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comparison 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
comparison
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38:fd42f9b1b95e 39:f9ca85d2f14c
1 1
2 /* ------------------------------------------------------------------------ */ 2 /* ------------------------------------------------------------------------ */
3 /* simple benchmark for getting the min/max range of an audio sample. */ 3 /* simple benchmark for getting the min/max range of an audio sample. */
4
5 /* prevent GCC from optimizing these function calls away - i think there's
6 * probably a better way to do this, but I haven't found it yet :) */
7
8 4
9 extern void test_benchmark_sample_minmax_simple_impl(int16_t *smpl, uint32_t length, int32_t *pmin, int32_t *pmax); 5 extern void test_benchmark_sample_minmax_simple_impl(int16_t *smpl, uint32_t length, int32_t *pmin, int32_t *pmax);
10 extern void test_benchmark_sample_minmax_vec_impl(int16_t *smpl, uint32_t length, int32_t *pmin, int32_t *pmax); 6 extern void test_benchmark_sample_minmax_vec_impl(int16_t *smpl, uint32_t length, int32_t *pmin, int32_t *pmax);
11 7
12 VEC_FUNC_IMPL void test_benchmark_sample_minmax(void) 8 VEC_FUNC_IMPL void test_benchmark_sample_minmax(void)
13 { 9 {
14 int32_t min, max; 10 int32_t min, max;
15 clock_t start, end; 11 clock_t start, end;
16 int i; 12 int i;
17 int16_t *q = vec_malloc(16000000u * 2u); 13 int16_t *q = vec_malloc(16000001u * 2u);
18 14
19 printf("\nsigned 16-bit audio sample min/max - 1 thousand passes - 16000000 samples\n\n"); 15 printf("\nsigned 16-bit audio sample min/max - 1 thousand passes - 16000001 samples\n\n");
20 16
21 /* generate random sample values */ 17 /* generate random sample values */
22 for (i = 0; i < 16000000; i++) 18 for (i = 0; i < 16000001; i++)
23 q[i] = rand(); 19 q[i] = rand();
24 20
25 start = clock(); 21 start = clock();
26 for (i = 0; i < 1000; i++) { 22 for (i = 0; i < 1000; i++) {
27 min = INT32_MAX; 23 min = INT32_MAX;
28 max = INT32_MIN; 24 max = INT32_MIN;
29 test_benchmark_sample_minmax_vec_impl(q, 16000000u, &min, &max); 25 test_benchmark_sample_minmax_vec_impl(q, 16000001u, &min, &max);
30 } 26 }
31 end = clock(); 27 end = clock();
32 28
33 printf("- vec: took %f secs\n", (double)(end - start) / CLOCKS_PER_SEC); 29 printf("- vec: took %f secs\n", (double)(end - start) / CLOCKS_PER_SEC);
34 30
35 start = clock(); 31 start = clock();
36 for (i = 0; i < 1000; i++) { 32 for (i = 0; i < 1000; i++) {
37 min = INT32_MAX; 33 min = INT32_MAX;
38 max = INT32_MIN; 34 max = INT32_MIN;
39 test_benchmark_sample_minmax_simple_impl(q, 16000000u, &min, &max); 35 test_benchmark_sample_minmax_simple_impl(q, 16000001u, &min, &max);
40 } 36 }
41 end = clock(); 37 end = clock();
42 38
43 printf("- simple: took %f secs\n", (double)(end - start) / CLOCKS_PER_SEC); 39 printf("- simple: took %f secs\n", (double)(end - start) / CLOCKS_PER_SEC);
44 40