@@ -82,7 +82,7 @@ SRCS-y += test_memcpy.c
SRCS-y += test_memcpy_perf.c
SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash.c
-SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_perf.c
+SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_perf_new.c
SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_functions.c
SRCS-$(CONFIG_RTE_LIBRTE_HASH) += test_hash_scaling.c
@@ -1147,6 +1147,63 @@ test_hash_creation_with_good_parameters(void)
return 0;
}
+#define ITERATIONS 50
+/*
+ * Test to see the average table utilization (entries added/max entries)
+ * before hitting a random entry that cannot be added
+ */
+static int test_average_table_utilization(void)
+{
+ struct rte_hash *handle;
+ void *simple_key;
+ unsigned i, j, no_space = 0;
+ double added_keys_until_no_space = 0;
+ int ret;
+
+ ut_params.entries = 1 << 20;
+ ut_params.name = "test_average_utilization";
+ ut_params.hash_func = rte_hash_crc;
+ handle = rte_hash_create(&ut_params);
+ RETURN_IF_ERROR(handle == NULL, "hash creation failed");
+
+ simple_key = rte_zmalloc(NULL, ut_params.key_len, 0);
+
+ for (j = 0; j < ITERATIONS; j++) {
+ while (!no_space) {
+ for (i = 0; i < ut_params.key_len; i++)
+ ((uint8_t *) simple_key)[i] = rte_rand() % 255;
+
+ ret = rte_hash_add_key(handle, simple_key);
+ print_key_info("Add", simple_key, ret);
+
+ if (ret == -ENOSPC) {
+ if (-ENOENT != rte_hash_lookup(handle, simple_key))
+ printf("Found key that should not be present\n");
+ no_space = 1;
+ } else {
+ if (ret < 0)
+ rte_free(simple_key);
+ RETURN_IF_ERROR(ret < 0, "failed to add key (ret=%d)", ret);
+ added_keys_until_no_space++;
+ }
+ }
+ no_space = 0;
+
+ /* Reset the table */
+ rte_hash_free(handle);
+ rte_hash_create(&ut_params);
+ }
+
+ const unsigned average_keys_added = added_keys_until_no_space / ITERATIONS;
+
+ printf("Average table utilization = %.2f%% (%u/%u)\n",
+ ((double) average_keys_added / ut_params.entries * 100),
+ average_keys_added, ut_params.entries);
+ rte_hash_free(handle);
+
+ return 0;
+}
+
static uint8_t key[16] = {0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b,
@@ -1405,6 +1462,8 @@ test_hash(void)
return -1;
if (test_hash_creation_with_good_parameters() < 0)
return -1;
+ if (test_average_table_utilization() < 0)
+ return -1;
run_hash_func_tests();
deleted file mode 100644
@@ -1,702 +0,0 @@
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <errno.h>
-#include <sys/queue.h>
-
-#include <rte_common.h>
-#include <rte_lcore.h>
-#include <rte_malloc.h>
-#include <rte_cycles.h>
-#include <rte_random.h>
-#include <rte_memory.h>
-#include <rte_memzone.h>
-#include <rte_eal.h>
-#include <rte_ip.h>
-#include <rte_string_fns.h>
-
-#include "test.h"
-
-#include <rte_hash.h>
-#include <rte_fbk_hash.h>
-#include <rte_jhash.h>
-#include <rte_hash_crc.h>
-
-/* Types of hash table performance test that can be performed */
-enum hash_test_t {
- ADD_ON_EMPTY, /*< Add keys to empty table */
- DELETE_ON_EMPTY, /*< Attempt to delete keys from empty table */
- LOOKUP_ON_EMPTY, /*< Attempt to find keys in an empty table */
- ADD_UPDATE, /*< Add/update keys in a full table */
- DELETE, /*< Delete keys from a full table */
- LOOKUP /*< Find keys in a full table */
-};
-
-/* Function type for hash table operations. */
-typedef int32_t (*hash_operation)(const struct rte_hash *h, const void *key);
-
-/* Structure to hold parameters used to run a hash table performance test */
-struct tbl_perf_test_params {
- enum hash_test_t test_type;
- uint32_t num_iterations;
- uint32_t entries;
- uint32_t bucket_entries;
- uint32_t key_len;
- rte_hash_function hash_func;
- uint32_t hash_func_init_val;
-};
-
-#define ITERATIONS 10000
-#define LOCAL_FBK_HASH_ENTRIES_MAX (1 << 15)
-
-/*******************************************************************************
- * Hash table performance test configuration section.
- */
-struct tbl_perf_test_params tbl_perf_params[] =
-{
-/* Small table, add */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_ON_EMPTY, 1024, 1024, 1, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 1, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 1, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 1, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 64, rte_jhash, 0},
-/* Small table, update */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 64, rte_jhash, 0},
-/* Small table, lookup */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ LOOKUP, ITERATIONS, 1024, 1, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 1, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 1, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 1, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 64, rte_jhash, 0},
-/* Big table, add */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 16, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 32, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 48, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 64, rte_jhash, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 64, rte_jhash, 0},
-/* Big table, update */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 16, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 32, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 48, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 64, rte_jhash, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 64, rte_jhash, 0},
-/* Big table, lookup */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ LOOKUP, ITERATIONS, 1048576, 1, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 16, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 1, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 32, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 1, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 48, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 1, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 64, rte_jhash, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 64, rte_jhash, 0},
-/* Small table, add */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_ON_EMPTY, 1024, 1024, 1, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 1, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 1, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 1, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 2, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 4, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 8, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1024, 1024, 16, 64, rte_hash_crc, 0},
-/* Small table, update */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 1, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 2, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 4, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 8, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1024, 16, 64, rte_hash_crc, 0},
-/* Small table, lookup */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ LOOKUP, ITERATIONS, 1024, 1, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 1, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 1, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 1, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 2, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 4, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 8, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1024, 16, 64, rte_hash_crc, 0},
-/* Big table, add */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 16, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 32, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 48, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 1, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 2, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 4, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 8, 64, rte_hash_crc, 0},
-{ ADD_ON_EMPTY, 1048576, 1048576, 16, 64, rte_hash_crc, 0},
-/* Big table, update */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 16, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 32, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 48, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 1, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 2, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 4, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 8, 64, rte_hash_crc, 0},
-{ ADD_UPDATE, ITERATIONS, 1048576, 16, 64, rte_hash_crc, 0},
-/* Big table, lookup */
-/* Test type | Iterations | Entries | BucketSize | KeyLen | HashFunc | InitVal */
-{ LOOKUP, ITERATIONS, 1048576, 1, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 16, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 1, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 32, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 1, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 48, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 1, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 2, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 4, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 8, 64, rte_hash_crc, 0},
-{ LOOKUP, ITERATIONS, 1048576, 16, 64, rte_hash_crc, 0},
-};
-
-/******************************************************************************/
-
-/*
- * Check condition and return an error if true. Assumes that "handle" is the
- * name of the hash structure pointer to be freed.
- */
-#define RETURN_IF_ERROR(cond, str, ...) do { \
- if (cond) { \
- printf("ERROR line %d: " str "\n", __LINE__, ##__VA_ARGS__); \
- if (handle) rte_hash_free(handle); \
- return -1; \
- } \
-} while(0)
-
-#define RETURN_IF_ERROR_FBK(cond, str, ...) do { \
- if (cond) { \
- printf("ERROR line %d: " str "\n", __LINE__, ##__VA_ARGS__); \
- if (handle) rte_fbk_hash_free(handle); \
- rte_free(keys); \
- return -1; \
- } \
-} while(0)
-
-/*
- * Find average of array of numbers.
- */
-static double
-get_avg(const uint32_t *array, uint32_t size)
-{
- double sum = 0;
- unsigned i;
- for (i = 0; i < size; i++)
- sum += array[i];
- return sum / (double)size;
-}
-
-/*
- * To help print out name of hash functions.
- */
-static const char *get_hash_name(rte_hash_function f)
-{
- if (f == rte_jhash)
- return "jhash";
-
- if (f == rte_hash_crc)
- return "rte_hash_crc";
-
- return "UnknownHash";
-}
-
-/*
- * Do a single performance test, of one type of operation.
- *
- * @param h
- * hash table to run test on
- * @param func
- * function to call (add, delete or lookup function)
- * @param avg_occupancy
- * The average number of entries in each bucket of the hash table
- * @param invalid_pos_count
- * The amount of errors (e.g. due to a full bucket).
- * @return
- * The average number of ticks per hash function call. A negative number
- * signifies failure.
- */
-static double
-run_single_tbl_perf_test(const struct rte_hash *h, hash_operation func,
- const struct tbl_perf_test_params *params, double *avg_occupancy,
- uint32_t *invalid_pos_count)
-{
- uint64_t begin, end, ticks = 0;
- uint8_t *key = NULL;
- uint32_t *bucket_occupancies = NULL;
- uint32_t num_buckets, i, j;
- int32_t pos;
-
- /* Initialise */
- num_buckets = params->entries / params->bucket_entries;
- key = rte_zmalloc("hash key",
- params->key_len * sizeof(uint8_t), 16);
- if (key == NULL)
- return -1;
-
- bucket_occupancies = rte_calloc("bucket occupancies",
- num_buckets, sizeof(uint32_t), 16);
- if (bucket_occupancies == NULL) {
- rte_free(key);
- return -1;
- }
-
- ticks = 0;
- *invalid_pos_count = 0;
-
- for (i = 0; i < params->num_iterations; i++) {
- /* Prepare inputs for the current iteration */
- for (j = 0; j < params->key_len; j++)
- key[j] = (uint8_t) rte_rand();
-
- /* Perform operation, and measure time it takes */
- begin = rte_rdtsc();
- pos = func(h, key);
- end = rte_rdtsc();
- ticks += end - begin;
-
- /* Other work per iteration */
- if (pos < 0)
- *invalid_pos_count += 1;
- else
- bucket_occupancies[pos / params->bucket_entries]++;
- }
- *avg_occupancy = get_avg(bucket_occupancies, num_buckets);
-
- rte_free(bucket_occupancies);
- rte_free(key);
-
- return (double)ticks / params->num_iterations;
-}
-
-/*
- * To help print out what tests are being done.
- */
-static const char *
-get_tbl_perf_test_desc(enum hash_test_t type)
-{
- switch (type){
- case ADD_ON_EMPTY: return "Add on Empty";
- case DELETE_ON_EMPTY: return "Delete on Empty";
- case LOOKUP_ON_EMPTY: return "Lookup on Empty";
- case ADD_UPDATE: return "Add Update";
- case DELETE: return "Delete";
- case LOOKUP: return "Lookup";
- default: return "UNKNOWN";
- }
-}
-
-/*
- * Run a hash table performance test based on params.
- */
-static int
-run_tbl_perf_test(struct tbl_perf_test_params *params)
-{
- static unsigned calledCount = 5;
- struct rte_hash_parameters hash_params = {
- .entries = params->entries,
- .bucket_entries = params->bucket_entries,
- .key_len = params->key_len,
- .hash_func = params->hash_func,
- .hash_func_init_val = params->hash_func_init_val,
- .socket_id = rte_socket_id(),
- };
- struct rte_hash *handle;
- double avg_occupancy = 0, ticks = 0;
- uint32_t num_iterations, invalid_pos;
- char name[RTE_HASH_NAMESIZE];
- char hashname[RTE_HASH_NAMESIZE];
-
- snprintf(name, 32, "test%u", calledCount++);
- hash_params.name = name;
-
- handle = rte_hash_create(&hash_params);
- RETURN_IF_ERROR(handle == NULL, "hash creation failed");
-
- switch (params->test_type){
- case ADD_ON_EMPTY:
- ticks = run_single_tbl_perf_test(handle, rte_hash_add_key,
- params, &avg_occupancy, &invalid_pos);
- break;
- case DELETE_ON_EMPTY:
- ticks = run_single_tbl_perf_test(handle, rte_hash_del_key,
- params, &avg_occupancy, &invalid_pos);
- break;
- case LOOKUP_ON_EMPTY:
- ticks = run_single_tbl_perf_test(handle, rte_hash_lookup,
- params, &avg_occupancy, &invalid_pos);
- break;
- case ADD_UPDATE:
- num_iterations = params->num_iterations;
- params->num_iterations = params->entries;
- run_single_tbl_perf_test(handle, rte_hash_add_key, params,
- &avg_occupancy, &invalid_pos);
- params->num_iterations = num_iterations;
- ticks = run_single_tbl_perf_test(handle, rte_hash_add_key,
- params, &avg_occupancy, &invalid_pos);
- break;
- case DELETE:
- num_iterations = params->num_iterations;
- params->num_iterations = params->entries;
- run_single_tbl_perf_test(handle, rte_hash_add_key, params,
- &avg_occupancy, &invalid_pos);
-
- params->num_iterations = num_iterations;
- ticks = run_single_tbl_perf_test(handle, rte_hash_del_key,
- params, &avg_occupancy, &invalid_pos);
- break;
- case LOOKUP:
- num_iterations = params->num_iterations;
- params->num_iterations = params->entries;
- run_single_tbl_perf_test(handle, rte_hash_add_key, params,
- &avg_occupancy, &invalid_pos);
-
- params->num_iterations = num_iterations;
- ticks = run_single_tbl_perf_test(handle, rte_hash_lookup,
- params, &avg_occupancy, &invalid_pos);
- break;
- default: return -1;
- }
-
- snprintf(hashname, RTE_HASH_NAMESIZE, "%s", get_hash_name(params->hash_func));
-
- printf("%-12s, %-15s, %-16u, %-7u, %-18u, %-8u, %-19.2f, %.2f\n",
- hashname,
- get_tbl_perf_test_desc(params->test_type),
- (unsigned) params->key_len,
- (unsigned) params->entries,
- (unsigned) params->bucket_entries,
- (unsigned) invalid_pos,
- avg_occupancy,
- ticks
- );
-
- /* Free */
- rte_hash_free(handle);
- return 0;
-}
-
-/*
- * Run all hash table performance tests.
- */
-static int run_all_tbl_perf_tests(void)
-{
- unsigned i;
-
- printf(" *** Hash table performance test results ***\n");
- printf("Hash Func. , Operation , Key size (bytes), Entries, "
- "Entries per bucket, Errors , Avg. bucket entries, Ticks/Op.\n");
-
- /* Loop through every combination of test parameters */
- for (i = 0;
- i < sizeof(tbl_perf_params) / sizeof(struct tbl_perf_test_params);
- i++) {
-
- /* Perform test */
- if (run_tbl_perf_test(&tbl_perf_params[i]) < 0)
- return -1;
- }
- return 0;
-}
-
-/* Control operation of performance testing of fbk hash. */
-#define LOAD_FACTOR 0.667 /* How full to make the hash table. */
-#define TEST_SIZE 1000000 /* How many operations to time. */
-#define TEST_ITERATIONS 30 /* How many measurements to take. */
-#define ENTRIES (1 << 15) /* How many entries. */
-
-static int
-fbk_hash_perf_test(void)
-{
- struct rte_fbk_hash_params params = {
- .name = "fbk_hash_test",
- .entries = ENTRIES,
- .entries_per_bucket = 4,
- .socket_id = rte_socket_id(),
- };
- struct rte_fbk_hash_table *handle = NULL;
- uint32_t *keys = NULL;
- unsigned indexes[TEST_SIZE];
- uint64_t lookup_time = 0;
- unsigned added = 0;
- unsigned value = 0;
- unsigned i, j;
-
- handle = rte_fbk_hash_create(¶ms);
- RETURN_IF_ERROR_FBK(handle == NULL, "fbk hash creation failed");
-
- keys = rte_zmalloc(NULL, ENTRIES * sizeof(*keys), 0);
- RETURN_IF_ERROR_FBK(keys == NULL,
- "fbk hash: memory allocation for key store failed");
-
- /* Generate random keys and values. */
- for (i = 0; i < ENTRIES; i++) {
- uint32_t key = (uint32_t)rte_rand();
- key = ((uint64_t)key << 32) | (uint64_t)rte_rand();
- uint16_t val = (uint16_t)rte_rand();
-
- if (rte_fbk_hash_add_key(handle, key, val) == 0) {
- keys[added] = key;
- added++;
- }
- if (added > (LOAD_FACTOR * ENTRIES)) {
- break;
- }
- }
-
- for (i = 0; i < TEST_ITERATIONS; i++) {
- uint64_t begin;
- uint64_t end;
-
- /* Generate random indexes into keys[] array. */
- for (j = 0; j < TEST_SIZE; j++) {
- indexes[j] = rte_rand() % added;
- }
-
- begin = rte_rdtsc();
- /* Do lookups */
- for (j = 0; j < TEST_SIZE; j++) {
- value += rte_fbk_hash_lookup(handle, keys[indexes[j]]);
- }
- end = rte_rdtsc();
- lookup_time += (double)(end - begin);
- }
-
- printf("\n\n *** FBK Hash function performance test results ***\n");
- /*
- * The use of the 'value' variable ensures that the hash lookup is not
- * being optimised out by the compiler.
- */
- if (value != 0)
- printf("Number of ticks per lookup = %g\n",
- (double)lookup_time /
- ((double)TEST_ITERATIONS * (double)TEST_SIZE));
-
- rte_fbk_hash_free(handle);
-
- return 0;
-}
-
-/*
- * Do all unit and performance tests.
- */
-static int
-test_hash_perf(void)
-{
- if (run_all_tbl_perf_tests() < 0)
- return -1;
-
- if (fbk_hash_perf_test() < 0)
- return -1;
- return 0;
-}
-
-static struct test_command hash_perf_cmd = {
- .command = "hash_perf_autotest",
- .callback = test_hash_perf,
-};
-REGISTER_TEST_COMMAND(hash_perf_cmd);
new file mode 100644
@@ -0,0 +1,560 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+
+#include <rte_lcore.h>
+#include <rte_cycles.h>
+#include <rte_malloc.h>
+#include <rte_hash.h>
+#include <rte_hash_crc.h>
+#include <rte_jhash.h>
+#include <rte_fbk_hash.h>
+#include <rte_random.h>
+#include <rte_string_fns.h>
+
+#include "test.h"
+
+#define KEYS_TO_ADD (1 << 18)
+#define MAX_ENTRIES (KEYS_TO_ADD * 4) /* 25% table utilization */
+#define NUM_LOOKUPS (KEYS_TO_ADD * 10) /* Loop among keys added, several times */
+#define BUCKET_SIZE 4
+#define NUM_BUCKETS (MAX_ENTRIES / BUCKET_SIZE)
+#define MAX_KEYSIZE 64
+#define NUM_KEYSIZES 10
+#define NUM_SHUFFLES 10
+#define BURST_SIZE 16
+
+enum operations {
+ ADD = 0,
+ LOOKUP,
+ LOOKUP_MULTI,
+ DELETE,
+ NUM_OPERATIONS
+};
+
+static uint32_t hashtest_key_lens[] = {
+ 4, 8, 16, 32, 48, 64, /* standard key sizes */
+ 9, /* IPv4 SRC + DST + protocol, unpadded */
+ 13, /* IPv4 5-tuple, unpadded */
+ 37, /* IPv6 5-tuple, unpadded */
+ 40 /* IPv6 5-tuple, padded to 8-byte boundary */
+};
+struct rte_hash *h[NUM_KEYSIZES];
+/* Array that stores if a slot is full */
+uint8_t slot_taken[MAX_ENTRIES];
+/* Array to store number of cycles per operation */
+uint64_t cycles[NUM_KEYSIZES][NUM_OPERATIONS][2];
+/* Array to store all input keys */
+uint8_t keys[KEYS_TO_ADD][MAX_KEYSIZE];
+/* Array to store the precomputed hash for 'keys' */
+hash_sig_t signatures[KEYS_TO_ADD];
+/* Array to store how many busy entries have each bucket */
+uint8_t buckets[NUM_BUCKETS];
+
+/* Parameters used for hash table in unit test functions. */
+static struct rte_hash_parameters ut_params = {
+ .entries = MAX_ENTRIES,
+ .bucket_entries = BUCKET_SIZE,
+ .hash_func = rte_jhash,
+ .hash_func_init_val = 0,
+};
+
+static int
+create_table(unsigned table_index)
+{
+ char name[RTE_HASH_NAMESIZE];
+
+ sprintf(name, "test_hash%d", hashtest_key_lens[table_index]);
+ ut_params.name = name;
+ ut_params.key_len = hashtest_key_lens[table_index];
+ ut_params.socket_id = rte_socket_id();
+ h[table_index] = rte_hash_find_existing(name);
+ if (h[table_index] != NULL)
+ /*
+ * If table was already created, free it to create it again,
+ * so we force it is empty
+ */
+ rte_hash_free(h[table_index]);
+ h[table_index] = rte_hash_create(&ut_params);
+ if (h[table_index] == NULL) {
+ printf("Error creating table\n");
+ return -1;
+ }
+ return 0;
+
+}
+
+/* Shuffle the keys that have been added, so lookups will be totally random */
+static void
+shuffle_input_keys(unsigned table_index)
+{
+ unsigned i;
+ uint32_t swap_idx;
+ uint8_t temp_key[RTE_HASH_KEY_LENGTH_MAX];
+ hash_sig_t temp_signature;
+
+ for (i = 0; i < KEYS_TO_ADD; i++) {
+ do
+ swap_idx = rte_rand() % KEYS_TO_ADD;
+ while (swap_idx == i);
+
+ memcpy(temp_key, keys[i], hashtest_key_lens[table_index]);
+ temp_signature = signatures[i];
+
+ memcpy(keys[i], keys[swap_idx], hashtest_key_lens[table_index]);
+ signatures[i] = signatures[swap_idx];
+
+ memcpy(keys[swap_idx], temp_key, hashtest_key_lens[table_index]);
+ signatures[swap_idx] = temp_signature;
+ }
+}
+
+/*
+ * Creates the table and looks for random keys which
+ * ALL can fit in hash table (no errors)
+ */
+static int
+get_input_keys(unsigned table_index)
+{
+ unsigned i, j;
+ unsigned bucket_idx, incr, success = 1;
+ uint8_t k = 0;
+ int32_t ret;
+ const uint32_t bucket_bitmask = NUM_BUCKETS - 1;
+
+ /* Reset all arrays */
+ for (i = 0; i < MAX_ENTRIES; i++)
+ slot_taken[i] = 0;
+
+ for (i = 0; i < NUM_BUCKETS; i++)
+ buckets[i] = 0;
+
+ for (j = 0; j < hashtest_key_lens[table_index]; j++)
+ keys[0][j] = 0;
+
+ /*
+ * Add only entries that are not duplicated and that fits in the table
+ * (cannot store more than BUCKET_SIZE entries in a bucket).
+ * Regardless a key has been added correctly or not (success),
+ * the next one to try will be increased by 1.
+ */
+ for (i = 0; i < KEYS_TO_ADD;) {
+ incr = 0;
+ if (i != 0) {
+ keys[i][0] = ++k;
+ /* Overflow, need to increment the next byte */
+ if (keys[i][0] == 0)
+ incr = 1;
+ for (j = 1; j < hashtest_key_lens[table_index]; j++) {
+ /* Do not increase next byte */
+ if (incr == 0)
+ if (success == 1)
+ keys[i][j] = keys[i - 1][j];
+ else
+ keys[i][j] = keys[i][j];
+ /* Increase next byte by one */
+ else {
+ if (success == 1)
+ keys[i][j] = keys[i-1][j] + 1;
+ else
+ keys[i][j] = keys[i][j] + 1;
+ if (keys[i][j] == 0)
+ incr = 1;
+ else
+ incr = 0;
+ }
+ }
+ }
+ success = 0;
+ signatures[i] = rte_hash_hash(h[table_index], keys[i]);
+ bucket_idx = signatures[i] & bucket_bitmask;
+ /* If bucket is full, do not try to insert the key */
+ if (buckets[bucket_idx] == BUCKET_SIZE)
+ continue;
+ /* If key can be added, leave in successful key arrays "keys" */
+ ret = rte_hash_add_key_with_hash(h[table_index], keys[i],
+ signatures[i]);
+ if (ret >= 0) {
+ /* If key is already added, ignore the entry and do not store */
+ if (slot_taken[ret])
+ continue;
+ else {
+ /* Store the returned position and mark slot as taken */
+ slot_taken[ret] = 1;
+ buckets[bucket_idx]++;
+ success = 1;
+ i++;
+ }
+ }
+ }
+
+ /* Reset the table, so we can measure the time to add all the entries */
+ rte_hash_free(h[table_index]);
+ h[table_index] = rte_hash_create(&ut_params);
+
+ return 0;
+}
+
+static int
+timed_adds(unsigned with_hash, unsigned table_index) {
+ unsigned i;
+ const uint64_t start_tsc = rte_rdtsc();
+
+ for (i = 0; i < KEYS_TO_ADD; i++) {
+ if (with_hash)
+ rte_hash_add_key_with_hash(h[table_index],
+ (const void *) keys[i],
+ signatures[i]);
+ else
+ rte_hash_add_key(h[table_index], keys[i]);
+ }
+
+ const uint64_t end_tsc = rte_rdtsc();
+ const uint64_t time_taken = end_tsc - start_tsc;
+ const float seconds_taken = (float)time_taken/rte_get_tsc_hz();
+
+ cycles[table_index][ADD][with_hash] = time_taken/KEYS_TO_ADD;
+
+ printf("\n%"PRIu64" adds in %f seconds\n", (uint64_t)KEYS_TO_ADD,
+ seconds_taken);
+ printf("Average %"PRIu64" tsc ticks per add\n",
+ cycles[table_index][ADD][with_hash]);
+ printf("Average %"PRIu64" adds per second\n",
+ (KEYS_TO_ADD * rte_get_tsc_hz())/time_taken);
+ return 0;
+}
+
+static int
+timed_lookups(unsigned with_hash, unsigned table_index)
+{
+ unsigned i, j;
+ const uint64_t start_tsc = rte_rdtsc();
+
+ for (i = 0; i < NUM_LOOKUPS/KEYS_TO_ADD; i++) {
+ for (j = 0; j < KEYS_TO_ADD; j++) {
+ if (with_hash)
+ rte_hash_lookup_with_hash(h[table_index],
+ (const void *) keys[j],
+ signatures[j]);
+ else
+ rte_hash_lookup(h[table_index], keys[j]);
+ }
+ }
+
+ const uint64_t end_tsc = rte_rdtsc();
+ const uint64_t time_taken = end_tsc - start_tsc;
+ const float seconds_taken = (float)time_taken/rte_get_tsc_hz();
+
+ cycles[table_index][LOOKUP][with_hash] = time_taken/NUM_LOOKUPS;
+
+ printf("%"PRIu64" lookups in %f seconds\n", (uint64_t) NUM_LOOKUPS,
+ seconds_taken);
+ printf("Average %"PRIu64" tsc ticks per lookup\n",
+ cycles[table_index][LOOKUP][with_hash]);
+ printf("Average %"PRIu64" lookups per second\n",
+ (NUM_LOOKUPS * rte_get_tsc_hz())/time_taken);
+ return 0;
+}
+
+static int
+timed_lookups_multi(unsigned table_index)
+{
+ unsigned i, j, k;
+ int32_t positions_burst[BURST_SIZE];
+ const void *keys_burst[BURST_SIZE];
+ const uint64_t start_tsc = rte_rdtsc();
+
+ for (i = 0; i < NUM_LOOKUPS/KEYS_TO_ADD; i++) {
+ for (j = 0; j < KEYS_TO_ADD/BURST_SIZE; j++) {
+ for (k = 0; k < BURST_SIZE; k++)
+ keys_burst[k] = keys[j * BURST_SIZE + k];
+ rte_hash_lookup_bulk(h[table_index],
+ (const void **) keys_burst,
+ BURST_SIZE,
+ positions_burst);
+ }
+ }
+
+ const uint64_t end_tsc = rte_rdtsc();
+ const uint64_t time_taken = end_tsc - start_tsc;
+ const float seconds_taken = (float)time_taken/rte_get_tsc_hz();
+
+ cycles[table_index][LOOKUP_MULTI][0] = time_taken/NUM_LOOKUPS;
+
+ printf("%"PRIu64" lookups in %f seconds\n", (uint64_t)NUM_LOOKUPS,
+ seconds_taken);
+ printf("Average %"PRIu64" tsc ticks per lookup\n",
+ cycles[table_index][LOOKUP_MULTI][0]);
+ printf("Average %"PRIu64" lookups per second\n",
+ (NUM_LOOKUPS * rte_get_tsc_hz())/time_taken);
+ return 0;
+}
+
+static int
+timed_deletes(unsigned with_hash, unsigned table_index)
+{
+ unsigned i;
+ const uint64_t start_tsc = rte_rdtsc();
+
+ for (i = 0; i < KEYS_TO_ADD; i++) {
+ if (with_hash)
+ rte_hash_del_key_with_hash(h[table_index],
+ (const void *) keys[i],
+ signatures[i]);
+ else
+ rte_hash_del_key(h[table_index],
+ (const void *) keys[i]);
+ }
+
+ const uint64_t end_tsc = rte_rdtsc();
+ const uint64_t time_taken = end_tsc - start_tsc;
+ const float seconds_taken = (float)time_taken/rte_get_tsc_hz();
+
+ cycles[table_index][DELETE][with_hash] = time_taken/KEYS_TO_ADD;
+
+ printf("\n%"PRIu64" deletions in %f seconds\n", (uint64_t) KEYS_TO_ADD,
+ seconds_taken);
+ printf("Average %"PRIu64" tsc ticks per deletion\n",
+ cycles[table_index][DELETE][with_hash]);
+ printf("Average %"PRIu64" deletions per second\n",
+ (KEYS_TO_ADD * rte_get_tsc_hz())/time_taken);
+ return 0;
+}
+
+static void
+free_table(unsigned table_index)
+{
+ rte_hash_free(h[table_index]);
+}
+
+static int
+reset_table(unsigned table_index)
+{
+ free_table(table_index);
+ if (create_table(table_index) != 0)
+ return -1;
+
+ return 0;
+}
+
+static int
+run_all_tbl_perf_tests(void)
+{
+ unsigned i, j;
+
+ for (i = 0; i < NUM_KEYSIZES; i++) {
+ if (create_table(i) < 0)
+ return -1;
+
+ if (get_input_keys(i) < 0)
+ return -1;
+
+ printf("\n------ KEY SIZE = %u ----------\n\n",
+ hashtest_key_lens[i]);
+ printf("\n ----- WITH PRECOMPUTED HASH VALUES -----\n\n");
+
+ printf("\nTimed additions\n");
+ printf("------------------\n");
+ if (timed_adds(1, i) < 0)
+ return -1;
+
+ for (j = 0; j < NUM_SHUFFLES; j++)
+ shuffle_input_keys(i);
+
+ printf("\nTimed lookups\n");
+ printf("------------------\n");
+ if (timed_lookups(1, i) < 0)
+ return -1;
+
+ printf("\nTimed deletions\n");
+ printf("------------------\n");
+ if (timed_deletes(1, i) < 0)
+ return -1;
+
+ if (reset_table(i) < 0)
+ return -1;
+
+ printf("\n ----- WITH JUST KEYS -----\n\n");
+
+ printf("\nTimed additions\n");
+ printf("------------------\n");
+ if (timed_adds(0, i) < 0)
+ return -1;
+
+ for (j = 0; j < NUM_SHUFFLES; j++)
+ shuffle_input_keys(i);
+
+ printf("\nTimed lookups\n");
+ printf("------------------\n");
+ if (timed_lookups(0, i) < 0)
+ return -1;
+
+ printf("\nTimed lookups multi\n");
+ printf("------------------\n");
+ if (timed_lookups_multi(i) < 0)
+ return -1;
+
+ printf("\nTimed deletions\n");
+ printf("------------------\n");
+ if (timed_deletes(0, i) < 0)
+ return -1;
+
+ free_table(i);
+
+ }
+ printf("\nResults (in CPU cycles/operation)\n");
+ printf("-----------------------------------\n");
+ printf("\nWith precomputed hash\n");
+ printf("\n%-18s%-18s%-18s%-18s%-18s\n",
+ "Keysize", "Add", "Lookup", "Lookup_bulk", "Delete");
+ for (i = 0; i < NUM_KEYSIZES; i++) {
+ printf("%-18d", hashtest_key_lens[i]);
+ for (j = 0; j < NUM_OPERATIONS; j++)
+ printf("%-18"PRIu64, cycles[i][j][1]);
+ printf("\n");
+ }
+ printf("\nWith just keys\n");
+ printf("\n%-18s%-18s%-18s%-18s%-18s\n",
+ "Keysize", "Add", "Lookup", "Lookup_bulk", "Delete");
+ for (i = 0; i < NUM_KEYSIZES; i++) {
+ printf("%-18d", hashtest_key_lens[i]);
+ for (j = 0; j < NUM_OPERATIONS; j++)
+ printf("%-18"PRIu64, cycles[i][j][0]);
+ printf("\n");
+ }
+
+ return 0;
+}
+
+/* Control operation of performance testing of fbk hash. */
+#define LOAD_FACTOR 0.667 /* How full to make the hash table. */
+#define TEST_SIZE 1000000 /* How many operations to time. */
+#define TEST_ITERATIONS 30 /* How many measurements to take. */
+#define ENTRIES (1 << 15) /* How many entries. */
+
+static int
+fbk_hash_perf_test(void)
+{
+ struct rte_fbk_hash_params params = {
+ .name = "fbk_hash_test",
+ .entries = ENTRIES,
+ .entries_per_bucket = 4,
+ .socket_id = rte_socket_id(),
+ };
+ struct rte_fbk_hash_table *handle = NULL;
+ uint32_t *keys = NULL;
+ unsigned indexes[TEST_SIZE];
+ uint64_t lookup_time = 0;
+ unsigned added = 0;
+ unsigned value = 0;
+ uint32_t key;
+ uint16_t val;
+ unsigned i, j;
+
+ handle = rte_fbk_hash_create(¶ms);
+ if (handle == NULL) {
+ printf("Error creating table\n");
+ return -1;
+ }
+
+ keys = rte_zmalloc(NULL, ENTRIES * sizeof(*keys), 0);
+ if (keys == NULL) {
+ printf("fbk hash: memory allocation for key store failed\n");
+ return -1;
+ }
+
+ /* Generate random keys and values. */
+ for (i = 0; i < ENTRIES; i++) {
+ key = (uint32_t)rte_rand();
+ key = ((uint64_t)key << 32) | (uint64_t)rte_rand();
+ val = (uint16_t)rte_rand();
+
+ if (rte_fbk_hash_add_key(handle, key, val) == 0) {
+ keys[added] = key;
+ added++;
+ }
+ if (added > (LOAD_FACTOR * ENTRIES))
+ break;
+ }
+
+ for (i = 0; i < TEST_ITERATIONS; i++) {
+ uint64_t begin;
+ uint64_t end;
+
+ /* Generate random indexes into keys[] array. */
+ for (j = 0; j < TEST_SIZE; j++)
+ indexes[j] = rte_rand() % added;
+
+ begin = rte_rdtsc();
+ /* Do lookups */
+ for (j = 0; j < TEST_SIZE; j++)
+ value += rte_fbk_hash_lookup(handle, keys[indexes[j]]);
+
+ end = rte_rdtsc();
+ lookup_time += (double)(end - begin);
+ }
+
+ printf("\n\n *** FBK Hash function performance test results ***\n");
+ /*
+ * The use of the 'value' variable ensures that the hash lookup is not
+ * being optimised out by the compiler.
+ */
+ if (value != 0)
+ printf("Number of ticks per lookup = %g\n",
+ (double)lookup_time /
+ ((double)TEST_ITERATIONS * (double)TEST_SIZE));
+
+ rte_fbk_hash_free(handle);
+
+ return 0;
+}
+
+static int
+test_hash_perf_new(void)
+{
+ if (run_all_tbl_perf_tests() < 0)
+ return -1;
+
+ if (fbk_hash_perf_test() < 0)
+ return -1;
+
+ return 0;
+}
+
+static struct test_command hash_perf_new_cmd = {
+ .command = "hash_perf_new_autotest",
+ .callback = test_hash_perf_new,
+};
+REGISTER_TEST_COMMAND(hash_perf_new_cmd);