/* This file is part of GNUnet. (C) 2010,2011 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 ats/perf_ats_mlp * @brief performance test for the MLP solver * @author Christian Grothoff * @author Matthias Wachs */ #include "platform.h" #include "gnunet_util_lib.h" #include "gnunet_statistics_service.h" #include "gnunet-service-ats_addresses_mlp.h" #define MLP_MAX_EXEC_DURATION GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 3) #define MLP_MAX_ITERATIONS INT_MAX #define DEF_PEERS 10 #define DEF_ADDRESSES_PER_PEER 5 #define DEF_ATS_VALUES 2 #define DEF_ATS_MAX_DELAY 30 #define DEF_ATS_MAX_DISTANCE 3 static unsigned int peers; static unsigned int addresses; static unsigned int numeric; static unsigned int update_percentage; static int start; static int end; struct ATS_Peer *p; struct ATS_Address *a; static int ret; static struct GNUNET_CONTAINER_MultiHashMap * amap; static struct GAS_MLP_Handle *mlp; GNUNET_SCHEDULER_TaskIdentifier shutdown_task; struct PeerContext { struct GNUNET_PeerIdentity id; struct Address *addr; }; struct Address { char *plugin; size_t plugin_len; void *addr; size_t addr_len; struct GNUNET_ATS_Information *ats; int ats_count; void *session; }; void do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) { unsigned int ca; GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutdown\n"); if (NULL != mlp) { GAS_mlp_done (mlp); mlp = NULL; } if (NULL != a) { for (ca=0; ca < (peers * addresses); ca++) { GNUNET_free (a[ca].plugin); GNUNET_free (a[ca].ats); } } if (NULL != amap) GNUNET_CONTAINER_multihashmap_destroy(amap); GNUNET_free_non_null (a); GNUNET_free_non_null (p); } static void update_addresses (struct ATS_Address * a, unsigned int addrs, unsigned int percentage) { if (percentage == 0) return; unsigned int ua = (addrs) * ((float) percentage / 100); GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Updating %u of %u addresses per peer\n", ua, addrs); unsigned int updated[addrs]; unsigned int u_types[DEF_ATS_VALUES]; unsigned int updates = 0; unsigned int u_type = 0; unsigned int u_val = 0; unsigned int cur = 0; u_types[0] = 0; u_types[1] = 0; for (cur = 0; cur < addrs; cur ++) { updated[cur] = 0; } cur = 0; while (updates < ua) { cur = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, addrs); if (0 == updated[cur]) { u_type = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_VALUES); switch (u_type) { case 0: do { u_val = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DELAY); GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating DELAY from %u to %u\n",a[cur].ats[u_type].value, u_val); } while (a[cur].ats[u_type].value == u_val); break; case 1: do { u_val = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DISTANCE); GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating DISTANCE from %u to %u\n",a[cur].ats[u_type].value, u_val); } while (a[cur].ats[u_type].value == u_val); break; default: GNUNET_break (0); break; } u_types[u_type]++; a[cur].ats[u_type].value = u_val; updated[cur] = 1; GAS_mlp_address_update(mlp, amap, &a[cur]); updates++; } } GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Updated %u delay and %u distance values\n", u_types[0], u_types[1]); } static void check (void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg) { unsigned int c = 0; unsigned int c2 = 0; unsigned int ca = 0; int update = GNUNET_NO; int range = GNUNET_NO; int res; #if !HAVE_LIBGLPK GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "GLPK not installed!"); ret = 1; return; #endif GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up %u peers with %u addresses per peer\n", peers, addresses); mlp = GAS_mlp_init (cfg, NULL, MLP_MAX_EXEC_DURATION, MLP_MAX_ITERATIONS); if (NULL == mlp) { GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to init MLP\n"); ret = 1; if (GNUNET_SCHEDULER_NO_TASK != shutdown_task) GNUNET_SCHEDULER_cancel(shutdown_task); shutdown_task = GNUNET_SCHEDULER_add_now (&do_shutdown, NULL); } if (peers == 0) peers = DEF_PEERS; if (addresses == 0) addresses = DEF_ADDRESSES_PER_PEER; p = GNUNET_malloc (peers * sizeof (struct ATS_Peer)); a = GNUNET_malloc (peers * addresses * sizeof (struct ATS_Address)); amap = GNUNET_CONTAINER_multihashmap_create(addresses * peers); mlp->auto_solve = GNUNET_NO; if (start == 0) start = 0; if (end == 0) end = -1; if ((start != -1) && (end != -1)) { GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Solving problem starting from %u to %u\n", start , end); range = GNUNET_YES; } else GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Solving problem for %u peers\n", peers); if ((update_percentage >= 0) && (update_percentage <= 100)) { update = GNUNET_YES; GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Benchmarking with existing presolution and %u%% updated addresses\n", update_percentage); } else if ((update_percentage > 100) && (update_percentage != UINT_MAX)) { GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Invalid percentage: %u\n", update_percentage); ret = 1; return; } for (c=0; c < peers; c++) { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up peer %u\n", c); GNUNET_CRYPTO_hash_create_random(GNUNET_CRYPTO_QUALITY_NONCE, &p[c].id.hashPubKey); for (c2=0; c2 < addresses; c2++) { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up address %u for peer %u\n", c2, c); /* Setting required information */ a[ca].mlp_information = NULL; a[ca].prev = NULL; a[ca].next = NULL; /* Setting address */ a[ca].peer = p[c].id; a[ca].plugin = GNUNET_strdup("test"); a[ca].atsp_network_type = GNUNET_ATS_NET_LOOPBACK; a[ca].ats = GNUNET_malloc (DEF_ATS_VALUES * sizeof (struct GNUNET_ATS_Information)); a[ca].ats[0].type = GNUNET_ATS_QUALITY_NET_DELAY; a[ca].ats[0].value = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DELAY); a[ca].ats[1].type = GNUNET_ATS_QUALITY_NET_DISTANCE; a[ca].ats[1].value = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DISTANCE); a[ca].ats_count = 2; GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up address %u\n", ca); GNUNET_CONTAINER_multihashmap_put (amap, &a[ca].peer.hashPubKey, &a[ca], GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE); GAS_mlp_address_update(mlp, amap, &a[ca]); ca++; } GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Problem contains %u peers and %u adresses\n", mlp->c_p, mlp->addr_in_problem); if (((GNUNET_YES == range) && (((start >= 0) && ((c+1) >= start)) && (c <= end))) || ((c+1) == peers)) { GNUNET_assert ((c+1) == mlp->c_p); GNUNET_assert ((c+1) * addresses == mlp->addr_in_problem); /* Solving the problem */ struct GAS_MLP_SolutionContext ctx; res = GAS_mlp_solve_problem(mlp, &ctx); if (GNUNET_NO == update) { if (GNUNET_OK == res) { GNUNET_assert (GNUNET_OK == ctx.lp_result); GNUNET_assert (GNUNET_OK == ctx.mlp_result); if (GNUNET_YES == numeric) printf ("%u;%u;%llu;%llu\n",mlp->c_p, mlp->addr_in_problem, (unsigned long long) ctx.lp_duration.rel_value, (unsigned long long) ctx.mlp_duration.rel_value); else GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Problem solved for %u peers with %u address successfully (LP: %llu ms / MLP: %llu ms)\n", mlp->c_p, mlp->addr_in_problem, ctx.lp_duration.rel_value, ctx.mlp_duration.rel_value); } else GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Solving problem with %u peers and %u addresses failed\n", c, c2); } else { struct GAS_MLP_SolutionContext uctx; /* Update addresses */ update_addresses (a, (c+1) * c2, update_percentage); /* Solve again */ res = GAS_mlp_solve_problem(mlp, &uctx); if (GNUNET_OK == res) { GNUNET_assert (GNUNET_OK == uctx.lp_result); GNUNET_assert (GNUNET_OK == uctx.mlp_result); if (GNUNET_YES == numeric) printf ("%u;%u;%llu;%llu;%llu;%llu\n",mlp->c_p, mlp->addr_in_problem, (unsigned long long) ctx.lp_duration.rel_value, (unsigned long long) ctx.mlp_duration.rel_value, (unsigned long long) uctx.lp_duration.rel_value, (unsigned long long) uctx.mlp_duration.rel_value); else GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Updated problem solved for %u peers with %u address successfully (Initial: LP/MLP: %llu/%llu ms, Update: %llu/%llu ms)\n", mlp->c_p, mlp->addr_in_problem, (unsigned long long) ctx.lp_duration.rel_value, (unsigned long long) ctx.mlp_duration.rel_value, (unsigned long long) uctx.lp_duration.rel_value, (unsigned long long) uctx.mlp_duration.rel_value); } else GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Solving updated problem with %u peers and %u addresses failed\n", c, c2); } } } if (GNUNET_SCHEDULER_NO_TASK != shutdown_task) GNUNET_SCHEDULER_cancel(shutdown_task); shutdown_task = GNUNET_SCHEDULER_add_now (&do_shutdown, NULL); } int main (int argc, char *argv[]) { /* Init invalid */ update_percentage = UINT_MAX; static struct GNUNET_GETOPT_CommandLineOption options[] = { {'a', "addresses", NULL, gettext_noop ("addresses per peer"), 1, &GNUNET_GETOPT_set_uint, &addresses}, {'p', "peers", NULL, gettext_noop ("peers"), 1, &GNUNET_GETOPT_set_uint, &peers}, {'n', "numeric", NULL, gettext_noop ("numeric output only"), 0, &GNUNET_GETOPT_set_one, &numeric}, {'e', "end", NULL, gettext_noop ("end solving problem"), 1, &GNUNET_GETOPT_set_uint, &end}, {'s', "start", NULL, gettext_noop ("start solving problem"), 1, &GNUNET_GETOPT_set_uint, &start}, {'u', "update", NULL, gettext_noop ("benchmark with existing solution (address updates)"), 1, &GNUNET_GETOPT_set_uint, &update_percentage}, GNUNET_GETOPT_OPTION_END }; GNUNET_PROGRAM_run (argc, argv, "perf_ats_mlp", "nohelp", options, &check, NULL); return ret; } /* end of file perf_ats_mlp.c */