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/*
* Copyright (c) 2017 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.
*/
__thread int thread_id = 0;
#include <vppinfra/time.h>
#include <vppinfra/cache.h>
#include <vppinfra/error.h>
#include <vppinfra/heap.h>
#include <vppinfra/format.h>
#include <vppinfra/pool.h>
#include <vppinfra/error.h>
#include <vppinfra/hash.h>
#include <vppinfra/cache.h>
#define os_get_cpu_number() (thread_id)
#include <vppinfra/cuckoo_8_8.h>
#include <vppinfra/cuckoo_template.h>
#include <vppinfra/cuckoo_template.c>
#include <vppinfra/bihash_8_8.h>
#include <vppinfra/bihash_template.h>
#include <vppinfra/bihash_template.c>
#include <pthread.h>
#define MAX_THREADS 255
typedef struct
{
void *tm;
int thread_idx;
u64 nlookups;
} thread_data_t;
typedef struct
{
u64 deadline;
u64 seed;
u32 nbuckets;
u32 nitems;
u32 runtime;
int verbose;
int non_random_keys;
int nthreads;
int search_iter;
uword *key_hash;
u64 *keys;
CVT (clib_cuckoo) ch;
BVT (clib_bihash) bh;
clib_time_t clib_time;
u64 *key_add_del_sequence;
u8 *key_op_sequence;
u64 *key_search_sequence[MAX_THREADS];
unformat_input_t *input;
u64 nadds;
u64 ndels;
pthread_t bwriter_thread;
pthread_t breader_threads[MAX_THREADS];
pthread_t cwriter_thread;
pthread_t creader_threads[MAX_THREADS];
thread_data_t wthread_data;
thread_data_t rthread_data[MAX_THREADS];
} test_main_t;
test_main_t test_main;
uword
vl (void *v)
{
return vec_len (v);
}
#define w_thread(x, guts) \
void *x##writer_thread (void *v) \
{ \
test_main_t *tm = v; \
uword counter = 0; \
u64 nadds = 0; \
u64 ndels = 0; \
u64 deadline = tm->deadline; \
do \
{ \
for (counter = 0; counter < vec_len (tm->key_add_del_sequence); \
++counter) \
{ \
u64 idx = tm->key_add_del_sequence[counter]; \
u8 op = tm->key_op_sequence[counter]; \
if (op) \
{ \
++nadds; \
} \
else \
{ \
++ndels; \
} \
guts; \
if (clib_cpu_time_now () > deadline) \
{ \
break; \
} \
} \
} \
while (clib_cpu_time_now () < deadline); \
tm->nadds = nadds; \
tm->ndels = ndels; \
return NULL; \
}
/* *INDENT-OFF* */
w_thread (b, {
BVT (clib_bihash_kv) kv;
kv.key = tm->keys[idx];
kv.value = *hash_get (tm->key_hash, kv.key);
BV (clib_bihash_add_del) (&tm->bh, &kv, op);
});
/* *INDENT-ON* */
/* *INDENT-OFF* */
w_thread (c, {
CVT (clib_cuckoo_kv) kv;
kv.key = tm->keys[idx];
kv.value = *hash_get (tm->key_hash, kv.key);
CV (clib_cuckoo_add_del) (&tm->ch, &kv, op, 0);
});
/* *INDENT-ON* */
#define r_thread(x, guts) \
void *x##reader_thread (void *v) \
{ \
thread_data_t *data = v; \
thread_id = data->thread_idx; \
test_main_t *tm = data->tm; \
uword thread_idx = data->thread_idx; \
u64 *idx; \
uword nlookups = 0; \
u64 deadline = tm->deadline; \
do \
{ \
vec_foreach (idx, tm->key_search_sequence[thread_idx]) \
{ \
guts; \
++nlookups; \
if (clib_cpu_time_now () > deadline) \
{ \
break; \
} \
} \
} \
while (clib_cpu_time_now () < deadline); \
data->nlookups = nlookups; \
return NULL; \
}
/* *INDENT-OFF* */
r_thread (c, {
CVT (clib_cuckoo_kv) kv;
kv.key = tm->keys[*idx];
kv.value = *hash_get (tm->key_hash, kv.key);
CV (clib_cuckoo_search) (&tm->ch, &kv, &kv);
});
/* *INDENT-ON* */
/* *INDENT-OFF* */
r_thread (b, {
BVT (clib_bihash_kv) kv;
kv.key = tm->keys[*idx];
kv.value = *hash_get (tm->key_hash, kv.key);
BV (clib_bihash_search) (&tm->bh, &kv, &kv);
});
/* *INDENT-ON* */
#define run_threads(x) \
do \
{ \
\
before = clib_time_now (&tm->clib_time); \
tm->deadline = clib_cpu_time_now () + \
tm->runtime * tm->clib_time.clocks_per_second; \
fformat (stdout, #x "-> Start threads..., runtime is %llu second(s)\n", \
(long long unsigned)tm->runtime); \
\
/* \
fformat (stdout, #x "-> Writer thread only...\n"); \
if (0 != \
pthread_create (&tm->x##writer_thread, NULL, x##writer_thread, tm)) \
{ \
perror ("pthread_create()"); \
abort (); \
} \
\
if (0 != pthread_join (tm->x##writer_thread, NULL)) \
{ \
perror ("pthread_join()"); \
abort (); \
} \
\
delta = clib_time_now (&tm->clib_time) - before; \
fformat (stdout, #x "-> %wu adds, %wu dels in %.6f seconds\n", \
tm->nadds, tm->ndels, delta); \
tm->nadds = 0; \
tm->ndels = 0; \
*/ \
\
fformat (stdout, #x "-> Writer + %d readers\n", tm->nthreads); \
before = clib_time_now (&tm->clib_time); \
tm->deadline = clib_cpu_time_now () + \
tm->runtime * tm->clib_time.clocks_per_second; \
if (0 != \
pthread_create (&tm->x##writer_thread, NULL, x##writer_thread, tm)) \
{ \
perror ("pthread_create()"); \
abort (); \
} \
\
for (i = 0; i < tm->nthreads; i++) \
{ \
tm->rthread_data[i].nlookups = 0; \
if (0 != pthread_create (&tm->x##reader_threads[i], NULL, \
x##reader_thread, &tm->rthread_data[i])) \
{ \
perror ("pthread_create()"); \
abort (); \
} \
} \
\
if (0 != pthread_join (tm->x##writer_thread, NULL)) \
{ \
perror ("pthread_join()"); \
abort (); \
} \
\
for (i = 0; i < tm->nthreads; i++) \
{ \
if (0 != pthread_join (tm->x##reader_threads[i], NULL)) \
{ \
perror ("pthread_join()"); \
abort (); \
} \
} \
\
delta = clib_time_now (&tm->clib_time) - before; \
\
total_searches = 0; \
for (i = 0; i < tm->nthreads; ++i) \
{ \
u64 nlookups = tm->rthread_data[i].nlookups; \
fformat (stdout, #x "-> Thread #%d: %u searches\n", i, nlookups); \
total_searches += nlookups; \
} \
\
if (delta > 0) \
{ \
ops = (tm->nadds + tm->ndels) / (f64)delta; \
fformat (stdout, #x "-> %.f add/dels per second\n", ops); \
sps = ((f64)total_searches) / delta; \
fformat (stdout, #x "-> %.f searches per second\n", sps); \
} \
\
fformat (stdout, \
#x "-> %wu adds, %wu dels, %lld searches in %.6f seconds\n", \
tm->nadds, tm->ndels, total_searches, delta); \
} \
while (0);
static void
cb (CVT (clib_cuckoo) * h, void *ctx)
{
fformat (stdout, "Garbage callback called...\n");
}
static clib_error_t *
test_cuckoo_bihash (test_main_t * tm)
{
int i;
uword *p;
uword total_searches;
f64 before, delta;
f64 ops = 0, sps = 0;
f64 bops = 0, bsps = 0;
f64 cops = 0, csps = 0;
CVT (clib_cuckoo) * ch;
BVT (clib_bihash) * bh;
ch = &tm->ch;
bh = &tm->bh;
CV (clib_cuckoo_init) (ch, "test", 1, cb, NULL);
BV (clib_bihash_init) (bh, (char *) "test", tm->nbuckets, 256 << 20);
fformat (stdout, "Pick %lld unique %s keys...\n", tm->nitems,
tm->non_random_keys ? "non-random" : "random");
for (i = 0; i < tm->nitems; i++)
{
u64 rndkey;
if (tm->non_random_keys == 0)
{
again:
rndkey = random_u64 (&tm->seed);
p = hash_get (tm->key_hash, rndkey);
if (p)
goto again;
}
else
rndkey = (u64) (i + 1) << 16;
hash_set (tm->key_hash, rndkey, i + 1);
vec_add1 (tm->keys, rndkey);
int j;
for (j = 0; j < tm->nthreads; ++j)
{
u64 *x = tm->key_search_sequence[j];
vec_add1 (x, random_u64 (&tm->seed) % tm->nitems);
tm->key_search_sequence[j] = x;
}
vec_add1 (tm->key_add_del_sequence,
random_u64 (&tm->seed) % tm->nitems);
vec_add1 (tm->key_op_sequence, (rndkey % 10 < 8) ? 1 : 0);
}
int thread_counter = 0;
tm->wthread_data.tm = tm;
tm->wthread_data.thread_idx = thread_counter;
for (i = 0; i < tm->nthreads; ++i)
{
tm->rthread_data[i].tm = tm;
tm->rthread_data[i].thread_idx = thread_counter;
tm->rthread_data[i].nlookups = 0;
++thread_counter;
}
int iter;
for (iter = 0; iter < tm->search_iter; ++iter)
{
fformat (stdout, "Bihash test #%d\n", iter);
run_threads (b);
bops = ops;
bsps = sps;
fformat (stdout, "%U", BV (format_bihash), bh, 0);
fformat (stdout, "Cuckoo test #%d\n", iter);
run_threads (c);
cops = ops;
csps = sps;
fformat (stdout, "%U", CV (format_cuckoo), ch, 0);
fformat (stdout,
"Bihash add/del speed is %.2f%% of cuckoo add/del speed\n",
bops / cops * 100);
fformat (stdout,
"Bihash search speed is %.2f%% of cuckoo search speed\n",
bsps / csps * 100);
}
return 0;
}
clib_error_t *
test_cuckoo_bihash_main (test_main_t * tm)
{
unformat_input_t *i = tm->input;
clib_error_t *error;
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
if (unformat (i, "seed %u", &tm->seed))
;
else if (unformat (i, "nbuckets %d", &tm->nbuckets))
;
else if (unformat (i, "non-random-keys"))
tm->non_random_keys = 1;
else if (unformat (i, "nitems %d", &tm->nitems))
;
else if (unformat (i, "search_iter %d", &tm->search_iter))
;
else if (unformat (i, "verbose %d", &tm->verbose))
;
else if (unformat (i, "runtime %d", &tm->runtime))
;
else if (unformat (i, "nthreads %d", &tm->nthreads))
;
else if (unformat (i, "verbose"))
tm->verbose = 1;
else
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, i);
}
error = test_cuckoo_bihash (tm);
return error;
}
#ifdef CLIB_UNIX
int
main (int argc, char *argv[])
{
unformat_input_t i;
clib_error_t *error;
test_main_t *tm = &test_main;
clib_memset (&test_main, 0, sizeof (test_main));
clib_mem_init (0, 3ULL << 30);
tm->input = &i;
tm->seed = 0xdeaddabe;
tm->nbuckets = 2;
tm->nitems = 5;
tm->verbose = 1;
tm->nthreads = 1;
clib_time_init (&tm->clib_time);
tm->runtime = 1;
tm->search_iter = 1;
tm->key_hash = hash_create (0, sizeof (uword));
unformat_init_command_line (&i, argv);
error = test_cuckoo_bihash_main (tm);
unformat_free (&i);
if (error)
{
clib_error_report (error);
return 1;
}
return 0;
}
#endif /* CLIB_UNIX */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
