1 /*
2 This file is part of libmicrohttpd
3 Copyright (C) 2007, 2013 Christian Grothoff (and other contributing authors)
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19 /**
20 * @file benchmark.c
21 * @brief minimal code to benchmark MHD GET performance
22 * @author Christian Grothoff
23 */
24
25 #include "platform.h"
26 #include <microhttpd.h>
27
28 #if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
29 #undef CPU_COUNT
30 #endif
31 #if !defined(CPU_COUNT)
32 #define CPU_COUNT 2
33 #endif
34
35 #define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>"
36
37
38 #define SMALL (1024 * 128)
39
40 /**
41 * Number of threads to run in the thread pool. Should (roughly) match
42 * the number of cores on your system.
43 */
44 #define NUMBER_OF_THREADS CPU_COUNT
45
46 static unsigned int small_deltas[SMALL];
47
48 static struct MHD_Response *response;
49
50
51
52 /**
53 * Signature of the callback used by MHD to notify the
54 * application about completed requests.
55 *
56 * @param cls client-defined closure
57 * @param connection connection handle
58 * @param con_cls value as set by the last call to
59 * the MHD_AccessHandlerCallback
60 * @param toe reason for request termination
61 * @see MHD_OPTION_NOTIFY_COMPLETED
62 */
63 static void
completed_callback(void * cls,struct MHD_Connection * connection,void ** con_cls,enum MHD_RequestTerminationCode toe)64 completed_callback (void *cls,
65 struct MHD_Connection *connection,
66 void **con_cls,
67 enum MHD_RequestTerminationCode toe)
68 {
69 struct timeval *tv = *con_cls;
70 struct timeval tve;
71 uint64_t delta;
72
73 if (NULL == tv)
74 return;
75 gettimeofday (&tve, NULL);
76
77 delta = 0;
78 if (tve.tv_usec >= tv->tv_usec)
79 delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
80 + (tve.tv_usec - tv->tv_usec);
81 else
82 delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
83 - tv->tv_usec + tve.tv_usec;
84 if (delta < SMALL)
85 small_deltas[delta]++;
86 else
87 fprintf (stdout, "D: %llu 1\n", (unsigned long long) delta);
88 free (tv);
89 }
90
91
92 static void *
uri_logger_cb(void * cls,const char * uri)93 uri_logger_cb (void *cls,
94 const char *uri)
95 {
96 struct timeval *tv = malloc (sizeof (struct timeval));
97
98 if (NULL != tv)
99 gettimeofday (tv, NULL);
100 return tv;
101 }
102
103
104 static int
ahc_echo(void * cls,struct MHD_Connection * connection,const char * url,const char * method,const char * version,const char * upload_data,size_t * upload_data_size,void ** ptr)105 ahc_echo (void *cls,
106 struct MHD_Connection *connection,
107 const char *url,
108 const char *method,
109 const char *version,
110 const char *upload_data, size_t *upload_data_size, void **ptr)
111 {
112 if (0 != strcmp (method, "GET"))
113 return MHD_NO; /* unexpected method */
114 return MHD_queue_response (connection, MHD_HTTP_OK, response);
115 }
116
117
118 int
main(int argc,char * const * argv)119 main (int argc, char *const *argv)
120 {
121 struct MHD_Daemon *d;
122 unsigned int i;
123
124 if (argc != 2)
125 {
126 printf ("%s PORT\n", argv[0]);
127 return 1;
128 }
129 response = MHD_create_response_from_buffer (strlen (PAGE),
130 (void *) PAGE,
131 MHD_RESPMEM_PERSISTENT);
132 #if 0
133 (void) MHD_add_response_header (response,
134 MHD_HTTP_HEADER_CONNECTION,
135 "close");
136 #endif
137 d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_SUPPRESS_DATE_NO_CLOCK
138 #if EPOLL_SUPPORT
139 | MHD_USE_EPOLL_LINUX_ONLY | MHD_USE_EPOLL_TURBO
140 #endif
141 ,
142 atoi (argv[1]),
143 NULL, NULL, &ahc_echo, NULL,
144 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120,
145 MHD_OPTION_THREAD_POOL_SIZE, (unsigned int) NUMBER_OF_THREADS,
146 MHD_OPTION_URI_LOG_CALLBACK, &uri_logger_cb, NULL,
147 MHD_OPTION_NOTIFY_COMPLETED, &completed_callback, NULL,
148 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 1000,
149 MHD_OPTION_END);
150 if (d == NULL)
151 return 1;
152 (void) getc (stdin);
153 MHD_stop_daemon (d);
154 MHD_destroy_response (response);
155 for (i=0;i<SMALL;i++)
156 if (0 != small_deltas[i])
157 fprintf (stdout, "D: %d %u\n", i, small_deltas[i]);
158 return 0;
159 }
160