1 /* 2 * Copyright (c) 1983, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static char copyright[] = 39 "@(#) Copyright (c) 1983, 1989, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)nfsstat.c 8.2 (Berkeley) 3/31/95"; 46 #endif 47 static const char rcsid[] = 48 "$FreeBSD$"; 49 #endif /* not lint */ 50 51 #include <sys/param.h> 52 #include <sys/mount.h> 53 #include <sys/time.h> 54 #include <sys/sysctl.h> 55 #include <nfs/rpcv2.h> 56 #include <nfs/nfsproto.h> 57 #include <nfsclient/nfs.h> 58 #include <nfsserver/nfs.h> 59 #include <signal.h> 60 #include <fcntl.h> 61 #include <ctype.h> 62 #include <errno.h> 63 #include <kvm.h> 64 #include <limits.h> 65 #include <nlist.h> 66 #include <unistd.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <paths.h> 71 #include <err.h> 72 73 struct nlist nl[] = { 74 #define N_NFSSTAT 0 75 { "nfsstats" }, 76 #define N_NFSRVSTAT 1 77 { "nfsrvstats" }, 78 "", 79 }; 80 kvm_t *kd; 81 82 static int deadkernel = 0; 83 static int widemode = 0; 84 static int zflag = 0; 85 86 void intpr(int, int); 87 void printhdr(int, int); 88 void sidewaysintpr(u_int, int, int); 89 void usage(void); 90 char *sperc1(int, int); 91 char *sperc2(int, int); 92 93 #define DELTA(field) (nfsstats.field - lastst.field) 94 95 int 96 main(int argc, char **argv) 97 { 98 u_int interval; 99 int clientOnly = -1; 100 int serverOnly = -1; 101 int ch; 102 char *memf, *nlistf; 103 char errbuf[_POSIX2_LINE_MAX]; 104 105 interval = 0; 106 memf = nlistf = NULL; 107 while ((ch = getopt(argc, argv, "csWM:N:w:z")) != -1) 108 switch(ch) { 109 case 'M': 110 memf = optarg; 111 break; 112 case 'N': 113 nlistf = optarg; 114 break; 115 case 'W': 116 widemode = 1; 117 break; 118 case 'w': 119 interval = atoi(optarg); 120 break; 121 case 'c': 122 clientOnly = 1; 123 if (serverOnly < 0) 124 serverOnly = 0; 125 break; 126 case 's': 127 serverOnly = 1; 128 if (clientOnly < 0) 129 clientOnly = 0; 130 break; 131 case 'z': 132 zflag = 1; 133 break; 134 case '?': 135 default: 136 usage(); 137 } 138 argc -= optind; 139 argv += optind; 140 141 #define BACKWARD_COMPATIBILITY 142 #ifdef BACKWARD_COMPATIBILITY 143 if (*argv) { 144 interval = atoi(*argv); 145 if (*++argv) { 146 nlistf = *argv; 147 if (*++argv) 148 memf = *argv; 149 } 150 } 151 #endif 152 if (nlistf != NULL || memf != NULL) { 153 deadkernel = 1; 154 155 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, 156 errbuf)) == 0) { 157 errx(1, "kvm_openfiles: %s", errbuf); 158 } 159 if (kvm_nlist(kd, nl) != 0) { 160 errx(1, "kvm_nlist: can't get names"); 161 } 162 } 163 164 if (interval) 165 sidewaysintpr(interval, clientOnly, serverOnly); 166 else 167 intpr(clientOnly, serverOnly); 168 exit(0); 169 } 170 171 /* 172 * Read the nfs stats using sysctl(3) for live kernels, or kvm_read 173 * for dead ones. 174 */ 175 void 176 readstats(struct nfsstats **stp, struct nfsrvstats **srvstp, int zero) 177 { 178 union { 179 struct nfsstats client; 180 struct nfsrvstats server; 181 } zerostat; 182 size_t buflen; 183 184 if (deadkernel) { 185 if (*stp != NULL && kvm_read(kd, (u_long)nl[N_NFSSTAT].n_value, 186 *stp, sizeof(struct nfsstats)) < 0) { 187 *stp = NULL; 188 } 189 if (*srvstp != NULL && kvm_read(kd, 190 (u_long)nl[N_NFSRVSTAT].n_value, *srvstp, 191 sizeof(struct nfsrvstats)) < 0) { 192 *srvstp = NULL; 193 } 194 } else { 195 if (zero) 196 bzero(&zerostat, sizeof(zerostat)); 197 buflen = sizeof(struct nfsstats); 198 if (*stp != NULL && sysctlbyname("vfs.nfs.nfsstats", *stp, 199 &buflen, zero ? &zerostat : NULL, zero ? buflen : 0) < 0) { 200 if (errno != ENOENT) 201 err(1, "sysctl: vfs.nfs.nfsstats"); 202 *stp = NULL; 203 } 204 buflen = sizeof(struct nfsrvstats); 205 if (*srvstp != NULL && sysctlbyname("vfs.nfsrv.nfsrvstats", 206 *srvstp, &buflen, zero ? &zerostat : NULL, 207 zero ? buflen : 0) < 0) { 208 if (errno != ENOENT) 209 err(1, "sysctl: vfs.nfsrv.nfsrvstats"); 210 *srvstp = NULL; 211 } 212 } 213 } 214 215 /* 216 * Print a description of the nfs stats. 217 */ 218 void 219 intpr(int clientOnly, int serverOnly) 220 { 221 struct nfsstats nfsstats, *nfsstatsp; 222 struct nfsrvstats nfsrvstats, *nfsrvstatsp; 223 224 /* 225 * Only read the stats we are going to display to avoid zeroing 226 * stats the user didn't request. 227 */ 228 if (clientOnly) 229 nfsstatsp = &nfsstats; 230 else 231 nfsstatsp = NULL; 232 if (serverOnly) 233 nfsrvstatsp = &nfsrvstats; 234 else 235 nfsrvstatsp = NULL; 236 237 readstats(&nfsstatsp, &nfsrvstatsp, zflag); 238 239 if (clientOnly && !nfsstatsp) { 240 printf("Client not present!\n"); 241 clientOnly = 0; 242 } 243 if (clientOnly) { 244 printf("Client Info:\n"); 245 printf("Rpc Counts:\n"); 246 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 247 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 248 "Write", "Create", "Remove"); 249 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 250 nfsstats.rpccnt[NFSPROC_GETATTR], 251 nfsstats.rpccnt[NFSPROC_SETATTR], 252 nfsstats.rpccnt[NFSPROC_LOOKUP], 253 nfsstats.rpccnt[NFSPROC_READLINK], 254 nfsstats.rpccnt[NFSPROC_READ], 255 nfsstats.rpccnt[NFSPROC_WRITE], 256 nfsstats.rpccnt[NFSPROC_CREATE], 257 nfsstats.rpccnt[NFSPROC_REMOVE]); 258 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 259 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 260 "Readdir", "RdirPlus", "Access"); 261 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 262 nfsstats.rpccnt[NFSPROC_RENAME], 263 nfsstats.rpccnt[NFSPROC_LINK], 264 nfsstats.rpccnt[NFSPROC_SYMLINK], 265 nfsstats.rpccnt[NFSPROC_MKDIR], 266 nfsstats.rpccnt[NFSPROC_RMDIR], 267 nfsstats.rpccnt[NFSPROC_READDIR], 268 nfsstats.rpccnt[NFSPROC_READDIRPLUS], 269 nfsstats.rpccnt[NFSPROC_ACCESS]); 270 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 271 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); 272 printf("%9d %9d %9d %9d %9d\n", 273 nfsstats.rpccnt[NFSPROC_MKNOD], 274 nfsstats.rpccnt[NFSPROC_FSSTAT], 275 nfsstats.rpccnt[NFSPROC_FSINFO], 276 nfsstats.rpccnt[NFSPROC_PATHCONF], 277 nfsstats.rpccnt[NFSPROC_COMMIT]); 278 printf("Rpc Info:\n"); 279 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 280 "TimedOut", "Invalid", "X Replies", "Retries", 281 "Requests"); 282 printf("%9d %9d %9d %9d %9d\n", 283 nfsstats.rpctimeouts, 284 nfsstats.rpcinvalid, 285 nfsstats.rpcunexpected, 286 nfsstats.rpcretries, 287 nfsstats.rpcrequests); 288 printf("Cache Info:\n"); 289 printf("%9.9s %9.9s %9.9s %9.9s", 290 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 291 printf(" %9.9s %9.9s %9.9s %9.9s\n", 292 "BioR Hits", "Misses", "BioW Hits", "Misses"); 293 printf("%9d %9d %9d %9d", 294 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 295 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 296 printf(" %9d %9d %9d %9d\n", 297 nfsstats.biocache_reads-nfsstats.read_bios, 298 nfsstats.read_bios, 299 nfsstats.biocache_writes-nfsstats.write_bios, 300 nfsstats.write_bios); 301 printf("%9.9s %9.9s %9.9s %9.9s", 302 "BioRLHits", "Misses", "BioD Hits", "Misses"); 303 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 304 printf("%9d %9d %9d %9d", 305 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 306 nfsstats.readlink_bios, 307 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 308 nfsstats.readdir_bios); 309 printf(" %9d %9d\n", 310 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 311 } 312 if (serverOnly && !nfsrvstatsp) { 313 printf("Server not present!\n"); 314 serverOnly = 0; 315 } 316 if (serverOnly) { 317 printf("\nServer Info:\n"); 318 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 319 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 320 "Write", "Create", "Remove"); 321 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 322 nfsrvstats.srvrpccnt[NFSPROC_GETATTR], 323 nfsrvstats.srvrpccnt[NFSPROC_SETATTR], 324 nfsrvstats.srvrpccnt[NFSPROC_LOOKUP], 325 nfsrvstats.srvrpccnt[NFSPROC_READLINK], 326 nfsrvstats.srvrpccnt[NFSPROC_READ], 327 nfsrvstats.srvrpccnt[NFSPROC_WRITE], 328 nfsrvstats.srvrpccnt[NFSPROC_CREATE], 329 nfsrvstats.srvrpccnt[NFSPROC_REMOVE]); 330 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 331 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 332 "Readdir", "RdirPlus", "Access"); 333 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 334 nfsrvstats.srvrpccnt[NFSPROC_RENAME], 335 nfsrvstats.srvrpccnt[NFSPROC_LINK], 336 nfsrvstats.srvrpccnt[NFSPROC_SYMLINK], 337 nfsrvstats.srvrpccnt[NFSPROC_MKDIR], 338 nfsrvstats.srvrpccnt[NFSPROC_RMDIR], 339 nfsrvstats.srvrpccnt[NFSPROC_READDIR], 340 nfsrvstats.srvrpccnt[NFSPROC_READDIRPLUS], 341 nfsrvstats.srvrpccnt[NFSPROC_ACCESS]); 342 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 343 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); 344 printf("%9d %9d %9d %9d %9d\n", 345 nfsrvstats.srvrpccnt[NFSPROC_MKNOD], 346 nfsrvstats.srvrpccnt[NFSPROC_FSSTAT], 347 nfsrvstats.srvrpccnt[NFSPROC_FSINFO], 348 nfsrvstats.srvrpccnt[NFSPROC_PATHCONF], 349 nfsrvstats.srvrpccnt[NFSPROC_COMMIT]); 350 printf("Server Ret-Failed\n"); 351 printf("%17d\n", nfsrvstats.srvrpc_errs); 352 printf("Server Faults\n"); 353 printf("%13d\n", nfsrvstats.srv_errs); 354 printf("Server Cache Stats:\n"); 355 printf("%9.9s %9.9s %9.9s %9.9s\n", 356 "Inprog", "Idem", "Non-idem", "Misses"); 357 printf("%9d %9d %9d %9d\n", 358 nfsrvstats.srvcache_inproghits, 359 nfsrvstats.srvcache_idemdonehits, 360 nfsrvstats.srvcache_nonidemdonehits, 361 nfsrvstats.srvcache_misses); 362 printf("Server Write Gathering:\n"); 363 printf("%9.9s %9.9s %9.9s\n", 364 "WriteOps", "WriteRPC", "Opsaved"); 365 printf("%9d %9d %9d\n", 366 nfsrvstats.srvvop_writes, 367 nfsrvstats.srvrpccnt[NFSPROC_WRITE], 368 nfsrvstats.srvrpccnt[NFSPROC_WRITE] - 369 nfsrvstats.srvvop_writes); 370 } 371 } 372 373 u_char signalled; /* set if alarm goes off "early" */ 374 375 /* 376 * Print a running summary of nfs statistics. 377 * Repeat display every interval seconds, showing statistics 378 * collected over that interval. Assumes that interval is non-zero. 379 * First line printed at top of screen is always cumulative. 380 */ 381 void 382 sidewaysintpr(u_int interval, int clientOnly, int serverOnly) 383 { 384 struct nfsstats nfsstats, lastst, *nfsstatsp; 385 struct nfsrvstats nfsrvstats, lastsrvst, *nfsrvstatsp; 386 int hdrcnt = 1; 387 388 nfsstatsp = &lastst; 389 nfsrvstatsp = &lastsrvst; 390 readstats(&nfsstatsp, &nfsrvstatsp, 0); 391 if (clientOnly && !nfsstatsp) { 392 printf("Client not present!\n"); 393 clientOnly = 0; 394 } 395 if (serverOnly && !nfsrvstatsp) { 396 printf("Server not present!\n"); 397 serverOnly = 0; 398 } 399 sleep(interval); 400 401 for (;;) { 402 nfsstatsp = &nfsstats; 403 nfsrvstatsp = &nfsrvstats; 404 readstats(&nfsstatsp, &nfsrvstatsp, 0); 405 406 if (--hdrcnt == 0) { 407 printhdr(clientOnly, serverOnly); 408 if (clientOnly && serverOnly) 409 hdrcnt = 10; 410 else 411 hdrcnt = 20; 412 } 413 if (clientOnly) { 414 printf("%s %6d %6d %6d %6d %6d %6d %6d %6d", 415 ((clientOnly && serverOnly) ? "Client:" : ""), 416 DELTA(attrcache_hits) + DELTA(attrcache_misses), 417 DELTA(lookupcache_hits) + DELTA(lookupcache_misses), 418 DELTA(biocache_readlinks), 419 DELTA(biocache_reads), 420 DELTA(biocache_writes), 421 nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME], 422 DELTA(accesscache_hits) + DELTA(accesscache_misses), 423 DELTA(biocache_readdirs) 424 ); 425 if (widemode) { 426 printf(" %s %s %s %s %s %s", 427 sperc1(DELTA(attrcache_hits), 428 DELTA(attrcache_misses)), 429 sperc1(DELTA(lookupcache_hits), 430 DELTA(lookupcache_misses)), 431 sperc2(DELTA(biocache_reads), 432 DELTA(read_bios)), 433 sperc2(DELTA(biocache_writes), 434 DELTA(write_bios)), 435 sperc1(DELTA(accesscache_hits), 436 DELTA(accesscache_misses)), 437 sperc2(DELTA(biocache_readdirs), 438 DELTA(readdir_bios)) 439 ); 440 } 441 printf("\n"); 442 lastst = nfsstats; 443 } 444 if (serverOnly) { 445 printf("%s %6d %6d %6d %6d %6d %6d %6d %6d", 446 ((clientOnly && serverOnly) ? "Server:" : ""), 447 nfsrvstats.srvrpccnt[NFSPROC_GETATTR]-lastsrvst.srvrpccnt[NFSPROC_GETATTR], 448 nfsrvstats.srvrpccnt[NFSPROC_LOOKUP]-lastsrvst.srvrpccnt[NFSPROC_LOOKUP], 449 nfsrvstats.srvrpccnt[NFSPROC_READLINK]-lastsrvst.srvrpccnt[NFSPROC_READLINK], 450 nfsrvstats.srvrpccnt[NFSPROC_READ]-lastsrvst.srvrpccnt[NFSPROC_READ], 451 nfsrvstats.srvrpccnt[NFSPROC_WRITE]-lastsrvst.srvrpccnt[NFSPROC_WRITE], 452 nfsrvstats.srvrpccnt[NFSPROC_RENAME]-lastsrvst.srvrpccnt[NFSPROC_RENAME], 453 nfsrvstats.srvrpccnt[NFSPROC_ACCESS]-lastsrvst.srvrpccnt[NFSPROC_ACCESS], 454 (nfsrvstats.srvrpccnt[NFSPROC_READDIR]-lastsrvst.srvrpccnt[NFSPROC_READDIR]) 455 +(nfsrvstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastsrvst.srvrpccnt[NFSPROC_READDIRPLUS])); 456 printf("\n"); 457 lastsrvst = nfsrvstats; 458 } 459 fflush(stdout); 460 sleep(interval); 461 } 462 /*NOTREACHED*/ 463 } 464 465 void 466 printhdr(int clientOnly, int serverOnly) 467 { 468 printf("%s%6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s", 469 ((serverOnly && clientOnly) ? " " : " "), 470 "GtAttr", "Lookup", "Rdlink", "Read", "Write", "Rename", 471 "Access", "Rddir"); 472 if (widemode && clientOnly) { 473 printf(" Attr Lkup BioR BioW Accs BioD"); 474 } 475 printf("\n"); 476 fflush(stdout); 477 } 478 479 void 480 usage(void) 481 { 482 (void)fprintf(stderr, 483 "usage: nfsstat [-cszW] [-M core] [-N system] [-w interval]\n"); 484 exit(1); 485 } 486 487 static char SPBuf[64][8]; 488 static int SPIndex; 489 490 char * 491 sperc1(int hits, int misses) 492 { 493 char *p = SPBuf[SPIndex]; 494 495 if (hits + misses) { 496 sprintf(p, "%3d%%", 497 (int)(char)((quad_t)hits * 100 / (hits + misses))); 498 } else { 499 sprintf(p, " -"); 500 } 501 SPIndex = (SPIndex + 1) & 63; 502 return(p); 503 } 504 505 char * 506 sperc2(int ttl, int misses) 507 { 508 char *p = SPBuf[SPIndex]; 509 510 if (ttl) { 511 sprintf(p, "%3d%%", 512 (int)(char)((quad_t)(ttl - misses) * 100 / ttl)); 513 } else { 514 sprintf(p, " -"); 515 } 516 SPIndex = (SPIndex + 1) & 63; 517 return(p); 518 } 519 520