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From: "Mattias Rönnblom" <mattias.ronnblom@ericsson.com>
To: <dev@dpdk.org>
Cc: nhorman@tuxdriver.com, stephen@networkplumber.org,
	david.marchand@redhat.com, bruce.richardson@intel.com,
	"Mattias Rönnblom" <mattias.ronnblom@ericsson.com>
Subject: [dpdk-dev] [PATCH 2/6] eal: add pseudo-random number generation performance test
Date: Tue, 14 May 2019 11:20:42 +0200	[thread overview]
Message-ID: <20190514092046.30808-3-mattias.ronnblom@ericsson.com> (raw)
Message-ID: <20190514092042.JpJBuy89IMfGBk-th2_1mRTRVoz8V1ENH1-vYEuUbJA@z> (raw)
In-Reply-To: <20190514092046.30808-1-mattias.ronnblom@ericsson.com>

Add performance test for rte_rand().

Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
---
 app/test/Makefile         |  1 +
 app/test/test_rand_perf.c | 75 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 app/test/test_rand_perf.c

diff --git a/app/test/Makefile b/app/test/Makefile
index 68d6b4fbc..be0f39227 100644
--- a/app/test/Makefile
+++ b/app/test/Makefile
@@ -73,6 +73,7 @@ SRCS-y += test_reciprocal_division.c
 SRCS-y += test_reciprocal_division_perf.c
 SRCS-y += test_fbarray.c
 SRCS-y += test_external_mem.c
+SRCS-y += test_rand_perf.c
 
 SRCS-y += test_ring.c
 SRCS-y += test_ring_perf.c
diff --git a/app/test/test_rand_perf.c b/app/test/test_rand_perf.c
new file mode 100644
index 000000000..771713757
--- /dev/null
+++ b/app/test/test_rand_perf.c
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Ericsson AB
+ */
+
+#include <inttypes.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_random.h>
+
+#include "test.h"
+
+static volatile uint64_t vsum;
+
+#define ITERATIONS (100000000)
+
+enum rand_type {
+	rand_type_64
+};
+
+static const char *
+rand_type_desc(enum rand_type rand_type)
+{
+	switch (rand_type) {
+	case rand_type_64:
+		return "Full 64-bit [rte_rand()]";
+	default:
+		return NULL;
+	}
+}
+
+static __rte_always_inline void
+test_rand_perf_type(enum rand_type rand_type)
+{
+	uint64_t start;
+	uint32_t i;
+	uint64_t end;
+	uint64_t sum = 0;
+	uint64_t op_latency;
+
+	start = rte_rdtsc();
+
+	for (i = 0; i < ITERATIONS; i++) {
+		switch (rand_type) {
+		case rand_type_64:
+			sum += rte_rand();
+			break;
+		}
+	}
+
+	end = rte_rdtsc();
+
+	/* to avoid an optimizing compiler removing the whole loop */
+	vsum = sum;
+
+	op_latency = (end - start) / ITERATIONS;
+
+	printf("%s: %"PRId64" TSC cycles/op\n", rand_type_desc(rand_type),
+	       op_latency);
+}
+
+static int
+test_rand_perf(void)
+{
+	rte_srand(42);
+
+	printf("Pseudo-random number generation latencies:\n");
+
+	test_rand_perf_type(rand_type_64);
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(rand_perf_autotest, test_rand_perf);
-- 
2.17.1


  parent reply	other threads:[~2019-05-14  9:21 UTC|newest]

Thread overview: 137+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-05 13:45 [dpdk-dev] [RFC] eal: make rte_rand() MT safe Mattias Rönnblom
2019-04-05 13:45 ` Mattias Rönnblom
2019-04-05 13:51 ` Mattias Rönnblom
2019-04-05 13:51   ` Mattias Rönnblom
2019-04-05 14:28   ` Bruce Richardson
2019-04-05 14:28     ` Bruce Richardson
2019-04-05 14:56     ` Mattias Rönnblom
2019-04-05 14:56       ` Mattias Rönnblom
2019-04-05 16:57 ` Stephen Hemminger
2019-04-05 16:57   ` Stephen Hemminger
2019-04-05 18:04   ` Mattias Rönnblom
2019-04-05 18:04     ` Mattias Rönnblom
2019-04-05 20:50     ` Stephen Hemminger
2019-04-05 20:50       ` Stephen Hemminger
2019-04-06  5:52       ` Mattias Rönnblom
2019-04-06  5:52         ` Mattias Rönnblom
2019-04-08 12:30       ` [dpdk-dev] [RFC 1/3] Replace lrand48-based rte_rand with LFSR generator Mattias Rönnblom
2019-04-08 12:30         ` Mattias Rönnblom
2019-04-08 12:30         ` [dpdk-dev] [RFC 2/3] Add 32-bit version of rte_rand Mattias Rönnblom
2019-04-08 12:30           ` Mattias Rönnblom
2019-04-08 12:30         ` [dpdk-dev] [RFC 3/3] Introduce random generator functions with upper bound Mattias Rönnblom
2019-04-08 12:30           ` Mattias Rönnblom
2019-04-08 12:47         ` [dpdk-dev] [RFC 1/3] Replace lrand48-based rte_rand with LFSR generator Mattias Rönnblom
2019-04-08 12:47           ` Mattias Rönnblom
2019-04-19 21:21         ` [dpdk-dev] [RFC v2 0/2] Pseudo-number generation improvements Mattias Rönnblom
2019-04-19 21:21           ` Mattias Rönnblom
2019-04-19 21:21           ` [dpdk-dev] [RFC v2 1/2] eal: replace libc-based random number generation with LFSR Mattias Rönnblom
2019-04-19 21:21             ` Mattias Rönnblom
2019-04-22 11:34             ` Neil Horman
2019-04-22 11:34               ` Neil Horman
2019-04-22 14:49               ` Stephen Hemminger
2019-04-22 14:49                 ` Stephen Hemminger
2019-04-22 15:52               ` Mattias Rönnblom
2019-04-22 15:52                 ` Mattias Rönnblom
2019-04-22 17:44                 ` Mattias Rönnblom
2019-04-22 17:44                   ` Mattias Rönnblom
2019-04-23 11:33                   ` Neil Horman
2019-04-23 11:33                     ` Neil Horman
2019-04-23 17:13                     ` Mattias Rönnblom
2019-04-23 17:13                       ` Mattias Rönnblom
2019-04-24 11:37                       ` Neil Horman
2019-04-24 11:37                         ` Neil Horman
2019-04-23 15:31                   ` Stephen Hemminger
2019-04-23 15:31                     ` Stephen Hemminger
2019-04-23 17:17                     ` Mattias Rönnblom
2019-04-23 17:17                       ` Mattias Rönnblom
2019-04-24  7:52                       ` Mattias Rönnblom
2019-04-24  7:52                         ` Mattias Rönnblom
2019-04-24 12:33                         ` [dpdk-dev] [RFC v3 0/2] Pseudo-random number generation improvements Mattias Rönnblom
2019-04-24 12:33                           ` Mattias Rönnblom
2019-04-24 12:33                           ` [dpdk-dev] [RFC v3 1/2] eal: replace libc-based random number generation with LFSR Mattias Rönnblom
2019-04-24 12:33                             ` Mattias Rönnblom
2019-05-08 20:12                             ` Stephen Hemminger
2019-05-08 20:12                               ` Stephen Hemminger
2019-05-08 20:30                               ` Mattias Rönnblom
2019-05-08 20:30                                 ` Mattias Rönnblom
2019-05-09  1:10                                 ` Stephen Hemminger
2019-05-09  1:10                                   ` Stephen Hemminger
2019-05-14  9:20                                   ` [dpdk-dev] [PATCH 0/6] Pseudo-random number generation improvements Mattias Rönnblom
2019-05-14  9:20                                     ` Mattias Rönnblom
2019-05-14  9:20                                     ` [dpdk-dev] [PATCH 1/6] eal: replace libc-based random number generation with LFSR Mattias Rönnblom
2019-05-14  9:20                                       ` Mattias Rönnblom
2019-05-14  9:32                                       ` Mattias Rönnblom
2019-05-14  9:32                                         ` Mattias Rönnblom
2019-05-14 14:16                                       ` Neil Horman
2019-05-14 14:16                                         ` Neil Horman
2019-05-14 14:53                                         ` Mattias Rönnblom
2019-05-14 14:53                                           ` Mattias Rönnblom
2019-05-17 19:27                                           ` Neil Horman
2019-05-17 20:57                                             ` Bruce Richardson
2019-05-17 21:10                                             ` Mattias Rönnblom
2019-05-19 18:32                                               ` Neil Horman
2019-05-14 15:27                                       ` Stephen Hemminger
2019-05-14 15:27                                         ` Stephen Hemminger
2019-05-14  9:20                                     ` Mattias Rönnblom [this message]
2019-05-14  9:20                                       ` [dpdk-dev] [PATCH 2/6] eal: add pseudo-random number generation performance test Mattias Rönnblom
2019-05-14  9:20                                     ` [dpdk-dev] [PATCH 3/6] eal: improve entropy for initial PRNG seed Mattias Rönnblom
2019-05-14  9:20                                       ` Mattias Rönnblom
2019-05-14  9:36                                       ` Mattias Rönnblom
2019-05-14  9:36                                         ` Mattias Rönnblom
2019-05-14  9:39                                         ` Bruce Richardson
2019-05-14  9:39                                           ` Bruce Richardson
2019-05-14 11:58                                           ` Mattias Rönnblom
2019-05-14 11:58                                             ` Mattias Rönnblom
2019-05-14  9:37                                       ` Bruce Richardson
2019-05-14  9:37                                         ` Bruce Richardson
2019-05-14  9:20                                     ` [dpdk-dev] [PATCH 4/6] eal: introduce random generator function with upper bound Mattias Rönnblom
2019-05-14  9:20                                       ` Mattias Rönnblom
2019-05-14  9:20                                     ` [dpdk-dev] [PATCH 5/6] eal: add bounded PRNG performance tests Mattias Rönnblom
2019-05-14  9:20                                       ` Mattias Rönnblom
2019-05-14  9:20                                     ` [dpdk-dev] [PATCH 6/6] eal: add pseudo-random number generation to MAINTAINERS Mattias Rönnblom
2019-05-14  9:20                                       ` Mattias Rönnblom
2019-05-16 17:55                                     ` [dpdk-dev] [PATCH v2 0/6] Pseudo-random number generation improvements Mattias Rönnblom
2019-05-16 17:55                                       ` [dpdk-dev] [PATCH v2 1/6] eal: replace libc-based random number generation with LFSR Mattias Rönnblom
2019-05-16 17:55                                       ` [dpdk-dev] [PATCH v2 2/6] eal: add pseudo-random number generation performance test Mattias Rönnblom
2019-05-16 17:55                                       ` [dpdk-dev] [PATCH v2 3/6] eal: improve entropy for initial PRNG seed Mattias Rönnblom
2019-05-16 17:55                                       ` [dpdk-dev] [PATCH v2 4/6] eal: introduce random generator function with upper bound Mattias Rönnblom
2019-05-16 17:55                                       ` [dpdk-dev] [PATCH v2 5/6] eal: add bounded PRNG performance tests Mattias Rönnblom
2019-05-16 17:55                                       ` [dpdk-dev] [PATCH v2 6/6] eal: add PRNG to MAINTAINERS and release notes Mattias Rönnblom
2019-05-16 20:35                                       ` [dpdk-dev] [PATCH v2 0/6] Pseudo-random number generation improvements Bruce Richardson
2019-06-05 10:43                                         ` [dpdk-dev] [PATCH v3 " Mattias Rönnblom
2019-06-05 10:43                                           ` [dpdk-dev] [PATCH v3 1/6] eal: replace libc-based random number generation with LFSR Mattias Rönnblom
2019-06-05 10:43                                           ` [dpdk-dev] [PATCH v3 2/6] eal: add pseudo-random number generation performance test Mattias Rönnblom
2019-06-27 21:23                                             ` Thomas Monjalon
2019-06-28  8:20                                               ` Mattias Rönnblom
2019-06-05 10:43                                           ` [dpdk-dev] [PATCH v3 3/6] eal: improve entropy for initial PRNG seed Mattias Rönnblom
2019-06-05 10:43                                           ` [dpdk-dev] [PATCH v3 4/6] eal: introduce random generator function with upper bound Mattias Rönnblom
2019-06-05 10:43                                           ` [dpdk-dev] [PATCH v3 5/6] eal: add bounded PRNG performance tests Mattias Rönnblom
2019-06-05 10:44                                           ` [dpdk-dev] [PATCH v3 6/6] eal: add PRNG to MAINTAINERS and release notes Mattias Rönnblom
2019-06-27 21:27                                             ` Thomas Monjalon
2019-06-28  8:17                                               ` Mattias Rönnblom
2019-06-15 12:23                                           ` [dpdk-dev] [PATCH v3 0/6] Pseudo-random number generation improvements Mattias Rönnblom
2019-06-28  9:01                                           ` [dpdk-dev] [PATCH v4 0/5] " Mattias Rönnblom
2019-06-28  9:01                                             ` [dpdk-dev] [PATCH v4 1/5] eal: replace libc-based random number generation with LFSR Mattias Rönnblom
2019-06-28  9:01                                             ` [dpdk-dev] [PATCH v4 2/5] eal: add pseudo-random number generation performance test Mattias Rönnblom
2019-06-28  9:01                                             ` [dpdk-dev] [PATCH v4 3/5] eal: improve entropy for initial PRNG seed Mattias Rönnblom
2019-06-28 19:01                                               ` Ferruh Yigit
2019-06-28 20:58                                                 ` Mattias Rönnblom
2019-06-28 21:08                                                   ` [dpdk-dev] [PATCH] eal: use 32-bit RDSEED to allow 32-bit x86 usage Mattias Rönnblom
2019-06-29 12:54                                                     ` Thomas Monjalon
2019-06-28  9:01                                             ` [dpdk-dev] [PATCH v4 4/5] eal: introduce random generator function with upper bound Mattias Rönnblom
2019-06-28  9:01                                             ` [dpdk-dev] [PATCH v4 5/5] eal: add bounded PRNG performance tests Mattias Rönnblom
2019-06-28 13:24                                             ` [dpdk-dev] [PATCH v4 0/5] Pseudo-random number generation improvements Thomas Monjalon
2019-04-24 12:33                           ` [dpdk-dev] [RFC v3 2/2] eal: introduce random generator function with upper bound Mattias Rönnblom
2019-04-24 12:33                             ` Mattias Rönnblom
2019-04-19 21:21           ` [dpdk-dev] [RFC v2 " Mattias Rönnblom
2019-04-19 21:21             ` Mattias Rönnblom
2019-04-20 21:08             ` Wiles, Keith
2019-04-20 21:08               ` Wiles, Keith
2019-04-21 19:05               ` Mattias Rönnblom
2019-04-21 19:05                 ` Mattias Rönnblom
2019-04-22  4:33                 ` Wiles, Keith
2019-04-22  4:33                   ` Wiles, Keith
2019-04-22  7:07                   ` Mattias Rönnblom
2019-04-22  7:07                     ` Mattias Rönnblom
2019-04-22 13:19                     ` Wiles, Keith
2019-04-22 13:19                       ` Wiles, Keith

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