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
|
/*
This file is part of GNUnet.
(C) 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file fs/gnunet-fs-profiler.c
* @brief tool to benchmark/profile file-sharing
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_testbed_service.h"
/**
* Final status code.
*/
static int ret;
/**
* Data file with the hosts for the testbed.
*/
static char *host_filename;
/**
* Number of peers to run in the experiment.
*/
static unsigned int num_peers;
/**
* After how long do we abort the test?
*/
static struct GNUNET_TIME_Relative timeout;
/**
* Handle to the task run during termination.
*/
static GNUNET_SCHEDULER_TaskIdentifier terminate_taskid;
/**
* Function called after we've collected the statistics.
*
* @param cls NULL
* @param op the operation that has been finished
* @param emsg error message in case the operation has failed; will be NULL if
* operation has executed successfully.
*/
static void
shutdown_task (void *cls,
struct GNUNET_TESTBED_Operation *op,
const char *emsg)
{
if (NULL != emsg)
fprintf (stderr,
"Error collecting statistics: %s\n",
emsg);
GNUNET_SCHEDULER_shutdown ();
}
/**
* Callback function to process statistic values from all peers.
* Prints them out.
*
* @param cls closure
* @param peer the peer the statistic belong to
* @param subsystem name of subsystem that created the statistic
* @param name the name of the datum
* @param value the current value
* @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
* @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
*/
static int
process_stats (void *cls,
const struct GNUNET_TESTBED_Peer *peer,
const char *subsystem,
const char *name,
uint64_t value,
int is_persistent)
{
fprintf (stdout,
"%p-%s: %s = %llu\n",
peer,
subsystem,
name,
(unsigned long long) value);
return GNUNET_OK;
}
/**
* Task run on timeout to terminate. Triggers printing out
* all statistics.
*
* @param cls NULL
* @param tc unused
*/
static void
terminate_task (void *cls,
const struct GNUNET_SCHEDULER_TaskContext *tc)
{
terminate_taskid = GNUNET_SCHEDULER_NO_TASK;
GNUNET_TESTBED_get_statistics (0, NULL,
&process_stats,
&shutdown_task,
NULL);
}
/**
* Signature of a main function for a testcase.
*
* @param cls closure
* @param num_peers number of peers in 'peers'
* @param peers handle to peers run in the testbed
*/
static void
test_master (void *cls, unsigned int num_peers, struct GNUNET_TESTBED_Peer **peers)
{
// const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
// FIXME: enable clients to signal 'completion' before timeout;
// in that case, run the 'terminate_task' "immediately"
if (0 != timeout.rel_value)
terminate_taskid = GNUNET_SCHEDULER_add_delayed (timeout,
&terminate_task, NULL);
else
terminate_taskid = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
&terminate_task,
NULL);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param cfg configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
GNUNET_TESTBED_run (host_filename,
cfg,
num_peers,
0, NULL, NULL,
&test_master, (void *) cfg);
}
/**
* Program to run a file-sharing testbed.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
{'n', "num-peers", "COUNT",
gettext_noop ("run the experiment with COUNT peers"),
1, &GNUNET_GETOPT_set_uint, &num_peers},
{'H', "hosts", "HOSTFILE",
gettext_noop ("specifies name of a file with the HOSTS the testbed should use"),
1, &GNUNET_GETOPT_set_string, &host_filename},
{'t', "timeout", "DELAY",
gettext_noop ("automatically terminate experiment after DELAY"),
1, &GNUNET_GETOPT_set_relative_time, &timeout},
GNUNET_GETOPT_OPTION_END
};
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 2;
ret = (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-fs-profiler",
gettext_noop ("run a testbed to measure file-sharing performance"), options, &run,
NULL)) ? ret : 1;
GNUNET_free ((void*) argv);
return ret;
}
/* end of gnunet-fs-profiler.c */
|
