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 CHECK_STATUS(status, correct) do { \
  36         if (!NT_STATUS_EQUAL(status, correct)) { \
  37                 printf("(%s) Incorrect status %s - should be %s\n", \
  38                        __location__, nt_errstr(status), nt_errstr(correct)); \
  39                 goto failed; \
  40         }} while (0)
  41
  42 #define BASEDIR "\\benchlock"
  43 #define FNAME BASEDIR "\\lock.dat"
  44
  45 static int nprocs;
  46 static int lock_failed;
  47
  48 struct benchlock_state {
  49         struct event_context *ev;
  50         struct smbcli_tree *tree;
  51         TALLOC_CTX *mem_ctx;
  52         int client_num;
  53         int fnum;
  54         int offset;
  55         int count;
  56         union smb_lock io;
  57         struct smb_lock_entry lock[2];
  58         struct smbcli_request *req;
  59         struct smb_composite_connect reconnect;
  60
  61         /* these are used for reconnections */
  62         int dest_port;
  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         state->io.lockx.in.file.fnum = state->fnum;
  76         state->io.lockx.in.ulock_cnt = 1;
  77         state->lock[0].pid = state->tree->session->pid;
  78         state->lock[1].pid = state->tree->session->pid;
  79         state->lock[0].offset = state->offset;
  80         state->lock[1].offset = (state->offset+1)%nprocs;
  81         state->req = smb_raw_lock_send(state->tree, &state->io);
  82         if (state->req == NULL) {
  83                 DEBUG(0,("Failed to setup lock\n"));
  84                 lock_failed++;
  85         }
  86         state->req->async.private = state;
  87         state->req->async.fn      = lock_completion;
  88         state->offset = (state->offset+1)%nprocs;
  89 }
  90
  91 static void reopen_connection(struct event_context *ev, struct timed_event *te,
  92                               struct timeval t, void *private_data);
  93
  94
  95 static void reopen_file(struct event_context *ev, struct timed_event *te,
  96                                       struct timeval t, void *private_data)
  97 {
  98         struct benchlock_state *state = (struct benchlock_state *)private_data;
  99
 100         /* reestablish our open file */
 101         state->fnum = smbcli_open(state->tree, FNAME, O_RDWR|O_CREAT, DENY_NONE);
 102         if (state->fnum == -1) {
 103                 printf("Failed to open %s on connection %d\n", FNAME, state->client_num);
 104                 exit(1);
 105         }
 106
 107         /* reestablish one lock, preparing for the async lock loop */
 108         state->lock[0].offset = state->offset;
 109         state->io.lockx.in.ulock_cnt = 0;
 110         state->io.lockx.in.file.fnum = state->fnum;
 111         state->req = smb_raw_lock_send(state->tree, &state->io);
 112         if (state->req == NULL) {
 113                 DEBUG(0,("Failed to setup lock\n"));
 114                 lock_failed++;
 115         }
 116         state->req->async.private = state;
 117         state->req->async.fn      = lock_completion;
 118 }
 119
 120 /*
 121   complete an async reconnect
 122  */
 123 static void reopen_connection_complete(struct composite_context *ctx)
 124 {
 125         struct benchlock_state *state = (struct benchlock_state *)ctx->async.private_data;
 126         NTSTATUS status;
 127         struct smb_composite_connect *io = &state->reconnect;
 128
 129         status = smb_composite_connect_recv(ctx, state->mem_ctx);
 130         if (!NT_STATUS_IS_OK(status)) {
 131                 event_add_timed(state->ev, state->mem_ctx,
 132                                 timeval_current_ofs(1,0),
 133                                 reopen_connection, state);
 134                 return;
 135         }
 136
 137         talloc_free(state->tree);
 138         state->tree = io->out.tree;
 139
 140         /* do the reopen as a separate event */
 141         event_add_timed(state->ev, state->mem_ctx, timeval_zero(), reopen_file, state);
 142 }
 143
 144
 145
 146 /*
 147   reopen a connection
 148  */
 149 static void reopen_connection(struct event_context *ev, struct timed_event *te,
 150                               struct timeval t, void *private_data)
 151 {
 152         struct benchlock_state *state = (struct benchlock_state *)private_data;
 153         struct composite_context *ctx;
 154         struct smb_composite_connect *io = &state->reconnect;
 155         char *host, *share;
 156
 157         if (!torture_get_conn_index(state->client_num, state->mem_ctx, &host, &share)) {
 158                 DEBUG(0,("Can't find host/share for reconnect?!\n"));
 159                 exit(1);
 160         }
 161
 162         io->in.dest_host    = state->dest_host;
 163         io->in.port         = state->dest_port;
 164         io->in.called_name  = state->called_name;
 165         io->in.service      = share;
 166         io->in.service_type = state->service_type;
 167         io->in.credentials  = cmdline_credentials;
 168         io->in.fallback_to_anonymous = False;
 169         io->in.workgroup    = lp_workgroup();
 170
 171         DEBUG(0,("reopening connection to //%s/%s\n", host, share));
 172
 173         /* kill off the remnants of the old connection */
 174         talloc_free(state->tree);
 175         state->tree = NULL;
 176
 177         ctx = smb_composite_connect_send(io, state->mem_ctx, state->ev);
 178         if (ctx == NULL) {
 179                 DEBUG(0,("Failed to setup async reconnect\n"));
 180                 exit(1);
 181         }
 182
 183         ctx->async.fn = reopen_connection_complete;
 184         ctx->async.private_data = state;
 185 }
 186
 187
 188 /*
 189   called when a lock completes
 190 */
 191 static void lock_completion(struct smbcli_request *req)
 192 {
 193         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
 194         NTSTATUS status = smbcli_request_simple_recv(req);
 195         state->req = NULL;
 196         if (!NT_STATUS_IS_OK(status)) {
 197                 if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
 198                         event_add_timed(state->ev, state->mem_ctx,
 199                                         timeval_current_ofs(1,0),
 200                                         reopen_connection, state);
 201                 } else {
 202                         DEBUG(0,("Lock failed - %s\n", nt_errstr(status)));
 203                         lock_failed++;
 204                 }
 205         } else {
 206                 state->count++;
 207                 lock_send(state);
 208         }
 209 }
 210
 211 /*
 212    benchmark locking calls
 213 */
 214 BOOL torture_bench_lock(struct torture_context *torture)
 215 {
 216         BOOL ret = True;
 217         TALLOC_CTX *mem_ctx = talloc_new(torture);
 218         int i;
 219         int timelimit = torture_setting_int(torture, "timelimit", 10);
 220         struct timeval tv;
 221         struct event_context *ev = event_context_find(mem_ctx);
 222         struct benchlock_state *state;
 223         int total = 0, loops=0, minops=0;
 224         NTSTATUS status;
 225         struct smbcli_state *cli;
 226
 227         nprocs = lp_parm_int(-1, "torture", "nprocs", 4);
 228
 229         state = talloc_zero_array(mem_ctx, struct benchlock_state, nprocs);
 230
 231         printf("Opening %d connections\n", nprocs);
 232         for (i=0;i<nprocs;i++) {
 233                 state[i].mem_ctx = talloc_new(state);
 234                 state[i].client_num = i;
 235                 state[i].ev = ev;
 236                 if (!torture_open_connection_ev(&cli, i, ev)) {
 237                         return False;
 238                 }
 239                 talloc_steal(mem_ctx, state);
 240                 state[i].tree = cli->tree;
 241                 state[i].dest_host = talloc_strdup(state[i].mem_ctx,
 242                                                    cli->tree->session->transport->socket->hostname);
 243                 state[i].dest_port = cli->tree->session->transport->socket->port;
 244                 state[i].called_name  = talloc_strdup(state[i].mem_ctx,
 245                                                       cli->tree->session->transport->called.name);
 246                 state[i].service_type = talloc_strdup(state[i].mem_ctx,
 247                                                       cli->tree->device);
 248         }
 249
 250         if (!torture_setup_dir(cli, BASEDIR)) {
 251                 goto failed;
 252         }
 253
 254         for (i=0;i<nprocs;i++) {
 255                 state[i].fnum = smbcli_open(state[i].tree,
 256                                             FNAME,
 257                                             O_RDWR|O_CREAT, DENY_NONE);
 258                 if (state[i].fnum == -1) {
 259                         printf("Failed to open %s on connection %d\n", FNAME, i);
 260                         goto failed;
 261                 }
 262
 263                 state[i].io.lockx.level = RAW_LOCK_LOCKX;
 264                 state[i].io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
 265                 state[i].io.lockx.in.timeout = 100000;
 266                 state[i].io.lockx.in.ulock_cnt = 0;
 267                 state[i].io.lockx.in.lock_cnt = 1;
 268                 state[i].lock[0].count = 1;
 269                 state[i].lock[1].count = 1;
 270                 state[i].io.lockx.in.locks = &state[i].lock[0];
 271
 272                 state[i].offset = i;
 273                 state[i].io.lockx.in.file.fnum = state[i].fnum;
 274                 state[i].lock[0].offset = state[i].offset;
 275                 state[i].lock[0].pid    = state[i].tree->session->pid;
 276                 status = smb_raw_lock(state[i].tree, &state[i].io);
 277                 CHECK_STATUS(status, NT_STATUS_OK);
 278         }
 279
 280         for (i=0;i<nprocs;i++) {
 281                 lock_send(&state[i]);
 282         }
 283
 284         tv = timeval_current();
 285
 286         printf("Running for %d seconds\n", timelimit);
 287         while (timeval_elapsed(&tv) < timelimit) {
 288                 event_loop_once(ev);
 289
 290                 if (lock_failed) {
 291                         DEBUG(0,("locking failed\n"));
 292                         goto failed;
 293                 }
 294
 295                 if (loops++ % 10 != 0) continue;
 296
 297                 total = 0;
 298                 for (i=0;i<nprocs;i++) {
 299                         total += state[i].count;
 300                 }
 301                 if (torture_setting_bool(torture, "progress", true)) {
 302                         printf("%.2f ops/second (remaining=%u)\r",
 303                                total/timeval_elapsed(&tv),
 304                                (unsigned)(timelimit - timeval_elapsed(&tv)));
 305                         fflush(stdout);
 306                 }
 307         }
 308
 309         printf("%.2f ops/second\n", total/timeval_elapsed(&tv));
 310         minops = state[0].count;
 311         for (i=0;i<nprocs;i++) {
 312                 printf("[%d] %u ops\n", i, state[i].count);
 313                 if (state[i].count < minops) minops = state[i].count;
 314         }
 315         if (minops < 0.5*total/nprocs) {
 316                 printf("Failed: unbalanced locking\n");
 317                 goto failed;
 318         }
 319
 320         for (i=0;i<nprocs;i++) {
 321                 talloc_free(state[i].req);
 322                 smb_raw_exit(state[i].tree->session);
 323         }
 324
 325         smbcli_deltree(state[0].tree, BASEDIR);
 326         talloc_free(mem_ctx);
 327         return ret;
 328
 329 failed:
 330         talloc_free(mem_ctx);
 331         return False;
 332 }