+++ /dev/null
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <vppinfra/bitmap.h>
-#include <vppinfra/os.h>
-#include <vppinfra/qhash.h>
-#include <vppinfra/random.h>
-#include <vppinfra/time.h>
-
-typedef struct
-{
- u32 n_iter, seed, n_keys, n_hash_keys, verbose;
-
- u32 max_vector;
-
- uword *hash;
-
- uword *keys_in_hash_bitmap;
-
- u32 *qhash;
-
- uword *keys;
-
- uword *lookup_keys;
- uword *lookup_key_indices;
- u32 *lookup_results;
-
- u32 *get_multiple_results;
-
- clib_time_t time;
-
- f64 overflow_fraction, ave_elts;
- f64 get_time, hash_get_time;
- f64 set_time, set_count;
- f64 unset_time, unset_count;
- f64 hash_set_time, hash_unset_time;
-} test_qhash_main_t;
-
-clib_error_t *
-test_qhash_main (unformat_input_t * input)
-{
- clib_error_t *error = 0;
- test_qhash_main_t _tm, *tm = &_tm;
- uword i, iter;
-
- clib_memset (tm, 0, sizeof (tm[0]));
- tm->n_iter = 10;
- tm->seed = 1;
- tm->n_keys = 10;
- tm->max_vector = 1;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "iter %d", &tm->n_iter))
- ;
- else if (unformat (input, "seed %d", &tm->seed))
- ;
- else if (unformat (input, "keys %d", &tm->n_keys))
- ;
- else if (unformat (input, "size %d", &tm->n_hash_keys))
- ;
- else if (unformat (input, "vector %d", &tm->max_vector))
- ;
- else if (unformat (input, "verbose"))
- tm->verbose = 1;
- else
- {
- error = clib_error_create ("unknown input `%U'\n",
- format_unformat_error, input);
- goto done;
- }
- }
-
- if (!tm->seed)
- tm->seed = random_default_seed ();
-
- clib_time_init (&tm->time);
-
- clib_warning ("iter %d, seed %u, keys %d, max vector %d, ",
- tm->n_iter, tm->seed, tm->n_keys, tm->max_vector);
-
- vec_resize (tm->keys, tm->n_keys);
- vec_resize (tm->get_multiple_results, tm->n_keys);
- for (i = 0; i < vec_len (tm->keys); i++)
- tm->keys[i] = random_uword (&tm->seed);
-
- if (!tm->n_hash_keys)
- tm->n_hash_keys = 2 * max_pow2 (tm->n_keys);
- tm->n_hash_keys = clib_max (tm->n_keys, tm->n_hash_keys);
- qhash_resize (tm->qhash, tm->n_hash_keys);
-
- {
- qhash_t *h = qhash_header (tm->qhash);
- int i;
- for (i = 0; i < ARRAY_LEN (h->hash_seeds); i++)
- h->hash_seeds[i] = random_uword (&tm->seed);
- }
-
- vec_resize (tm->lookup_keys, tm->max_vector);
- vec_resize (tm->lookup_key_indices, tm->max_vector);
- vec_resize (tm->lookup_results, tm->max_vector);
-
- for (iter = 0; iter < tm->n_iter; iter++)
- {
- uword *p, j, n, is_set;
-
- n = tm->max_vector;
-
- is_set = random_u32 (&tm->seed) & 1;
- is_set |= hash_elts (tm->hash) < (tm->n_keys / 4);
- if (hash_elts (tm->hash) > (3 * tm->n_keys) / 4)
- is_set = 0;
-
- _vec_len (tm->lookup_keys) = n;
- _vec_len (tm->lookup_key_indices) = n;
- j = 0;
- while (j < n)
- {
- i = random_u32 (&tm->seed) % vec_len (tm->keys);
- if (clib_bitmap_get (tm->keys_in_hash_bitmap, i) != is_set)
- {
- f64 t[2];
- tm->lookup_key_indices[j] = i;
- tm->lookup_keys[j] = tm->keys[i];
- t[0] = clib_time_now (&tm->time);
- if (is_set)
- hash_set (tm->hash, tm->keys[i], i);
- else
- hash_unset (tm->hash, tm->keys[i]);
- t[1] = clib_time_now (&tm->time);
- if (is_set)
- tm->hash_set_time += t[1] - t[0];
- else
- tm->hash_unset_time += t[1] - t[0];
- tm->keys_in_hash_bitmap
- = clib_bitmap_set (tm->keys_in_hash_bitmap, i, is_set);
- j++;
- }
- }
-
- {
- f64 t[2];
-
- if (is_set)
- {
- t[0] = clib_time_now (&tm->time);
- qhash_set_multiple (tm->qhash,
- tm->lookup_keys,
- vec_len (tm->lookup_keys),
- tm->lookup_results);
- t[1] = clib_time_now (&tm->time);
- tm->set_time += t[1] - t[0];
- tm->set_count += vec_len (tm->lookup_keys);
- for (i = 0; i < vec_len (tm->lookup_keys); i++)
- {
- uword r = tm->lookup_results[i];
- *vec_elt_at_index (tm->qhash, r) = tm->lookup_key_indices[i];
- }
- }
- else
- {
- t[0] = clib_time_now (&tm->time);
- qhash_unset_multiple (tm->qhash,
- tm->lookup_keys,
- vec_len (tm->lookup_keys),
- tm->lookup_results);
- t[1] = clib_time_now (&tm->time);
- tm->unset_time += t[1] - t[0];
- tm->unset_count += vec_len (tm->lookup_keys);
-
- for (i = 0; i < vec_len (tm->lookup_keys); i++)
- {
- uword r = tm->lookup_results[i];
- *vec_elt_at_index (tm->qhash, r) = ~0;
- }
- }
- }
-
- if (qhash_elts (tm->qhash) != hash_elts (tm->hash))
- os_panic ();
-
- {
- qhash_t *h;
- uword i, k, l, count;
-
- h = qhash_header (tm->qhash);
-
- for (i = k = 0; k < vec_len (h->hash_key_valid_bitmap); k++)
- i += count_set_bits (h->hash_key_valid_bitmap[k]);
- k = hash_elts (h->overflow_hash);
- l = qhash_elts (tm->qhash);
- if (i + k != l)
- os_panic ();
-
- count = hash_elts (h->overflow_hash);
- for (i = 0; i < (1 << h->log2_hash_size); i++)
- count += tm->qhash[i] != ~0;
- if (count != qhash_elts (tm->qhash))
- os_panic ();
-
- {
- u32 *tmp = 0;
-
- /* *INDENT-OFF* */
- hash_foreach (k, l, h->overflow_hash, ({
- j = qhash_hash_mix (h, k) / QHASH_KEYS_PER_BUCKET;
- vec_validate (tmp, j);
- tmp[j] += 1;
- }));
- /* *INDENT-ON* */
-
- for (k = 0; k < vec_len (tmp); k++)
- {
- if (k >= vec_len (h->overflow_counts))
- os_panic ();
- if (h->overflow_counts[k] != tmp[k])
- os_panic ();
- }
- for (; k < vec_len (h->overflow_counts); k++)
- if (h->overflow_counts[k] != 0)
- os_panic ();
-
- vec_free (tmp);
- }
- }
-
- {
- f64 t[2];
-
- t[0] = clib_time_now (&tm->time);
- qhash_get_multiple (tm->qhash, tm->keys, vec_len (tm->keys),
- tm->get_multiple_results);
- t[1] = clib_time_now (&tm->time);
- tm->get_time += t[1] - t[0];
-
- for (i = 0; i < vec_len (tm->keys); i++)
- {
- u32 r;
-
- t[0] = clib_time_now (&tm->time);
- p = hash_get (tm->hash, tm->keys[i]);
- t[1] = clib_time_now (&tm->time);
- tm->hash_get_time += t[1] - t[0];
-
- r = qhash_get (tm->qhash, tm->keys[i]);
- if (p)
- {
- if (p[0] != i)
- os_panic ();
- if (*vec_elt_at_index (tm->qhash, r) != i)
- os_panic ();
- }
- else
- {
- if (r != ~0)
- os_panic ();
- }
- if (r != tm->get_multiple_results[i])
- os_panic ();
- }
- }
-
- tm->overflow_fraction +=
- ((f64) qhash_n_overflow (tm->qhash) / qhash_elts (tm->qhash));
- tm->ave_elts += qhash_elts (tm->qhash);
- }
-
- fformat (stderr, "%d iter %.6e overflow, %.4f ave. elts\n",
- tm->n_iter,
- tm->overflow_fraction / tm->n_iter, tm->ave_elts / tm->n_iter);
-
- tm->get_time /= tm->n_iter * vec_len (tm->keys);
- tm->hash_get_time /= tm->n_iter * vec_len (tm->keys);
-
- tm->set_time /= tm->set_count;
- tm->unset_time /= tm->unset_count;
- tm->hash_set_time /= tm->set_count;
- tm->hash_unset_time /= tm->unset_count;
-
- fformat (stderr,
- "get/set/unset clocks %.2e %.2e %.2e clib %.2e %.2e %.2e ratio %.2f %.2f %.2f\n",
- tm->get_time * tm->time.clocks_per_second,
- tm->set_time * tm->time.clocks_per_second,
- tm->unset_time * tm->time.clocks_per_second,
- tm->hash_get_time * tm->time.clocks_per_second,
- tm->hash_set_time * tm->time.clocks_per_second,
- tm->hash_unset_time * tm->time.clocks_per_second,
- tm->hash_get_time / tm->get_time, tm->hash_set_time / tm->set_time,
- tm->hash_unset_time / tm->unset_time);
-
-
-done:
- return error;
-}
-
-#ifdef CLIB_UNIX
-int
-main (int argc, char *argv[])
-{
- unformat_input_t i;
- clib_error_t *error;
-
- clib_mem_init (0, 64ULL << 20);
-
- unformat_init_command_line (&i, argv);
- error = test_qhash_main (&i);
- unformat_free (&i);
- if (error)
- {
- clib_error_report (error);
- return 1;
- }
- else
- return 0;
-}
-#endif /* CLIB_UNIX */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
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