2 This file is part of GNUnet.
3 (C) 2004, 2005, 2006, 2007, 2009, 2011 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 perf_plugin_datastore.c
22 * @brief Profile database plugin directly, focusing on iterators.
23 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_protocols.h"
29 #include "gnunet_datastore_plugin.h"
32 #define VERBOSE GNUNET_NO
35 * Target datastore size (in bytes). Realistic sizes are
36 * more like 16 GB (not the default of 16 MB); however,
37 * those take too long to run them in the usual "make check"
38 * sequence. Hence the value used for shipping is tiny.
40 #define MAX_SIZE 1024LL * 1024 * 16 * 1
45 * Number of put operations equivalent to 1/10th of MAX_SIZE
47 #define PUT_10 (MAX_SIZE / 32 / 1024 / ITERATIONS)
49 static char category[256];
51 static unsigned int hits[PUT_10 / 8 + 1];
53 static unsigned long long stored_bytes;
55 static unsigned long long stored_entries;
57 static unsigned long long stored_ops;
59 static const char *plugin_name;
77 struct GNUNET_TIME_Absolute start;
78 struct GNUNET_TIME_Absolute end;
79 const struct GNUNET_CONFIGURATION_Handle *cfg;
80 struct GNUNET_DATASTORE_PluginFunctions *api;
89 * Function called by plugins to notify us about a
90 * change in their disk utilization.
92 * @param cls closure (NULL)
93 * @param delta change in disk utilization,
94 * 0 for "reset to empty"
97 disk_utilization_change_cb (void *cls, int delta)
103 putValue (struct GNUNET_DATASTORE_PluginFunctions *api, int i, int k)
107 static GNUNET_HashCode key;
112 /* most content is 32k */
114 if (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16) == 0) /* but some of it is less! */
115 size = 8 + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 32 * 1024);
116 size = size - (size & 7); /* always multiple of 8 */
118 /* generate random key */
119 key.bits[0] = (unsigned int) GNUNET_TIME_absolute_get ().abs_value;
120 GNUNET_CRYPTO_hash (&key, sizeof (GNUNET_HashCode), &key);
121 memset (value, i, size);
123 memset (value, i - 255, size / 2);
125 memcpy (&value[4], &i, sizeof (i));
127 prio = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 100);
128 if (GNUNET_OK != api->put (api->cls, &key, size, value, 1 + i % 4 /* type */ ,
129 prio, i % 4 /* anonymity */ ,
130 0 /* replication */ ,
131 GNUNET_TIME_relative_to_absolute
132 (GNUNET_TIME_relative_multiply
133 (GNUNET_TIME_UNIT_MILLISECONDS,
134 60 * 60 * 60 * 1000 +
135 GNUNET_CRYPTO_random_u32
136 (GNUNET_CRYPTO_QUALITY_WEAK, 1000))), &msg))
138 fprintf (stderr, "ERROR: `%s'\n", msg);
139 GNUNET_free_non_null (msg);
143 stored_bytes += size;
148 static void test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
152 iterate_zeros (void *cls,
153 const GNUNET_HashCode * key,
156 enum GNUNET_BLOCK_Type type,
159 struct GNUNET_TIME_Absolute expiration, uint64_t uid)
161 struct CpsRunContext *crc = cls;
163 const char *cdata = data;
165 GNUNET_assert (key != NULL);
166 GNUNET_assert (size >= 8);
167 memcpy (&i, &cdata[4], sizeof (i));
168 hits[i / 8] |= (1 << (i % 8));
171 fprintf (stderr, "Found result type=%u, priority=%u, size=%u, expire=%llu\n",
172 type, priority, size, (unsigned long long) expiration.abs_value);
175 if (crc->cnt == PUT_10 / 4 - 1)
180 for (i = 0; i < PUT_10; i++)
181 if (0 != (hits[i / 8] & (1 << (i % 8))))
184 crc->end = GNUNET_TIME_absolute_get ();
185 printf ("%s took %llu ms yielding %u/%u items\n",
186 "Select random zero-anonymity item",
187 (unsigned long long) (crc->end.abs_value - crc->start.abs_value),
191 "Select random zero-anonymity item",
192 (crc->end.abs_value - crc->start.abs_value) / crc->cnt,
194 memset (hits, 0, sizeof (hits));
197 crc->start = GNUNET_TIME_absolute_get ();
199 GNUNET_SCHEDULER_add_now (&test, crc);
205 expiration_get (void *cls,
206 const GNUNET_HashCode * key,
209 enum GNUNET_BLOCK_Type type,
212 struct GNUNET_TIME_Absolute expiration, uint64_t uid)
214 struct CpsRunContext *crc = cls;
216 const char *cdata = data;
218 GNUNET_assert (size >= 8);
219 memcpy (&i, &cdata[4], sizeof (i));
220 hits[i / 8] |= (1 << (i % 8));
222 if (PUT_10 <= crc->cnt)
227 for (i = 0; i < PUT_10; i++)
228 if (0 != (hits[i / 8] & (1 << (i % 8))))
231 crc->end = GNUNET_TIME_absolute_get ();
232 printf ("%s took %llu ms yielding %u/%u items\n",
233 "Selecting and deleting by expiration",
234 (unsigned long long) (crc->end.abs_value - crc->start.abs_value),
235 bc, (unsigned int) PUT_10);
238 "Selecting and deleting by expiration",
239 (crc->end.abs_value - crc->start.abs_value) / crc->cnt,
241 memset (hits, 0, sizeof (hits));
242 if (++crc->iter == ITERATIONS)
247 crc->start = GNUNET_TIME_absolute_get ();
249 GNUNET_SCHEDULER_add_now (&test, crc);
255 replication_get (void *cls,
256 const GNUNET_HashCode * key,
259 enum GNUNET_BLOCK_Type type,
262 struct GNUNET_TIME_Absolute expiration, uint64_t uid)
264 struct CpsRunContext *crc = cls;
266 const char *cdata = data;
268 GNUNET_assert (NULL != key);
269 GNUNET_assert (size >= 8);
270 memcpy (&i, &cdata[4], sizeof (i));
271 hits[i / 8] |= (1 << (i % 8));
273 if (PUT_10 <= crc->cnt)
278 for (i = 0; i < PUT_10; i++)
279 if (0 != (hits[i / 8] & (1 << (i % 8))))
282 crc->end = GNUNET_TIME_absolute_get ();
283 printf ("%s took %llu ms yielding %u/%u items\n",
284 "Selecting random item for replication",
285 (unsigned long long) (crc->end.abs_value - crc->start.abs_value),
286 bc, (unsigned int) PUT_10);
289 "Selecting random item for replication",
290 (crc->end.abs_value - crc->start.abs_value) / crc->cnt,
292 memset (hits, 0, sizeof (hits));
296 crc->start = GNUNET_TIME_absolute_get ();
299 GNUNET_SCHEDULER_add_now (&test, crc);
305 * Function called when the service shuts
306 * down. Unloads our datastore plugin.
308 * @param api api to unload
309 * @param cfg configuration to use
312 unload_plugin (struct GNUNET_DATASTORE_PluginFunctions *api,
313 const struct GNUNET_CONFIGURATION_Handle *cfg)
319 GNUNET_CONFIGURATION_get_value_string (cfg,
320 "DATASTORE", "DATABASE", &name))
322 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
323 _("No `%s' specified for `%s' in configuration!\n"),
324 "DATABASE", "DATASTORE");
327 GNUNET_asprintf (&libname, "libgnunet_plugin_datastore_%s", name);
328 GNUNET_break (NULL == GNUNET_PLUGIN_unload (libname, api));
329 GNUNET_free (libname);
336 * Last task run during shutdown. Disconnects us from
337 * the transport and core.
340 cleaning_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
342 struct CpsRunContext *crc = cls;
344 unload_plugin (crc->api, crc->cfg);
350 test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
352 struct CpsRunContext *crc = cls;
355 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
358 crc->phase = RP_ERROR;
361 fprintf (stderr, "In phase %d, iteration %u\n", crc->phase, crc->cnt);
367 crc->api->drop (crc->api->cls);
369 GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_IDLE,
370 &cleaning_task, crc);
373 crc->start = GNUNET_TIME_absolute_get ();
374 for (j = 0; j < PUT_10; j++)
375 putValue (crc->api, j, crc->i);
376 crc->end = GNUNET_TIME_absolute_get ();
378 printf ("%s took %llu ms for %llu items\n",
380 (unsigned long long) (crc->end.abs_value - crc->start.abs_value),
385 (crc->end.abs_value - crc->start.abs_value) / PUT_10,
389 crc->start = GNUNET_TIME_absolute_get ();
391 GNUNET_SCHEDULER_add_now (&test, crc);
394 crc->api->get_replication (crc->api->cls, &replication_get, crc);
397 crc->api->get_zero_anonymity (crc->api->cls,
398 crc->offset++, 1, &iterate_zeros, crc);
401 crc->api->get_expiration (crc->api->cls, &expiration_get, crc);
404 crc->api->drop (crc->api->cls);
406 GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_IDLE,
407 &cleaning_task, crc);
414 * Load the datastore plugin.
416 static struct GNUNET_DATASTORE_PluginFunctions *
417 load_plugin (const struct GNUNET_CONFIGURATION_Handle *cfg)
419 static struct GNUNET_DATASTORE_PluginEnvironment env;
420 struct GNUNET_DATASTORE_PluginFunctions *ret;
425 GNUNET_CONFIGURATION_get_value_string (cfg,
426 "DATASTORE", "DATABASE", &name))
428 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
429 _("No `%s' specified for `%s' in configuration!\n"),
430 "DATABASE", "DATASTORE");
434 env.duc = &disk_utilization_change_cb;
436 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
437 _("Loading `%s' datastore plugin\n"), name);
438 GNUNET_asprintf (&libname, "libgnunet_plugin_datastore_%s", name);
439 if (NULL == (ret = GNUNET_PLUGIN_load (libname, &env)))
441 fprintf (stderr, "Failed to load plugin `%s'!\n", name);
444 GNUNET_free (libname);
453 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *c)
455 struct GNUNET_DATASTORE_PluginFunctions *api;
456 struct CpsRunContext *crc;
458 api = load_plugin (c);
462 "Could not initialize plugin, assuming database not configured. Test not run!\n");
465 crc = GNUNET_malloc (sizeof (struct CpsRunContext));
470 GNUNET_SCHEDULER_add_now (&test, crc);
479 char *const argv[] = {
480 "perf-plugin-datastore",
488 struct GNUNET_GETOPT_CommandLineOption options[] = {
489 GNUNET_GETOPT_OPTION_END
492 GNUNET_snprintf (category, sizeof (category), "DATASTORE-%s", plugin_name);
493 GNUNET_snprintf (cfg_name,
495 "perf_plugin_datastore_data_%s.conf", plugin_name);
496 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
497 argv, "perf-plugin-datastore", "nohelp",
498 options, &run, NULL);
500 fprintf (stderr, "Missed some testcases: %u\n", ok);
506 main (int argc, char *argv[])
513 /* determine name of plugin to use */
514 plugin_name = argv[0];
515 while (NULL != (pos = strstr (plugin_name, "_")))
516 plugin_name = pos + 1;
517 if (NULL != (pos = strstr (plugin_name, ".")))
520 pos = (char *) plugin_name;
522 GNUNET_snprintf (dir_name,
524 "/tmp/perf-gnunet-datastore-%s", plugin_name);
525 GNUNET_DISK_directory_remove (dir_name);
526 GNUNET_log_setup ("perf-plugin-datastore",
534 if (pos != plugin_name)
536 GNUNET_DISK_directory_remove (dir_name);
541 /* end of perf_plugin_datastore.c */