-benchmark for latency measurements and epoll demonstration

author: Christian Grothoff <christian@grothoff.org> 2013-06-23 10:50:05 +0000
committer: Christian Grothoff <christian@grothoff.org> 2013-06-23 10:50:05 +0000
commit: 3fb6d911e938e5fb4e1be0a6494d181b3b6711a5 (patch)
tree: 395653926eaf15c23f9247ccf85a33599eff0564 /src/examples/benchmark.c
parent: efbf50c0d22b0c27088d05b707773433371cc9c1 (diff)
download: libmicrohttpd-3fb6d911e938e5fb4e1be0a6494d181b3b6711a5.tar.gz
libmicrohttpd-3fb6d911e938e5fb4e1be0a6494d181b3b6711a5.zip
1 files changed, 147 insertions, 0 deletions
diff --git a/src/examples/benchmark.c b/src/examples/benchmark.c
new file mode 100644
index 00000000..711d118a
--- /dev/null
+++ b/src/examples/benchmark.c
@@ -0,0 +1,147 @@
+/*
+     This file is part of libmicrohttpd
+     (C) 2007, 2013 Christian Grothoff (and other contributing authors)
+     This library is free software; you can redistribute it and/or
+     modify it under the terms of the GNU Lesser General Public
+     License as published by the Free Software Foundation; either
+     version 2.1 of the License, or (at your option) any later version.
+     This library is distributed in the hope that it will be useful,
+     but WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     Lesser General Public License for more details.
+     You should have received a copy of the GNU Lesser General Public
+     License along with this library; if not, write to the Free Software
+     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+/**
+ * @file benchmark.c
+ * @brief minimal code to benchmark MHD GET performance
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <microhttpd.h>
+#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>"
+#define SMALL (1024 * 128)
+/**
+ * Number of threads to run in the thread pool.  Should (roughly) match
+ * the number of cores on your system.
+ */
+#define NUMBER_OF_THREADS 4
+static unsigned int small_deltas[SMALL];
+static struct MHD_Response *response;
+/**
+ * Signature of the callback used by MHD to notify the
+ * application about completed requests.
+ *
+ * @param cls client-defined closure
+ * @param connection connection handle
+ * @param con_cls value as set by the last call to
+ *        the MHD_AccessHandlerCallback
+ * @param toe reason for request termination
+ * @see MHD_OPTION_NOTIFY_COMPLETED
+ */
+static void
+completed_callback (void *cls,
+                    struct MHD_Connection *connection,
+                    void **con_cls,
+                    enum MHD_RequestTerminationCode toe)
+{
+  struct timeval *tv = *con_cls;
+  struct timeval tve;
+  uint64_t delta;
+  if (NULL == tv)
+    return;
+  gettimeofday (&tve, NULL);
+  delta = 0;
+  if (tve.tv_usec >= tv->tv_usec)
+    delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
+      + (tve.tv_usec - tv->tv_usec);
+  else
+    delta += (tve.tv_sec - tv->tv_sec) * 1000000LL
+      - tv->tv_usec + tve.tv_usec;
+  if (delta < SMALL)
+    small_deltas[delta]++;
+  else
+    fprintf (stdout, "D: %llu 1\n", (unsigned long long) delta);
+  free (tv);
+}
+static void *
+uri_logger_cb (void *cls,
+               const char *uri)
+{
+  struct timeval *tv = malloc (sizeof (struct timeval));
+  if (NULL != tv)
+    gettimeofday (tv, NULL);
+  return tv;
+}
+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)
+{
+  if (0 != strcmp (method, "GET"))
+    return MHD_NO;              /* unexpected method */
+  return MHD_queue_response (connection, MHD_HTTP_OK, response);
+}
+int
+main (int argc, char *const *argv)
+{
+  struct MHD_Daemon *d;
+  unsigned int i;
+  if (argc != 2)
+    {
+      printf ("%s PORT\n", argv[0]);
+      return 1;
+    }
+  response = MHD_create_response_from_buffer (strlen (PAGE),
+                                              (void *) PAGE,
+                                              MHD_RESPMEM_PERSISTENT);
+  d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY 
+#if ! EPOLL_SUPPORT
+                        | MHD_USE_EPOLL_LINUX_ONLY
+#endif
+                        ,
+                        atoi (argv[1]),
+                        NULL, NULL, &ahc_echo, NULL,
+                        MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120,
+                        MHD_OPTION_THREAD_POOL_SIZE, (unsigned int) NUMBER_OF_THREADS,
+                        MHD_OPTION_URI_LOG_CALLBACK, &uri_logger_cb, NULL,
+                        MHD_OPTION_NOTIFY_COMPLETED, &completed_callback, NULL,
+                        MHD_OPTION_END);
+  if (d == NULL)
+    return 1;
+  (void) getc (stdin);
+  MHD_stop_daemon (d);
+  MHD_destroy_response (response);
+  for (i=0;i<SMALL;i++)
+    if (0 != small_deltas[i])
+      fprintf (stdout, "D: %d %u\n", i, small_deltas[i]);
+  return 0;
+}
author	Christian Grothoff <christian@grothoff.org>	2013-06-23 10:50:05 +0000
committer	Christian Grothoff <christian@grothoff.org>	2013-06-23 10:50:05 +0000
commit	3fb6d911e938e5fb4e1be0a6494d181b3b6711a5 (patch)
tree	395653926eaf15c23f9247ccf85a33599eff0564 /src/examples/benchmark.c
parent	efbf50c0d22b0c27088d05b707773433371cc9c1 (diff)
download	libmicrohttpd-3fb6d911e938e5fb4e1be0a6494d181b3b6711a5.tar.gz libmicrohttpd-3fb6d911e938e5fb4e1be0a6494d181b3b6711a5.zip

diff --git a/src/examples/benchmark.c b/src/examples/benchmark.c new file mode 100644 index 00000000..711d118a --- /dev/null +++ b/src/examples/benchmark.c
@@ -0,0 +1,147 @@
	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
	39	static unsigned int small_deltas[SMALL];
	40
	41	static 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	*/
	56	static void
	57	completed_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
	85	static void *
	86	uri_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
	97	static int
	98	ahc_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
	111	int
	112	main (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	}