diff options
Diffstat (limited to 'src/pulsecore/svolume_orc.c')
-rw-r--r-- | src/pulsecore/svolume_orc.c | 62 |
1 files changed, 42 insertions, 20 deletions
diff --git a/src/pulsecore/svolume_orc.c b/src/pulsecore/svolume_orc.c index db07ba61..270b2911 100644 --- a/src/pulsecore/svolume_orc.c +++ b/src/pulsecore/svolume_orc.c @@ -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)); + 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(); + + 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("ORC: %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(); - 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("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); } |