1 | /* Measure strcat functions. |
2 | Copyright (C) 2013-2024 Free Software Foundation, Inc. |
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 |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #define TEST_MAIN |
20 | #ifndef WIDE |
21 | # define TEST_NAME "strcat" |
22 | #else |
23 | # define TEST_NAME "wcscat" |
24 | # define generic_strcat generic_wcscat |
25 | #endif /* WIDE */ |
26 | #include "bench-string.h" |
27 | |
28 | #define BIG_CHAR MAX_CHAR |
29 | |
30 | #ifndef WIDE |
31 | # define sfmt "s" |
32 | # define SMALL_CHAR 127 |
33 | #else |
34 | # define sfmt "ls" |
35 | # define SMALL_CHAR 1273 |
36 | #endif /* WIDE */ |
37 | |
38 | #include "json-lib.h" |
39 | |
40 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); |
41 | |
42 | CHAR * |
43 | generic_strcat (CHAR *dst, const CHAR *src) |
44 | { |
45 | STRCPY (dst + STRLEN (dst), src); |
46 | return dst; |
47 | } |
48 | |
49 | IMPL (STRCAT, 1) |
50 | IMPL (generic_strcat, 0) |
51 | |
52 | static void |
53 | do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *dst, const CHAR *src) |
54 | { |
55 | size_t k = STRLEN (dst), i, iters = INNER_LOOP_ITERS_LARGE / CHARBYTES; |
56 | timing_t start, stop, cur; |
57 | |
58 | if (CALL (impl, dst, src) != dst) |
59 | { |
60 | error (status: 0, errnum: 0, format: "Wrong result in function %s %p %p" , impl->name, |
61 | CALL (impl, dst, src), dst); |
62 | ret = 1; |
63 | return; |
64 | } |
65 | |
66 | if (STRCMP (dst + k, src) != 0) |
67 | { |
68 | error (status: 0, errnum: 0, |
69 | format: "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"" , |
70 | impl->name, dst, src); |
71 | ret = 1; |
72 | return; |
73 | } |
74 | |
75 | TIMING_NOW (start); |
76 | for (i = 0; i < iters; ++i) |
77 | { |
78 | dst[k] = '\0'; |
79 | CALL (impl, dst, src); |
80 | } |
81 | TIMING_NOW (stop); |
82 | |
83 | TIMING_DIFF (cur, start, stop); |
84 | |
85 | json_element_double (ctx: json_ctx, d: (double) cur / (double) iters); |
86 | } |
87 | |
88 | static void |
89 | do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len1, |
90 | size_t len2, int max_char) |
91 | { |
92 | size_t i; |
93 | CHAR *s1, *s2; |
94 | |
95 | align1 &= 7; |
96 | if ((align1 + len1) * sizeof (CHAR) >= page_size) |
97 | return; |
98 | |
99 | align2 &= 7; |
100 | if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size) |
101 | return; |
102 | |
103 | s1 = (CHAR *) (buf1) + align1; |
104 | s2 = (CHAR *) (buf2) + align2; |
105 | |
106 | for (i = 0; i < len1; ++i) |
107 | s1[i] = 32 + 23 * i % (max_char - 32); |
108 | s1[len1] = '\0'; |
109 | |
110 | for (i = 0; i < len2; i++) |
111 | s2[i] = 32 + 23 * i % (max_char - 32); |
112 | |
113 | json_element_object_begin (ctx: json_ctx); |
114 | json_attr_uint (ctx: json_ctx, name: "align1" , d: align1); |
115 | json_attr_uint (ctx: json_ctx, name: "align2" , d: align2); |
116 | json_attr_uint (ctx: json_ctx, name: "len1" , d: len1); |
117 | json_attr_uint (ctx: json_ctx, name: "len2" , d: len2); |
118 | json_attr_uint (ctx: json_ctx, name: "max_char" , d: max_char); |
119 | |
120 | json_array_begin (ctx: json_ctx, name: "timings" ); |
121 | |
122 | FOR_EACH_IMPL (impl, 0) |
123 | { |
124 | s2[len2] = '\0'; |
125 | do_one_test (json_ctx, impl, dst: s2, src: s1); |
126 | } |
127 | |
128 | json_array_end (ctx: json_ctx); |
129 | json_element_object_end (ctx: json_ctx); |
130 | } |
131 | |
132 | int |
133 | test_main (void) |
134 | { |
135 | json_ctx_t json_ctx; |
136 | size_t i; |
137 | |
138 | test_init (); |
139 | |
140 | test_init (); |
141 | |
142 | json_init (ctx: &json_ctx, indent_level: 0, stdout); |
143 | |
144 | json_document_begin (ctx: &json_ctx); |
145 | json_attr_string (ctx: &json_ctx, name: "timing_type" , TIMING_TYPE); |
146 | |
147 | json_attr_object_begin (ctx: &json_ctx, name: "functions" ); |
148 | json_attr_object_begin (ctx: &json_ctx, TEST_NAME); |
149 | json_attr_string (ctx: &json_ctx, name: "bench-variant" , s: "" ); |
150 | |
151 | json_array_begin (ctx: &json_ctx, name: "ifuncs" ); |
152 | FOR_EACH_IMPL (impl, 0) |
153 | json_element_string (ctx: &json_ctx, s: impl->name); |
154 | json_array_end (ctx: &json_ctx); |
155 | |
156 | json_array_begin (ctx: &json_ctx, name: "results" ); |
157 | |
158 | for (i = 0; i < 16; ++i) |
159 | { |
160 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: i, len2: i, SMALL_CHAR); |
161 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: i, len2: i, BIG_CHAR); |
162 | do_test (json_ctx: &json_ctx, align1: 0, align2: i, len1: i, len2: i, SMALL_CHAR); |
163 | do_test (json_ctx: &json_ctx, align1: i, align2: 0, len1: i, len2: i, BIG_CHAR); |
164 | } |
165 | |
166 | for (i = 1; i < 8; ++i) |
167 | { |
168 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: 8 << i, len2: 8 << i, SMALL_CHAR); |
169 | do_test (json_ctx: &json_ctx, align1: 8 - i, align2: 2 * i, len1: 8 << i, len2: 8 << i, SMALL_CHAR); |
170 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: 8 << i, len2: 2 << i, SMALL_CHAR); |
171 | do_test (json_ctx: &json_ctx, align1: 8 - i, align2: 2 * i, len1: 8 << i, len2: 2 << i, SMALL_CHAR); |
172 | } |
173 | |
174 | for (i = 1; i < 8; ++i) |
175 | { |
176 | do_test (json_ctx: &json_ctx, align1: i, align2: 2 * i, len1: 8 << i, len2: 1, SMALL_CHAR); |
177 | do_test (json_ctx: &json_ctx, align1: 2 * i, align2: i, len1: 8 << i, len2: 1, BIG_CHAR); |
178 | do_test (json_ctx: &json_ctx, align1: i, align2: i, len1: 8 << i, len2: 10, SMALL_CHAR); |
179 | do_test (json_ctx: &json_ctx, align1: i, align2: i, len1: 8 << i, len2: 10, BIG_CHAR); |
180 | } |
181 | |
182 | for (i = 32; i < 256; i += 32) |
183 | { |
184 | do_test (json_ctx: &json_ctx, align1: 1, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
185 | do_test (json_ctx: &json_ctx, align1: 0, align2: i, len1: i, len2: 31, SMALL_CHAR); |
186 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
187 | do_test (json_ctx: &json_ctx, align1: i, align2: i, len1: i, len2: 31, SMALL_CHAR); |
188 | } |
189 | |
190 | for (; i < 512; i += 64) |
191 | { |
192 | do_test (json_ctx: &json_ctx, align1: 1, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
193 | do_test (json_ctx: &json_ctx, align1: 0, align2: i, len1: i, len2: 31, SMALL_CHAR); |
194 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
195 | do_test (json_ctx: &json_ctx, align1: i, align2: i, len1: i, len2: 31, SMALL_CHAR); |
196 | } |
197 | |
198 | for (; i < 1024; i += 128) |
199 | { |
200 | do_test (json_ctx: &json_ctx, align1: 1, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
201 | do_test (json_ctx: &json_ctx, align1: 0, align2: i, len1: i, len2: 31, SMALL_CHAR); |
202 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
203 | do_test (json_ctx: &json_ctx, align1: i, align2: i, len1: i, len2: 31, SMALL_CHAR); |
204 | } |
205 | |
206 | for (; i < 2048; i += 256) |
207 | { |
208 | do_test (json_ctx: &json_ctx, align1: 1, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
209 | do_test (json_ctx: &json_ctx, align1: 0, align2: i, len1: i, len2: 31, SMALL_CHAR); |
210 | do_test (json_ctx: &json_ctx, align1: 0, align2: 0, len1: i, len2: 31, SMALL_CHAR); |
211 | do_test (json_ctx: &json_ctx, align1: i, align2: i, len1: i, len2: 31, SMALL_CHAR); |
212 | } |
213 | |
214 | json_array_end (ctx: &json_ctx); |
215 | json_attr_object_end (ctx: &json_ctx); |
216 | json_attr_object_end (ctx: &json_ctx); |
217 | json_document_end (ctx: &json_ctx); |
218 | |
219 | return ret; |
220 | } |
221 | |
222 | #include <support/test-driver.c> |
223 | |