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-rw-r--r--src/examples/benchmark.c147
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diff --git a/src/examples/benchmark.c b/src/examples/benchmark.c
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1/*
2 This file is part of libmicrohttpd
3 (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#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>"
29
30
31#define SMALL (1024 * 128)
32
33/**
34 * Number of threads to run in the thread pool. Should (roughly) match
35 * the number of cores on your system.
36 */
37#define NUMBER_OF_THREADS 4
38
39static unsigned int small_deltas[SMALL];
40
41static struct MHD_Response *response;
42
43
44
45/**
46 * Signature of the callback used by MHD to notify the
47 * application about completed requests.
48 *
49 * @param cls client-defined closure
50 * @param connection connection handle
51 * @param con_cls value as set by the last call to
52 * the MHD_AccessHandlerCallback
53 * @param toe reason for request termination
54 * @see MHD_OPTION_NOTIFY_COMPLETED
55 */
56static void
57completed_callback (void *cls,
58 struct MHD_Connection *connection,
59 void **con_cls,
60 enum MHD_RequestTerminationCode toe)
61{
62 struct timeval *tv = *con_cls;
63 struct timeval tve;
64 uint64_t delta;
65
66 if (NULL == tv)
67 return;
68 gettimeofday (&tve, NULL);
69
70 delta = 0;
71 if (tve.tv_usec >= tv->tv_usec)
72 delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
73 + (tve.tv_usec - tv->tv_usec);
74 else
75 delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
76 - tv->tv_usec + tve.tv_usec;
77 if (delta < SMALL)
78 small_deltas[delta]++;
79 else
80 fprintf (stdout, "D: %llu 1\n", (unsigned long long) delta);
81 free (tv);
82}
83
84
85static void *
86uri_logger_cb (void *cls,
87 const char *uri)
88{
89 struct timeval *tv = malloc (sizeof (struct timeval));
90
91 if (NULL != tv)
92 gettimeofday (tv, NULL);
93 return tv;
94}
95
96
97static int
98ahc_echo (void *cls,
99 struct MHD_Connection *connection,
100 const char *url,
101 const char *method,
102 const char *version,
103 const char *upload_data, size_t *upload_data_size, void **ptr)
104{
105 if (0 != strcmp (method, "GET"))
106 return MHD_NO; /* unexpected method */
107 return MHD_queue_response (connection, MHD_HTTP_OK, response);
108}
109
110
111int
112main (int argc, char *const *argv)
113{
114 struct MHD_Daemon *d;
115 unsigned int i;
116
117 if (argc != 2)
118 {
119 printf ("%s PORT\n", argv[0]);
120 return 1;
121 }
122 response = MHD_create_response_from_buffer (strlen (PAGE),
123 (void *) PAGE,
124 MHD_RESPMEM_PERSISTENT);
125
126 d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY
127#if ! EPOLL_SUPPORT
128 | MHD_USE_EPOLL_LINUX_ONLY
129#endif
130 ,
131 atoi (argv[1]),
132 NULL, NULL, &ahc_echo, NULL,
133 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120,
134 MHD_OPTION_THREAD_POOL_SIZE, (unsigned int) NUMBER_OF_THREADS,
135 MHD_OPTION_URI_LOG_CALLBACK, &uri_logger_cb, NULL,
136 MHD_OPTION_NOTIFY_COMPLETED, &completed_callback, NULL,
137 MHD_OPTION_END);
138 if (d == NULL)
139 return 1;
140 (void) getc (stdin);
141 MHD_stop_daemon (d);
142 MHD_destroy_response (response);
143 for (i=0;i<SMALL;i++)
144 if (0 != small_deltas[i])
145 fprintf (stdout, "D: %d %u\n", i, small_deltas[i]);
146 return 0;
147}