Imported Upstream version 17.05

Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 0 insertions, 417 deletions

diff --git a/app/test/test_ring_perf.c b/app/test/test_ring_perf.c
deleted file mode 100644
index 320c20cd..00000000
--- a/app/test/test_ring_perf.c
+++ /dev/null
@@ -1,417 +0,0 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 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_ring.h>
-#include <rte_cycles.h>
-#include <rte_launch.h>
-
-#include "test.h"
-
-/*
- * Ring
- * ====
- *
- * Measures performance of various operations using rdtsc
- *  * Empty ring dequeue
- *  * Enqueue/dequeue of bursts in 1 threads
- *  * Enqueue/dequeue of bursts in 2 threads
- */
-
-#define RING_NAME "RING_PERF"
-#define RING_SIZE 4096
-#define MAX_BURST 32
-
-/*
- * the sizes to enqueue and dequeue in testing
- * (marked volatile so they won't be seen as compile-time constants)
- */
-static const volatile unsigned bulk_sizes[] = { 8, 32 };
-
-/* The ring structure used for tests */
-static struct rte_ring *r;
-
-struct lcore_pair {
-	unsigned c1, c2;
-};
-
-static volatile unsigned lcore_count = 0;
-
-/**** Functions to analyse our core mask to get cores for different tests ***/
-
-static int
-get_two_hyperthreads(struct lcore_pair *lcp)
-{
-	unsigned id1, id2;
-	unsigned c1, c2, s1, s2;
-	RTE_LCORE_FOREACH(id1) {
-		/* inner loop just re-reads all id's. We could skip the first few
-		 * elements, but since number of cores is small there is little point
-		 */
-		RTE_LCORE_FOREACH(id2) {
-			if (id1 == id2)
-				continue;
-			c1 = lcore_config[id1].core_id;
-			c2 = lcore_config[id2].core_id;
-			s1 = lcore_config[id1].socket_id;
-			s2 = lcore_config[id2].socket_id;
-			if ((c1 == c2) && (s1 == s2)){
-				lcp->c1 = id1;
-				lcp->c2 = id2;
-				return 0;
-			}
-		}
-	}
-	return 1;
-}
-
-static int
-get_two_cores(struct lcore_pair *lcp)
-{
-	unsigned id1, id2;
-	unsigned c1, c2, s1, s2;
-	RTE_LCORE_FOREACH(id1) {
-		RTE_LCORE_FOREACH(id2) {
-			if (id1 == id2)
-				continue;
-			c1 = lcore_config[id1].core_id;
-			c2 = lcore_config[id2].core_id;
-			s1 = lcore_config[id1].socket_id;
-			s2 = lcore_config[id2].socket_id;
-			if ((c1 != c2) && (s1 == s2)){
-				lcp->c1 = id1;
-				lcp->c2 = id2;
-				return 0;
-			}
-		}
-	}
-	return 1;
-}
-
-static int
-get_two_sockets(struct lcore_pair *lcp)
-{
-	unsigned id1, id2;
-	unsigned s1, s2;
-	RTE_LCORE_FOREACH(id1) {
-		RTE_LCORE_FOREACH(id2) {
-			if (id1 == id2)
-				continue;
-			s1 = lcore_config[id1].socket_id;
-			s2 = lcore_config[id2].socket_id;
-			if (s1 != s2){
-				lcp->c1 = id1;
-				lcp->c2 = id2;
-				return 0;
-			}
-		}
-	}
-	return 1;
-}
-
-/* Get cycle counts for dequeuing from an empty ring. Should be 2 or 3 cycles */
-static void
-test_empty_dequeue(void)
-{
-	const unsigned iter_shift = 26;
-	const unsigned iterations = 1<<iter_shift;
-	unsigned i = 0;
-	void *burst[MAX_BURST];
-
-	const uint64_t sc_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++)
-		rte_ring_sc_dequeue_bulk(r, burst, bulk_sizes[0]);
-	const uint64_t sc_end = rte_rdtsc();
-
-	const uint64_t mc_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++)
-		rte_ring_mc_dequeue_bulk(r, burst, bulk_sizes[0]);
-	const uint64_t mc_end = rte_rdtsc();
-
-	printf("SC empty dequeue: %.2F\n",
-			(double)(sc_end-sc_start) / iterations);
-	printf("MC empty dequeue: %.2F\n",
-			(double)(mc_end-mc_start) / iterations);
-}
-
-/*
- * for the separate enqueue and dequeue threads they take in one param
- * and return two. Input = burst size, output = cycle average for sp/sc & mp/mc
- */
-struct thread_params {
-	unsigned size;        /* input value, the burst size */
-	double spsc, mpmc;    /* output value, the single or multi timings */
-};
-
-/*
- * Function that uses rdtsc to measure timing for ring enqueue. Needs pair
- * thread running dequeue_bulk function
- */
-static int
-enqueue_bulk(void *p)
-{
-	const unsigned iter_shift = 23;
-	const unsigned iterations = 1<<iter_shift;
-	struct thread_params *params = p;
-	const unsigned size = params->size;
-	unsigned i;
-	void *burst[MAX_BURST] = {0};
-
-	if ( __sync_add_and_fetch(&lcore_count, 1) != 2 )
-		while(lcore_count != 2)
-			rte_pause();
-
-	const uint64_t sp_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++)
-		while (rte_ring_sp_enqueue_bulk(r, burst, size) != 0)
-			rte_pause();
-	const uint64_t sp_end = rte_rdtsc();
-
-	const uint64_t mp_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++)
-		while (rte_ring_mp_enqueue_bulk(r, burst, size) != 0)
-			rte_pause();
-	const uint64_t mp_end = rte_rdtsc();
-
-	params->spsc = ((double)(sp_end - sp_start))/(iterations*size);
-	params->mpmc = ((double)(mp_end - mp_start))/(iterations*size);
-	return 0;
-}
-
-/*
- * Function that uses rdtsc to measure timing for ring dequeue. Needs pair
- * thread running enqueue_bulk function
- */
-static int
-dequeue_bulk(void *p)
-{
-	const unsigned iter_shift = 23;
-	const unsigned iterations = 1<<iter_shift;
-	struct thread_params *params = p;
-	const unsigned size = params->size;
-	unsigned i;
-	void *burst[MAX_BURST] = {0};
-
-	if ( __sync_add_and_fetch(&lcore_count, 1) != 2 )
-		while(lcore_count != 2)
-			rte_pause();
-
-	const uint64_t sc_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++)
-		while (rte_ring_sc_dequeue_bulk(r, burst, size) != 0)
-			rte_pause();
-	const uint64_t sc_end = rte_rdtsc();
-
-	const uint64_t mc_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++)
-		while (rte_ring_mc_dequeue_bulk(r, burst, size) != 0)
-			rte_pause();
-	const uint64_t mc_end = rte_rdtsc();
-
-	params->spsc = ((double)(sc_end - sc_start))/(iterations*size);
-	params->mpmc = ((double)(mc_end - mc_start))/(iterations*size);
-	return 0;
-}
-
-/*
- * Function that calls the enqueue and dequeue bulk functions on pairs of cores.
- * used to measure ring perf between hyperthreads, cores and sockets.
- */
-static void
-run_on_core_pair(struct lcore_pair *cores,
-		lcore_function_t f1, lcore_function_t f2)
-{
-	struct thread_params param1 = {0}, param2 = {0};
-	unsigned i;
-	for (i = 0; i < sizeof(bulk_sizes)/sizeof(bulk_sizes[0]); i++) {
-		lcore_count = 0;
-		param1.size = param2.size = bulk_sizes[i];
-		if (cores->c1 == rte_get_master_lcore()) {
-			rte_eal_remote_launch(f2, &param2, cores->c2);
-			f1(&param1);
-			rte_eal_wait_lcore(cores->c2);
-		} else {
-			rte_eal_remote_launch(f1, &param1, cores->c1);
-			rte_eal_remote_launch(f2, &param2, cores->c2);
-			rte_eal_wait_lcore(cores->c1);
-			rte_eal_wait_lcore(cores->c2);
-		}
-		printf("SP/SC bulk enq/dequeue (size: %u): %.2F\n", bulk_sizes[i],
-				param1.spsc + param2.spsc);
-		printf("MP/MC bulk enq/dequeue (size: %u): %.2F\n", bulk_sizes[i],
-				param1.mpmc + param2.mpmc);
-	}
-}
-
-/*
- * Test function that determines how long an enqueue + dequeue of a single item
- * takes on a single lcore. Result is for comparison with the bulk enq+deq.
- */
-static void
-test_single_enqueue_dequeue(void)
-{
-	const unsigned iter_shift = 24;
-	const unsigned iterations = 1<<iter_shift;
-	unsigned i = 0;
-	void *burst = NULL;
-
-	const uint64_t sc_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++) {
-		rte_ring_sp_enqueue(r, burst);
-		rte_ring_sc_dequeue(r, &burst);
-	}
-	const uint64_t sc_end = rte_rdtsc();
-
-	const uint64_t mc_start = rte_rdtsc();
-	for (i = 0; i < iterations; i++) {
-		rte_ring_mp_enqueue(r, burst);
-		rte_ring_mc_dequeue(r, &burst);
-	}
-	const uint64_t mc_end = rte_rdtsc();
-
-	printf("SP/SC single enq/dequeue: %"PRIu64"\n",
-			(sc_end-sc_start) >> iter_shift);
-	printf("MP/MC single enq/dequeue: %"PRIu64"\n",
-			(mc_end-mc_start) >> iter_shift);
-}
-
-/*
- * Test that does both enqueue and dequeue on a core using the burst() API calls
- * instead of the bulk() calls used in other tests. Results should be the same
- * as for the bulk function called on a single lcore.
- */
-static void
-test_burst_enqueue_dequeue(void)
-{
-	const unsigned iter_shift = 23;
-	const unsigned iterations = 1<<iter_shift;
-	unsigned sz, i = 0;
-	void *burst[MAX_BURST] = {0};
-
-	for (sz = 0; sz < sizeof(bulk_sizes)/sizeof(bulk_sizes[0]); sz++) {
-		const uint64_t sc_start = rte_rdtsc();
-		for (i = 0; i < iterations; i++) {
-			rte_ring_sp_enqueue_burst(r, burst, bulk_sizes[sz]);
-			rte_ring_sc_dequeue_burst(r, burst, bulk_sizes[sz]);
-		}
-		const uint64_t sc_end = rte_rdtsc();
-
-		const uint64_t mc_start = rte_rdtsc();
-		for (i = 0; i < iterations; i++) {
-			rte_ring_mp_enqueue_burst(r, burst, bulk_sizes[sz]);
-			rte_ring_mc_dequeue_burst(r, burst, bulk_sizes[sz]);
-		}
-		const uint64_t mc_end = rte_rdtsc();
-
-		uint64_t mc_avg = ((mc_end-mc_start) >> iter_shift) / bulk_sizes[sz];
-		uint64_t sc_avg = ((sc_end-sc_start) >> iter_shift) / bulk_sizes[sz];
-
-		printf("SP/SC burst enq/dequeue (size: %u): %"PRIu64"\n", bulk_sizes[sz],
-				sc_avg);
-		printf("MP/MC burst enq/dequeue (size: %u): %"PRIu64"\n", bulk_sizes[sz],
-				mc_avg);
-	}
-}
-
-/* Times enqueue and dequeue on a single lcore */
-static void
-test_bulk_enqueue_dequeue(void)
-{
-	const unsigned iter_shift = 23;
-	const unsigned iterations = 1<<iter_shift;
-	unsigned sz, i = 0;
-	void *burst[MAX_BURST] = {0};
-
-	for (sz = 0; sz < sizeof(bulk_sizes)/sizeof(bulk_sizes[0]); sz++) {
-		const uint64_t sc_start = rte_rdtsc();
-		for (i = 0; i < iterations; i++) {
-			rte_ring_sp_enqueue_bulk(r, burst, bulk_sizes[sz]);
-			rte_ring_sc_dequeue_bulk(r, burst, bulk_sizes[sz]);
-		}
-		const uint64_t sc_end = rte_rdtsc();
-
-		const uint64_t mc_start = rte_rdtsc();
-		for (i = 0; i < iterations; i++) {
-			rte_ring_mp_enqueue_bulk(r, burst, bulk_sizes[sz]);
-			rte_ring_mc_dequeue_bulk(r, burst, bulk_sizes[sz]);
-		}
-		const uint64_t mc_end = rte_rdtsc();
-
-		double sc_avg = ((double)(sc_end-sc_start) /
-				(iterations * bulk_sizes[sz]));
-		double mc_avg = ((double)(mc_end-mc_start) /
-				(iterations * bulk_sizes[sz]));
-
-		printf("SP/SC bulk enq/dequeue (size: %u): %.2F\n", bulk_sizes[sz],
-				sc_avg);
-		printf("MP/MC bulk enq/dequeue (size: %u): %.2F\n", bulk_sizes[sz],
-				mc_avg);
-	}
-}
-
-static int
-test_ring_perf(void)
-{
-	struct lcore_pair cores;
-	r = rte_ring_create(RING_NAME, RING_SIZE, rte_socket_id(), 0);
-	if (r == NULL && (r = rte_ring_lookup(RING_NAME)) == NULL)
-		return -1;
-
-	printf("### Testing single element and burst enq/deq ###\n");
-	test_single_enqueue_dequeue();
-	test_burst_enqueue_dequeue();
-
-	printf("\n### Testing empty dequeue ###\n");
-	test_empty_dequeue();
-
-	printf("\n### Testing using a single lcore ###\n");
-	test_bulk_enqueue_dequeue();
-
-	if (get_two_hyperthreads(&cores) == 0) {
-		printf("\n### Testing using two hyperthreads ###\n");
-		run_on_core_pair(&cores, enqueue_bulk, dequeue_bulk);
-	}
-	if (get_two_cores(&cores) == 0) {
-		printf("\n### Testing using two physical cores ###\n");
-		run_on_core_pair(&cores, enqueue_bulk, dequeue_bulk);
-	}
-	if (get_two_sockets(&cores) == 0) {
-		printf("\n### Testing using two NUMA nodes ###\n");
-		run_on_core_pair(&cores, enqueue_bulk, dequeue_bulk);
-	}
-	return 0;
-}
-
-REGISTER_TEST_COMMAND(ring_perf_autotest, test_ring_perf);