]>
Commit | Line | Data |
---|---|---|
97020474 | 1 | /* Measure memset functions. |
04277e02 | 2 | Copyright (C) 2013-2019 Free Software Foundation, Inc. |
97020474 SP |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
97020474 SP |
18 | |
19 | #define TEST_MAIN | |
2e9e1667 | 20 | #ifndef WIDE |
16f87cfd | 21 | # define TEST_NAME "memset" |
2e9e1667 | 22 | #else |
16f87cfd | 23 | # define TEST_NAME "wmemset" |
3c05dd79 | 24 | # define generic_memset generic_wmemset |
2e9e1667 | 25 | #endif /* WIDE */ |
16f87cfd WD |
26 | #define MIN_PAGE_SIZE 131072 |
27 | #include "bench-string.h" | |
2e9e1667 | 28 | |
29c933fb SP |
29 | #include "json-lib.h" |
30 | ||
3c05dd79 WD |
31 | #ifdef WIDE |
32 | CHAR *generic_wmemset (CHAR *, CHAR, size_t); | |
33 | #else | |
34 | void *generic_memset (void *, int, size_t); | |
35 | #endif | |
97020474 | 36 | |
3c05dd79 | 37 | typedef void *(*proto_t) (void *, int, size_t); |
97020474 | 38 | |
2e9e1667 | 39 | IMPL (MEMSET, 1) |
3c05dd79 | 40 | IMPL (generic_memset, 0) |
97020474 SP |
41 | |
42 | static void | |
29c933fb SP |
43 | do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s, |
44 | int c __attribute ((unused)), size_t n) | |
97020474 | 45 | { |
44558701 WN |
46 | size_t i, iters = INNER_LOOP_ITERS; |
47 | timing_t start, stop, cur; | |
97020474 | 48 | |
44558701 WN |
49 | TIMING_NOW (start); |
50 | for (i = 0; i < iters; ++i) | |
97020474 | 51 | { |
44558701 | 52 | CALL (impl, s, c, n); |
44558701 WN |
53 | } |
54 | TIMING_NOW (stop); | |
97020474 | 55 | |
44558701 | 56 | TIMING_DIFF (cur, start, stop); |
97020474 | 57 | |
29c933fb | 58 | json_element_double (json_ctx, (double) cur / (double) iters); |
97020474 SP |
59 | } |
60 | ||
61 | static void | |
29c933fb | 62 | do_test (json_ctx_t *json_ctx, size_t align, int c, size_t len) |
97020474 | 63 | { |
344303f3 | 64 | align &= 63; |
2e9e1667 | 65 | if ((align + len) * sizeof (CHAR) > page_size) |
97020474 SP |
66 | return; |
67 | ||
29c933fb SP |
68 | json_element_object_begin (json_ctx); |
69 | json_attr_uint (json_ctx, "length", len); | |
70 | json_attr_uint (json_ctx, "alignment", align); | |
71 | json_attr_int (json_ctx, "char", c); | |
72 | json_array_begin (json_ctx, "timings"); | |
97020474 SP |
73 | |
74 | FOR_EACH_IMPL (impl, 0) | |
503c92c3 SP |
75 | { |
76 | do_one_test (json_ctx, impl, (CHAR *) (buf1) + align, c, len); | |
014efdd7 | 77 | alloc_bufs (); |
503c92c3 | 78 | } |
97020474 | 79 | |
29c933fb SP |
80 | json_array_end (json_ctx); |
81 | json_element_object_end (json_ctx); | |
97020474 SP |
82 | } |
83 | ||
84 | int | |
85 | test_main (void) | |
86 | { | |
29c933fb | 87 | json_ctx_t json_ctx; |
97020474 SP |
88 | size_t i; |
89 | int c = 0; | |
90 | ||
91 | test_init (); | |
92 | ||
29c933fb SP |
93 | json_init (&json_ctx, 0, stdout); |
94 | ||
95 | json_document_begin (&json_ctx); | |
96 | json_attr_string (&json_ctx, "timing_type", TIMING_TYPE); | |
97 | ||
98 | json_attr_object_begin (&json_ctx, "functions"); | |
99 | json_attr_object_begin (&json_ctx, TEST_NAME); | |
100 | json_attr_string (&json_ctx, "bench-variant", ""); | |
101 | ||
102 | json_array_begin (&json_ctx, "ifuncs"); | |
97020474 | 103 | FOR_EACH_IMPL (impl, 0) |
29c933fb SP |
104 | json_element_string (&json_ctx, impl->name); |
105 | json_array_end (&json_ctx); | |
106 | ||
107 | json_array_begin (&json_ctx, "results"); | |
97020474 | 108 | |
97020474 | 109 | for (c = -65; c <= 130; c += 65) |
97020474 SP |
110 | { |
111 | for (i = 0; i < 18; ++i) | |
29c933fb | 112 | do_test (&json_ctx, 0, c, 1 << i); |
97020474 SP |
113 | for (i = 1; i < 32; ++i) |
114 | { | |
29c933fb | 115 | do_test (&json_ctx, i, c, i); |
97020474 | 116 | if (i & (i - 1)) |
29c933fb | 117 | do_test (&json_ctx, 0, c, i); |
97020474 | 118 | } |
71ae8647 AZ |
119 | for (i = 32; i < 512; i+=32) |
120 | { | |
29c933fb SP |
121 | do_test (&json_ctx, 0, c, i); |
122 | do_test (&json_ctx, i, c, i); | |
71ae8647 | 123 | } |
29c933fb SP |
124 | do_test (&json_ctx, 1, c, 14); |
125 | do_test (&json_ctx, 3, c, 1024); | |
126 | do_test (&json_ctx, 4, c, 64); | |
127 | do_test (&json_ctx, 2, c, 25); | |
97020474 | 128 | } |
344303f3 L |
129 | for (i = 33; i <= 256; i += 4) |
130 | { | |
29c933fb SP |
131 | do_test (&json_ctx, 0, c, 32 * i); |
132 | do_test (&json_ctx, i, c, 32 * i); | |
344303f3 | 133 | } |
97020474 | 134 | |
29c933fb SP |
135 | json_array_end (&json_ctx); |
136 | json_attr_object_end (&json_ctx); | |
137 | json_attr_object_end (&json_ctx); | |
138 | json_document_end (&json_ctx); | |
139 | ||
97020474 SP |
140 | return ret; |
141 | } | |
142 | ||
b598e134 | 143 | #include <support/test-driver.c> |
3c05dd79 WD |
144 | |
145 | #define libc_hidden_builtin_def(X) | |
146 | #define libc_hidden_def(X) | |
147 | #define libc_hidden_weak(X) | |
148 | #define weak_alias(X,Y) | |
149 | #ifndef WIDE | |
150 | # undef MEMSET | |
151 | # define MEMSET generic_memset | |
152 | # include <string/memset.c> | |
153 | #else | |
154 | # define WMEMSET generic_wmemset | |
155 | # include <wcsmbs/wmemset.c> | |
156 | #endif |