This patch adds performance tests for different implementations
of the Toeplitz hash function.
Signed-off-by: Vladimir Medvedkin <vladimir.medved...@intel.com>
---
app/test/meson.build | 2 +
app/test/test_thash_perf.c | 125 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 127 insertions(+)
create mode 100644 app/test/test_thash_perf.c
diff --git a/app/test/meson.build b/app/test/meson.build
index a761168..be5df32 100644
--- a/app/test/meson.build
+++ b/app/test/meson.build
@@ -140,6 +140,7 @@ test_sources = files(
'test_table_tables.c',
'test_tailq.c',
'test_thash.c',
+ 'test_thash_perf.c',
'test_timer.c',
'test_timer_perf.c',
'test_timer_racecond.c',
@@ -314,6 +315,7 @@ perf_test_names = [
'hash_readwrite_lf_perf_autotest',
'trace_perf_autotest',
'ipsec_perf_autotest',
+ 'thash_perf_autotest',
]
driver_test_names = [
diff --git a/app/test/test_thash_perf.c b/app/test/test_thash_perf.c
new file mode 100644
index 0000000..ccc4710
--- /dev/null
+++ b/app/test/test_thash_perf.c
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include <rte_cycles.h>
+#include <rte_malloc.h>
+#include <rte_random.h>
+#include <rte_thash.h>
+
+#include "test.h"
+
+#define ITERATIONS (1 << 15)
+#define BATCH_SZ (1 << 10)
+
+#define IPV4_2_TUPLE_LEN (8)
+#define IPV4_4_TUPLE_LEN (12)
+#define IPV6_2_TUPLE_LEN (32)
+#define IPV6_4_TUPLE_LEN (36)
+
+
+static uint8_t default_rss_key[] = {
+ 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2,
+ 0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0,
+ 0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4,
+ 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c,
+ 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa,
+};
+
+static void
+run_thash_test(unsigned int tuple_len)
+{
+ uint32_t *tuples[BATCH_SZ];
+ unsigned int i, j;
+ uint64_t start_tsc, end_tsc;
+ uint32_t len = RTE_ALIGN_CEIL(tuple_len, sizeof(uint32_t));
+ volatile uint32_t hash = 0;
+ uint32_t hash_1 = 0;
+ uint32_t hash_2 = 0;
+
+ for (i = 0; i < BATCH_SZ; i++) {
+ tuples[i] = rte_zmalloc(NULL, len, 0);
+ for (j = 0; j < len / sizeof(uint32_t); j++)
+ tuples[i][j] = rte_rand();
+ }
+
+ start_tsc = rte_rdtsc_precise();
+ for (i = 0; i < ITERATIONS; i++) {
+ for (j = 0; j < BATCH_SZ; j++) {
+ hash ^= rte_softrss(tuples[j], len / sizeof(uint32_t),
+ default_rss_key);
+ }
+ }
+ end_tsc = rte_rdtsc_precise();
+
+ printf("Average rte_softrss() takes \t\t%.1f cycles for key len %d\n",
+ (double)(end_tsc - start_tsc) / (double)(ITERATIONS *
+ BATCH_SZ), len);
+
+ start_tsc = rte_rdtsc_precise();
+ for (i = 0; i < ITERATIONS; i++) {
+ for (j = 0; j < BATCH_SZ; j++) {
+ hash ^= rte_softrss_be(tuples[j], len /
+ sizeof(uint32_t), default_rss_key);
+ }
+ }
+ end_tsc = rte_rdtsc_precise();
+
+ printf("Average rte_softrss_be() takes \t\t%.1f cycles for key len
%d\n",
+ (double)(end_tsc - start_tsc) / (double)(ITERATIONS *
+ BATCH_SZ), len);
+
+ if (!rte_thash_gfni_supported)
+ return;
+
+ uint64_t rss_key_matrixes[RTE_DIM(default_rss_key)];
+
+ rte_thash_complete_matrix(rss_key_matrixes, default_rss_key,
+ RTE_DIM(default_rss_key));
+
+ start_tsc = rte_rdtsc_precise();
+ for (i = 0; i < ITERATIONS; i++) {
+ for (j = 0; j < BATCH_SZ; j++)
+ hash ^= rte_thash_gfni(rss_key_matrixes,
+ (uint8_t *)tuples[j], len);
+ }
+ end_tsc = rte_rdtsc_precise();
+
+ printf("Average rte_thash_gfni takes \t\t%.1f cycles for key len %d\n",
+ (double)(end_tsc - start_tsc) / (double)(ITERATIONS *
+ BATCH_SZ), len);
+
+ start_tsc = rte_rdtsc_precise();
+ for (i = 0; i < ITERATIONS; i++) {
+ for (j = 0; j < BATCH_SZ; j += 2) {
+ rte_thash_gfni_x2(rss_key_matrixes,
+ (uint8_t *)tuples[j], (uint8_t *)tuples[j + 1],
+ len, &hash_1, &hash_2);
+
+ hash ^= hash_1 ^ hash_2;
+ }
+ }
+ end_tsc = rte_rdtsc_precise();
+
+ printf("Average rte_thash_gfni_x2 takes \t%.1f cycles for key len %d\n",
+ (double)(end_tsc - start_tsc) / (double)(ITERATIONS *
+ BATCH_SZ), len);
+}
+
+static int
+test_thash_perf(void)
+{
+ run_thash_test(IPV4_2_TUPLE_LEN);
+ run_thash_test(IPV4_4_TUPLE_LEN);
+ run_thash_test(IPV6_2_TUPLE_LEN);
+ run_thash_test(IPV6_4_TUPLE_LEN);
+
+ return 0;
+}
+
+REGISTER_TEST_COMMAND(thash_perf_autotest, test_thash_perf);
--
2.7.4
