source/torture/raw/lockbench.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    locking benchmark
   5
   6    Copyright (C) Andrew Tridgell 2006
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "torture/torture.h"
  24 #include "libcli/raw/libcliraw.h"
  25 #include "system/time.h"
  26 #include "system/filesys.h"
  27 #include "libcli/libcli.h"
  28 #include "torture/util.h"
  29 #include "lib/events/events.h"
  30 #include "lib/cmdline/popt_common.h"
  31 #include "libcli/composite/composite.h"
  32 #include "libcli/smb_composite/smb_composite.h"
  33 #include "param/param.h"
  34
  35 #define BASEDIR "\\benchlock"
  36 #define FNAME BASEDIR "\\lock.dat"
  37
  38 static int nprocs;
  39 static int lock_failed;
  40 static int num_connected;
  41
  42 enum lock_stage {LOCK_INITIAL, LOCK_LOCK, LOCK_UNLOCK};
  43
  44 struct benchlock_state {
  45         struct event_context *ev;
  46         struct smbcli_tree *tree;
  47         TALLOC_CTX *mem_ctx;
  48         int client_num;
  49         int fnum;
  50         enum lock_stage stage;
  51         int lock_offset;
  52         int unlock_offset;
  53         int count;
  54         int lastcount;
  55         struct smbcli_request *req;
  56         struct smb_composite_connect reconnect;
  57         struct timed_event *te;
  58
  59         /* these are used for reconnections */
  60         int dest_port;
  61         const char *dest_host;
  62         const char *called_name;
  63         const char *service_type;
  64 };
  65
  66 static void lock_completion(struct smbcli_request *);
  67
  68 /*
  69   send the next lock request
  70 */
  71 static void lock_send(struct benchlock_state *state)
  72 {
  73         union smb_lock io;
  74         struct smb_lock_entry lock;
  75
  76         switch (state->stage) {
  77         case LOCK_INITIAL:
  78                 io.lockx.in.ulock_cnt = 0;
  79                 io.lockx.in.lock_cnt = 1;
  80                 state->lock_offset = 0;
  81                 state->unlock_offset = 0;
  82                 lock.offset = state->lock_offset;
  83                 break;
  84         case LOCK_LOCK:
  85                 io.lockx.in.ulock_cnt = 0;
  86                 io.lockx.in.lock_cnt = 1;
  87                 state->lock_offset = (state->lock_offset+1)%(nprocs+1);
  88                 lock.offset = state->lock_offset;
  89                 break;
  90         case LOCK_UNLOCK:
  91                 io.lockx.in.ulock_cnt = 1;
  92                 io.lockx.in.lock_cnt = 0;
  93                 lock.offset = state->unlock_offset;
  94                 state->unlock_offset = (state->unlock_offset+1)%(nprocs+1);
  95                 break;
  96         }
  97
  98         lock.count = 1;
  99         lock.pid = state->tree->session->pid;
 100
 101         io.lockx.level = RAW_LOCK_LOCKX;
 102         io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
 103         io.lockx.in.timeout = 100000;
 104         io.lockx.in.locks = &lock;
 105         io.lockx.in.file.fnum = state->fnum;
 106
 107         state->req = smb_raw_lock_send(state->tree, &io);
 108         if (state->req == NULL) {
 109                 DEBUG(0,("Failed to setup lock\n"));
 110                 lock_failed++;
 111         }
 112         state->req->async.private = state;
 113         state->req->async.fn      = lock_completion;
 114 }
 115
 116 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 117                               struct timeval t, void *private_data);
 118
 119
 120 static void reopen_file(struct event_context *ev, struct timed_event *te,
 121                                       struct timeval t, void *private_data)
 122 {
 123         struct benchlock_state *state = (struct benchlock_state *)private_data;
 124
 125         /* reestablish our open file */
 126         state->fnum = smbcli_open(state->tree, FNAME, O_RDWR|O_CREAT, DENY_NONE);
 127         if (state->fnum == -1) {
 128                 printf("Failed to open %s on connection %d\n", FNAME, state->client_num);
 129                 exit(1);
 130         }
 131
 132         num_connected++;
 133
 134         DEBUG(0,("reconnect to %s finished (%u connected)\n", state->dest_host,
 135                  num_connected));
 136
 137         state->stage = LOCK_INITIAL;
 138         lock_send(state);
 139 }
 140
 141 /*
 142   complete an async reconnect
 143  */
 144 static void reopen_connection_complete(struct composite_context *ctx)
 145 {
 146         struct benchlock_state *state = (struct benchlock_state *)ctx->async.private_data;
 147         NTSTATUS status;
 148         struct smb_composite_connect *io = &state->reconnect;
 149
 150         status = smb_composite_connect_recv(ctx, state->mem_ctx);
 151         if (!NT_STATUS_IS_OK(status)) {
 152                 talloc_free(state->te);
 153                 state->te = event_add_timed(state->ev, state->mem_ctx,
 154                                             timeval_current_ofs(1,0),
 155                                             reopen_connection, state);
 156                 return;
 157         }
 158
 159         talloc_free(state->tree);
 160         state->tree = io->out.tree;
 161
 162         /* do the reopen as a separate event */
 163         event_add_timed(state->ev, state->mem_ctx, timeval_zero(), reopen_file, state);
 164 }
 165
 166
 167
 168 /*
 169   reopen a connection
 170  */
 171 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 172                               struct timeval t, void *private_data)
 173 {
 174         struct benchlock_state *state = (struct benchlock_state *)private_data;
 175         struct composite_context *ctx;
 176         struct smb_composite_connect *io = &state->reconnect;
 177         char *host, *share;
 178
 179         state->te = NULL;
 180
 181         if (!torture_get_conn_index(state->client_num, state->mem_ctx, &host, &share)) {
 182                 DEBUG(0,("Can't find host/share for reconnect?!\n"));
 183                 exit(1);
 184         }
 185
 186         io->in.dest_host    = state->dest_host;
 187         io->in.port         = state->dest_port;
 188         io->in.called_name  = state->called_name;
 189         io->in.service      = share;
 190         io->in.service_type = state->service_type;
 191         io->in.credentials  = cmdline_credentials;
 192         io->in.fallback_to_anonymous = false;
 193         io->in.workgroup    = lp_workgroup(global_loadparm);
 194
 195         /* kill off the remnants of the old connection */
 196         talloc_free(state->tree);
 197         state->tree = NULL;
 198
 199         ctx = smb_composite_connect_send(io, state->mem_ctx, state->ev);
 200         if (ctx == NULL) {
 201                 DEBUG(0,("Failed to setup async reconnect\n"));
 202                 exit(1);
 203         }
 204
 205         ctx->async.fn = reopen_connection_complete;
 206         ctx->async.private_data = state;
 207 }
 208
 209
 210 /*
 211   called when a lock completes
 212 */
 213 static void lock_completion(struct smbcli_request *req)
 214 {
 215         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
 216         NTSTATUS status = smbcli_request_simple_recv(req);
 217         state->req = NULL;
 218         if (!NT_STATUS_IS_OK(status)) {
 219                 if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE) ||
 220                     NT_STATUS_EQUAL(status, NT_STATUS_LOCAL_DISCONNECT)) {
 221                         talloc_free(state->tree);
 222                         state->tree = NULL;
 223                         num_connected--;
 224                         DEBUG(0,("reopening connection to %s\n", state->dest_host));
 225                         talloc_free(state->te);
 226                         state->te = event_add_timed(state->ev, state->mem_ctx,
 227                                                     timeval_current_ofs(1,0),
 228                                                     reopen_connection, state);
 229                 } else {
 230                         DEBUG(0,("Lock failed - %s\n", nt_errstr(status)));
 231                         lock_failed++;
 232                 }
 233                 return;
 234         }
 235
 236         switch (state->stage) {
 237         case LOCK_INITIAL:
 238                 state->stage = LOCK_LOCK;
 239                 break;
 240         case LOCK_LOCK:
 241                 state->stage = LOCK_UNLOCK;
 242                 break;
 243         case LOCK_UNLOCK:
 244                 state->stage = LOCK_LOCK;
 245                 break;
 246         }
 247
 248         state->count++;
 249         lock_send(state);
 250 }
 251
 252
 253 static void echo_completion(struct smbcli_request *req)
 254 {
 255         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
 256         NTSTATUS status = smbcli_request_simple_recv(req);
 257         if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE) ||
 258             NT_STATUS_EQUAL(status, NT_STATUS_LOCAL_DISCONNECT)) {
 259                 talloc_free(state->tree);
 260                 state->tree = NULL;
 261                 num_connected--;
 262                 DEBUG(0,("reopening connection to %s\n", state->dest_host));
 263                 talloc_free(state->te);
 264                 state->te = event_add_timed(state->ev, state->mem_ctx,
 265                                             timeval_current_ofs(1,0),
 266                                             reopen_connection, state);
 267         }
 268 }
 269
 270 static void report_rate(struct event_context *ev, struct timed_event *te,
 271                         struct timeval t, void *private_data)
 272 {
 273         struct benchlock_state *state = talloc_get_type(private_data,
 274                                                         struct benchlock_state);
 275         int i;
 276         for (i=0;i<nprocs;i++) {
 277                 printf("%5u ", (unsigned)(state[i].count - state[i].lastcount));
 278                 state[i].lastcount = state[i].count;
 279         }
 280         printf("\r");
 281         fflush(stdout);
 282         event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
 283
 284         /* send an echo on each interface to ensure it stays alive - this helps
 285            with IP takeover */
 286         for (i=0;i<nprocs;i++) {
 287                 struct smb_echo p;
 288                 struct smbcli_request *req;
 289
 290                 if (!state[i].tree) {
 291                         continue;
 292                 }
 293
 294                 p.in.repeat_count = 1;
 295                 p.in.size = 0;
 296                 p.in.data = NULL;
 297                 req = smb_raw_echo_send(state[i].tree->session->transport, &p);
 298                 req->async.private = &state[i];
 299                 req->async.fn      = echo_completion;
 300         }
 301 }
 302
 303 /*
 304    benchmark locking calls
 305 */
 306 bool torture_bench_lock(struct torture_context *torture)
 307 {
 308         bool ret = true;
 309         TALLOC_CTX *mem_ctx = talloc_new(torture);
 310         int i;
 311         int timelimit = torture_setting_int(torture, "timelimit", 10);
 312         struct timeval tv;
 313         struct event_context *ev = event_context_find(mem_ctx);
 314         struct benchlock_state *state;
 315         int total = 0, minops=0;
 316         struct smbcli_state *cli;
 317         bool progress;
 318
 319         progress = torture_setting_bool(torture, "progress", true);
 320
 321         nprocs = lp_parm_int(global_loadparm, NULL, "torture", "nprocs", 4);
 322
 323         state = talloc_zero_array(mem_ctx, struct benchlock_state, nprocs);
 324
 325         printf("Opening %d connections\n", nprocs);
 326         for (i=0;i<nprocs;i++) {
 327                 state[i].mem_ctx = talloc_new(state);
 328                 state[i].client_num = i;
 329                 state[i].ev = ev;
 330                 if (!torture_open_connection_ev(&cli, i, ev)) {
 331                         return false;
 332                 }
 333                 talloc_steal(mem_ctx, state);
 334                 state[i].tree = cli->tree;
 335                 state[i].dest_host = talloc_strdup(state[i].mem_ctx,
 336                                                    cli->tree->session->transport->socket->hostname);
 337                 state[i].dest_port = cli->tree->session->transport->socket->port;
 338                 state[i].called_name  = talloc_strdup(state[i].mem_ctx,
 339                                                       cli->tree->session->transport->called.name);
 340                 state[i].service_type = talloc_strdup(state[i].mem_ctx,
 341                                                       cli->tree->device);
 342         }
 343
 344         num_connected = i;
 345
 346         if (!torture_setup_dir(cli, BASEDIR)) {
 347                 goto failed;
 348         }
 349
 350         for (i=0;i<nprocs;i++) {
 351                 state[i].fnum = smbcli_open(state[i].tree,
 352                                             FNAME,
 353                                             O_RDWR|O_CREAT, DENY_NONE);
 354                 if (state[i].fnum == -1) {
 355                         printf("Failed to open %s on connection %d\n", FNAME, i);
 356                         goto failed;
 357                 }
 358
 359                 state[i].stage = LOCK_INITIAL;
 360                 lock_send(&state[i]);
 361         }
 362
 363         tv = timeval_current();
 364
 365         if (progress) {
 366                 event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
 367         }
 368
 369         printf("Running for %d seconds\n", timelimit);
 370         while (timeval_elapsed(&tv) < timelimit) {
 371                 event_loop_once(ev);
 372
 373                 if (lock_failed) {
 374                         DEBUG(0,("locking failed\n"));
 375                         goto failed;
 376                 }
 377         }
 378
 379         printf("%.2f ops/second\n", total/timeval_elapsed(&tv));
 380         minops = state[0].count;
 381         for (i=0;i<nprocs;i++) {
 382                 printf("[%d] %u ops\n", i, state[i].count);
 383                 if (state[i].count < minops) minops = state[i].count;
 384         }
 385         if (minops < 0.5*total/nprocs) {
 386                 printf("Failed: unbalanced locking\n");
 387                 goto failed;
 388         }
 389
 390         for (i=0;i<nprocs;i++) {
 391                 talloc_free(state[i].req);
 392                 smb_raw_exit(state[i].tree->session);
 393         }
 394
 395         smbcli_deltree(state[0].tree, BASEDIR);
 396         talloc_free(mem_ctx);
 397         printf("\n");
 398         return ret;
 399
 400 failed:
 401         talloc_free(mem_ctx);
 402         return false;
 403 }