summaryrefslogtreecommitdiff
path: root/src/fs/perf_gnunet_service_fs_p2p_respect.c
blob: b2471a8b4eb6d83f4f5fff674d3006830ac6575c (plain)
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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
/*
     This file is part of GNUnet.
     (C) 2010, 2011, 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/perf_gnunet_service_fs_p2p_respect.c
 * @brief profile P2P routing respect mechanism. Creates
 *        a clique of NUM_DAEMONS (i.e. 3) where two
 *        peers share (seed) different files and download
 *        them from each other while all the other peers
 *        just "leach" those files.  Ideally, the seeders
 *        "learn" that they contribute (to each other),
 *        and give the other seeder higher priority;
 *        naturally, this only happens nicely for larger
 *        files; finally, once the seeders are done, the
 *        leachers should see fast download rates as well.
 * @author Christian Grothoff
 *
 * Sample output:
 * - 10 MB, 3 peers, with delays:
 * Download speed of type `seeder 1' was 757 KiB/s
 * Download speed of type `seeder 2' was 613 KiB/s
 * Download speed of type `leach` was 539 KiB/s
 *
 * - 10 MB, 3 peers, without delays:
 * Download speed of type `seeder 1' was 1784 KiB/s
 * Download speed of type `seeder 2' was 1604 KiB/s
 * Download speed of type `leach` was 1384 KiB/s
 */
#include "platform.h"
#include "fs_test_lib.h"
#include "gnunet_testbed_service.h"

#define VERBOSE GNUNET_NO

/**
 * File-size we use for testing.
 */
#define FILESIZE (1024 * 1024 * 1)

/**
 * How long until we give up on transmitting the message?
 */
#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 30)

/**
 * Number of daemons in clique, must be at least 3 (!).
 */
#define NUM_DAEMONS 3

/**
 * Seed for first file on offer.
 */
#define SEED1 42

/**
 * Seed for second file on offer.
 */
#define SEED2 43

static struct GNUNET_TESTBED_Peer *daemons[NUM_DAEMONS];

static int ok;

static struct GNUNET_TIME_Absolute start_time;

static const char *progname;

static struct GNUNET_FS_Uri *uri1;

static struct GNUNET_FS_Uri *uri2;

static char *fn1;

static char *fn2;

/**
 * Master context for 'stat_run'.
 */
struct StatMaster
{
  struct GNUNET_STATISTICS_Handle *stat;
  struct GNUNET_TESTBED_Operation *op;
  unsigned int daemon;
  unsigned int value;
};

struct StatValues
{
  const char *subsystem;
  const char *name;
};

/**
 * Statistics we print out.
 */
static struct StatValues stats[] = {
  {"fs", "# artificial delays introduced (ms)"},
  {"fs", "# queries forwarded"},
  {"fs", "# replies received and matched"},
  {"fs", "# results found locally"},
  {"fs", "# requests forwarded due to high load"},
  {"fs", "# requests done for free (low load)"},
  {"fs", "# requests dropped, priority insufficient"},
  {"fs", "# requests done for a price (normal load)"},
  {"fs", "# requests dropped by datastore (queue length limit)"},
  {"fs", "# P2P searches received"},
  {"fs", "# P2P searches discarded (queue length bound)"},
  {"fs", "# replies received for local clients"},
  {"fs", "# queries retransmitted to same target"},
  {"core", "# bytes decrypted"},
  {"core", "# bytes encrypted"},
  {"core", "# discarded CORE_SEND requests"},
  {"core", "# discarded lower priority CORE_SEND requests"},
  {"transport", "# bytes received via TCP"},
  {"transport", "# bytes transmitted via TCP"},
  {"datacache", "# bytes stored"},
  {NULL, NULL}
};


static void
cleanup ()
{
  GNUNET_SCHEDULER_shutdown ();
  if (NULL != fn1)
  {
    GNUNET_DISK_directory_remove (fn1);
    GNUNET_free (fn1);
  }
  if (NULL != fn2)
  {
    GNUNET_DISK_directory_remove (fn2);
    GNUNET_free (fn2);
  }
}


/**
 * Callback function to process statistic values.
 *
 * @param cls closure
 * @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
print_stat (void *cls, const char *subsystem, const char *name, uint64_t value,
            int is_persistent)
{
  struct StatMaster *sm = cls;

  FPRINTF (stderr, "Peer %2u: %12s/%50s = %12llu\n", sm->daemon, subsystem,
           name, (unsigned long long) value);
  return GNUNET_OK;
}


/**
 * Function that gathers stats from all daemons.
 */
static void
stat_run (void *cls,
	  struct GNUNET_TESTBED_Operation *op,
	  void *ca_result,
	  const char *emsg);


/**
 * Function called when GET operation on stats is done.
 */
static void
get_done (void *cls, int success)
{
  struct StatMaster *sm = cls;

  GNUNET_break (GNUNET_OK == success);
  sm->value++;
  stat_run (sm, sm->op, sm->stat, NULL);
}



/**
 * Adapter function called to establish a connection to
 * statistics service.
 *
 * @param cls closure
 * @param cfg configuration of the peer to connect to; will be available until
 *          GNUNET_TESTBED_operation_done() is called on the operation returned
 *          from GNUNET_TESTBED_service_connect()
 * @return service handle to return in 'op_result', NULL on error
 */
static void *
statistics_connect_adapter (void *cls,
			    const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  return GNUNET_STATISTICS_create ("<driver>",
				   cfg);
}


/**
 * Adapter function called to destroy a connection to
 * statistics service.
 *
 * @param cls closure
 * @param op_result service handle returned from the connect adapter
 */
static void
statistics_disconnect_adapter (void *cls,
			       void *op_result)
{
  GNUNET_STATISTICS_destroy (op_result, GNUNET_NO);
}


/**
 * Function that gathers stats from all daemons.
 */
static void
stat_run (void *cls,
	  struct GNUNET_TESTBED_Operation *op,
	  void *ca_result,
	  const char *emsg)
{
  struct StatMaster *sm = cls;

  sm->stat = ca_result;
  GNUNET_assert (NULL != sm->stat);
  if (NULL != stats[sm->value].name)
  {
    GNUNET_STATISTICS_get (sm->stat,
#if 0
                           NULL, NULL,
#else
                           stats[sm->value].subsystem, stats[sm->value].name,
#endif
                           GNUNET_TIME_UNIT_FOREVER_REL, &get_done, &print_stat,
                           sm);
    return;
  }
  GNUNET_TESTBED_operation_done (sm->op);
  sm->value = 0;
  sm->daemon++;
  if (NUM_DAEMONS == sm->daemon)
  {
    GNUNET_free (sm);
    cleanup ();
    return;
  }
  sm->op =
    GNUNET_TESTBED_service_connect (NULL,
				    daemons[sm->daemon],
				    "statistics",
				    &stat_run, sm,
				    &statistics_connect_adapter,
				    &statistics_disconnect_adapter,
				    NULL);
}


static void
do_report (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  static int download_counter;
  const char *type = cls;
  struct GNUNET_TIME_Relative del;
  char *fancy;
  struct StatMaster *sm;

  if (0 == (tc->reason & GNUNET_SCHEDULER_REASON_PREREQ_DONE))
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Timeout during download for type `%s', shutting down with error\n",
                type);
    ok = 1;
    cleanup ();
    return;
  }
  del = GNUNET_TIME_absolute_get_duration (start_time);
  if (del.rel_value_us == 0)
    del.rel_value_us = 1;
  fancy =
    GNUNET_STRINGS_byte_size_fancy (((unsigned long long) FILESIZE) *
				    1000000LL / del.rel_value_us);
  FPRINTF (stderr, "Download speed of type `%s' was %s/s\n", type, fancy);
  GNUNET_free (fancy);
  if (NUM_DAEMONS != ++download_counter)
    return;                   /* more downloads to come */
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
	      "Finished all downloads, getting statistics\n");
  sm = GNUNET_malloc (sizeof (struct StatMaster));
  sm->op =
    GNUNET_TESTBED_service_connect (NULL,
				    daemons[sm->daemon],
				    "statistics",
				    &stat_run, sm,
				    &statistics_connect_adapter,
				    &statistics_disconnect_adapter,
				    NULL);
}


static void
do_downloads (void *cls, const struct GNUNET_FS_Uri *u2,
	      const char *fn)
{
  int anonymity;
  unsigned int i;

  if (NULL == u2)
  {
    cleanup ();
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Timeout during upload attempt, shutting down with error\n");
    ok = 1;
    return;
  }
  if (NULL != fn)
    fn2 = GNUNET_strdup (fn);
  uri2 = GNUNET_FS_uri_dup (u2);
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Downloading %llu bytes\n",
              (unsigned long long) FILESIZE);
  start_time = GNUNET_TIME_absolute_get ();
  if (NULL != strstr (progname, "dht"))
    anonymity = 0;
  else
    anonymity = 1;
  /* (semi) leach-download(s); not true leaches since
   * these peers do participate in sharing, they just
   * don't have to offer anything *initially*.  */
  for (i = 0; i < NUM_DAEMONS - 2; i++)
    GNUNET_FS_TEST_download (daemons[i], TIMEOUT, anonymity,
                             0 == (i % 2) ? SEED1 : SEED2,
                             0 == (i % 2) ? uri1 : uri2, VERBOSE, &do_report,
                             "leach");
  /* mutual downloads of (primary) sharing peers */
  GNUNET_FS_TEST_download (daemons[NUM_DAEMONS - 2], TIMEOUT, anonymity, SEED1,
                           uri1, VERBOSE, &do_report, "seeder 2");
  GNUNET_FS_TEST_download (daemons[NUM_DAEMONS - 1], TIMEOUT, anonymity, SEED2,
                           uri2, VERBOSE, &do_report, "seeder 1");
}


static void
do_publish2 (void *cls,	
	     const struct GNUNET_FS_Uri *u1,
	     const char *fn)
{
  int do_index;
  int anonymity;

  if (NULL == u1)
  {
    cleanup ();
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Timeout during upload attempt, shutting down with error\n");
    ok = 1;
    return;
  }
  if (NULL != fn)
    fn1 = GNUNET_strdup (fn);
  uri1 = GNUNET_FS_uri_dup (u1);
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Publishing %llu bytes\n",
              (unsigned long long) FILESIZE);
  if (NULL != strstr (progname, "index"))
    do_index = GNUNET_YES;
  else
    do_index = GNUNET_NO;
  if (NULL != strstr (progname, "dht"))
    anonymity = 0;
  else
    anonymity = 1;

  GNUNET_FS_TEST_publish (daemons[NUM_DAEMONS - 2], TIMEOUT, anonymity,
                          do_index, FILESIZE, SEED2, VERBOSE, &do_downloads,
                          NULL);
}


static void
do_publish1 (void *cls,
	     struct GNUNET_TESTBED_Operation *op,
	     const char *emsg)
{
  unsigned int *coco = cls;
  int do_index;
  int anonymity;

  GNUNET_TESTBED_operation_done (op);
  if (NULL != emsg)
  {
    cleanup ();
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error trying to connect: %s\n", emsg);
    ok = 1;
    return;
  }
  if (0 != (--(*coco)))
    return; /* more connections to be created */
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Publishing %llu bytes\n",
              (unsigned long long) FILESIZE);
  if (NULL != strstr (progname, "index"))
    do_index = GNUNET_YES;
  else
    do_index = GNUNET_NO;
  if (NULL != strstr (progname, "dht"))
    anonymity = 0;
  else
    anonymity = 1;
  GNUNET_FS_TEST_publish (daemons[NUM_DAEMONS - 1], TIMEOUT, anonymity,
                          do_index, FILESIZE, SEED1, VERBOSE, &do_publish2,
                          NULL);
}


static void
do_connect (void *cls,
            struct GNUNET_TESTBED_RunHandle *h,
	    unsigned int num_peers,
	    struct GNUNET_TESTBED_Peer **peers,
            unsigned int links_succeeded,
            unsigned int links_failed)
{
  static unsigned int coco;
  unsigned int i;
  unsigned int j;

  GNUNET_assert (NUM_DAEMONS == num_peers);
  for (i=0;i<num_peers;i++)
    daemons[i] = peers[i];
  for (i=0;i<NUM_DAEMONS;i++)
    for (j=i+1;j<NUM_DAEMONS;j++)
      {
	coco++;
	GNUNET_TESTBED_overlay_connect (NULL,
					&do_publish1,
					&coco,
					peers[i],
					peers[j]);
      }
}


int
main (int argc, char *argv[])
{
  progname = argv[0];
  (void) GNUNET_TESTBED_test_run ("perf-gnunet-service-fs-p2p-respect",
                                  "perf_gnunet_service_fs_p2p.conf",
                                  NUM_DAEMONS,
                                  0, NULL, NULL,
                                  &do_connect, NULL);
  GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-lib/");
  return ok;
}

/* end of perf_gnunet_service_fs_p2p_respect.c */