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13 Affero General Public License for more details.
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18 SPDX-License-Identifier: AGPL3.0-or-later
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, \
38 static struct BenchmarkPeer *masters_p;
39 static struct BenchmarkPeer *slaves_p;
42 * cmd option -e: experiment file
44 static char *opt_exp_file;
47 * cmd option -l: enable logging
52 * cmd option -p: enable plots
57 * cmd option -v: verbose logs
59 static int opt_verbose;
61 static struct GNUNET_SCHEDULER_Task *timeout_task;
63 static struct Experiment *e;
65 static struct LoggingHandle *l;
69 evaluate (struct GNUNET_TIME_Relative duration_total)
73 unsigned int duration;
74 struct BenchmarkPeer *mp;
75 struct BenchmarkPartner *p;
77 unsigned int b_sent_sec;
78 double kb_sent_percent;
79 unsigned int b_recv_sec;
80 double kb_recv_percent;
84 duration = (duration_total.rel_value_us / (1000 * 1000));
87 for (c_m = 0; c_m < e->num_masters; c_m++)
92 "Master [%u]: sent: %u KiB in %u sec. = %u KiB/s, received: %u KiB in %u sec. = %u KiB/s\n"),
93 mp->no, mp->total_bytes_sent / 1024,
95 (mp->total_bytes_sent / 1024) / duration,
96 mp->total_bytes_received / 1024,
98 (mp->total_bytes_received / 1024) / duration);
100 for (c_s = 0; c_s < e->num_slaves; c_s++)
102 p = &mp->partners[c_s];
106 kb_sent_percent = 0.0;
107 kb_recv_percent = 0.0;
112 b_sent_sec = p->bytes_sent / duration;
113 b_recv_sec = p->bytes_received / duration;
116 if (mp->total_bytes_sent > 0)
117 kb_sent_percent = ((double) p->bytes_sent * 100) / mp->total_bytes_sent;
118 if (mp->total_bytes_received > 0)
119 kb_recv_percent = ((double) p->bytes_received * 100)
120 / mp->total_bytes_received;
121 if (1000 * p->messages_sent > 0)
122 rtt = p->total_app_rtt / (1000 * p->messages_sent);
124 "%c Master [%u] -> Slave [%u]: sent %u Bips (%.2f %%), received %u Bips (%.2f %%)\n",
125 (mp->pref_partner == p->dest) ? '*' : ' ',
127 b_sent_sec, kb_sent_percent,
128 b_recv_sec, kb_recv_percent);
130 "%c Master [%u] -> Slave [%u]: Average application layer RTT: %u ms\n",
131 (mp->pref_partner == p->dest) ? '*' : ' ',
132 mp->no, p->dest->no, rtt);
139 do_shutdown (void *cls)
141 fprintf (stderr, "Shutdown\n");
142 if (NULL != timeout_task)
144 GNUNET_SCHEDULER_cancel (timeout_task);
149 GNUNET_ATS_TEST_logging_stop (l);
150 GNUNET_ATS_TEST_logging_clean_up (l);
154 /* Stop traffic generation */
155 GNUNET_ATS_TEST_generate_traffic_stop_all ();
157 /* Stop all preference generations */
158 GNUNET_ATS_TEST_generate_preferences_stop_all ();
162 GNUNET_ATS_TEST_experimentation_stop (e);
165 GNUNET_ATS_TEST_shutdown_topology ();
170 do_timeout (void *cls)
173 GNUNET_SCHEDULER_shutdown ();
178 log_request__cb (void *cls,
179 const struct GNUNET_HELLO_Address *address,
181 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
182 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
183 const struct GNUNET_ATS_Properties *ats)
188 // GNUNET_ATS_TEST_logging_now (l);
194 experiment_done_cb (struct Experiment *e,
195 struct GNUNET_TIME_Relative duration,
198 if (GNUNET_OK == success)
199 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
200 "Experiment done successful in %s\n",
201 GNUNET_STRINGS_relative_time_to_string (duration,
204 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Experiment failed \n");
207 GNUNET_ATS_TEST_logging_stop (l);
209 /* Stop traffic generation */
210 GNUNET_ATS_TEST_generate_traffic_stop_all ();
212 /* Stop all preference generations */
213 GNUNET_ATS_TEST_generate_preferences_stop_all ();
217 GNUNET_ATS_TEST_logging_write_to_file (l, opt_exp_file, opt_plot);
218 GNUNET_SCHEDULER_shutdown ();
223 episode_done_cb (struct Episode *ep)
225 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
232 topology_setup_done (void *cls,
233 struct BenchmarkPeer *masters,
234 struct BenchmarkPeer *slaves)
236 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
237 "Topology setup complete!\n");
242 l = GNUNET_ATS_TEST_logging_start (e->log_freq,
245 e->num_masters, e->num_slaves,
247 GNUNET_ATS_TEST_experimentation_run (e,
249 &experiment_done_cb);
251 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
252 GNUNET_ATS_TEST_TG_CONSTANT, 1, 1, GNUNET_TIME_UNIT_SECONDS,
253 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
254 GNUNET_ATS_PREFERENCE_BANDWIDTH);
257 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
258 GNUNET_ATS_TEST_TG_LINEAR, 1, 50,
259 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 2),
260 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
261 GNUNET_ATS_PREFERENCE_BANDWIDTH);
264 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
265 GNUNET_ATS_TEST_TG_RANDOM, 1, 50,
266 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 2),
267 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
268 GNUNET_ATS_PREFERENCE_BANDWIDTH);
271 GNUNET_ATS_TEST_generate_preferences_start(&masters[0],&masters[0].partners[0],
272 GNUNET_ATS_TEST_TG_SINUS, 10, 5,
273 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5),
274 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 250),
275 GNUNET_ATS_PREFERENCE_BANDWIDTH);
280 for (c_m = 0; c_m < e->num_masters; c_m++)
282 for (c_s = 0; c_s < e->num_slaves; c_s++)
284 /* Generate maximum traffic to all peers */
285 /* Example: Generate traffic with constant 10,000 Bytes/s */
286 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
287 &masters[c_m].partners[c_s],
288 GNUNET_ATS_TEST_TG_CONSTANT,
290 GNUNET_TIME_UNIT_FOREVER_REL);
291 /* Example: Generate traffic with an increasing rate from 1000 to 2000
292 * Bytes/s with in a minute */
293 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
294 &masters[c_m].partners[c_s],
295 GNUNET_ATS_TEST_TG_LINEAR,
298 GNUNET_TIME_UNIT_MINUTES,
299 GNUNET_TIME_UNIT_FOREVER_REL);
300 /* Example: Generate traffic with a random rate between 1000 to 2000
302 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
303 &masters[c_m].partners[c_s],
304 GNUNET_ATS_TEST_TG_RANDOM,
307 GNUNET_TIME_UNIT_FOREVER_REL,
308 GNUNET_TIME_UNIT_FOREVER_REL);
309 /* Example: Generate traffic with a sinus form, a base rate of
310 * 1000 Bytes/s, an amplitude of (max-base), and a period of 1 minute */
311 GNUNET_ATS_TEST_generate_traffic_start (&masters[c_m],
312 &masters[c_m].partners[c_s],
313 GNUNET_ATS_TEST_TG_SINUS,
316 GNUNET_TIME_UNIT_MINUTES,
317 GNUNET_TIME_UNIT_FOREVER_REL);
323 = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add (
324 GNUNET_TIME_UNIT_MINUTES,
328 GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
333 parse_args (int argc, char *argv[])
339 opt_plot = GNUNET_NO;
341 for (c = 0; c < argc; c++)
343 if ((c < (argc - 1)) && (0 == strcmp (argv[c], "-e")))
345 GNUNET_free_non_null (opt_exp_file);
346 opt_exp_file = GNUNET_strdup (argv[c + 1]);
348 if (0 == strcmp (argv[c], "-l"))
350 opt_log = GNUNET_YES;
352 if (0 == strcmp (argv[c], "-p"))
354 opt_plot = GNUNET_YES;
356 if (0 == strcmp (argv[c], "-v"))
358 opt_verbose = GNUNET_YES;
365 main (int argc, char *argv[])
367 GNUNET_log_setup ("gnunet-ats-sim", "INFO", NULL);
369 parse_args (argc, argv);
370 if (NULL == opt_exp_file)
372 fprintf (stderr, "No experiment given...\n");
376 fprintf (stderr, "Loading experiment `%s' \n", opt_exp_file);
377 e = GNUNET_ATS_TEST_experimentation_load (opt_exp_file);
380 fprintf (stderr, "Invalid experiment\n");
383 if (0 == e->num_episodes)
385 fprintf (stderr, "No episodes included\n");
389 /* Setup a topology with */
390 GNUNET_ATS_TEST_create_topology ("gnunet-ats-sim", e->cfg_file,
394 &topology_setup_done,
397 GNUNET_free (opt_exp_file);
400 /* end of file gnunet-ats-sim.c */