2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
18 Permission is hereby granted, free of charge, to any person obtaining
19 a copy of this software and associated documentation files (the
20 "Software"), to deal in the Software without restriction, including
21 without limitation the rights to use, copy, modify, merge, publish,
22 distribute, sublicense, and/or sell copies of the Software, and to
23 permit persons to whom the Software is furnished to do so, subject to
24 the following conditions:
26 The above copyright notice and this permission notice shall be
27 included in all copies or substantial portions of the Software.
29 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38 #ifdef CLIB_LINUX_KERNEL
39 #include <linux/unistd.h>
45 #include <stdio.h> /* scanf */
48 #include <vppinfra/format.h>
49 #include <vppinfra/random.h>
50 #include <vppinfra/time.h>
52 static int verbose = 0;
53 #define if_verbose(format,args...) \
54 if (verbose) { clib_warning(format, ## args); }
59 clib_time_t clib_time;
60 void *h_mem = clib_mem_alloc (2ULL << 30);
66 clib_time_init (&clib_time);
68 vec_validate (objects, 2000000 - 1);
70 h = mheap_alloc (h_mem, (uword) (2 << 30));
72 before = clib_time_now (&clib_time);
74 for (i = 0; i < vec_len (objects); i++)
76 h = mheap_get_aligned (h, 24 /* size */ ,
78 16 /* align at offset */ , &objects[i]);
81 after = clib_time_now (&clib_time);
83 fformat (stdout, "alloc: %u objects in %.2f seconds, %.2f objects/second\n",
84 vec_len (objects), (after - before),
85 ((f64) vec_len (objects)) / (after - before));
92 test_mheap_main (unformat_input_t * input)
94 int i, j, k, n_iterations;
97 u32 objects_used, really_verbose, n_objects, max_object_size;
98 u32 check_mask, seed, trace, use_vm;
103 /* Validation flags. */
105 #define CHECK_VALIDITY 1
107 #define CHECK_ALIGN 4
112 max_object_size = 100;
118 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
120 if (0 == unformat (input, "iter %d", &n_iterations)
121 && 0 == unformat (input, "count %d", &n_objects)
122 && 0 == unformat (input, "size %d", &max_object_size)
123 && 0 == unformat (input, "seed %d", &seed)
124 && 0 == unformat (input, "print %d", &print_every)
125 && 0 == unformat (input, "validdata %|",
126 &check_mask, CHECK_DATA | CHECK_VALIDITY)
127 && 0 == unformat (input, "valid %|",
128 &check_mask, CHECK_VALIDITY)
129 && 0 == unformat (input, "verbose %=", &really_verbose, 1)
130 && 0 == unformat (input, "trace %=", &trace, 1)
131 && 0 == unformat (input, "vm %=", &use_vm, 1)
132 && 0 == unformat (input, "align %|", &check_mask, CHECK_ALIGN)
133 && 0 == unformat (input, "test1 %|", &check_mask, TEST1))
135 clib_warning ("unknown input `%U'", format_unformat_error, input);
140 /* Zero seed means use default. */
142 seed = random_default_seed ();
144 if (check_mask & TEST1)
150 ("testing %d iterations, %d %saligned objects, max. size %d, seed %d",
151 n_iterations, n_objects, (check_mask & CHECK_ALIGN) ? "randomly " : "un",
152 max_object_size, seed);
154 vec_resize (objects, n_objects);
155 if (vec_bytes (objects) > 0) /* stupid warning be gone */
156 clib_memset (objects, ~0, vec_bytes (objects));
159 /* Allocate initial heap. */
162 max_pow2 (2 * n_objects * max_object_size * sizeof (data[0]));
164 h_mem = clib_mem_alloc (size);
168 h = mheap_alloc (h_mem, size);
172 mheap_trace (h, trace);
174 mh = mheap_header (h);
177 mh->flags &= ~MHEAP_FLAG_DISABLE_VM;
179 mh->flags |= MHEAP_FLAG_DISABLE_VM;
181 if (check_mask & CHECK_VALIDITY)
182 mh->flags |= MHEAP_FLAG_VALIDATE;
184 for (i = 0; i < n_iterations; i++)
188 j = random_u32 (&seed) % vec_len (objects);
189 if (objects[j] != ~0 || i + objects_used < n_iterations)
193 if (objects[j] != ~0)
195 mheap_put (h, objects[j]);
201 uword size, align, align_offset;
203 size = (random_u32 (&seed) % max_object_size) * sizeof (data[0]);
204 align = align_offset = 0;
205 if (check_mask & CHECK_ALIGN)
207 align = 1 << (random_u32 (&seed) % 10);
208 align_offset = round_pow2 (random_u32 (&seed) & (align - 1),
212 h = mheap_get_aligned (h, size, align, align_offset, &objects[j]);
215 ASSERT (0 == ((objects[j] + align_offset) & (align - 1)));
217 ASSERT (objects[j] != ~0);
220 /* Set newly allocated object with test data. */
221 if (check_mask & CHECK_DATA)
225 data = (void *) h + objects[j];
226 len = mheap_len (h, data);
228 ASSERT (size <= mheap_data_bytes (h, objects[j]));
231 for (k = 1; k < len; k++)
232 data[k] = objects[j] + k;
236 /* Verify that all used objects have correct test data. */
239 for (j = 0; j < vec_len (objects); j++)
240 if (objects[j] != ~0)
242 u32 *data = h + objects[j];
244 for (k = 1; k < len; k++)
245 ASSERT (data[k] == objects[j] + k);
248 if (print_every != 0 && i > 0 && (i % print_every) == 0)
249 fformat (stderr, "iteration %d: %U\n", i, format_mheap, h,
254 fformat (stderr, "%U\n", format_mheap, h, really_verbose);
256 clib_mem_free (h_mem);
264 main (int argc, char *argv[])
269 clib_mem_init (0, 3ULL << 30);
271 verbose = (argc > 1);
272 unformat_init_command_line (&i, argv);
273 ret = test_mheap_main (&i);
278 #endif /* CLIB_UNIX */
281 * fd.io coding-style-patch-verification: ON
284 * eval: (c-set-style "gnu")