test/hash: add test for read/write concurrency
This commits add a new test case for testing read/write concurrency. Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit is contained in:
Yipeng Wang
Thomas Monjalon
parent
f6f46b613e
commit
0eb3726ebc
@ -113,6 +113,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_perf.c
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SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_functions.c
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SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_scaling.c
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SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_multiwriter.c
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SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_readwrite.c
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SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm.c
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SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm_perf.c
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637
test/test/test_hash_readwrite.c
Normal file
637
test/test/test_hash_readwrite.c
Normal file
@ -0,0 +1,637 @@
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Intel Corporation
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*/
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#include <inttypes.h>
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#include <locale.h>
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#include <rte_cycles.h>
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#include <rte_hash.h>
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#include <rte_hash_crc.h>
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#include <rte_jhash.h>
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#include <rte_launch.h>
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#include <rte_malloc.h>
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#include <rte_random.h>
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#include <rte_spinlock.h>
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#include "test.h"
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#define RTE_RWTEST_FAIL 0
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#define TOTAL_ENTRY (16*1024*1024)
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#define TOTAL_INSERT (15*1024*1024)
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#define NUM_TEST 3
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unsigned int core_cnt[NUM_TEST] = {2, 4, 8};
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struct perf {
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uint32_t single_read;
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uint32_t single_write;
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uint32_t read_only[NUM_TEST];
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uint32_t write_only[NUM_TEST];
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uint32_t read_write_r[NUM_TEST];
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uint32_t read_write_w[NUM_TEST];
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};
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static struct perf htm_results, non_htm_results;
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struct {
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uint32_t *keys;
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uint32_t *found;
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uint32_t num_insert;
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uint32_t rounded_tot_insert;
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struct rte_hash *h;
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} tbl_rw_test_param;
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static rte_atomic64_t gcycles;
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static rte_atomic64_t ginsertions;
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static rte_atomic64_t gread_cycles;
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static rte_atomic64_t gwrite_cycles;
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static rte_atomic64_t greads;
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static rte_atomic64_t gwrites;
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static int
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test_hash_readwrite_worker(__attribute__((unused)) void *arg)
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{
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uint64_t i, offset;
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uint32_t lcore_id = rte_lcore_id();
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uint64_t begin, cycles;
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int ret;
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offset = (lcore_id - rte_get_master_lcore())
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* tbl_rw_test_param.num_insert;
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printf("Core #%d inserting and reading %d: %'"PRId64" - %'"PRId64"\n",
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lcore_id, tbl_rw_test_param.num_insert,
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offset, offset + tbl_rw_test_param.num_insert);
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begin = rte_rdtsc_precise();
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for (i = offset; i < offset + tbl_rw_test_param.num_insert; i++) {
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if (rte_hash_lookup(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i) > 0)
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break;
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ret = rte_hash_add_key(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i);
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if (ret < 0)
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break;
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if (rte_hash_lookup(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i) != ret)
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break;
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}
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cycles = rte_rdtsc_precise() - begin;
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rte_atomic64_add(&gcycles, cycles);
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rte_atomic64_add(&ginsertions, i - offset);
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for (; i < offset + tbl_rw_test_param.num_insert; i++)
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tbl_rw_test_param.keys[i] = RTE_RWTEST_FAIL;
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return 0;
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}
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static int
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init_params(int use_htm, int use_jhash)
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{
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unsigned int i;
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uint32_t *keys = NULL;
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uint32_t *found = NULL;
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struct rte_hash *handle;
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struct rte_hash_parameters hash_params = {
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.entries = TOTAL_ENTRY,
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.key_len = sizeof(uint32_t),
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.hash_func_init_val = 0,
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.socket_id = rte_socket_id(),
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};
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if (use_jhash)
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hash_params.hash_func = rte_jhash;
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else
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hash_params.hash_func = rte_hash_crc;
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if (use_htm)
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hash_params.extra_flag =
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RTE_HASH_EXTRA_FLAGS_TRANS_MEM_SUPPORT |
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RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY;
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else
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hash_params.extra_flag =
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RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY;
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hash_params.name = "tests";
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handle = rte_hash_create(&hash_params);
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if (handle == NULL) {
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printf("hash creation failed");
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return -1;
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}
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tbl_rw_test_param.h = handle;
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keys = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_ENTRY, 0);
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if (keys == NULL) {
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printf("RTE_MALLOC failed\n");
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goto err;
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}
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found = rte_zmalloc(NULL, sizeof(uint32_t) * TOTAL_ENTRY, 0);
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if (found == NULL) {
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printf("RTE_ZMALLOC failed\n");
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goto err;
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}
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tbl_rw_test_param.keys = keys;
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tbl_rw_test_param.found = found;
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for (i = 0; i < TOTAL_ENTRY; i++)
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keys[i] = i;
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return 0;
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err:
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rte_free(keys);
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rte_hash_free(handle);
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return -1;
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}
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static int
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test_hash_readwrite_functional(int use_htm)
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{
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unsigned int i;
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const void *next_key;
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void *next_data;
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uint32_t iter = 0;
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uint32_t duplicated_keys = 0;
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uint32_t lost_keys = 0;
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int use_jhash = 1;
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rte_atomic64_init(&gcycles);
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rte_atomic64_clear(&gcycles);
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rte_atomic64_init(&ginsertions);
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rte_atomic64_clear(&ginsertions);
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if (init_params(use_htm, use_jhash) != 0)
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goto err;
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tbl_rw_test_param.num_insert =
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TOTAL_INSERT / rte_lcore_count();
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tbl_rw_test_param.rounded_tot_insert =
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tbl_rw_test_param.num_insert
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* rte_lcore_count();
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printf("++++++++Start function tests:+++++++++\n");
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/* Fire all threads. */
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rte_eal_mp_remote_launch(test_hash_readwrite_worker,
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NULL, CALL_MASTER);
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rte_eal_mp_wait_lcore();
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while (rte_hash_iterate(tbl_rw_test_param.h, &next_key,
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&next_data, &iter) >= 0) {
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/* Search for the key in the list of keys added .*/
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i = *(const uint32_t *)next_key;
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tbl_rw_test_param.found[i]++;
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}
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for (i = 0; i < tbl_rw_test_param.rounded_tot_insert; i++) {
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if (tbl_rw_test_param.keys[i] != RTE_RWTEST_FAIL) {
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if (tbl_rw_test_param.found[i] > 1) {
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duplicated_keys++;
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break;
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}
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if (tbl_rw_test_param.found[i] == 0) {
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lost_keys++;
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printf("key %d is lost\n", i);
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break;
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}
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}
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}
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if (duplicated_keys > 0) {
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printf("%d key duplicated\n", duplicated_keys);
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goto err_free;
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}
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if (lost_keys > 0) {
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printf("%d key lost\n", lost_keys);
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goto err_free;
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}
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printf("No key corrupted during read-write test.\n");
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unsigned long long int cycles_per_insertion =
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rte_atomic64_read(&gcycles) /
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rte_atomic64_read(&ginsertions);
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printf("cycles per insertion and lookup: %llu\n", cycles_per_insertion);
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rte_free(tbl_rw_test_param.found);
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rte_free(tbl_rw_test_param.keys);
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rte_hash_free(tbl_rw_test_param.h);
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printf("+++++++++Complete function tests+++++++++\n");
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return 0;
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err_free:
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rte_free(tbl_rw_test_param.found);
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rte_free(tbl_rw_test_param.keys);
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rte_hash_free(tbl_rw_test_param.h);
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err:
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return -1;
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}
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static int
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test_rw_reader(__attribute__((unused)) void *arg)
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{
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uint64_t i;
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uint64_t begin, cycles;
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uint64_t read_cnt = (uint64_t)((uintptr_t)arg);
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begin = rte_rdtsc_precise();
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for (i = 0; i < read_cnt; i++) {
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void *data;
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rte_hash_lookup_data(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i,
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&data);
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if (i != (uint64_t)(uintptr_t)data) {
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printf("lookup find wrong value %"PRIu64","
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"%"PRIu64"\n", i,
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(uint64_t)(uintptr_t)data);
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break;
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}
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}
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cycles = rte_rdtsc_precise() - begin;
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rte_atomic64_add(&gread_cycles, cycles);
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rte_atomic64_add(&greads, i);
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return 0;
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}
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static int
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test_rw_writer(__attribute__((unused)) void *arg)
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{
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uint64_t i;
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uint32_t lcore_id = rte_lcore_id();
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uint64_t begin, cycles;
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int ret;
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uint64_t start_coreid = (uint64_t)(uintptr_t)arg;
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uint64_t offset;
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offset = TOTAL_INSERT / 2 + (lcore_id - start_coreid)
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* tbl_rw_test_param.num_insert;
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begin = rte_rdtsc_precise();
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for (i = offset; i < offset + tbl_rw_test_param.num_insert; i++) {
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ret = rte_hash_add_key_data(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i,
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(void *)((uintptr_t)i));
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if (ret < 0) {
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printf("writer failed %"PRIu64"\n", i);
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break;
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}
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}
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cycles = rte_rdtsc_precise() - begin;
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rte_atomic64_add(&gwrite_cycles, cycles);
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rte_atomic64_add(&gwrites, tbl_rw_test_param.num_insert);
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return 0;
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}
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static int
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test_hash_readwrite_perf(struct perf *perf_results, int use_htm,
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int reader_faster)
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{
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unsigned int n;
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int ret;
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int start_coreid;
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uint64_t i, read_cnt;
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const void *next_key;
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void *next_data;
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uint32_t iter = 0;
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int use_jhash = 0;
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uint32_t duplicated_keys = 0;
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uint32_t lost_keys = 0;
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uint64_t start = 0, end = 0;
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rte_atomic64_init(&greads);
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rte_atomic64_init(&gwrites);
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rte_atomic64_clear(&gwrites);
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rte_atomic64_clear(&greads);
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rte_atomic64_init(&gread_cycles);
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rte_atomic64_clear(&gread_cycles);
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rte_atomic64_init(&gwrite_cycles);
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rte_atomic64_clear(&gwrite_cycles);
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if (init_params(use_htm, use_jhash) != 0)
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goto err;
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/*
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* Do a readers finish faster or writers finish faster test.
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* When readers finish faster, we timing the readers, and when writers
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* finish faster, we timing the writers.
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* Divided by 10 or 2 is just experimental values to vary the workload
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* of readers.
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*/
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if (reader_faster) {
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printf("++++++Start perf test: reader++++++++\n");
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read_cnt = TOTAL_INSERT / 10;
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} else {
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printf("++++++Start perf test: writer++++++++\n");
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read_cnt = TOTAL_INSERT / 2;
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}
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/* We first test single thread performance */
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start = rte_rdtsc_precise();
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/* Insert half of the keys */
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for (i = 0; i < TOTAL_INSERT / 2; i++) {
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ret = rte_hash_add_key_data(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i,
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(void *)((uintptr_t)i));
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if (ret < 0) {
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printf("Failed to insert half of keys\n");
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goto err_free;
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}
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}
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end = rte_rdtsc_precise() - start;
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perf_results->single_write = end / i;
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start = rte_rdtsc_precise();
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for (i = 0; i < read_cnt; i++) {
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void *data;
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rte_hash_lookup_data(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i,
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&data);
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if (i != (uint64_t)(uintptr_t)data) {
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printf("lookup find wrong value"
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" %"PRIu64",%"PRIu64"\n", i,
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(uint64_t)(uintptr_t)data);
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break;
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}
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}
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end = rte_rdtsc_precise() - start;
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perf_results->single_read = end / i;
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for (n = 0; n < NUM_TEST; n++) {
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unsigned int tot_lcore = rte_lcore_count();
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if (tot_lcore < core_cnt[n] * 2 + 1)
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goto finish;
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rte_atomic64_clear(&greads);
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rte_atomic64_clear(&gread_cycles);
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rte_atomic64_clear(&gwrites);
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rte_atomic64_clear(&gwrite_cycles);
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rte_hash_reset(tbl_rw_test_param.h);
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tbl_rw_test_param.num_insert = TOTAL_INSERT / 2 / core_cnt[n];
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tbl_rw_test_param.rounded_tot_insert = TOTAL_INSERT / 2 +
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tbl_rw_test_param.num_insert *
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core_cnt[n];
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for (i = 0; i < TOTAL_INSERT / 2; i++) {
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ret = rte_hash_add_key_data(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i,
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(void *)((uintptr_t)i));
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if (ret < 0) {
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printf("Failed to insert half of keys\n");
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goto err_free;
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}
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}
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/* Then test multiple thread case but only all reads or
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* all writes
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*/
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/* Test only reader cases */
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for (i = 1; i <= core_cnt[n]; i++)
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rte_eal_remote_launch(test_rw_reader,
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(void *)(uintptr_t)read_cnt, i);
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rte_eal_mp_wait_lcore();
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start_coreid = i;
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/* Test only writer cases */
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for (; i <= core_cnt[n] * 2; i++)
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rte_eal_remote_launch(test_rw_writer,
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(void *)((uintptr_t)start_coreid), i);
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rte_eal_mp_wait_lcore();
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if (reader_faster) {
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unsigned long long int cycles_per_insertion =
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rte_atomic64_read(&gread_cycles) /
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rte_atomic64_read(&greads);
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perf_results->read_only[n] = cycles_per_insertion;
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printf("Reader only: cycles per lookup: %llu\n",
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cycles_per_insertion);
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}
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else {
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unsigned long long int cycles_per_insertion =
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rte_atomic64_read(&gwrite_cycles) /
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rte_atomic64_read(&gwrites);
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perf_results->write_only[n] = cycles_per_insertion;
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printf("Writer only: cycles per writes: %llu\n",
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cycles_per_insertion);
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}
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rte_atomic64_clear(&greads);
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rte_atomic64_clear(&gread_cycles);
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rte_atomic64_clear(&gwrites);
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rte_atomic64_clear(&gwrite_cycles);
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rte_hash_reset(tbl_rw_test_param.h);
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for (i = 0; i < TOTAL_INSERT / 2; i++) {
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ret = rte_hash_add_key_data(tbl_rw_test_param.h,
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tbl_rw_test_param.keys + i,
|
||||
(void *)((uintptr_t)i));
|
||||
if (ret < 0) {
|
||||
printf("Failed to insert half of keys\n");
|
||||
goto err_free;
|
||||
}
|
||||
}
|
||||
|
||||
start_coreid = core_cnt[n] + 1;
|
||||
|
||||
if (reader_faster) {
|
||||
for (i = core_cnt[n] + 1; i <= core_cnt[n] * 2; i++)
|
||||
rte_eal_remote_launch(test_rw_writer,
|
||||
(void *)((uintptr_t)start_coreid), i);
|
||||
for (i = 1; i <= core_cnt[n]; i++)
|
||||
rte_eal_remote_launch(test_rw_reader,
|
||||
(void *)(uintptr_t)read_cnt, i);
|
||||
} else {
|
||||
for (i = 1; i <= core_cnt[n]; i++)
|
||||
rte_eal_remote_launch(test_rw_reader,
|
||||
(void *)(uintptr_t)read_cnt, i);
|
||||
for (; i <= core_cnt[n] * 2; i++)
|
||||
rte_eal_remote_launch(test_rw_writer,
|
||||
(void *)((uintptr_t)start_coreid), i);
|
||||
}
|
||||
|
||||
rte_eal_mp_wait_lcore();
|
||||
|
||||
while (rte_hash_iterate(tbl_rw_test_param.h,
|
||||
&next_key, &next_data, &iter) >= 0) {
|
||||
/* Search for the key in the list of keys added .*/
|
||||
i = *(const uint32_t *)next_key;
|
||||
tbl_rw_test_param.found[i]++;
|
||||
}
|
||||
|
||||
for (i = 0; i < tbl_rw_test_param.rounded_tot_insert; i++) {
|
||||
if (tbl_rw_test_param.keys[i] != RTE_RWTEST_FAIL) {
|
||||
if (tbl_rw_test_param.found[i] > 1) {
|
||||
duplicated_keys++;
|
||||
break;
|
||||
}
|
||||
if (tbl_rw_test_param.found[i] == 0) {
|
||||
lost_keys++;
|
||||
printf("key %"PRIu64" is lost\n", i);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (duplicated_keys > 0) {
|
||||
printf("%d key duplicated\n", duplicated_keys);
|
||||
goto err_free;
|
||||
}
|
||||
|
||||
if (lost_keys > 0) {
|
||||
printf("%d key lost\n", lost_keys);
|
||||
goto err_free;
|
||||
}
|
||||
|
||||
printf("No key corrupted during read-write test.\n");
|
||||
|
||||
if (reader_faster) {
|
||||
unsigned long long int cycles_per_insertion =
|
||||
rte_atomic64_read(&gread_cycles) /
|
||||
rte_atomic64_read(&greads);
|
||||
perf_results->read_write_r[n] = cycles_per_insertion;
|
||||
printf("Read-write cycles per lookup: %llu\n",
|
||||
cycles_per_insertion);
|
||||
}
|
||||
|
||||
else {
|
||||
unsigned long long int cycles_per_insertion =
|
||||
rte_atomic64_read(&gwrite_cycles) /
|
||||
rte_atomic64_read(&gwrites);
|
||||
perf_results->read_write_w[n] = cycles_per_insertion;
|
||||
printf("Read-write cycles per writes: %llu\n",
|
||||
cycles_per_insertion);
|
||||
}
|
||||
}
|
||||
|
||||
finish:
|
||||
rte_free(tbl_rw_test_param.found);
|
||||
rte_free(tbl_rw_test_param.keys);
|
||||
rte_hash_free(tbl_rw_test_param.h);
|
||||
return 0;
|
||||
|
||||
err_free:
|
||||
rte_free(tbl_rw_test_param.found);
|
||||
rte_free(tbl_rw_test_param.keys);
|
||||
rte_hash_free(tbl_rw_test_param.h);
|
||||
|
||||
err:
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int
|
||||
test_hash_readwrite_main(void)
|
||||
{
|
||||
/*
|
||||
* Variables used to choose different tests.
|
||||
* use_htm indicates if hardware transactional memory should be used.
|
||||
* reader_faster indicates if the reader threads should finish earlier
|
||||
* than writer threads. This is to timing either reader threads or
|
||||
* writer threads for performance numbers.
|
||||
*/
|
||||
int use_htm, reader_faster;
|
||||
|
||||
if (rte_lcore_count() == 1) {
|
||||
printf("More than one lcore is required "
|
||||
"to do read write test\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
setlocale(LC_NUMERIC, "");
|
||||
|
||||
if (rte_tm_supported()) {
|
||||
printf("Hardware transactional memory (lock elision) "
|
||||
"is supported\n");
|
||||
|
||||
printf("Test read-write with Hardware transactional memory\n");
|
||||
|
||||
use_htm = 1;
|
||||
if (test_hash_readwrite_functional(use_htm) < 0)
|
||||
return -1;
|
||||
|
||||
reader_faster = 1;
|
||||
if (test_hash_readwrite_perf(&htm_results, use_htm,
|
||||
reader_faster) < 0)
|
||||
return -1;
|
||||
|
||||
reader_faster = 0;
|
||||
if (test_hash_readwrite_perf(&htm_results, use_htm,
|
||||
reader_faster) < 0)
|
||||
return -1;
|
||||
} else {
|
||||
printf("Hardware transactional memory (lock elision) "
|
||||
"is NOT supported\n");
|
||||
}
|
||||
|
||||
printf("Test read-write without Hardware transactional memory\n");
|
||||
use_htm = 0;
|
||||
if (test_hash_readwrite_functional(use_htm) < 0)
|
||||
return -1;
|
||||
reader_faster = 1;
|
||||
if (test_hash_readwrite_perf(&non_htm_results, use_htm,
|
||||
reader_faster) < 0)
|
||||
return -1;
|
||||
reader_faster = 0;
|
||||
if (test_hash_readwrite_perf(&non_htm_results, use_htm,
|
||||
reader_faster) < 0)
|
||||
return -1;
|
||||
|
||||
printf("Results summary:\n");
|
||||
|
||||
int i;
|
||||
|
||||
printf("single read: %u\n", htm_results.single_read);
|
||||
printf("single write: %u\n", htm_results.single_write);
|
||||
for (i = 0; i < NUM_TEST; i++) {
|
||||
printf("core_cnt: %u\n", core_cnt[i]);
|
||||
printf("HTM:\n");
|
||||
printf("read only: %u\n", htm_results.read_only[i]);
|
||||
printf("write only: %u\n", htm_results.write_only[i]);
|
||||
printf("read-write read: %u\n", htm_results.read_write_r[i]);
|
||||
printf("read-write write: %u\n", htm_results.read_write_w[i]);
|
||||
|
||||
printf("non HTM:\n");
|
||||
printf("read only: %u\n", non_htm_results.read_only[i]);
|
||||
printf("write only: %u\n", non_htm_results.write_only[i]);
|
||||
printf("read-write read: %u\n",
|
||||
non_htm_results.read_write_r[i]);
|
||||
printf("read-write write: %u\n",
|
||||
non_htm_results.read_write_w[i]);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
REGISTER_TEST_COMMAND(hash_readwrite_autotest, test_hash_readwrite_main);
|
||||
Loading…
Reference in New Issue
Block a user