2 Copyright (c) 2013 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <vppinfra/pfhash.h>
18 #include <vppinfra/format.h>
19 #include <vppinfra/random.h>
21 #if defined(CLIB_HAVE_VEC128) && ! defined (__ALTIVEC__)
26 random_aligned_string (u32 * seed, uword len)
28 u8 * alphabet = (u8 *) "abcdefghijklmnopqrstuvwxyz";
32 vec_resize_aligned (s, len, 16);
33 for (i = 0; i < len; i++)
34 s[i] = alphabet[random_u32 (seed) % 26];
41 int test_pfhash_main (unformat_input_t * input)
43 u32 seed = 0xdeaddabe;
49 u32 sizes[3] = {16, 8, 4}, this_size, size;
51 pfhash_t _rec, * p = &_rec;
53 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
55 if (unformat (input, "seed %d", &seed))
57 else if (unformat (input, "niter %d", &niter))
59 else if (unformat (input, "nkeys %d", &nkeys))
61 else if (unformat (input, "nbuckets %d", &nbuckets))
63 else if (unformat (input, "verbose %d", &verbose))
65 else if (unformat (input, "verbose"))
68 clib_error ("unknown input `%U'", format_unformat_error, input);
71 vec_validate (keys, nkeys-1);
73 for (i = 0; i < nkeys; i++)
78 keys[i] = random_aligned_string (&seed, 16);
79 for (j = 0; j < (i - 1); j++)
81 /* Make sure we don't have a dup key in the min key size */
82 for (k = 0; k < 4; k++)
84 if (keys[i][k] != keys[j][k])
94 /* test 8 byte key, 8 byte value case separately */
96 for (size = 8; size < 9; size++)
100 fformat (stdout, "%d-byte key 8 byte value test\n", this_size);
102 pfhash_init (p, "test", 8 /* key size */ , 8 /* value size */,
105 for (iter = 0; iter < niter; iter++)
108 for (i = 0; i < nkeys; i++)
110 bucket = (i % nbuckets)+1;
111 pfhash_set (p, bucket, keys[i],
112 (void *) (u64) 0x100000000ULL + i+1);
115 for (i = 0; i < nkeys; i++)
117 bucket = (i % nbuckets)+1;
118 if (pfhash_get (p, bucket, keys[i])
119 != (u64) 0x100000000ULL + i+1)
121 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
122 (void) pfhash_get (p, bucket , keys[i]);
126 /* test inline functions */
127 for (i = 0; i < nkeys; i++)
130 u64 value = 0xdeadbeef;
131 bucket = (i % nbuckets)+1;
133 pfhash_prefetch_bucket (p, bucket);
134 bucket_contents = pfhash_read_bucket_prefetch_kv (p, bucket);
136 value = pfhash_search_kv_8v8 (p, bucket_contents,
138 if (value != (u64) 0x100000000ULL + i+1)
139 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
143 fformat (stdout, "%U\n", format_pfhash, p, verbose > 1);
145 for (i = 0; i < nkeys; i++)
147 bucket = (i % nbuckets)+1;
148 pfhash_unset (p, bucket, keys[i]);
151 for (i = 0; i < nkeys; i++)
153 bucket = (i % nbuckets)+1;
154 if (pfhash_get (p, bucket , keys[i]) != (u64)~0)
156 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
157 (void) pfhash_get (p, bucket , keys[i]);
160 /* test inline functions */
161 for (i = 0; i < nkeys; i++)
164 u64 value = 0xdeadbeef;
165 bucket = (i % nbuckets)+1;
167 pfhash_prefetch_bucket (p, bucket);
168 bucket_contents = pfhash_read_bucket_prefetch_kv (p, bucket);
170 value = pfhash_search_kv_8v8 (p, bucket_contents,
173 if (value != (u64)~0)
174 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
180 /* test other cases */
182 for (size = 0; size < ARRAY_LEN(sizes); size++)
184 this_size = sizes[size];
186 fformat (stdout, "%d-byte key test\n", this_size);
188 pfhash_init (p, "test", this_size, 4 /* value size */, nbuckets+1);
190 for (iter = 0; iter < niter; iter++)
193 for (i = 0; i < nkeys; i++)
195 bucket = (i % nbuckets)+1;
196 pfhash_set (p, bucket, keys[i], (void *)(u64)i+1);
199 for (i = 0; i < nkeys; i++)
201 bucket = (i % nbuckets)+1;
202 if (pfhash_get (p, bucket , keys[i]) != i+1)
204 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
205 (void) pfhash_get (p, bucket , keys[i]);
209 /* test inline functions */
210 for (i = 0; i < nkeys; i++)
213 u32 value = 0xdeadbeef;
214 bucket = (i % nbuckets)+1;
216 pfhash_prefetch_bucket (p, bucket);
217 bucket_contents = pfhash_read_bucket_prefetch_kv (p, bucket);
221 value = pfhash_search_kv_16 (p, bucket_contents, (u32x4 *) keys[i]);
224 value = pfhash_search_kv_8 (p, bucket_contents, (u64 *) keys[i]);
227 value = pfhash_search_kv_4 (p, bucket_contents, (u32 *) keys[i]);
232 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
236 fformat (stdout, "%U\n", format_pfhash, p, verbose > 1);
238 for (i = 0; i < nkeys; i++)
240 bucket = (i % nbuckets)+1;
241 pfhash_unset (p, bucket, keys[i]);
244 for (i = 0; i < nkeys; i++)
246 bucket = (i % nbuckets)+1;
247 if (pfhash_get (p, bucket , keys[i]) != (u64)~0)
249 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
250 (void) pfhash_get (p, bucket , keys[i]);
253 /* test inline functions */
254 for (i = 0; i < nkeys; i++)
257 u32 value = 0xdeadbeef;
258 bucket = (i % nbuckets)+1;
260 pfhash_prefetch_bucket (p, bucket);
261 bucket_contents = pfhash_read_bucket_prefetch_kv (p, bucket);
265 value = pfhash_search_kv_16 (p, bucket_contents, (u32x4 *) keys[i]);
268 value = pfhash_search_kv_8 (p, bucket_contents, (u64 *) keys[i]);
271 value = pfhash_search_kv_4 (p, bucket_contents, (u32 *) keys[i]);
274 if (value != (u32)~0)
275 clib_warning ("key %d bucket %d lookup FAIL\n", i, bucket);
284 int test_pfhash_main (unformat_input_t * input)
286 clib_warning ("MMX unit not available");
292 int main (int argc, char * argv[])
297 unformat_init_command_line (&i, argv);
298 ret = test_pfhash_main (&i);
303 #endif /* CLIB_UNIX */