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3 (C) 2010,2011 Christian Grothoff (and other contributing authors)
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21 * @file ats/perf_ats_mlp
22 * @brief performance test for the MLP solver
23 * @author Christian Grothoff
24 * @author Matthias Wachs
28 #include "gnunet_util_lib.h"
29 #include "gnunet_statistics_service.h"
30 #include "gnunet-service-ats_addresses_mlp.h"
32 #define VERBOSE GNUNET_YES
33 #define VERBOSE_ARM GNUNET_NO
35 #define MLP_MAX_EXEC_DURATION GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 3)
36 #define MLP_MAX_ITERATIONS INT_MAX
39 #define DEF_ADDRESSES_PER_PEER 5
40 #define DEF_ATS_VALUES 2
41 #define DEF_ATS_MAX_DELAY 30
42 #define DEF_ATS_MAX_DISTANCE 3
44 static unsigned int peers;
45 static unsigned int addresses;
46 static unsigned int numeric;
47 static unsigned int update_percentage;
52 struct PeerContext *p;
53 struct ATS_Address *a;
57 struct GNUNET_CONTAINER_MultiHashMap * amap;
59 struct GAS_MLP_Handle *mlp;
64 GNUNET_SCHEDULER_TaskIdentifier shutdown_task;
68 struct GNUNET_PeerIdentity id;
81 struct GNUNET_ATS_Information *ats;
88 do_shutdown (void *cls,
89 const struct GNUNET_SCHEDULER_TaskContext *tc)
93 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutdown\n");
103 for (ca=0; ca < (peers * addresses); ca++)
105 GNUNET_free (a[ca].plugin);
106 GNUNET_free (a[ca].ats);
111 GNUNET_CONTAINER_multihashmap_destroy(amap);
112 GNUNET_free_non_null (a);
113 GNUNET_free_non_null (p);
118 update_addresses (struct ATS_Address * a, unsigned int addrs, unsigned int percentage)
123 unsigned int ua = (addrs) * ((float) percentage / 100);
124 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Updating %u of %u addresses per peer\n", ua, addrs);
126 unsigned int updated[addrs];
127 unsigned int u_types[DEF_ATS_VALUES];
128 unsigned int updates = 0;
129 unsigned int u_type = 0;
130 unsigned int u_val = 0;
131 unsigned int cur = 0;
138 cur = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, addrs);
139 if (0 == updated[cur])
141 u_type = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_VALUES);
146 u_val = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DELAY);
147 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating DELAY from %u to %u\n",a[cur].ats[u_type].value, u_val);
149 while (a[cur].ats[u_type].value == u_val);
154 u_val = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DISTANCE);
155 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Updating DISTANCE from %u to %u\n",a[cur].ats[u_type].value, u_val);
157 while (a[cur].ats[u_type].value == u_val);
165 a[cur].ats[u_type].value = u_val;
170 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Updated %u delay and %u distance values\n", u_types[0], u_types[1]);
176 check (void *cls, char *const *args, const char *cfgfile,
177 const struct GNUNET_CONFIGURATION_Handle *cfg)
182 int update = GNUNET_NO;
183 int range = GNUNET_NO;
187 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "GLPK not installed!");
192 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up %u peers with %u addresses per peer\n", peers, addresses);
194 mlp = GAS_mlp_init (cfg, NULL, MLP_MAX_EXEC_DURATION, MLP_MAX_ITERATIONS);
197 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failed to init MLP\n");
199 if (GNUNET_SCHEDULER_NO_TASK != shutdown_task)
200 GNUNET_SCHEDULER_cancel(shutdown_task);
201 shutdown_task = GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
207 addresses = DEF_ADDRESSES_PER_PEER;
209 p = GNUNET_malloc (peers * sizeof (struct ATS_Peer));
210 a = GNUNET_malloc (peers * addresses * sizeof (struct ATS_Address));
212 amap = GNUNET_CONTAINER_multihashmap_create(addresses * peers);
214 mlp->auto_solve = GNUNET_NO;
219 if ((start != -1) && (end != -1))
221 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Solving problem starting from %u to %u\n", start , end);
225 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Solving problem for %u peers\n", peers);
227 if ((update_percentage >= 0) && (update_percentage <= 100))
230 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Benchmarking with existing presolution and %u \% updated addresses\n", update_percentage);
232 else if ((update_percentage > 100) && (update_percentage != UINT_MAX))
234 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Invalid percentage: %u\n", update_percentage);
239 for (c=0; c < peers; c++)
241 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up peer %u\n", c);
242 GNUNET_CRYPTO_hash_create_random(GNUNET_CRYPTO_QUALITY_NONCE, &p[c].id.hashPubKey);
244 for (c2=0; c2 < addresses; c2++)
246 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up address %u for peer %u\n", c2, c);
247 /* Setting required information */
248 a[ca].mlp_information = NULL;
252 /* Setting address */
253 a[ca].peer = p[c].id;
254 a[ca].plugin = strdup("test");
255 a[ca].atsp_network_type = GNUNET_ATS_NET_LOOPBACK;
257 a[ca].ats = GNUNET_malloc (DEF_ATS_VALUES * sizeof (struct GNUNET_ATS_Information));
258 a[ca].ats[0].type = GNUNET_ATS_QUALITY_NET_DELAY;
259 a[ca].ats[0].value = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DELAY);
260 a[ca].ats[1].type = GNUNET_ATS_QUALITY_NET_DISTANCE;
261 a[ca].ats[1].value = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, DEF_ATS_MAX_DISTANCE);
263 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting up address %u\n", ca);
264 GNUNET_CONTAINER_multihashmap_put (amap, &a[ca].peer.hashPubKey, &a[ca], GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
265 GAS_mlp_address_update(mlp, amap, &a[ca]);
269 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Problem contains %u peers and %u adresses\n", mlp->c_p, mlp->addr_in_problem);
271 if (((GNUNET_YES == range) && (((start >= 0) && ((c+1) >= start)) && (c <= end))) || ((c+1) == peers))
273 GNUNET_assert ((c+1) == mlp->c_p);
274 GNUNET_assert ((c+1) * addresses == mlp->addr_in_problem);
276 /* Solving the problem */
277 struct GAS_MLP_SolutionContext ctx;
279 res = GAS_mlp_solve_problem(mlp, &ctx);
281 if (GNUNET_NO == update)
283 if (GNUNET_OK == res)
285 GNUNET_assert (GNUNET_OK == ctx.lp_result);
286 GNUNET_assert (GNUNET_OK == ctx.mlp_result);
287 if (GNUNET_YES == numeric)
288 printf ("%u;%u;%llu;%llu\n",mlp->c_p, mlp->addr_in_problem, (long long unsigned int) ctx.lp_duration.rel_value, (long long unsigned int) ctx.mlp_duration.rel_value);
290 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Problem solved for %u peers with %u address successfully (LP: %llu ms / MLP: %llu ms)\n",
291 mlp->c_p, mlp->addr_in_problem, ctx.lp_duration.rel_value, ctx.mlp_duration.rel_value);
294 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Solving problem with %u peers and %u addresses failed\n", c, c2);
298 struct GAS_MLP_SolutionContext uctx;
299 /* Update addresses */
300 update_addresses (a, (c+1) * c2, update_percentage);
303 res = GAS_mlp_solve_problem(mlp, &uctx);
305 if (GNUNET_OK == res)
307 GNUNET_assert (GNUNET_OK == uctx.lp_result);
308 GNUNET_assert (GNUNET_OK == uctx.mlp_result);
309 if (GNUNET_YES == numeric)
310 printf ("%u;%u;%llu;%llu;%llu;%llu\n",mlp->c_p, mlp->addr_in_problem,
311 (long long unsigned int) ctx.lp_duration.rel_value, (long long unsigned int) ctx.mlp_duration.rel_value,
312 (long long unsigned int) uctx.lp_duration.rel_value, (long long unsigned int) uctx.mlp_duration.rel_value);
314 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",
315 mlp->c_p, mlp->addr_in_problem,
316 (long long unsigned int) ctx.lp_duration.rel_value, (long long unsigned int) ctx.mlp_duration.rel_value,
317 (long long unsigned int) uctx.lp_duration.rel_value, (long long unsigned int) uctx.mlp_duration.rel_value);
320 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Solving updated problem with %u peers and %u addresses failed\n", c, c2);
325 if (GNUNET_SCHEDULER_NO_TASK != shutdown_task)
326 GNUNET_SCHEDULER_cancel(shutdown_task);
327 shutdown_task = GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
333 main (int argc, char *argv[])
336 update_percentage = UINT_MAX;
337 static struct GNUNET_GETOPT_CommandLineOption options[] = {
338 {'a', "addresses", NULL,
339 gettext_noop ("addresses per peer"), 1,
340 &GNUNET_GETOPT_set_uint, &addresses},
342 gettext_noop ("peers"), 1,
343 &GNUNET_GETOPT_set_uint, &peers},
344 {'n', "numeric", NULL,
345 gettext_noop ("numeric output only"), 0,
346 &GNUNET_GETOPT_set_one, &numeric},
348 gettext_noop ("end solving problem"), 1,
349 &GNUNET_GETOPT_set_uint, &end},
351 gettext_noop ("start solving problem"), 1,
352 &GNUNET_GETOPT_set_uint, &start},
353 {'u', "update", NULL,
354 gettext_noop ("benchmark with existing solution (address updates)"), 1,
355 &GNUNET_GETOPT_set_uint, &update_percentage},
356 GNUNET_GETOPT_OPTION_END
360 GNUNET_PROGRAM_run (argc, argv,
361 "perf_ats_mlp", "nohelp", options,
368 /* end of file perf_ats_mlp.c */