ceph/src/spdk/test/lib/event/reactor_perf/reactor_perf.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) Intel Corporation.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <inttypes.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38
  39 #include "spdk/env.h"
  40 #include "spdk/event.h"
  41
  42 static int g_time_in_sec;
  43 static int g_queue_depth;
  44 static struct spdk_poller *test_end_poller;
  45 static uint64_t g_call_count = 0;
  46
  47 static void
  48 __test_end(void *arg)
  49 {
  50         printf("test_end\n");
  51         spdk_app_stop(0);
  52 }
  53
  54 static void
  55 __submit_next(void *arg1, void *arg2)
  56 {
  57         struct spdk_event *event;
  58
  59         g_call_count++;
  60
  61         event = spdk_event_allocate(spdk_env_get_current_core(),
  62                                     __submit_next, NULL, NULL);
  63         spdk_event_call(event);
  64 }
  65
  66 static void
  67 test_start(void *arg1, void *arg2)
  68 {
  69         int i;
  70
  71         printf("test_start\n");
  72
  73         /* Register a poller that will stop the test after the time has elapsed. */
  74         spdk_poller_register(&test_end_poller, __test_end, NULL,
  75                              spdk_env_get_current_core(),
  76                              g_time_in_sec * 1000000ULL);
  77
  78         for (i = 0; i < g_queue_depth; i++) {
  79                 __submit_next(NULL, NULL);
  80         }
  81 }
  82
  83 static void
  84 test_cleanup(void)
  85 {
  86         printf("test_abort\n");
  87
  88         spdk_poller_unregister(&test_end_poller, NULL);
  89         spdk_app_stop(0);
  90 }
  91
  92 static void
  93 usage(const char *program_name)
  94 {
  95         printf("%s options\n", program_name);
  96         printf("\t[-d Allowed delay when passing messages between cores in microseconds]\n");
  97         printf("\t[-q Queue depth (default: 1)]\n");
  98         printf("\t[-t time in seconds]\n");
  99 }
 100
 101 int
 102 main(int argc, char **argv)
 103 {
 104         struct spdk_app_opts opts;
 105         int op;
 106
 107         spdk_app_opts_init(&opts);
 108         opts.name = "reactor_perf";
 109         opts.max_delay_us = 1000;
 110
 111         g_time_in_sec = 0;
 112         g_queue_depth = 1;
 113
 114         while ((op = getopt(argc, argv, "d:q:t:")) != -1) {
 115                 switch (op) {
 116                 case 'd':
 117                         opts.max_delay_us = atoi(optarg);
 118                         break;
 119                 case 'q':
 120                         g_queue_depth = atoi(optarg);
 121                         break;
 122                 case 't':
 123                         g_time_in_sec = atoi(optarg);
 124                         break;
 125                 default:
 126                         usage(argv[0]);
 127                         exit(1);
 128                 }
 129         }
 130
 131         if (!g_time_in_sec) {
 132                 usage(argv[0]);
 133                 exit(1);
 134         }
 135
 136         optind = 1;
 137
 138         opts.shutdown_cb = test_cleanup;
 139
 140         spdk_app_init(&opts);
 141
 142         spdk_app_start(test_start, NULL, NULL);
 143
 144         spdk_app_fini();
 145
 146         printf("Performance: %8ju events per second\n", g_call_count / g_time_in_sec);
 147
 148         return 0;
 149 }