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/mheap.h>
49 #include <vppinfra/format.h>
50 #include <vppinfra/random.h>
51 #include <vppinfra/time.h>
53 static int verbose = 0;
54 #define if_verbose(format,args...) \
55 if (verbose) { clib_warning(format, ## args); }
60 clib_time_t clib_time;
61 void *h_mem = clib_mem_alloc (2ULL << 30);
67 clib_time_init (&clib_time);
69 vec_validate (objects, 2000000 - 1);
71 h = mheap_alloc (h_mem, (uword) (2 << 30));
73 before = clib_time_now (&clib_time);
75 for (i = 0; i < vec_len (objects); i++)
77 h = mheap_get_aligned (h, 24 /* size */ ,
79 16 /* align at offset */ , &objects[i]);
82 after = clib_time_now (&clib_time);
84 fformat (stdout, "alloc: %u objects in %.2f seconds, %.2f objects/second\n",
85 vec_len (objects), (after - before),
86 ((f64) vec_len (objects)) / (after - before));
93 test_mheap_main (unformat_input_t * input)
95 int i, j, k, n_iterations;
98 u32 objects_used, really_verbose, n_objects, max_object_size;
99 u32 check_mask, seed, trace, use_vm;
104 /* Validation flags. */
106 #define CHECK_VALIDITY 1
108 #define CHECK_ALIGN 4
113 max_object_size = 100;
119 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
121 if (0 == unformat (input, "iter %d", &n_iterations)
122 && 0 == unformat (input, "count %d", &n_objects)
123 && 0 == unformat (input, "size %d", &max_object_size)
124 && 0 == unformat (input, "seed %d", &seed)
125 && 0 == unformat (input, "print %d", &print_every)
126 && 0 == unformat (input, "validdata %|",
127 &check_mask, CHECK_DATA | CHECK_VALIDITY)
128 && 0 == unformat (input, "valid %|",
129 &check_mask, CHECK_VALIDITY)
130 && 0 == unformat (input, "verbose %=", &really_verbose, 1)
131 && 0 == unformat (input, "trace %=", &trace, 1)
132 && 0 == unformat (input, "vm %=", &use_vm, 1)
133 && 0 == unformat (input, "align %|", &check_mask, CHECK_ALIGN)
134 && 0 == unformat (input, "test1 %|", &check_mask, TEST1))
136 clib_warning ("unknown input `%U'", format_unformat_error, input);
141 /* Zero seed means use default. */
143 seed = random_default_seed ();
145 if (check_mask & TEST1)
151 ("testing %d iterations, %d %saligned objects, max. size %d, seed %d",
152 n_iterations, n_objects, (check_mask & CHECK_ALIGN) ? "randomly " : "un",
153 max_object_size, seed);
155 vec_resize (objects, n_objects);
156 if (vec_bytes (objects) > 0) /* stupid warning be gone */
157 clib_memset (objects, ~0, vec_bytes (objects));
160 /* Allocate initial heap. */
163 max_pow2 (2 * n_objects * max_object_size * sizeof (data[0]));
165 h_mem = clib_mem_alloc (size);
169 h = mheap_alloc (h_mem, size);
173 mheap_trace (h, trace);
175 mh = mheap_header (h);
178 mh->flags &= ~MHEAP_FLAG_DISABLE_VM;
180 mh->flags |= MHEAP_FLAG_DISABLE_VM;
182 if (check_mask & CHECK_VALIDITY)
183 mh->flags |= MHEAP_FLAG_VALIDATE;
185 for (i = 0; i < n_iterations; i++)
189 j = random_u32 (&seed) % vec_len (objects);
190 if (objects[j] != ~0 || i + objects_used < n_iterations)
194 if (objects[j] != ~0)
196 mheap_put (h, objects[j]);
202 uword size, align, align_offset;
204 size = (random_u32 (&seed) % max_object_size) * sizeof (data[0]);
205 align = align_offset = 0;
206 if (check_mask & CHECK_ALIGN)
208 align = 1 << (random_u32 (&seed) % 10);
209 align_offset = round_pow2 (random_u32 (&seed) & (align - 1),
213 h = mheap_get_aligned (h, size, align, align_offset, &objects[j]);
216 ASSERT (0 == ((objects[j] + align_offset) & (align - 1)));
218 ASSERT (objects[j] != ~0);
221 /* Set newly allocated object with test data. */
222 if (check_mask & CHECK_DATA)
226 data = (void *) h + objects[j];
227 len = mheap_len (h, data);
229 ASSERT (size <= mheap_data_bytes (h, objects[j]));
232 for (k = 1; k < len; k++)
233 data[k] = objects[j] + k;
237 /* Verify that all used objects have correct test data. */
240 for (j = 0; j < vec_len (objects); j++)
241 if (objects[j] != ~0)
243 u32 *data = h + objects[j];
245 for (k = 1; k < len; k++)
246 ASSERT (data[k] == objects[j] + k);
249 if (print_every != 0 && i > 0 && (i % print_every) == 0)
250 fformat (stderr, "iteration %d: %U\n", i, format_mheap, h,
255 fformat (stderr, "%U\n", format_mheap, h, really_verbose);
257 clib_mem_free (h_mem);
265 main (int argc, char *argv[])
270 clib_mem_init (0, 3ULL << 30);
272 verbose = (argc > 1);
273 unformat_init_command_line (&i, argv);
274 ret = test_mheap_main (&i);
279 #endif /* CLIB_UNIX */
282 * fd.io coding-style-patch-verification: ON
285 * eval: (c-set-style "gnu")