1 // SPDX-License-Identifier: GPL-2.0
9 #define ITERATIONS 1000
10 #define ITERATIONS_BENCH 100000
12 int test_strlen(const void *s);
14 /* test all offsets and lengths */
15 static void test_one(char *s)
19 for (offset = 0; offset < SIZE; offset++) {
23 y = strlen(s + offset);
24 x = test_strlen(s + offset);
27 printf("strlen() returned %d, should have returned %d (%p offset %ld)\n", x, y, s, offset);
29 for (i = offset; i < SIZE; i++)
30 printf("%02x ", s[i]);
36 static void bench_test(char *s)
38 struct timespec ts_start, ts_end;
41 clock_gettime(CLOCK_MONOTONIC, &ts_start);
43 for (i = 0; i < ITERATIONS_BENCH; i++)
46 clock_gettime(CLOCK_MONOTONIC, &ts_end);
48 printf("len %3.3d : time = %.6f\n", test_strlen(s), ts_end.tv_sec - ts_start.tv_sec + (ts_end.tv_nsec - ts_start.tv_nsec) / 1e9);
51 static int testcase(void)
56 s = memalign(128, SIZE);
65 for (i = 0; i < SIZE; i++) {
75 for (i = 0; i < ITERATIONS; i++) {
78 for (j = 0; j < SIZE; j++) {
86 for (j = 0; j < sizeof(long); j++) {
92 for (i = 0; i < SIZE; i++) {
126 return test_harness(testcase, "strlen");