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volume: Get more data from volume tests

Browse source 
This makes the volume tests run in two loops and print the minimum,
maximum and standard deviation of readings from the inner loop. This
makes it easier to reason out performance drops (i.e. algorithmic
problems vs. other system issues such as processor contention).
This commit is contained in:
Arun Raghavan 2011-04-17 15:28:15 +05:30 • committed by Colin Guthrie
parent 837e0a9606
commit 0b2457432a
4 changed files with 151 additions and 61 deletions
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52
src/pulsecore/svolume_arm.c
View file

@ -130,6 +130,7 @@ static void pa_volume_s16ne_arm(int16_t *samples, int32_t *volumes, unsigned cha
#define CHANNELS 2
#define SAMPLES 1022
#define TIMES 1000
#define TIMES2 100
#define PADDING 16
static void run_test(void) {
@ -140,6 +141,9 @@ static void run_test(void) {
int i, j, padding;
pa_do_volume_func_t func;
pa_usec_t start, stop;
int k;
pa_usec_t min = INT_MAX, max = 0;
double s1 = 0, s2 = 0;
func = pa_get_volume_func(PA_SAMPLE_S16NE);
@ -159,25 +163,45 @@ static void run_test(void) {
for (i = 0; i < SAMPLES; i++) {
if (samples[i] != samples_ref[i]) {
printf ("%d: %04x != %04x (%04x * %04x)\n", i, samples[i], samples_ref[i],
samples_orig[i], volumes[i % CHANNELS]);
samples_orig[i], volumes[i % CHANNELS]);
}
}
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_arm(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
pa_log_info("ARM: %llu usec.", (long long unsigned int) (stop - start));
for (k = 0; k < TIMES2; k++) {
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_arm(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples_ref, samples_orig, sizeof(samples));
func(samples_ref, volumes, CHANNELS, sizeof(samples));
if (min > (stop - start)) min = stop - start;
if (max < (stop - start)) max = stop - start;
s1 += stop - start;
s2 += (stop - start) * (stop - start);
}
stop = pa_rtclock_now();
pa_log_info("ref: %llu usec.", (long long unsigned int) (stop - start));
pa_log_info("ARM: %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));
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_info("ref: %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);
pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
}
#endif

48
src/pulsecore/svolume_mmx.c
View file

@ -241,6 +241,7 @@ static void pa_volume_s16re_mmx(int16_t *samples, int32_t *volumes, unsigned cha
#define CHANNELS 2
#define SAMPLES 1022
#define TIMES 1000
#define TIMES2 100
#define PADDING 16
static void run_test(void) {
@ -251,6 +252,9 @@ static void run_test(void) {
int i, j, padding;
pa_do_volume_func_t func;
pa_usec_t start, stop;
int k;
pa_usec_t min = INT_MAX, max = 0;
double s1 = 0, s2 = 0;
func = pa_get_volume_func(PA_SAMPLE_S16NE);
@ -277,21 +281,39 @@ static void run_test(void) {
}
}
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_mmx(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
pa_log_info("MMX: %llu usec.", (long long unsigned int)(stop - start));
for (k = 0; k < TIMES2; k++) {
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_mmx(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples_ref, samples_orig, sizeof(samples));
func(samples_ref, volumes, CHANNELS, sizeof(samples));
if (min > (stop - start)) min = stop - start;
if (max < (stop - start)) max = stop - start;
s1 += stop - start;
s2 += (stop - start) * (stop - start);
}
stop = pa_rtclock_now();
pa_log_info("ref: %llu usec.", (long long unsigned int)(stop - start));
pa_log_info("MMX: %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));
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_info("ref: %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);
pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
}

64
src/pulsecore/svolume_orc.c
View file

@ -52,9 +52,10 @@ pa_volume_s16ne_orc(int16_t *samples, int32_t *volumes, unsigned channels, unsig
#define CHANNELS 2
#define SAMPLES 1022
#define TIMES 1000
#define TIMES2 100
#define PADDING 16
static void run_test (void) {
static void run_test(void) {
int16_t samples[SAMPLES];
int16_t samples_ref[SAMPLES];
int16_t samples_orig[SAMPLES];
@ -62,22 +63,25 @@ static void run_test (void) {
int i, j, padding;
pa_do_volume_func_t func;
pa_usec_t start, stop;
int k;
pa_usec_t min = INT_MAX, max = 0;
double s1 = 0, s2 = 0;
func = pa_get_volume_func (PA_SAMPLE_S16NE);
func = pa_get_volume_func(PA_SAMPLE_S16NE);
printf ("checking ORC %zd\n", sizeof (samples));
printf("checking ORC %zd\n", sizeof(samples));
pa_random (samples, sizeof (samples));
memcpy (samples_ref, samples, sizeof (samples));
memcpy (samples_orig, samples, sizeof (samples));
pa_random(samples, sizeof(samples));
memcpy(samples_ref, samples, sizeof(samples));
memcpy(samples_orig, samples, sizeof(samples));
for (i = 0; i < CHANNELS; i++)
volumes[i] = PA_CLAMP_VOLUME(rand() >> 1);
for (padding = 0; padding < PADDING; padding++, i++)
volumes[i] = volumes[padding];
func (samples_ref, volumes, CHANNELS, sizeof (samples));
pa_volume_s16ne_orc (samples, volumes, CHANNELS, sizeof (samples));
func(samples_ref, volumes, CHANNELS, sizeof(samples));
pa_volume_s16ne_orc(samples, volumes, CHANNELS, sizeof(samples));
for (i = 0; i < SAMPLES; i++) {
if (samples[i] != samples_ref[i]) {
printf ("%d: %04x != %04x (%04x * %04x)\n", i, samples[i], samples_ref[i],
@ -85,21 +89,39 @@ static void run_test (void) {
}
}
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy (samples, samples_orig, sizeof (samples));
pa_volume_s16ne_orc (samples, volumes, CHANNELS, sizeof (samples));
}
stop = pa_rtclock_now();
pa_log_info("ORC: %llu usec.", (long long unsigned int)(stop - start));
for (k = 0; k < TIMES2; k++) {
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_orc(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy (samples_ref, samples_orig, sizeof (samples));
func (samples_ref, volumes, CHANNELS, sizeof (samples));
if (min > (stop - start)) min = stop - start;
if (max < (stop - start)) max = stop - start;
s1 += stop - start;
s2 += (stop - start) * (stop - start);
}
stop = pa_rtclock_now();
pa_log_info("ref: %llu usec.", (long long unsigned int)(stop - start));
pa_log_info("ORC: %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));
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_info("ref: %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);
pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
}

48
src/pulsecore/svolume_sse.c
View file

@ -253,6 +253,7 @@ static void pa_volume_s16re_sse2(int16_t *samples, int32_t *volumes, unsigned ch
#define CHANNELS 2
#define SAMPLES 1022
#define TIMES 1000
#define TIMES2 100
#define PADDING 16
static void run_test(void) {
@ -263,6 +264,9 @@ static void run_test(void) {
int i, j, padding;
pa_do_volume_func_t func;
pa_usec_t start, stop;
int k;
pa_usec_t min = INT_MAX, max = 0;
double s1 = 0, s2 = 0;
func = pa_get_volume_func(PA_SAMPLE_S16NE);
@ -286,21 +290,39 @@ static void run_test(void) {
}
}
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_sse2(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
pa_log_info("SSE: %llu usec.", (long long unsigned int)(stop - start));
for (k = 0; k < TIMES2; k++) {
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples, samples_orig, sizeof(samples));
pa_volume_s16ne_sse2(samples, volumes, CHANNELS, sizeof(samples));
}
stop = pa_rtclock_now();
start = pa_rtclock_now();
for (j = 0; j < TIMES; j++) {
memcpy(samples_ref, samples_orig, sizeof(samples));
func(samples_ref, volumes, CHANNELS, sizeof (samples));
if (min > (stop - start)) min = stop - start;
if (max < (stop - start)) max = stop - start;
s1 += stop - start;
s2 += (stop - start) * (stop - start);
}
stop = pa_rtclock_now();
pa_log_info("ref: %llu usec.", (long long unsigned int)(stop - start));
pa_log_info("SSE: %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));
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_info("ref: %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);
pa_assert_se(memcmp(samples_ref, samples, sizeof(samples)) == 0);
}