Function test_hash_readwrite_perf

dpdk/app/test/test_hash_readwrite.c:353–602

}

static int
test_hash_readwrite_perf(struct perf *perf_results, int use_htm,
							int reader_faster)
{
	unsigned int n;
	int ret;
	int start_coreid;
	uint64_t i, read_cnt;

	const void *next_key;
	void *next_data;
	uint32_t iter;
	int use_jhash = 0;

	uint32_t duplicated_keys = 0;
	uint32_t lost_keys = 0;

	uint64_t start = 0, end = 0;

	__atomic_store_n(&gwrites, 0, __ATOMIC_RELAXED);
	__atomic_store_n(&greads, 0, __ATOMIC_RELAXED);

	__atomic_store_n(&gread_cycles, 0, __ATOMIC_RELAXED);
	__atomic_store_n(&gwrite_cycles, 0, __ATOMIC_RELAXED);

	if (init_params(0, use_htm, 0, use_jhash) != 0)
		goto err;

	/*
	 * Do a readers finish faster or writers finish faster test.
	 * When readers finish faster, we timing the readers, and when writers
	 * finish faster, we timing the writers.
	 * Divided by 10 or 2 is just experimental values to vary the workload
	 * of readers.
	 */
	if (reader_faster) {
		printf("++++++Start perf test: reader++++++++\n");
		read_cnt = TOTAL_INSERT / 10;
	} else {
		printf("++++++Start perf test: writer++++++++\n");
		read_cnt = TOTAL_INSERT / 2;
	}

	/* We first test single thread performance */
	start = rte_rdtsc_precise();
	/* Insert half of the keys */
	for (i = 0; i < TOTAL_INSERT / 2; i++) {
		ret = rte_hash_add_key_data(tbl_rw_test_param.h,
				     tbl_rw_test_param.keys + i,
					(void *)((uintptr_t)i));
		if (ret < 0) {
			printf("Failed to insert half of keys\n");
			goto err_free;
		}
	}
	end = rte_rdtsc_precise() - start;
	perf_results->single_write = end / i;