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"
41 #define VERBOSE GNUNET_NO
44 * How long until we give up on transmitting the message?
46 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
48 static const char *plugin_name;
50 static struct GNUNET_DATASTORE_Handle *datastore;
53 * Target datastore size (in bytes).
55 #define MAX_SIZE 1024LL * 1024 * 4
58 * Report progress outside of major reports? Should probably be GNUNET_YES if
61 #define REPORT_ID GNUNET_YES
64 * Number of put operations equivalent to 1/3rd of MAX_SIZE
66 #define PUT_10 MAX_SIZE / 32 / 1024 / 3
69 * Total number of iterations (each iteration doing
70 * PUT_10 put operations); we report full status every
71 * 10 iterations. Abort with CTRL-C.
76 static unsigned long long stored_bytes;
78 static unsigned long long stored_entries;
80 static unsigned long long stored_ops;
82 static struct GNUNET_TIME_Absolute start_time;
98 const struct GNUNET_CONFIGURATION_Handle *cfg;
101 unsigned long long size;
108 run_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
114 check_success (void *cls, int success, const char *msg)
116 struct CpsRunContext *crc = cls;
118 if (GNUNET_OK != success)
120 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Check success failed: `%s'\n", msg);
121 crc->phase = RP_ERROR;
122 GNUNET_SCHEDULER_add_now (&run_continuation, crc);
126 fprintf (stderr, "I");
128 stored_bytes += crc->size;
132 if (crc->j >= PUT_10)
136 if (crc->i == ITERATIONS)
137 crc->phase = RP_DONE;
141 GNUNET_SCHEDULER_add_continuation (&run_continuation,
142 crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
147 * Continuation called to notify client about result of the
151 * @param success GNUNET_SYSERR on failure
152 * @param msg NULL on success, otherwise an error message
155 remove_next (void *cls, int success, const char *msg)
157 struct CpsRunContext *crc = cls;
159 if (GNUNET_OK != success)
161 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "remove_next failed: `%s'\n", msg);
162 crc->phase = RP_ERROR;
163 GNUNET_SCHEDULER_add_now (&run_continuation, crc);
167 fprintf (stderr, "D");
169 GNUNET_assert (GNUNET_OK == success);
170 GNUNET_SCHEDULER_add_now (&run_continuation, crc);
175 delete_value (void *cls,
176 const GNUNET_HashCode * key,
179 enum GNUNET_BLOCK_Type type,
182 struct GNUNET_TIME_Absolute expiration, uint64_t uid)
184 struct CpsRunContext *crc = cls;
186 GNUNET_assert (NULL != key);
188 stored_bytes -= size;
191 if (stored_bytes < MAX_SIZE)
193 GNUNET_assert (NULL !=
194 GNUNET_DATASTORE_remove (datastore,
198 1, 1, TIMEOUT, &remove_next, crc));
203 run_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
205 struct CpsRunContext *crc = cls;
207 static GNUNET_HashCode key;
208 static char data[65536];
213 ok = (int) crc->phase;
217 memset (&key, 256 - crc->i, sizeof (GNUNET_HashCode));
220 /* most content is 32k */
222 if (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16) == 0) /* but some of it is less! */
223 size = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 32 * 1024);
224 crc->size = size = size - (size & 7); /* always multiple of 8 */
225 GNUNET_CRYPTO_hash (&key, sizeof (GNUNET_HashCode), &key);
226 memset (data, i, size);
228 memset (data, i - 255, size / 2);
230 GNUNET_assert (NULL !=
231 GNUNET_DATASTORE_put (datastore,
237 GNUNET_CRYPTO_random_u32
238 (GNUNET_CRYPTO_QUALITY_WEAK, 100), i,
240 GNUNET_TIME_relative_to_absolute
241 (GNUNET_TIME_relative_multiply
242 (GNUNET_TIME_UNIT_SECONDS,
243 GNUNET_CRYPTO_random_u32
244 (GNUNET_CRYPTO_QUALITY_WEAK, 1000))),
245 1, 1, TIMEOUT, &check_success, crc));
248 /* trim down below MAX_SIZE again */
249 GNUNET_assert (NULL !=
250 GNUNET_DATASTORE_get_for_replication (datastore,
252 &delete_value, crc));
259 "Stored %llu kB / %lluk ops / %llu ops/s\n", stored_bytes / 1024, /* used size in k */
260 stored_ops / 1024, /* total operations (in k) */
261 1000 * stored_ops / (1 +
262 GNUNET_TIME_absolute_get_duration
263 (start_time).rel_value));
266 GNUNET_SCHEDULER_add_continuation (&run_continuation,
268 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
271 GNUNET_snprintf (gstr, sizeof (gstr), "DATASTORE-%s", plugin_name);
272 if ((crc->i == ITERATIONS) && (stored_ops > 0))
274 "PUT operation duration",
275 GNUNET_TIME_absolute_get_duration (start_time).rel_value /
276 stored_ops, "ms/operation");
277 GNUNET_DATASTORE_disconnect (datastore, GNUNET_YES);
282 GNUNET_DATASTORE_disconnect (datastore, GNUNET_YES);
293 run_tests (void *cls, int success, const char *msg)
295 struct CpsRunContext *crc = cls;
297 if (success != GNUNET_YES)
300 "Test 'put' operation failed with error `%s' database likely not setup, skipping test.",
305 GNUNET_SCHEDULER_add_continuation (&run_continuation,
306 crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
313 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
315 struct CpsRunContext *crc;
316 static GNUNET_HashCode zkey;
318 datastore = GNUNET_DATASTORE_connect (cfg);
319 start_time = GNUNET_TIME_absolute_get ();
320 crc = GNUNET_malloc (sizeof (struct CpsRunContext));
324 GNUNET_DATASTORE_put (datastore, 0,
326 GNUNET_BLOCK_TYPE_TEST,
328 GNUNET_TIME_relative_to_absolute
329 (GNUNET_TIME_UNIT_SECONDS), 0, 1,
330 GNUNET_TIME_UNIT_MINUTES, &run_tests, crc))
332 fprintf (stderr, "Test 'put' operation failed.\n");
342 struct GNUNET_OS_Process *proc;
345 char *const argv[] = {
346 "perf-datastore-api",
354 struct GNUNET_GETOPT_CommandLineOption options[] = {
355 GNUNET_GETOPT_OPTION_END
358 GNUNET_snprintf (cfg_name,
360 "test_datastore_api_data_%s.conf", plugin_name);
361 proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
362 "gnunet-service-arm",
366 "-c", cfg_name, NULL);
367 GNUNET_assert (NULL != proc);
368 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
369 argv, "perf-datastore-api", "nohelp",
370 options, &run, NULL);
371 sleep (1); /* give datastore chance to process 'DROP' */
372 if (0 != GNUNET_OS_process_kill (proc, SIGTERM))
374 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
377 GNUNET_OS_process_wait (proc);
378 GNUNET_OS_process_close (proc);
385 main (int argc, char *argv[])
392 /* determine name of plugin to use */
393 plugin_name = argv[0];
394 while (NULL != (pos = strstr (plugin_name, "_")))
395 plugin_name = pos + 1;
396 if (NULL != (pos = strstr (plugin_name, ".")))
399 pos = (char *) plugin_name;
401 GNUNET_snprintf (dir_name,
403 "/tmp/test-gnunet-datastore-%s", plugin_name);
404 GNUNET_DISK_directory_remove (dir_name);
405 GNUNET_log_setup ("perf-datastore-api",
413 if (pos != plugin_name)
416 fprintf (stderr, "\n");
418 GNUNET_DISK_directory_remove (dir_name);
422 /* end of perf_datastore_api.c */