2 This file is part of GNUnet.
3 (C) 2004, 2005, 2006, 2007, 2009, 2011 Christian Grothoff (and other contributing authors)
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6 it under the terms of the GNU General Public License as published
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13 General Public License for more details.
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21 * @file datastore/perf_datastore_api.c
22 * @brief performance measurement for the datastore implementation
23 * @author Christian Grothoff
25 * This testcase inserts a bunch of (variable size) data and then
26 * deletes data until the (reported) database size drops below a given
27 * threshold. This is iterated 10 times, with the actual size of the
28 * content stored and the number of operations performed being printed
29 * for each iteration. The code also prints a "I" for every 40 blocks
30 * inserted and a "D" for every 40 blocks deleted. The deletion
31 * strategy uses the "random" iterator. Priorities and expiration
32 * dates are set using a pseudo-random value within a realistic range.
36 #include "gnunet_util_lib.h"
37 #include "gnunet_protocols.h"
38 #include "gnunet_datastore_service.h"
39 #include "gnunet_testing_lib.h"
43 * How long until we give up on transmitting the message?
45 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
48 * Target datastore size (in bytes).
50 #define MAX_SIZE 1024LL * 1024 * 4
53 * Report progress outside of major reports? Should probably be GNUNET_YES if
56 #define REPORT_ID GNUNET_YES
59 * Number of put operations equivalent to 1/3rd of MAX_SIZE
61 #define PUT_10 MAX_SIZE / 32 / 1024 / 3
64 * Total number of iterations (each iteration doing
65 * PUT_10 put operations); we report full status every
66 * 10 iterations. Abort with CTRL-C.
71 static unsigned long long stored_bytes;
73 static unsigned long long stored_entries;
75 static unsigned long long stored_ops;
77 static struct GNUNET_TIME_Absolute start_time;
79 static const char *plugin_name;
81 static struct GNUNET_DATASTORE_Handle *datastore;
98 const struct GNUNET_CONFIGURATION_Handle *cfg;
101 unsigned long long size;
107 run_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
111 check_success (void *cls, int success, struct GNUNET_TIME_Absolute min_expiration, const char *msg)
113 struct CpsRunContext *crc = cls;
115 if (GNUNET_OK != success)
117 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Check success failed: `%s'\n", msg);
118 crc->phase = RP_ERROR;
119 GNUNET_SCHEDULER_add_now (&run_continuation, crc);
123 FPRINTF (stderr, "%s", "I");
125 stored_bytes += crc->size;
129 if (crc->j >= PUT_10)
133 if (crc->i == ITERATIONS)
134 crc->phase = RP_DONE;
138 GNUNET_SCHEDULER_add_continuation (&run_continuation, crc,
139 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
144 * Continuation called to notify client about result of the
148 * @param success GNUNET_SYSERR on failure
149 * @param min_expiration minimum expiration time required for content to be stored
150 * by the datacache at this time, zero for unknown
151 * @param msg NULL on success, otherwise an error message
154 remove_next (void *cls, int success, struct GNUNET_TIME_Absolute min_expiration, const char *msg)
156 struct CpsRunContext *crc = cls;
158 if (GNUNET_OK != success)
160 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "remove_next failed: `%s'\n", msg);
161 crc->phase = RP_ERROR;
162 GNUNET_SCHEDULER_add_now (&run_continuation, crc);
166 FPRINTF (stderr, "%s", "D");
168 GNUNET_assert (GNUNET_OK == success);
169 GNUNET_SCHEDULER_add_now (&run_continuation, crc);
174 delete_value (void *cls, const struct GNUNET_HashCode * key, size_t size,
175 const void *data, enum GNUNET_BLOCK_Type type, uint32_t priority,
176 uint32_t anonymity, struct GNUNET_TIME_Absolute expiration,
179 struct CpsRunContext *crc = cls;
181 GNUNET_assert (NULL != key);
183 stored_bytes -= size;
186 if (stored_bytes < MAX_SIZE)
188 GNUNET_assert (NULL !=
189 GNUNET_DATASTORE_remove (datastore, key, size, data, 1, 1,
190 TIMEOUT, &remove_next, crc));
195 run_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
197 struct CpsRunContext *crc = cls;
199 static struct GNUNET_HashCode key;
200 static char data[65536];
205 ok = (int) crc->phase;
209 memset (&key, 256 - crc->i, sizeof (struct GNUNET_HashCode));
212 /* most content is 32k */
214 if (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16) == 0) /* but some of it is less! */
215 size = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 32 * 1024);
216 crc->size = size = size - (size & 7); /* always multiple of 8 */
217 GNUNET_CRYPTO_hash (&key, sizeof (struct GNUNET_HashCode), &key);
218 memset (data, i, size);
220 memset (data, i - 255, size / 2);
222 GNUNET_assert (NULL !=
223 GNUNET_DATASTORE_put (datastore, 0, &key, size, data, i + 1,
224 GNUNET_CRYPTO_random_u32
225 (GNUNET_CRYPTO_QUALITY_WEAK, 100), i,
227 GNUNET_TIME_relative_to_absolute
228 (GNUNET_TIME_relative_multiply
229 (GNUNET_TIME_UNIT_SECONDS,
230 GNUNET_CRYPTO_random_u32
231 (GNUNET_CRYPTO_QUALITY_WEAK, 1000))),
232 1, 1, TIMEOUT, &check_success, crc));
235 /* trim down below MAX_SIZE again */
236 GNUNET_assert (NULL !=
237 GNUNET_DATASTORE_get_for_replication (datastore, 1, 1,
238 TIMEOUT, &delete_value,
246 "Stored %llu kB / %lluk ops / %llu ops/s\n", stored_bytes / 1024, /* used size in k */
247 stored_ops / 1024, /* total operations (in k) */
248 1000LL * 1000LL * stored_ops / (1 +
249 GNUNET_TIME_absolute_get_duration
250 (start_time).rel_value_us));
253 GNUNET_SCHEDULER_add_continuation (&run_continuation, crc,
254 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
257 GNUNET_snprintf (gstr, sizeof (gstr), "DATASTORE-%s", plugin_name);
258 if ((crc->i == ITERATIONS) && (stored_ops > 0))
259 GAUGER (gstr, "PUT operation duration",
260 GNUNET_TIME_absolute_get_duration (start_time).rel_value_us / 1000LL /
261 stored_ops, "ms/operation");
262 GNUNET_DATASTORE_disconnect (datastore, GNUNET_YES);
267 GNUNET_DATASTORE_disconnect (datastore, GNUNET_YES);
278 run_tests (void *cls, int success, struct GNUNET_TIME_Absolute min_expiration, const char *msg)
280 struct CpsRunContext *crc = cls;
282 if (success != GNUNET_YES)
285 "Test 'put' operation failed with error `%s' database likely not setup, skipping test.\n",
287 GNUNET_DATASTORE_disconnect (datastore, GNUNET_YES);
291 GNUNET_SCHEDULER_add_continuation (&run_continuation, crc,
292 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
298 const struct GNUNET_CONFIGURATION_Handle *cfg,
299 struct GNUNET_TESTING_Peer *peer)
301 struct CpsRunContext *crc;
302 static struct GNUNET_HashCode zkey;
304 datastore = GNUNET_DATASTORE_connect (cfg);
305 start_time = GNUNET_TIME_absolute_get ();
306 crc = GNUNET_new (struct CpsRunContext);
310 GNUNET_DATASTORE_put (datastore, 0, &zkey, 4, "TEST",
311 GNUNET_BLOCK_TYPE_TEST, 0, 0, 0,
312 GNUNET_TIME_relative_to_absolute
313 (GNUNET_TIME_UNIT_SECONDS), 0, 1,
314 GNUNET_TIME_UNIT_MINUTES, &run_tests, crc))
316 FPRINTF (stderr, "%s", "Test 'put' operation failed.\n");
324 main (int argc, char *argv[])
328 plugin_name = GNUNET_TESTING_get_testname_from_underscore (argv[0]);
329 GNUNET_snprintf (cfg_name, sizeof (cfg_name),
330 "test_datastore_api_data_%s.conf", plugin_name);
332 GNUNET_TESTING_peer_run ("perf-gnunet-datastore",
337 FPRINTF (stderr, "%s", "\n");
341 /* end of perf_datastore_api.c */