_ref)); memset(samples_ref, 0, sizeof(samples_ref));
memset(samples, 0, sizeof(samples)); memset(samples, 0, sizeof(samples));
@ -233,19 +229,13 @@ static void run_conv_test_float_to_s16(pa_convert_func_t func, pa_convert_func_t
} }
} }
start = pa_rtclock_now(); PA_CPU_TEST_RUN_START("func", TIMES, TIMES2) {
for (i = 0; i < TIMES; i++) {
func(SAMPLES, floats, samples); func(SAMPLES, floats, samples);
} } PA_CPU_TEST_RUN_STOP
stop = pa_rtclock_now();
pa_log_debug("func: %llu usec.", (long long unsigned int)(stop - start));
start = pa_rtclock_now(); PA_CPU_TEST_RUN_START("orig", TIMES, TIMES2) {
for (i = 0; i < TIMES; i++) {
orig_func(SAMPLES, floats, samples_ref); orig_func(SAMPLES, floats, samples_ref);
} } PA_CPU_TEST_RUN_STOP
stop = pa_rtclock_now();
pa_log_debug("ref: %llu usec.", (long long unsigned int)(stop - start));
} }
#if defined (__i386__) || defined (__amd64__) #if defined (__i386__) || defined (__amd64__)