2 This file is part of GNUnet.
3 (C) 2010-2013 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file ats-tests/gnunet-ats-sim.c
22 * @brief ats traffic simulator: this tool uses the ats-test library to setup a
23 * topology and generate traffic between these peers. The traffic description
24 * is loaded from a experiment description file
25 * @author Christian Grothoff
26 * @author Matthias Wachs
29 #include "gnunet_util_lib.h"
30 #include "gnunet_testbed_service.h"
31 #include "gnunet_ats_service.h"
32 #include "gnunet_core_service.h"
33 #include "ats-testing.h"
35 #define TEST_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
37 static struct BenchmarkPeer *masters_p;
38 static struct BenchmarkPeer *slaves_p;
41 * cmd option -e: experiment file
43 static char *opt_exp_file;
46 * cmd option -l: enable logging
51 * cmd option -p: enable plots
56 * cmd option -v: verbose logs
58 static int opt_verbose;
60 struct GNUNET_SCHEDULER_Task * timeout_task;
63 struct LoggingHandle *l;
66 evaluate (struct GNUNET_TIME_Relative duration_total)
70 unsigned int duration;
71 struct BenchmarkPeer *mp;
72 struct BenchmarkPartner *p;
74 unsigned int b_sent_sec;
75 double kb_sent_percent;
76 unsigned int b_recv_sec;
77 double kb_recv_percent;
81 duration = (duration_total.rel_value_us / (1000 * 1000));
82 for (c_m = 0; c_m < e->num_masters; c_m++)
86 _("Master [%u]: sent: %u KiB in %u sec. = %u KiB/s, received: %u KiB in %u sec. = %u KiB/s\n"),
87 mp->no, mp->total_bytes_sent / 1024, duration,
88 (mp->total_bytes_sent / 1024) / duration,
89 mp->total_bytes_received / 1024, duration,
90 (mp->total_bytes_received / 1024) / duration);
92 for (c_s = 0; c_s < e->num_slaves; c_s++)
94 p = &mp->partners[c_s];
98 kb_sent_percent = 0.0;
99 kb_recv_percent = 0.0;
104 b_sent_sec = p->bytes_sent / duration;
105 b_recv_sec = p->bytes_received / duration;
108 if (mp->total_bytes_sent > 0)
109 kb_sent_percent = ((double) p->bytes_sent * 100) / mp->total_bytes_sent;
110 if (mp->total_bytes_received > 0)
111 kb_recv_percent = ((double) p->bytes_received * 100) / mp->total_bytes_received;
112 if (1000 * p->messages_sent > 0)
113 rtt = p->total_app_rtt / (1000 * p->messages_sent);
115 "%c Master [%u] -> Slave [%u]: sent %u Bips (%.2f %%), received %u Bips (%.2f %%)\n",
116 (mp->pref_partner == p->dest) ? '*' : ' ',
118 b_sent_sec, kb_sent_percent,
119 b_recv_sec, kb_recv_percent);
121 "%c Master [%u] -> Slave [%u]: Average application layer RTT: %u ms\n",
122 (mp->pref_partner == p->dest) ? '*' : ' ',
123 mp->no, p->dest->no, rtt);
131 fprintf (stderr, "Shutdown\n");
135 GNUNET_ATS_TEST_logging_stop (l);
136 GNUNET_ATS_TEST_logging_clean_up (l);
140 /* Stop traffic generation */
141 GNUNET_ATS_TEST_generate_traffic_stop_all();
143 /* Stop all preference generations */
144 GNUNET_ATS_TEST_generate_preferences_stop_all ();
148 GNUNET_ATS_TEST_experimentation_stop (e);
151 GNUNET_ATS_TEST_shutdown_topology ();
156 transport_recv_cb (void *cls,
157 const struct GNUNET_PeerIdentity * peer,
158 const struct GNUNET_MessageHeader * message)
164 log_request__cb (void *cls, const struct GNUNET_HELLO_Address *address,
165 int address_active, struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
166 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
167 const struct GNUNET_ATS_Information *ats, uint32_t ats_count)
173 //GNUNET_ATS_TEST_logging_now (l);
179 experiment_done_cb (struct Experiment *e, struct GNUNET_TIME_Relative duration,int success)
181 if (GNUNET_OK == success)
182 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Experiment done successful in %s\n",
183 GNUNET_STRINGS_relative_time_to_string (duration, GNUNET_YES));
185 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Experiment failed \n");
186 if (NULL != timeout_task)
188 GNUNET_SCHEDULER_cancel (timeout_task);
192 GNUNET_ATS_TEST_logging_stop (l);
194 /* Stop traffic generation */
195 GNUNET_ATS_TEST_generate_traffic_stop_all();
197 /* Stop all preference generations */
198 GNUNET_ATS_TEST_generate_preferences_stop_all ();
202 GNUNET_ATS_TEST_logging_write_to_file(l, opt_exp_file, opt_plot);
206 GNUNET_ATS_TEST_logging_stop (l);
207 GNUNET_ATS_TEST_logging_clean_up (l);
211 /* Clean up experiment */
212 GNUNET_ATS_TEST_experimentation_stop (e);
215 /* Shutdown topology */
216 GNUNET_ATS_TEST_shutdown_topology ();
220 episode_done_cb (struct Episode *ep)
222 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Episode %u done\n", ep->id);
225 static void topology_setup_done (void *cls,
226 struct BenchmarkPeer *masters,
227 struct BenchmarkPeer *slaves)
229 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Topology setup complete!\n");
234 l = GNUNET_ATS_TEST_logging_start (e->log_freq,
237 e->num_masters, e->num_slaves,
239 GNUNET_ATS_TEST_experimentation_run (e, &episode_done_cb, &experiment_done_cb);
241 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
242 GNUNET_ATS_TEST_TG_CONSTANT, 1, 1, GNUNET_TIME_UNIT_SECONDS,
243 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
244 GNUNET_ATS_PREFERENCE_BANDWIDTH);
247 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
248 GNUNET_ATS_TEST_TG_LINEAR, 1, 50,
249 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 2),
250 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
251 GNUNET_ATS_PREFERENCE_BANDWIDTH);
254 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
255 GNUNET_ATS_TEST_TG_RANDOM, 1, 50,
256 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 2),
257 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
258 GNUNET_ATS_PREFERENCE_BANDWIDTH);
261 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
262 GNUNET_ATS_TEST_TG_SINUS, 10, 5,
263 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5),
264 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
265 GNUNET_ATS_PREFERENCE_BANDWIDTH);
270 for (c_m = 0; c_m < e->num_masters; c_m++)
272 for (c_s = 0; c_s < e->num_slaves; c_s++)
274 /* Generate maximum traffic to all peers */
275 /* Example: Generate traffic with constant 10,000 Bytes/s */
276 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
277 &masters[c_m].partners[c_s],
278 GNUNET_ATS_TEST_TG_CONSTANT,
280 GNUNET_TIME_UNIT_FOREVER_REL);
281 /* Example: Generate traffic with an increasing rate from 1000 to 2000
282 * Bytes/s with in a minute */
283 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
284 &masters[c_m].partners[c_s],
285 GNUNET_ATS_TEST_TG_LINEAR,
288 GNUNET_TIME_UNIT_MINUTES,
289 GNUNET_TIME_UNIT_FOREVER_REL);
290 /* Example: Generate traffic with a random rate between 1000 to 2000
292 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
293 &masters[c_m].partners[c_s],
294 GNUNET_ATS_TEST_TG_RANDOM,
297 GNUNET_TIME_UNIT_FOREVER_REL,
298 GNUNET_TIME_UNIT_FOREVER_REL);
299 /* Example: Generate traffic with a sinus form, a base rate of
300 * 1000 Bytes/s, an amplitude of (max-base), and a period of 1 minute */
301 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
302 &masters[c_m].partners[c_s],
303 GNUNET_ATS_TEST_TG_SINUS,
306 GNUNET_TIME_UNIT_MINUTES,
307 GNUNET_TIME_UNIT_FOREVER_REL);
312 timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add (GNUNET_TIME_UNIT_MINUTES,
313 e->max_duration), &do_shutdown, NULL);
317 parse_args (int argc, char *argv[])
322 opt_plot = GNUNET_NO;
324 for (c = 0; c < argc; c++)
326 if ((c < (argc - 1)) && (0 == strcmp (argv[c], "-e")))
328 opt_exp_file = GNUNET_strdup ( argv[c + 1]);
330 if (0 == strcmp (argv[c], "-l"))
332 opt_log = GNUNET_YES;
334 if (0 == strcmp (argv[c], "-p"))
336 opt_plot = GNUNET_YES;
338 if (0 == strcmp (argv[c], "-v"))
340 opt_verbose = GNUNET_YES;
346 main (int argc, char *argv[])
348 GNUNET_log_setup("gnunet-ats-sim", "INFO", NULL);
350 parse_args (argc, argv);
351 if (NULL == opt_exp_file )
353 fprintf (stderr, "No experiment given...\n");
357 fprintf (stderr, "Loading experiment `%s' \n", opt_exp_file );
358 e = GNUNET_ATS_TEST_experimentation_load (opt_exp_file);
361 fprintf (stderr, "Invalid experiment\n");
364 if (0 == e->num_episodes)
366 fprintf (stderr, "No episodes included\n");
370 /* Setup a topology with */
371 GNUNET_ATS_TEST_create_topology ("gnunet-ats-sim", e->cfg_file,
375 &topology_setup_done,
379 GNUNET_free (opt_exp_file);
382 /* end of file gnunet-ats-sim.c */