/* This file is part of GNUnet. (C) 2004, 2005, 2006, 2007, 2009 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 2, 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 datastore/perf_datastore_api.c * @brief performance measurement for the datastore implementation * @author Christian Grothoff * * This testcase inserts a bunch of (variable size) data and then * deletes data until the (reported) database size drops below a given * threshold. This is iterated 10 times, with the actual size of the * content stored and the number of operations performed being printed * for each iteration. The code also prints a "I" for every 40 blocks * inserted and a "D" for every 40 blocks deleted. The deletion * strategy uses the "random" iterator. Priorities and expiration * dates are set using a pseudo-random value within a realistic range. */ #include "platform.h" #include "gnunet_util_lib.h" #include "gnunet_protocols.h" #include "gnunet_datastore_service.h" #define VERBOSE GNUNET_NO /** * How long until we give up on transmitting the message? */ #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15) static struct GNUNET_DATASTORE_Handle *datastore; /** * Target datastore size (in bytes). */ #define MAX_SIZE 1024LL * 1024 * 4 /** * Report progress outside of major reports? Should probably be GNUNET_YES if * size is > 16 MB. */ #define REPORT_ID GNUNET_YES /** * Number of put operations equivalent to 1/3rd of MAX_SIZE */ #define PUT_10 MAX_SIZE / 32 / 1024 / 3 /** * Total number of iterations (each iteration doing * PUT_10 put operations); we report full status every * 10 iterations. Abort with CTRL-C. */ #define ITERATIONS 8 static unsigned long long stored_bytes; static unsigned long long stored_entries; static unsigned long long stored_ops; static struct GNUNET_TIME_Absolute start_time; static int ok; enum RunPhase { RP_DONE = 0, RP_PUT, RP_CUT, RP_REPORT }; struct CpsRunContext { struct GNUNET_SCHEDULER_Handle *sched; const struct GNUNET_CONFIGURATION_Handle *cfg; enum RunPhase phase; int j; unsigned long long size; int i; GNUNET_HashCode key; uint32_t esize; char data[65536]; }; static void run_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc); static void check_success (void *cls, int success, const char *msg) { struct CpsRunContext *crc = cls; if (GNUNET_OK != success) GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s\n", msg); GNUNET_assert (GNUNET_OK == success); #if REPORT_ID fprintf (stderr, "I"); #endif stored_bytes += crc->size; stored_ops++; stored_entries++; crc->j++; if (crc->j == PUT_10) { crc->j = 0; crc->i++; if (crc->i == ITERATIONS) crc->phase = RP_DONE; else crc->phase = RP_CUT; } GNUNET_SCHEDULER_add_continuation (crc->sched, &run_continuation, crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE); } /** * Continuation called to notify client about result of the * operation. * * @param cls closure * @param success GNUNET_SYSERR on failure * @param msg NULL on success, otherwise an error message */ static void remove_next(void *cls, int success, const char *msg) { struct CpsRunContext *crc = cls; #if REPORT_ID fprintf (stderr, "D"); #endif GNUNET_assert (GNUNET_OK == success); GNUNET_SCHEDULER_add_continuation (crc->sched, &run_continuation, crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE); } static void do_delete (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) { struct CpsRunContext *crc = cls; stored_bytes -= crc->esize; stored_entries--; stored_ops++; GNUNET_DATASTORE_remove (datastore, &crc->key, crc->esize, crc->data, &remove_next, crc, TIMEOUT); } static void delete_value (void *cls, const GNUNET_HashCode * key, uint32_t size, const void *data, uint32_t type, uint32_t priority, uint32_t anonymity, struct GNUNET_TIME_Absolute expiration, uint64_t uid) { struct CpsRunContext *crc = cls; if (key == NULL) { if (stored_bytes < MAX_SIZE) { crc->phase = RP_REPORT; GNUNET_SCHEDULER_add_continuation (crc->sched, &run_continuation, crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE); return; } GNUNET_SCHEDULER_add_with_priority (crc->sched, GNUNET_SCHEDULER_PRIORITY_HIGH, &do_delete, crc); return; } stored_ops++; if (stored_bytes < MAX_SIZE) { GNUNET_DATASTORE_get_next (datastore, GNUNET_YES); return; } crc->key = *key; crc->esize = size; memcpy (crc->data, data, size); GNUNET_DATASTORE_get_next (datastore, GNUNET_YES); } static void run_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) { struct CpsRunContext *crc = cls; size_t size; static GNUNET_HashCode key; static char data[65536]; int i; int k; ok = (int) crc->phase; switch (crc->phase) { case RP_PUT: memset (&key, 256 - crc->i, sizeof (GNUNET_HashCode)); i = crc->j; k = crc->i; /* most content is 32k */ size = 32 * 1024; if (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 16) == 0) /* but some of it is less! */ size = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 32 * 1024); crc->size = size = size - (size & 7); /* always multiple of 8 */ GNUNET_CRYPTO_hash (&key, sizeof (GNUNET_HashCode), &key); memset (data, i, size); if (i > 255) memset (data, i - 255, size / 2); data[0] = k; GNUNET_DATASTORE_put (datastore, 0, &key, size, data, i+1, GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 100), i, GNUNET_TIME_relative_to_absolute (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 1000))), TIMEOUT, &check_success, crc); break; case RP_CUT: /* trim down below MAX_SIZE again */ GNUNET_DATASTORE_get_random (datastore, &delete_value, crc, TIMEOUT); break; case RP_REPORT: printf ( #if REPORT_ID "\n" #endif "Stored %llu kB / %lluk ops / %llu ops/s\n", stored_bytes / 1024, /* used size in k */ stored_ops / 1024, /* total operations (in k) */ 1000 * stored_ops / (1 + GNUNET_TIME_absolute_get_duration(start_time).value)); crc->phase = RP_PUT; crc->j = 0; GNUNET_SCHEDULER_add_continuation (crc->sched, &run_continuation, crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE); break; case RP_DONE: GNUNET_DATASTORE_disconnect (datastore, GNUNET_YES); GNUNET_free (crc); ok = 0; break; default: GNUNET_assert (0); } } static void run (void *cls, struct GNUNET_SCHEDULER_Handle *sched, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg) { struct CpsRunContext *crc; datastore = GNUNET_DATASTORE_connect (cfg, sched); start_time = GNUNET_TIME_absolute_get (); crc = GNUNET_malloc(sizeof(struct CpsRunContext)); crc->sched = sched; crc->cfg = cfg; crc->phase = RP_PUT; GNUNET_SCHEDULER_add_continuation (crc->sched, &run_continuation, crc, GNUNET_SCHEDULER_REASON_PREREQ_DONE); } static int check () { pid_t pid; char *const argv[] = { "perf-datastore-api", "-c", "test_datastore_api_data.conf", #if VERBOSE "-L", "DEBUG", #endif NULL }; struct GNUNET_GETOPT_CommandLineOption options[] = { GNUNET_GETOPT_OPTION_END }; pid = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm", "gnunet-service-arm", #if VERBOSE "-L", "DEBUG", #endif "-c", "test_datastore_api_data.conf", NULL); GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv, "perf-datastore-api", "nohelp", options, &run, NULL); if (0 != PLIBC_KILL (pid, SIGTERM)) { GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill"); ok = 1; } GNUNET_OS_process_wait(pid); return ok; } int main (int argc, char *argv[]) { int ret; GNUNET_DISK_directory_remove ("/tmp/test-gnunet-datastore"); GNUNET_log_setup ("perf-datastore-api", #if VERBOSE "DEBUG", #else "WARNING", #endif NULL); ret = check (); #if REPORT_ID fprintf (stderr, "\n"); #endif GNUNET_DISK_directory_remove ("/tmp/test-gnunet-datastore"); return ret; } /* end of perf_datastore_api.c */