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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "torture/torture.h"
  25 #include "libcli/raw/libcliraw.h"
  26 #include "system/time.h"
  27 #include "system/filesys.h"
  28 #include "libcli/libcli.h"
  29 #include "torture/util.h"
  30 #include "lib/events/events.h"
  31 #include "lib/cmdline/popt_common.h"
  32 #include "libcli/composite/composite.h"
  33 #include "libcli/smb_composite/smb_composite.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
  58         /* these are used for reconnections */
  59         int dest_port;
  60         const char *dest_host;
  61         const char *called_name;
  62         const char *service_type;
  63 };
  64
  65 static void lock_completion(struct smbcli_request *);
  66
  67 /*
  68   send the next lock request
  69 */
  70 static void lock_send(struct benchlock_state *state)
  71 {
  72         union smb_lock io;
  73         struct smb_lock_entry lock;
  74
  75         switch (state->stage) {
  76         case LOCK_INITIAL:
  77                 io.lockx.in.ulock_cnt = 0;
  78                 io.lockx.in.lock_cnt = 1;
  79                 state->lock_offset = 0;
  80                 state->unlock_offset = 0;
  81                 lock.offset = state->lock_offset;
  82                 break;
  83         case LOCK_LOCK:
  84                 io.lockx.in.ulock_cnt = 0;
  85                 io.lockx.in.lock_cnt = 1;
  86                 state->lock_offset = (state->lock_offset+1)%(nprocs+1);
  87                 lock.offset = state->lock_offset;
  88                 break;
  89         case LOCK_UNLOCK:
  90                 io.lockx.in.ulock_cnt = 1;
  91                 io.lockx.in.lock_cnt = 0;
  92                 lock.offset = state->unlock_offset;
  93                 state->unlock_offset = (state->unlock_offset+1)%(nprocs+1);
  94                 break;
  95         }
  96
  97         lock.count = 1;
  98         lock.pid = state->tree->session->pid;
  99
 100         io.lockx.level = RAW_LOCK_LOCKX;
 101         io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
 102         io.lockx.in.timeout = 100000;
 103         io.lockx.in.locks = &lock;
 104         io.lockx.in.file.fnum = state->fnum;
 105
 106         state->req = smb_raw_lock_send(state->tree, &io);
 107         if (state->req == NULL) {
 108                 DEBUG(0,("Failed to setup lock\n"));
 109                 lock_failed++;
 110         }
 111         state->req->async.private = state;
 112         state->req->async.fn      = lock_completion;
 113 }
 114
 115 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 116                               struct timeval t, void *private_data);
 117
 118
 119 static void reopen_file(struct event_context *ev, struct timed_event *te,
 120                                       struct timeval t, void *private_data)
 121 {
 122         struct benchlock_state *state = (struct benchlock_state *)private_data;
 123
 124         /* reestablish our open file */
 125         state->fnum = smbcli_open(state->tree, FNAME, O_RDWR|O_CREAT, DENY_NONE);
 126         if (state->fnum == -1) {
 127                 printf("Failed to open %s on connection %d\n", FNAME, state->client_num);
 128                 exit(1);
 129         }
 130
 131         num_connected++;
 132
 133         DEBUG(0,("reconnect to %s finished (%u connected)\n", state->dest_host,
 134                  num_connected));
 135
 136         state->stage = LOCK_INITIAL;
 137         lock_send(state);
 138 }
 139
 140 /*
 141   complete an async reconnect
 142  */
 143 static void reopen_connection_complete(struct composite_context *ctx)
 144 {
 145         struct benchlock_state *state = (struct benchlock_state *)ctx->async.private_data;
 146         NTSTATUS status;
 147         struct smb_composite_connect *io = &state->reconnect;
 148
 149         status = smb_composite_connect_recv(ctx, state->mem_ctx);
 150         if (!NT_STATUS_IS_OK(status)) {
 151                 event_add_timed(state->ev, state->mem_ctx,
 152                                 timeval_current_ofs(1,0),
 153                                 reopen_connection, state);
 154                 return;
 155         }
 156
 157         talloc_free(state->tree);
 158         state->tree = io->out.tree;
 159
 160         /* do the reopen as a separate event */
 161         event_add_timed(state->ev, state->mem_ctx, timeval_zero(), reopen_file, state);
 162 }
 163
 164
 165
 166 /*
 167   reopen a connection
 168  */
 169 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 170                               struct timeval t, void *private_data)
 171 {
 172         struct benchlock_state *state = (struct benchlock_state *)private_data;
 173         struct composite_context *ctx;
 174         struct smb_composite_connect *io = &state->reconnect;
 175         char *host, *share;
 176
 177         if (!torture_get_conn_index(state->client_num, state->mem_ctx, &host, &share)) {
 178                 DEBUG(0,("Can't find host/share for reconnect?!\n"));
 179                 exit(1);
 180         }
 181
 182         io->in.dest_host    = state->dest_host;
 183         io->in.port         = state->dest_port;
 184         io->in.called_name  = state->called_name;
 185         io->in.service      = share;
 186         io->in.service_type = state->service_type;
 187         io->in.credentials  = cmdline_credentials;
 188         io->in.fallback_to_anonymous = False;
 189         io->in.workgroup    = lp_workgroup();
 190
 191         /* kill off the remnants of the old connection */
 192         talloc_free(state->tree);
 193         state->tree = NULL;
 194
 195         ctx = smb_composite_connect_send(io, state->mem_ctx, state->ev);
 196         if (ctx == NULL) {
 197                 DEBUG(0,("Failed to setup async reconnect\n"));
 198                 exit(1);
 199         }
 200
 201         ctx->async.fn = reopen_connection_complete;
 202         ctx->async.private_data = state;
 203 }
 204
 205
 206 /*
 207   called when a lock completes
 208 */
 209 static void lock_completion(struct smbcli_request *req)
 210 {
 211         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
 212         NTSTATUS status = smbcli_request_simple_recv(req);
 213         state->req = NULL;
 214         if (!NT_STATUS_IS_OK(status)) {
 215                 if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
 216                         talloc_free(state->tree);
 217                         state->tree = NULL;
 218                         num_connected--;
 219                         DEBUG(0,("reopening connection to %s\n", state->dest_host));
 220                         event_add_timed(state->ev, state->mem_ctx,
 221                                         timeval_current_ofs(1,0),
 222                                         reopen_connection, state);
 223                 } else {
 224                         DEBUG(0,("Lock failed - %s\n", nt_errstr(status)));
 225                         lock_failed++;
 226                 }
 227                 return;
 228         }
 229
 230         switch (state->stage) {
 231         case LOCK_INITIAL:
 232                 state->stage = LOCK_LOCK;
 233                 break;
 234         case LOCK_LOCK:
 235                 state->stage = LOCK_UNLOCK;
 236                 break;
 237         case LOCK_UNLOCK:
 238                 state->stage = LOCK_LOCK;
 239                 break;
 240         }
 241
 242         state->count++;
 243         lock_send(state);
 244 }
 245
 246
 247 static void report_rate(struct event_context *ev, struct timed_event *te,
 248                         struct timeval t, void *private_data)
 249 {
 250         struct benchlock_state *state = talloc_get_type(private_data,
 251                                                         struct benchlock_state);
 252         int i;
 253         for (i=0;i<nprocs;i++) {
 254                 printf("%5u ", (unsigned)(state[i].count - state[i].lastcount));
 255                 state[i].lastcount = state[i].count;
 256         }
 257         printf("\r");
 258         fflush(stdout);
 259         event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
 260
 261         /* send an echo on each interface to ensure it stays alive - this helps
 262            with IP takeover */
 263         for (i=0;i<nprocs;i++) {
 264                 struct smb_echo p;
 265                 p.in.repeat_count = 0;
 266                 p.in.size = 0;
 267                 p.in.data = NULL;
 268                 smb_raw_echo_send(state[i].tree->session->transport, &p);
 269         }
 270 }
 271
 272 /*
 273    benchmark locking calls
 274 */
 275 BOOL torture_bench_lock(struct torture_context *torture)
 276 {
 277         BOOL ret = True;
 278         TALLOC_CTX *mem_ctx = talloc_new(torture);
 279         int i;
 280         int timelimit = torture_setting_int(torture, "timelimit", 10);
 281         struct timeval tv;
 282         struct event_context *ev = event_context_find(mem_ctx);
 283         struct benchlock_state *state;
 284         int total = 0, minops=0;
 285         struct smbcli_state *cli;
 286         bool progress;
 287
 288         progress = torture_setting_bool(torture, "progress", true);
 289
 290         nprocs = lp_parm_int(-1, "torture", "nprocs", 4);
 291
 292         state = talloc_zero_array(mem_ctx, struct benchlock_state, nprocs);
 293
 294         printf("Opening %d connections\n", nprocs);
 295         for (i=0;i<nprocs;i++) {
 296                 state[i].mem_ctx = talloc_new(state);
 297                 state[i].client_num = i;
 298                 state[i].ev = ev;
 299                 if (!torture_open_connection_ev(&cli, i, ev)) {
 300                         return False;
 301                 }
 302                 talloc_steal(mem_ctx, state);
 303                 state[i].tree = cli->tree;
 304                 state[i].dest_host = talloc_strdup(state[i].mem_ctx,
 305                                                    cli->tree->session->transport->socket->hostname);
 306                 state[i].dest_port = cli->tree->session->transport->socket->port;
 307                 state[i].called_name  = talloc_strdup(state[i].mem_ctx,
 308                                                       cli->tree->session->transport->called.name);
 309                 state[i].service_type = talloc_strdup(state[i].mem_ctx,
 310                                                       cli->tree->device);
 311         }
 312
 313         num_connected = i;
 314
 315         if (!torture_setup_dir(cli, BASEDIR)) {
 316                 goto failed;
 317         }
 318
 319         for (i=0;i<nprocs;i++) {
 320                 state[i].fnum = smbcli_open(state[i].tree,
 321                                             FNAME,
 322                                             O_RDWR|O_CREAT, DENY_NONE);
 323                 if (state[i].fnum == -1) {
 324                         printf("Failed to open %s on connection %d\n", FNAME, i);
 325                         goto failed;
 326                 }
 327
 328                 state[i].stage = LOCK_INITIAL;
 329                 lock_send(&state[i]);
 330         }
 331
 332         tv = timeval_current();
 333
 334         if (progress) {
 335                 event_add_timed(ev, state, timeval_current_ofs(1, 0), report_rate, state);
 336         }
 337
 338         printf("Running for %d seconds\n", timelimit);
 339         while (timeval_elapsed(&tv) < timelimit) {
 340                 event_loop_once(ev);
 341
 342                 if (lock_failed) {
 343                         DEBUG(0,("locking failed\n"));
 344                         goto failed;
 345                 }
 346         }
 347
 348         printf("%.2f ops/second\n", total/timeval_elapsed(&tv));
 349         minops = state[0].count;
 350         for (i=0;i<nprocs;i++) {
 351                 printf("[%d] %u ops\n", i, state[i].count);
 352                 if (state[i].count < minops) minops = state[i].count;
 353         }
 354         if (minops < 0.5*total/nprocs) {
 355                 printf("Failed: unbalanced locking\n");
 356                 goto failed;
 357         }
 358
 359         for (i=0;i<nprocs;i++) {
 360                 talloc_free(state[i].req);
 361                 smb_raw_exit(state[i].tree->session);
 362         }
 363
 364         smbcli_deltree(state[0].tree, BASEDIR);
 365         talloc_free(mem_ctx);
 366         return ret;
 367
 368 failed:
 369         talloc_free(mem_ctx);
 370         return False;
 371 }