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;
91 const struct GNUNET_SCHEDULER_TaskContext *tc)
93 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS,
99 * Master context for 'stat_run'.
103 struct GNUNET_STATISTICS_Handle *stat;
110 const char *subsystem;
115 * Statistics we print out.
117 static struct StatValues stats[] =
119 { "fs", "# artificial delays introduced (ms)"},
120 { "fs", "# queries forwarded"},
121 { "fs", "# replies received and matched"},
122 { "fs", "# results found locally"},
123 { "fs", "# requests forwarded due to high load"},
124 { "fs", "# requests done for free (low load)"},
125 { "fs", "# requests dropped, priority insufficient"},
126 { "fs", "# requests done for a price (normal load)"},
127 { "fs", "# requests dropped by datastore (queue length limit)"},
128 { "fs", "# P2P searches received"},
129 { "fs", "# P2P searches discarded (queue length bound)"},
130 { "fs", "# replies received for local clients"},
131 { "fs", "# queries retransmitted to same target"},
132 { "core", "# bytes decrypted"},
133 { "core", "# bytes encrypted"},
134 { "core", "# discarded CORE_SEND requests"},
135 { "core", "# discarded lower priority CORE_SEND requests"},
136 { "transport", "# bytes received via TCP"},
137 { "transport", "# bytes transmitted via TCP"},
138 { "datacache", "# bytes stored"},
144 * Callback function to process statistic values.
147 * @param subsystem name of subsystem that created the statistic
148 * @param name the name of the datum
149 * @param value the current value
150 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
151 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
154 print_stat (void *cls,
155 const char *subsystem,
160 struct StatMaster *sm = cls;
162 "Peer %2u: %12s/%50s = %12llu\n",
166 (unsigned long long) value);
172 * Function that gathers stats from all daemons.
176 const struct GNUNET_SCHEDULER_TaskContext *tc);
180 * Function called when GET operation on stats is done.
186 struct StatMaster *sm = cls;
187 GNUNET_break (GNUNET_OK == success);
189 GNUNET_SCHEDULER_add_now (&stat_run, sm);
194 * Function that gathers stats from all daemons.
198 const struct GNUNET_SCHEDULER_TaskContext *tc)
200 struct StatMaster *sm = cls;
202 if (stats[sm->value].name != NULL)
204 GNUNET_STATISTICS_get (sm->stat,
208 stats[sm->value].subsystem,
209 stats[sm->value].name,
211 GNUNET_TIME_UNIT_FOREVER_REL,
216 GNUNET_STATISTICS_destroy (sm->stat, GNUNET_NO);
219 if (sm->daemon == NUM_DAEMONS)
222 GNUNET_SCHEDULER_add_now (&do_stop, NULL);
225 sm->stat = GNUNET_STATISTICS_create ("<driver>",
226 GNUNET_FS_TEST_get_configuration (daemons,
228 GNUNET_SCHEDULER_add_now (&stat_run, sm);
233 do_report (void *cls,
234 const struct GNUNET_SCHEDULER_TaskContext *tc)
236 static int download_counter;
237 const char *type = cls;
238 struct GNUNET_TIME_Relative del;
240 struct StatMaster *sm;
242 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE))
244 del = GNUNET_TIME_absolute_get_duration (start_time);
245 if (del.rel_value == 0)
247 fancy = GNUNET_STRINGS_byte_size_fancy (((unsigned long long)FILESIZE) * 1000LL / del.rel_value);
249 "Download speed of type `%s' was %s/s\n",
253 if (NUM_DAEMONS != ++download_counter)
254 return; /* more downloads to come */
255 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
256 "Finished all downloads, shutting down\n",
257 (unsigned long long) FILESIZE);
258 sm = GNUNET_malloc (sizeof (struct StatMaster));
259 sm->stat = GNUNET_STATISTICS_create ("<driver>",
260 GNUNET_FS_TEST_get_configuration (daemons,
262 GNUNET_SCHEDULER_add_now (&stat_run, sm);
266 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
267 "Timeout during download for type `%s', shutting down with error\n",
270 GNUNET_SCHEDULER_add_now (&do_stop, NULL);
276 do_downloads (void *cls,
277 const struct GNUNET_FS_Uri *u2)
284 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS,
286 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
287 "Timeout during upload attempt, shutting down with error\n");
291 uri2 = GNUNET_FS_uri_dup (u2);
292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
293 "Downloading %llu bytes\n",
294 (unsigned long long) FILESIZE);
295 start_time = GNUNET_TIME_absolute_get ();
296 if (NULL != strstr (progname, "dht"))
300 /* (semi) leach-download(s); not true leaches since
301 these peers do participate in sharing, they just
302 don't have to offer anything *initially*. */
303 for (i=0;i<NUM_DAEMONS-2;i++)
304 GNUNET_FS_TEST_download (daemons[i],
307 0 == (i%2) ? SEED1 : SEED2,
308 0 == (i%2) ? uri1 : uri2,
310 &do_report, "leach");
311 /* mutual downloads of (primary) sharing peers */
312 GNUNET_FS_TEST_download (daemons[NUM_DAEMONS-2],
314 anonymity, SEED1, uri1,
316 &do_report, "seeder 2");
317 GNUNET_FS_TEST_download (daemons[NUM_DAEMONS-1],
319 anonymity, SEED2, uri2,
321 &do_report, "seeder 1");
326 do_publish2 (void *cls,
327 const struct GNUNET_FS_Uri *u1)
334 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS,
336 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
337 "Timeout during upload attempt, shutting down with error\n");
341 uri1 = GNUNET_FS_uri_dup (u1);
342 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
343 "Publishing %llu bytes\n",
344 (unsigned long long) FILESIZE);
345 if (NULL != strstr (progname, "index"))
346 do_index = GNUNET_YES;
348 do_index = GNUNET_NO;
349 if (NULL != strstr (progname, "dht"))
354 GNUNET_FS_TEST_publish (daemons[NUM_DAEMONS-2],
357 do_index, FILESIZE, SEED2,
359 &do_downloads, NULL);
363 do_publish1 (void *cls,
371 GNUNET_FS_TEST_daemons_stop (NUM_DAEMONS,
373 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
374 "Error trying to connect: %s\n",
379 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
380 "Publishing %llu bytes\n",
381 (unsigned long long) FILESIZE);
382 if (NULL != strstr (progname, "index"))
383 do_index = GNUNET_YES;
385 do_index = GNUNET_NO;
386 if (NULL != strstr (progname, "dht"))
391 GNUNET_FS_TEST_publish (daemons[NUM_DAEMONS-1],
394 do_index, FILESIZE, SEED1,
401 do_connect (void *cls,
402 const struct GNUNET_SCHEDULER_TaskContext *tc)
404 struct GNUNET_TESTING_PeerGroup *pg;
406 GNUNET_assert (0 != (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE));
407 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
408 "Daemons started, will now try to connect them\n");
409 pg = GNUNET_FS_TEST_get_group (daemons);
410 GNUNET_TESTING_create_topology (pg,
411 GNUNET_TESTING_TOPOLOGY_CLIQUE,
412 GNUNET_TESTING_TOPOLOGY_NONE,
414 GNUNET_TESTING_connect_topology (pg,
415 GNUNET_TESTING_TOPOLOGY_CLIQUE,
416 GNUNET_TESTING_TOPOLOGY_OPTION_NONE,
429 const struct GNUNET_CONFIGURATION_Handle *cfg)
431 GNUNET_FS_TEST_daemons_start ("fs_test_lib_data.conf",
441 main (int argc, char *argv[])
443 char *const argvx[] = {
444 "perf-gnunet-service-fs-p2p",
446 "fs_test_lib_data.conf",
452 struct GNUNET_GETOPT_CommandLineOption options[] = {
453 GNUNET_GETOPT_OPTION_END
456 GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-lib/");
457 GNUNET_log_setup ("perf_gnunet_service_fs_p2p_trust",
464 GNUNET_PROGRAM_run ((sizeof (argvx) / sizeof (char *)) - 1,
465 argvx, "perf-gnunet-service-fs-p2p-trust",
466 "nohelp", options, &run, NULL);
467 GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-lib/");
471 /* end of perf_gnunet_service_fs_p2p_trust.c */