source4/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 "libcli/resolve/resolve.h"
  34 #include "param/param.h"
  35
  36 #define BASEDIR "\\benchlock"
  37 #define FNAME BASEDIR "\\lock.dat"
  38
  39 static int nprocs;
  40 static int lock_failed;
  41 static int num_connected;
  42
  43 enum lock_stage {LOCK_INITIAL, LOCK_LOCK, LOCK_UNLOCK};
  44
  45 struct benchlock_state {
  46         struct torture_context *tctx;
  47         struct event_context *ev;
  48         struct smbcli_tree *tree;
  49         TALLOC_CTX *mem_ctx;
  50         int client_num;
  51         int fnum;
  52         enum lock_stage stage;
  53         int lock_offset;
  54         int unlock_offset;
  55         int count;
  56         int lastcount;
  57         struct smbcli_request *req;
  58         struct smb_composite_connect reconnect;
  59         struct timed_event *te;
  60
  61         /* these are used for reconnections */
  62         const char **dest_ports;
  63         const char *dest_host;
  64         const char *called_name;
  65         const char *service_type;
  66 };
  67
  68 static void lock_completion(struct smbcli_request *);
  69
  70 /*
  71   send the next lock request
  72 */
  73 static void lock_send(struct benchlock_state *state)
  74 {
  75         union smb_lock io;
  76         struct smb_lock_entry lock;
  77
  78         switch (state->stage) {
  79         case LOCK_INITIAL:
  80                 io.lockx.in.ulock_cnt = 0;
  81                 io.lockx.in.lock_cnt = 1;
  82                 state->lock_offset = 0;
  83                 state->unlock_offset = 0;
  84                 lock.offset = state->lock_offset;
  85                 break;
  86         case LOCK_LOCK:
  87                 io.lockx.in.ulock_cnt = 0;
  88                 io.lockx.in.lock_cnt = 1;
  89                 state->lock_offset = (state->lock_offset+1)%(nprocs+1);
  90                 lock.offset = state->lock_offset;
  91                 break;
  92         case LOCK_UNLOCK:
  93                 io.lockx.in.ulock_cnt = 1;
  94                 io.lockx.in.lock_cnt = 0;
  95                 lock.offset = state->unlock_offset;
  96                 state->unlock_offset = (state->unlock_offset+1)%(nprocs+1);
  97                 break;
  98         }
  99
 100         lock.count = 1;
 101         lock.pid = state->tree->session->pid;
 102
 103         io.lockx.level = RAW_LOCK_LOCKX;
 104         io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
 105         io.lockx.in.timeout = 100000;
 106         io.lockx.in.locks = &lock;
 107         io.lockx.in.file.fnum = state->fnum;
 108
 109         state->req = smb_raw_lock_send(state->tree, &io);
 110         if (state->req == NULL) {
 111                 DEBUG(0,("Failed to setup lock\n"));
 112                 lock_failed++;
 113         }
 114         state->req->async.private = state;
 115         state->req->async.fn      = lock_completion;
 116 }
 117
 118 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 119                               struct timeval t, void *private_data);
 120
 121
 122 static void reopen_file(struct event_context *ev, struct timed_event *te,
 123                                       struct timeval t, void *private_data)
 124 {
 125         struct benchlock_state *state = (struct benchlock_state *)private_data;
 126
 127         /* reestablish our open file */
 128         state->fnum = smbcli_open(state->tree, FNAME, O_RDWR|O_CREAT, DENY_NONE);
 129         if (state->fnum == -1) {
 130                 printf("Failed to open %s on connection %d\n", FNAME, state->client_num);
 131                 exit(1);
 132         }
 133
 134         num_connected++;
 135
 136         DEBUG(0,("reconnect to %s finished (%u connected)\n", state->dest_host,
 137                  num_connected));
 138
 139         state->stage = LOCK_INITIAL;
 140         lock_send(state);
 141 }
 142
 143 /*
 144   complete an async reconnect
 145  */
 146 static void reopen_connection_complete(struct composite_context *ctx)
 147 {
 148         struct benchlock_state *state = (struct benchlock_state *)ctx->async.private_data;
 149         NTSTATUS status;
 150         struct smb_composite_connect *io = &state->reconnect;
 151
 152         status = smb_composite_connect_recv(ctx, state->mem_ctx);
 153         if (!NT_STATUS_IS_OK(status)) {
 154                 talloc_free(state->te);
 155                 state->te = event_add_timed(state->ev, state->mem_ctx,
 156                                             timeval_current_ofs(1,0),
 157                                             reopen_connection, state);
 158                 return;
 159         }
 160
 161         talloc_free(state->tree);
 162         state->tree = io->out.tree;
 163
 164         /* do the reopen as a separate event */
 165         event_add_timed(state->ev, state->mem_ctx, timeval_zero(), reopen_file, state);
 166 }
 167
 168
 169
 170 /*
 171   reopen a connection
 172  */
 173 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 174                               struct timeval t, void *private_data)
 175 {
 176         struct benchlock_state *state = (struct benchlock_state *)private_data;
 177         struct composite_context *ctx;
 178         struct smb_composite_connect *io = &state->reconnect;
 179         char *host, *share;
 180
 181         state->te = NULL;
 182
 183         if (!torture_get_conn_index(state->client_num, state->mem_ctx, state->tctx, &host, &share)) {
 184                 DEBUG(0,("Can't find host/share for reconnect?!\n"));
 185                 exit(1);
 186         }
 187
 188         io->in.dest_host    = state->dest_host;
 189         io->in.dest_ports   = state->dest_ports;
 190         io->in.called_name  = state->called_name;
 191         io->in.service      = share;
 192         io->in.service_type = state->service_type;
 193         io->in.credentials  = cmdline_credentials;
 194         io->in.fallback_to_anonymous = false;
 195         io->in.workgroup    = lp_workgroup(state->tctx->lp_ctx);
 196         io->in.max_xmit = lp_max_xmit(state->tctx->lp_ctx);
 197         io->in.max_mux = lp_maxmux(state->tctx->lp_ctx);
 198         io->in.ntstatus_support = lp_nt_status_support(state->tctx->lp_ctx);
 199         io->in.max_protocol = lp_cli_maxprotocol(state->tctx->lp_ctx);
 200         io->in.unicode = lp_unicode(state->tctx->lp_ctx);
 201         io->in.use_spnego = lp_use_spnego(state->tctx->lp_ctx) && lp_nt_status_support(state->tctx->lp_ctx);
 202         io->in.signing = lp_client_signing(state->tctx->lp_ctx);
 203
 204         /* kill off the remnants of the old connection */
 205         talloc_free(state->tree);
 206         state->tree = NULL;
 207
 208         ctx = smb_composite_connect_send(io, state->mem_ctx,
 209                                          lp_resolve_context(state->tctx->lp_ctx),
 210                                          state->ev);
 211         if (ctx == NULL) {
 212                 DEBUG(0,("Failed to setup async reconnect\n"));
 213                 exit(1);
 214         }
 215
 216         ctx->async.fn = reopen_connection_complete;
 217         ctx->async.private_data = state;
 218 }
 219
 220
 221 /*
 222   called when a lock completes
 223 */
 224 static void lock_completion(struct smbcli_request *req)
 225 {
 226         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
 227         NTSTATUS status = smbcli_request_simple_recv(req);
 228         state->req = NULL;
 229         if (!NT_STATUS_IS_OK(status)) {
 230                 if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE) ||
 231                     NT_STATUS_EQUAL(status, NT_STATUS_LOCAL_DISCONNECT)) {
 232                         talloc_free(state->tree);
 233                         state->tree = NULL;
 234                         num_connected--;
 235                         DEBUG(0,("reopening connection to %s\n", state->dest_host));
 236                         talloc_free(state->te);
 237                         state->te = event_add_timed(state->ev, state->mem_ctx,
 238                                                     timeval_current_ofs(1,0),
 239                                                     reopen_connection, state);
 240                 } else {
 241                         DEBUG(0,("Lock failed - %s\n", nt_errstr(status)));
 242                         lock_failed++;
 243                 }
 244                 return;
 245         }
 246
 247         switch (state->stage) {
 248         case LOCK_INITIAL:
 249                 state->stage = LOCK_LOCK;
 250                 break;
 251         case LOCK_LOCK:
 252                 state->stage = LOCK_UNLOCK;
 253                 break;
 254         case LOCK_UNLOCK:
 255                 state->stage = LOCK_LOCK;
 256                 break;
 257         }
 258
 259         state->count++;
 260         lock_send(state);
 261 }
 262
 263
 264 static void echo_completion(struct smbcli_request *req)
 265 {
 266         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
 267         NTSTATUS status = smbcli_request_simple_recv(req);
 268         if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE) ||
 269             NT_STATUS_EQUAL(status, NT_STATUS_LOCAL_DISCONNECT)) {
 270                 talloc_free(state->tree);
 271                 state->tree = NULL;
 272                 num_connected--;
 273                 DEBUG(0,("reopening connection to %s\n", state->dest_host));
 274                 talloc_free(state->te);
 275                 state->te = event_add_timed(state->ev, state->mem_ctx,
 276                                             timeval_current_ofs(1,0),
 277                                             reopen_connection, state);
 278         }
 279 }
 280
 281 static void report_rate(struct event_context *ev, struct timed_event *te,
 282                         struct timeval t, void *private_data)
 283 {
 284         struct benchlock_state *state = talloc_get_type(private_data,
 285                                                         struct benchlock_state);
 286         int i;
 287         for (i=0;i<nprocs;i++) {
 288                 printf("%5u ", (unsigned)(state[i].count - state[i].lastcount));
 289                 state[i].lastcount = state[i].count;
 290         }
 291         printf("\r");
 292         fflush(stdout);
 293         event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
 294
 295         /* send an echo on each interface to ensure it stays alive - this helps
 296            with IP takeover */
 297         for (i=0;i<nprocs;i++) {
 298                 struct smb_echo p;
 299                 struct smbcli_request *req;
 300
 301                 if (!state[i].tree) {
 302                         continue;
 303                 }
 304
 305                 p.in.repeat_count = 1;
 306                 p.in.size = 0;
 307                 p.in.data = NULL;
 308                 req = smb_raw_echo_send(state[i].tree->session->transport, &p);
 309                 req->async.private = &state[i];
 310                 req->async.fn      = echo_completion;
 311         }
 312 }
 313
 314 /*
 315    benchmark locking calls
 316 */
 317 bool torture_bench_lock(struct torture_context *torture)
 318 {
 319         bool ret = true;
 320         TALLOC_CTX *mem_ctx = talloc_new(torture);
 321         int i;
 322         int timelimit = torture_setting_int(torture, "timelimit", 10);
 323         struct timeval tv;
 324         struct event_context *ev = event_context_find(mem_ctx);
 325         struct benchlock_state *state;
 326         int total = 0, minops=0;
 327         struct smbcli_state *cli;
 328         bool progress;
 329
 330         progress = torture_setting_bool(torture, "progress", true);
 331
 332         nprocs = torture_setting_int(torture, "nprocs", 4);
 333
 334         state = talloc_zero_array(mem_ctx, struct benchlock_state, nprocs);
 335
 336         printf("Opening %d connections\n", nprocs);
 337         for (i=0;i<nprocs;i++) {
 338                 state[i].tctx = torture;
 339                 state[i].mem_ctx = talloc_new(state);
 340                 state[i].client_num = i;
 341                 state[i].ev = ev;
 342                 if (!torture_open_connection_ev(&cli, i, torture, ev)) {
 343                         return false;
 344                 }
 345                 talloc_steal(mem_ctx, state);
 346                 state[i].tree = cli->tree;
 347                 state[i].dest_host = talloc_strdup(state[i].mem_ctx,
 348                                                    cli->tree->session->transport->socket->hostname);
 349                 state[i].dest_ports = talloc_array(state[i].mem_ctx,
 350                                                    const char *, 2);
 351                 state[i].dest_ports[0] = talloc_asprintf(state[i].dest_ports,
 352                                                          "%u",
 353                                                          cli->tree->session->transport->socket->port);
 354                 state[i].dest_ports[1] = NULL;
 355                 state[i].called_name  = talloc_strdup(state[i].mem_ctx,
 356                                                       cli->tree->session->transport->called.name);
 357                 state[i].service_type = talloc_strdup(state[i].mem_ctx,
 358                                                       cli->tree->device);
 359         }
 360
 361         num_connected = i;
 362
 363         if (!torture_setup_dir(cli, BASEDIR)) {
 364                 goto failed;
 365         }
 366
 367         for (i=0;i<nprocs;i++) {
 368                 state[i].fnum = smbcli_open(state[i].tree,
 369                                             FNAME,
 370                                             O_RDWR|O_CREAT, DENY_NONE);
 371                 if (state[i].fnum == -1) {
 372                         printf("Failed to open %s on connection %d\n", FNAME, i);
 373                         goto failed;
 374                 }
 375
 376                 state[i].stage = LOCK_INITIAL;
 377                 lock_send(&state[i]);
 378         }
 379
 380         tv = timeval_current();
 381
 382         if (progress) {
 383                 event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
 384         }
 385
 386         printf("Running for %d seconds\n", timelimit);
 387         while (timeval_elapsed(&tv) < timelimit) {
 388                 event_loop_once(ev);
 389
 390                 if (lock_failed) {
 391                         DEBUG(0,("locking failed\n"));
 392                         goto failed;
 393                 }
 394         }
 395
 396         printf("%.2f ops/second\n", total/timeval_elapsed(&tv));
 397         minops = state[0].count;
 398         for (i=0;i<nprocs;i++) {
 399                 printf("[%d] %u ops\n", i, state[i].count);
 400                 if (state[i].count < minops) minops = state[i].count;
 401         }
 402         if (minops < 0.5*total/nprocs) {
 403                 printf("Failed: unbalanced locking\n");
 404                 goto failed;
 405         }
 406
 407         for (i=0;i<nprocs;i++) {
 408                 talloc_free(state[i].req);
 409                 smb_raw_exit(state[i].tree->session);
 410         }
 411
 412         smbcli_deltree(state[0].tree, BASEDIR);
 413         talloc_free(mem_ctx);
 414         printf("\n");
 415         return ret;
 416
 417 failed:
 418         talloc_free(mem_ctx);
 419         return false;
 420 }