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 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
  33 #define CHECK_STATUS(status, correct) do { \
  34         if (!NT_STATUS_EQUAL(status, correct)) { \
  35                 printf("(%s) Incorrect status %s - should be %s\n", \
  36                        __location__, nt_errstr(status), nt_errstr(correct)); \
  37                 goto failed; \
  38         }} while (0)
  39
  40 #define BASEDIR "\\benchlock"
  41 #define FNAME BASEDIR "\\lock.dat"
  42
  43 static int nprocs;
  44 static int lock_failed;
  45
  46 struct benchlock_state {
  47         struct smbcli_state *cli;
  48         int fnum;
  49         int offset;
  50         int count;
  51         union smb_lock io;
  52         struct smb_lock_entry lock[2];
  53         struct smbcli_request *req;
  54 };
  55
  56 static void lock_completion(struct smbcli_request *);
  57
  58 /*
  59   send the next lock request
  60 */
  61 static void lock_send(struct benchlock_state *state)
  62 {
  63         state->io.lockx.in.file.fnum = state->fnum;
  64         state->io.lockx.in.ulock_cnt = 1;
  65         state->lock[0].pid = state->cli->session->pid;
  66         state->lock[1].pid = state->cli->session->pid;
  67         state->lock[0].offset = state->offset;
  68         state->lock[1].offset = (state->offset+1)%nprocs;
  69         state->req = smb_raw_lock_send(state->cli->tree, &state->io);
  70         if (state->req == NULL) {
  71                 DEBUG(0,("Failed to setup lock\n"));
  72                 lock_failed++;
  73         }
  74         state->req->async.private = state;
  75         state->req->async.fn      = lock_completion;
  76         state->offset = (state->offset+1)%nprocs;
  77 }
  78
  79 /*
  80   called when a lock completes
  81 */
  82 static void lock_completion(struct smbcli_request *req)
  83 {
  84         struct benchlock_state *state = (struct benchlock_state *)req->async.private;
  85         NTSTATUS status = smbcli_request_simple_recv(req);
  86         state->req = NULL;
  87         if (!NT_STATUS_IS_OK(status)) {
  88                 lock_failed++;
  89                 DEBUG(0,("Lock failed - %s\n", nt_errstr(status)));
  90         } else {
  91                 state->count++;
  92                 lock_send(state);
  93         }
  94 }
  95
  96 /*
  97    benchmark locking calls
  98 */
  99 BOOL torture_bench_lock(struct torture_context *torture)
 100 {
 101         BOOL ret = True;
 102         TALLOC_CTX *mem_ctx = talloc_new(torture);
 103         int i;
 104         int timelimit = torture_setting_int(torture, "timelimit", 10);
 105         struct timeval tv;
 106         struct event_context *ev = event_context_find(mem_ctx);
 107         struct benchlock_state *state;
 108         int total = 0, loops=0, minops=0;
 109         NTSTATUS status;
 110
 111         nprocs = lp_parm_int(-1, "torture", "nprocs", 4);
 112
 113         state = talloc_zero_array(mem_ctx, struct benchlock_state, nprocs);
 114
 115         printf("Opening %d connections\n", nprocs);
 116         for (i=0;i<nprocs;i++) {
 117                 if (!torture_open_connection_ev(&state[i].cli, i, ev)) {
 118                         return False;
 119                 }
 120                 talloc_steal(mem_ctx, state);
 121         }
 122
 123         if (!torture_setup_dir(state[0].cli, BASEDIR)) {
 124                 goto failed;
 125         }
 126
 127         for (i=0;i<nprocs;i++) {
 128                 state[i].fnum = smbcli_open(state[i].cli->tree,
 129                                             FNAME,
 130                                             O_RDWR|O_CREAT, DENY_NONE);
 131                 if (state[i].fnum == -1) {
 132                         printf("Failed to open %s on connection %d\n", FNAME, i);
 133                         goto failed;
 134                 }
 135
 136                 state[i].io.lockx.level = RAW_LOCK_LOCKX;
 137                 state[i].io.lockx.in.mode = LOCKING_ANDX_LARGE_FILES;
 138                 state[i].io.lockx.in.timeout = 100000;
 139                 state[i].io.lockx.in.ulock_cnt = 0;
 140                 state[i].io.lockx.in.lock_cnt = 1;
 141                 state[i].lock[0].count = 1;
 142                 state[i].lock[1].count = 1;
 143                 state[i].io.lockx.in.locks = &state[i].lock[0];
 144
 145                 state[i].offset = i;
 146                 state[i].io.lockx.in.file.fnum = state[i].fnum;
 147                 state[i].lock[0].offset = state[i].offset;
 148                 state[i].lock[0].pid    = state[i].cli->session->pid;
 149                 status = smb_raw_lock(state[i].cli->tree, &state[i].io);
 150                 CHECK_STATUS(status, NT_STATUS_OK);
 151         }
 152
 153         for (i=0;i<nprocs;i++) {
 154                 lock_send(&state[i]);
 155         }
 156
 157         tv = timeval_current();
 158
 159         printf("Running for %d seconds\n", timelimit);
 160         while (timeval_elapsed(&tv) < timelimit) {
 161                 event_loop_once(ev);
 162
 163                 if (lock_failed) {
 164                         DEBUG(0,("locking failed\n"));
 165                         goto failed;
 166                 }
 167
 168                 if (loops++ % 10 != 0) continue;
 169
 170                 total = 0;
 171                 for (i=0;i<nprocs;i++) {
 172                         total += state[i].count;
 173                 }
 174
 175                 if (torture_setting_bool(torture, "progress", true)) {
 176                         printf("%.2f ops/second\r", total/timeval_elapsed(&tv));
 177                         fflush(stdout);
 178                 }
 179         }
 180
 181         printf("%.2f ops/second\n", total/timeval_elapsed(&tv));
 182         minops = state[0].count;
 183         for (i=0;i<nprocs;i++) {
 184                 printf("[%d] %u ops\n", i, state[i].count);
 185                 if (state[i].count < minops) minops = state[i].count;
 186         }
 187         if (minops < 0.5*total/nprocs) {
 188                 printf("Failed: unbalanced locking\n");
 189                 goto failed;
 190         }
 191
 192         for (i=0;i<nprocs;i++) {
 193                 talloc_free(state[i].req);
 194                 smb_raw_exit(state[i].cli->session);
 195         }
 196
 197         smbcli_deltree(state[0].cli->tree, BASEDIR);
 198         talloc_free(mem_ctx);
 199         return ret;
 200
 201 failed:
 202         for (i=0;i<nprocs;i++) {
 203                 talloc_free(state[i].req);
 204                 smb_raw_exit(state[i].cli->session);
 205         }
 206         smbcli_deltree(state[0].cli->tree, BASEDIR);
 207         talloc_free(mem_ctx);
 208         return False;
 209 }