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annotate test/test_benchmark.h @ 39:f9ca85d2f14c

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*: rearrange some things; add avx512bw support
author Paper <paper@tflc.us>
date Sat, 26 Apr 2025 15:31:39 -0400
parents 4b5a557aa64f
children c6e0df09b86f
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4b5a557aa64f *: turns out extern is a practical joke. rewrite to be always inline again
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2 /* ------------------------------------------------------------------------ */
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3 /* simple benchmark for getting the min/max range of an audio sample. */
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5 extern void test_benchmark_sample_minmax_simple_impl(int16_t *smpl, uint32_t length, int32_t *pmin, int32_t *pmax);
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6 extern void test_benchmark_sample_minmax_vec_impl(int16_t *smpl, uint32_t length, int32_t *pmin, int32_t *pmax);
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8 VEC_FUNC_IMPL void test_benchmark_sample_minmax(void)
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9 {
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10 int32_t min, max;
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11 clock_t start, end;
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12 int i;
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13 int16_t *q = vec_malloc(16000001u * 2u);
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15 printf("\nsigned 16-bit audio sample min/max - 1 thousand passes - 16000001 samples\n\n");
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17 /* generate random sample values */
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18 for (i = 0; i < 16000001; i++)
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19 q[i] = rand();
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21 start = clock();
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22 for (i = 0; i < 1000; i++) {
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23 min = INT32_MAX;
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24 max = INT32_MIN;
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25 test_benchmark_sample_minmax_vec_impl(q, 16000001u, &min, &max);
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26 }
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27 end = clock();
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29 printf("- vec: took %f secs\n", (double)(end - start) / CLOCKS_PER_SEC);
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31 start = clock();
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32 for (i = 0; i < 1000; i++) {
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33 min = INT32_MAX;
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34 max = INT32_MIN;
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35 test_benchmark_sample_minmax_simple_impl(q, 16000001u, &min, &max);
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36 }
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37 end = clock();
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39 printf("- simple: took %f secs\n", (double)(end - start) / CLOCKS_PER_SEC);
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41 printf("\n");
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43 vec_free(q);
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44 }
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46 static void test_benchmark(void)
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47 {
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48 printf("------- BENCHMARK --------\n");
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49 test_benchmark_sample_minmax();
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50 }