2 This file is part of GNUnet.
3 (C) 2010, 2011 Christian Grothoff (and other contributing authors)
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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
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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.
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22 * @file fs/perf_gnunet_service_fs_p2p_trust.c
23 * @brief profile P2P routing trust mechanism. Creates
24 * a clique of NUM_DAEMONS (i.e. 3) where two
25 * peers share (seed) different files and download
26 * them from each other while all the other peers
27 * just "leach" those files. Ideally, the seeders
28 * "learn" that they contribute (to each other),
29 * and give the other seeder higher priority;
30 * naturally, this only happens nicely for larger
31 * files; finally, once the seeders are done, the
32 * leachers should see fast download rates as well.
33 * @author Christian Grothoff
36 * - 10 MB, 3 peers, with delays:
37 * Download speed of type `seeder 1' was 757 KiB/s
38 * Download speed of type `seeder 2' was 613 KiB/s
39 * Download speed of type `leach` was 539 KiB/s
41 * - 10 MB, 3 peers, without delays:
42 * Download speed of type `seeder 1' was 1784 KiB/s
43 * Download speed of type `seeder 2' was 1604 KiB/s
44 * Download speed of type `leach` was 1384 KiB/s
47 #include "fs_test_lib.h"
48 #include "gnunet_testing_lib.h"
50 #define VERBOSE GNUNET_NO
53 * File-size we use for testing.
55 #define FILESIZE (1024 * 1024 * 10)
58 * How long until we give up on transmitting the message?
60 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 30)
63 * Number of daemons in clique, must be at least 3 (!).
68 * Seed for first file on offer.
73 * Seed for second file on offer.
77 static struct GNUNET_FS_TestDaemon *daemons[NUM_DAEMONS];
81 static struct GNUNET_TIME_Absolute start_time;
83 static const char *progname;
85 static struct GNUNET_FS_Uri *uri1;
87 static struct GNUNET_FS_Uri *uri2;
90 do_stop (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
92 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS, daemons);
97 * Master context for 'stat_run'.
101 struct GNUNET_STATISTICS_Handle *stat;
108 const char *subsystem;
113 * Statistics we print out.
115 static struct StatValues stats[] = {
116 {"fs", "# artificial delays introduced (ms)"},
117 {"fs", "# queries forwarded"},
118 {"fs", "# replies received and matched"},
119 {"fs", "# results found locally"},
120 {"fs", "# requests forwarded due to high load"},
121 {"fs", "# requests done for free (low load)"},
122 {"fs", "# requests dropped, priority insufficient"},
123 {"fs", "# requests done for a price (normal load)"},
124 {"fs", "# requests dropped by datastore (queue length limit)"},
125 {"fs", "# P2P searches received"},
126 {"fs", "# P2P searches discarded (queue length bound)"},
127 {"fs", "# replies received for local clients"},
128 {"fs", "# queries retransmitted to same target"},
129 {"core", "# bytes decrypted"},
130 {"core", "# bytes encrypted"},
131 {"core", "# discarded CORE_SEND requests"},
132 {"core", "# discarded lower priority CORE_SEND requests"},
133 {"transport", "# bytes received via TCP"},
134 {"transport", "# bytes transmitted via TCP"},
135 {"datacache", "# bytes stored"},
141 * Callback function to process statistic values.
144 * @param subsystem name of subsystem that created the statistic
145 * @param name the name of the datum
146 * @param value the current value
147 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
148 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
151 print_stat (void *cls,
152 const char *subsystem,
153 const char *name, uint64_t value, int is_persistent)
155 struct StatMaster *sm = cls;
158 "Peer %2u: %12s/%50s = %12llu\n",
159 sm->daemon, subsystem, name, (unsigned long long) value);
165 * Function that gathers stats from all daemons.
167 static void stat_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
171 * Function called when GET operation on stats is done.
174 get_done (void *cls, int success)
176 struct StatMaster *sm = cls;
178 GNUNET_break (GNUNET_OK == success);
180 GNUNET_SCHEDULER_add_now (&stat_run, sm);
185 * Function that gathers stats from all daemons.
188 stat_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
190 struct StatMaster *sm = cls;
192 if (stats[sm->value].name != NULL)
194 GNUNET_STATISTICS_get (sm->stat,
198 stats[sm->value].subsystem, stats[sm->value].name,
200 GNUNET_TIME_UNIT_FOREVER_REL,
201 &get_done, &print_stat, sm);
204 GNUNET_STATISTICS_destroy (sm->stat, GNUNET_NO);
207 if (sm->daemon == NUM_DAEMONS)
210 GNUNET_SCHEDULER_add_now (&do_stop, NULL);
213 sm->stat = GNUNET_STATISTICS_create ("<driver>",
214 GNUNET_FS_TEST_get_configuration
215 (daemons, sm->daemon));
216 GNUNET_SCHEDULER_add_now (&stat_run, sm);
221 do_report (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
223 static int download_counter;
224 const char *type = cls;
225 struct GNUNET_TIME_Relative del;
227 struct StatMaster *sm;
229 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE))
231 del = GNUNET_TIME_absolute_get_duration (start_time);
232 if (del.rel_value == 0)
235 GNUNET_STRINGS_byte_size_fancy (((unsigned long long) FILESIZE) *
236 1000LL / del.rel_value);
237 fprintf (stderr, "Download speed of type `%s' was %s/s\n", type, fancy);
239 if (NUM_DAEMONS != ++download_counter)
240 return; /* more downloads to come */
241 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
242 "Finished all downloads, shutting down\n",
243 (unsigned long long) FILESIZE);
244 sm = GNUNET_malloc (sizeof (struct StatMaster));
245 sm->stat = GNUNET_STATISTICS_create ("<driver>",
246 GNUNET_FS_TEST_get_configuration
247 (daemons, sm->daemon));
248 GNUNET_SCHEDULER_add_now (&stat_run, sm);
252 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
253 "Timeout during download for type `%s', shutting down with error\n",
256 GNUNET_SCHEDULER_add_now (&do_stop, NULL);
262 do_downloads (void *cls, const struct GNUNET_FS_Uri *u2)
269 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS, daemons);
270 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
271 "Timeout during upload attempt, shutting down with error\n");
275 uri2 = GNUNET_FS_uri_dup (u2);
276 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
277 "Downloading %llu bytes\n", (unsigned long long) FILESIZE);
278 start_time = GNUNET_TIME_absolute_get ();
279 if (NULL != strstr (progname, "dht"))
283 /* (semi) leach-download(s); not true leaches since
284 * these peers do participate in sharing, they just
285 * don't have to offer anything *initially*. */
286 for (i = 0; i < NUM_DAEMONS - 2; i++)
287 GNUNET_FS_TEST_download (daemons[i],
290 0 == (i % 2) ? SEED1 : SEED2,
291 0 == (i % 2) ? uri1 : uri2,
292 VERBOSE, &do_report, "leach");
293 /* mutual downloads of (primary) sharing peers */
294 GNUNET_FS_TEST_download (daemons[NUM_DAEMONS - 2],
296 anonymity, SEED1, uri1,
297 VERBOSE, &do_report, "seeder 2");
298 GNUNET_FS_TEST_download (daemons[NUM_DAEMONS - 1],
300 anonymity, SEED2, uri2,
301 VERBOSE, &do_report, "seeder 1");
306 do_publish2 (void *cls, const struct GNUNET_FS_Uri *u1)
313 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS, daemons);
314 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
315 "Timeout during upload attempt, shutting down with error\n");
319 uri1 = GNUNET_FS_uri_dup (u1);
320 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
321 "Publishing %llu bytes\n", (unsigned long long) FILESIZE);
322 if (NULL != strstr (progname, "index"))
323 do_index = GNUNET_YES;
325 do_index = GNUNET_NO;
326 if (NULL != strstr (progname, "dht"))
331 GNUNET_FS_TEST_publish (daemons[NUM_DAEMONS - 2],
334 do_index, FILESIZE, SEED2,
335 VERBOSE, &do_downloads, NULL);
339 do_publish1 (void *cls, const char *emsg)
346 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS, daemons);
347 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error trying to connect: %s\n", emsg);
351 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
352 "Publishing %llu bytes\n", (unsigned long long) FILESIZE);
353 if (NULL != strstr (progname, "index"))
354 do_index = GNUNET_YES;
356 do_index = GNUNET_NO;
357 if (NULL != strstr (progname, "dht"))
362 GNUNET_FS_TEST_publish (daemons[NUM_DAEMONS - 1],
365 do_index, FILESIZE, SEED1,
366 VERBOSE, &do_publish2, NULL);
371 do_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
373 struct GNUNET_TESTING_PeerGroup *pg;
375 GNUNET_assert (0 != (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE));
376 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
377 "Daemons started, will now try to connect them\n");
378 pg = GNUNET_FS_TEST_get_group (daemons);
379 GNUNET_TESTING_create_topology (pg,
380 GNUNET_TESTING_TOPOLOGY_CLIQUE,
381 GNUNET_TESTING_TOPOLOGY_NONE, NULL);
382 GNUNET_TESTING_connect_topology (pg,
383 GNUNET_TESTING_TOPOLOGY_CLIQUE,
384 GNUNET_TESTING_TOPOLOGY_OPTION_NONE,
386 TIMEOUT, NUM_DAEMONS, &do_publish1, NULL);
393 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
395 GNUNET_FS_TEST_daemons_start ("fs_test_lib_data.conf",
397 NUM_DAEMONS, daemons, &do_connect, NULL);
402 main (int argc, char *argv[])
404 char *const argvx[] = {
405 "perf-gnunet-service-fs-p2p",
407 "fs_test_lib_data.conf",
413 struct GNUNET_GETOPT_CommandLineOption options[] = {
414 GNUNET_GETOPT_OPTION_END
417 GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-lib/");
418 GNUNET_log_setup ("perf_gnunet_service_fs_p2p_trust",
425 GNUNET_PROGRAM_run ((sizeof (argvx) / sizeof (char *)) - 1,
426 argvx, "perf-gnunet-service-fs-p2p-trust",
427 "nohelp", options, &run, NULL);
428 GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-lib/");
432 /* end of perf_gnunet_service_fs_p2p_trust.c */