1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
/* Copyright (c) 2016, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP ring stress test
*/
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <odp_api.h>
#include <odp/helper/odph_api.h>
#include <odp_packet_io_ring_internal.h>
#include <test_debug.h>
#include <odp_cunit_common.h>
#include "ring_suites.h"
/* There's even number of producer and consumer threads and each thread does
* this many successful enq or deq operations */
#define NUM_BULK_OP ((RING_SIZE / PIECE_BULK) * 100)
/*
* Since cunit framework cannot work with multi-threading, ask workers
* to save their results for delayed assertion after thread collection.
*/
static int worker_results[MAX_WORKERS];
/*
* Note : make sure that both enqueue and dequeue
* operation starts at same time so to avoid data corruption
* Its because atomic lock will protect only indexes, but if order of
* read or write operation incorrect then data mismatch will happen
* So its resposibility of application develop to take care of order of
* data read or write.
*/
typedef enum {
STRESS_1_1_PRODUCER_CONSUMER,
STRESS_1_N_PRODUCER_CONSUMER,
STRESS_N_1_PRODUCER_CONSUMER,
STRESS_N_M_PRODUCER_CONSUMER
} stress_case_t;
/* worker function declarations */
static int stress_worker(void *_data);
/* global name for later look up in workers' context */
static const char *ring_name = "stress_ring";
/* barrier to run threads at the same time */
static odp_barrier_t barrier;
int ring_test_stress_start(void)
{
_ring_t *r_stress = NULL;
/* multiple thread usage scenario, thread or process sharable */
r_stress = _ring_create(ring_name, RING_SIZE, _RING_SHM_PROC);
if (r_stress == NULL) {
LOG_ERR("create ring failed for stress.\n");
return -1;
}
return 0;
}
int ring_test_stress_end(void)
{
_ring_destroy(ring_name);
return 0;
}
void ring_test_stress_1_1_producer_consumer(void)
{
int i = 0;
odp_cpumask_t cpus;
pthrd_arg worker_param;
/* reset results for delayed assertion */
memset(worker_results, 0, sizeof(worker_results));
/* request 2 threads to run 1:1 stress */
worker_param.numthrds = odp_cpumask_default_worker(&cpus, 2);
worker_param.testcase = STRESS_1_1_PRODUCER_CONSUMER;
/* not failure, insufficient resource */
if (worker_param.numthrds < 2) {
LOG_ERR("insufficient cpu for 1:1 "
"producer/consumer stress.\n");
return;
}
odp_barrier_init(&barrier, 2);
/* kick the workers */
odp_cunit_thread_create(stress_worker, &worker_param);
/* collect the results */
odp_cunit_thread_exit(&worker_param);
/* delayed assertion due to cunit limitation */
for (i = 0; i < worker_param.numthrds; i++)
CU_ASSERT(0 == worker_results[i]);
}
void ring_test_stress_N_M_producer_consumer(void)
{
int i = 0;
odp_cpumask_t cpus;
pthrd_arg worker_param;
/* reset results for delayed assertion */
memset(worker_results, 0, sizeof(worker_results));
/* request MAX_WORKERS threads to run N:M stress */
worker_param.numthrds =
odp_cpumask_default_worker(&cpus, MAX_WORKERS);
worker_param.testcase = STRESS_N_M_PRODUCER_CONSUMER;
/* not failure, insufficient resource */
if (worker_param.numthrds < 3) {
LOG_ERR("insufficient cpu for N:M "
"producer/consumer stress.\n");
return;
}
/* force even number of threads */
if (worker_param.numthrds & 0x1)
worker_param.numthrds -= 1;
odp_barrier_init(&barrier, worker_param.numthrds);
/* kick the workers */
odp_cunit_thread_create(stress_worker, &worker_param);
/* collect the results */
odp_cunit_thread_exit(&worker_param);
/* delayed assertion due to cunit limitation */
for (i = 0; i < worker_param.numthrds; i++)
CU_ASSERT(0 == worker_results[i]);
}
void ring_test_stress_1_N_producer_consumer(void)
{
}
void ring_test_stress_N_1_producer_consumer(void)
{
}
void ring_test_stress_ring_list_dump(void)
{
/* improve code coverage */
_ring_list_dump();
}
/* worker function for multiple producer instances */
static int do_producer(_ring_t *r)
{
void *enq[PIECE_BULK];
int i;
int num = NUM_BULK_OP;
/* data pattern to be evaluated later in consumer */
for (i = 0; i < PIECE_BULK; i++)
enq[i] = (void *)(uintptr_t)i;
while (num)
if (_ring_mp_enqueue_bulk(r, enq, PIECE_BULK) == 0)
num--;
return 0;
}
/* worker function for multiple consumer instances */
static int do_consumer(_ring_t *r)
{
void *deq[PIECE_BULK];
int i;
int num = NUM_BULK_OP;
while (num) {
if (_ring_mc_dequeue_bulk(r, deq, PIECE_BULK) == 0) {
num--;
/* evaluate the data pattern */
for (i = 0; i < PIECE_BULK; i++)
CU_ASSERT(deq[i] == (void *)(uintptr_t)i);
}
}
return 0;
}
static int stress_worker(void *_data)
{
pthrd_arg *worker_param = (pthrd_arg *)_data;
_ring_t *r_stress = NULL;
int *result = NULL;
int worker_id = odp_thread_id();
/* save the worker result for delayed assertion */
result = &worker_results[(worker_id % worker_param->numthrds)];
/* verify ring lookup in worker context */
r_stress = _ring_lookup(ring_name);
if (NULL == r_stress) {
LOG_ERR("ring lookup %s not found\n", ring_name);
return (*result = -1);
}
odp_barrier_wait(&barrier);
switch (worker_param->testcase) {
case STRESS_1_1_PRODUCER_CONSUMER:
case STRESS_N_M_PRODUCER_CONSUMER:
/* interleaved producer/consumer */
if (0 == (worker_id % 2))
*result = do_producer(r_stress);
else if (1 == (worker_id % 2))
*result = do_consumer(r_stress);
break;
case STRESS_1_N_PRODUCER_CONSUMER:
case STRESS_N_1_PRODUCER_CONSUMER:
default:
LOG_ERR("invalid or not-implemented stress type (%d)\n",
worker_param->testcase);
break;
}
odp_barrier_wait(&barrier);
return 0;
}
|
