1 /* $OpenBSD: nfsstat.c,v 1.11 2001/06/25 17:15:46 markus Exp $ */ 2 /* $NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Rick Macklem at The University of Guelph. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 */ 39 40 #ifndef lint 41 static char copyright[] = 42 "@(#) Copyright (c) 1983, 1989, 1993\n\ 43 The Regents of the University of California. All rights reserved.\n"; 44 #endif /* not lint */ 45 46 #ifndef lint 47 #if 0 48 static char sccsid[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93"; 49 static char *rcsid = "$NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $"; 50 #else 51 static char *rcsid = "$OpenBSD: nfsstat.c,v 1.11 2001/06/25 17:15:46 markus Exp $"; 52 #endif 53 #endif /* not lint */ 54 55 #include <sys/param.h> 56 #include <sys/mount.h> 57 #include <sys/sysctl.h> 58 #include <nfs/rpcv2.h> 59 #include <nfs/nfsproto.h> 60 #include <nfs/nfs.h> 61 #include <signal.h> 62 #include <fcntl.h> 63 #include <ctype.h> 64 #include <errno.h> 65 #include <kvm.h> 66 #include <nlist.h> 67 #include <unistd.h> 68 #include <stdio.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <limits.h> 72 #include <paths.h> 73 #include <err.h> 74 75 #define SHOW_SERVER 0x01 76 #define SHOW_CLIENT 0x02 77 #define SHOW_ALL (SHOW_SERVER | SHOW_CLIENT) 78 79 struct nlist nl[] = { 80 #define N_NFSSTAT 0 81 { "_nfsstats" }, 82 { "" }, 83 }; 84 kvm_t *kd; 85 u_char signalled; /* set if alarm goes off "early" */ 86 int nfs_id; 87 88 void getnfsstats __P((struct nfsstats *)); 89 void printhdr __P((void)); 90 void intpr __P((u_int)); 91 void sidewaysintpr __P((u_int, u_int)); 92 void usage __P((void)); 93 94 int 95 main(argc, argv) 96 int argc; 97 char **argv; 98 { 99 extern int optind; 100 extern char *optarg; 101 char *p; 102 u_int interval; 103 u_int display = SHOW_ALL; 104 char *memf, *nlistf; 105 int ch; 106 107 interval = 0; 108 memf = nlistf = NULL; 109 while ((ch = getopt(argc, argv, "M:N:w:sc")) != -1) 110 switch(ch) { 111 case 'M': 112 memf = optarg; 113 break; 114 case 'N': 115 nlistf = optarg; 116 break; 117 case 'w': 118 interval = (u_int)strtol(optarg, &p, 0); 119 if (*optarg == '\0' || *p != '\0') 120 errx(1, "invalid interval"); 121 break; 122 case 's': 123 display = SHOW_SERVER; 124 break; 125 case 'c': 126 display = SHOW_CLIENT; 127 break; 128 case '?': 129 default: 130 usage(); 131 } 132 argc -= optind; 133 argv += optind; 134 135 #define BACKWARD_COMPATIBILITY 136 #ifdef BACKWARD_COMPATIBILITY 137 if (*argv) { 138 interval = atoi(*argv); 139 if (*++argv) { 140 nlistf = *argv; 141 if (*++argv) 142 memf = *argv; 143 } 144 } 145 #endif 146 if (nlistf || memf) { 147 char errbuf[_POSIX2_LINE_MAX]; 148 149 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) 150 errx(1, "nfsstat: %s", errbuf); 151 if (kvm_nlist(kd, nl) != 0) 152 errx(1, "kvm_nlist: can't get names"); 153 } else { 154 int mib[3]; 155 size_t len; 156 157 mib[0] = CTL_VFS; 158 mib[1] = VFS_GENERIC; 159 mib[2] = VFS_MAXTYPENUM; 160 len = sizeof(nfs_id); 161 if (sysctl(mib, 3, &nfs_id, &len, NULL, 0)) 162 err(1, "sysctl: VFS_MAXTYPENUM"); 163 164 while (nfs_id--) { 165 struct vfsconf vfsc; 166 167 mib[0] = CTL_VFS; 168 mib[1] = VFS_GENERIC; 169 mib[2] = VFS_CONF; 170 mib[3] = nfs_id; 171 172 len = sizeof(vfsc); 173 if (sysctl(mib, 4, &vfsc, &len, NULL, 0)) 174 continue; 175 176 if (!strcmp(vfsc.vfc_name, MOUNT_NFS)) 177 break; 178 } 179 180 if (nfs_id < 0) 181 errx(1, "cannot find nfs filesystem id"); 182 } 183 184 if (interval) 185 sidewaysintpr(interval, display); 186 else 187 intpr(display); 188 189 return 0; 190 } 191 192 void 193 getnfsstats(p) 194 struct nfsstats *p; 195 { 196 if (kd) { 197 if (kvm_read(kd, nl[N_NFSSTAT].n_value, p, sizeof(*p)) != sizeof(*p)) 198 errx(1, "kvm_read failed"); 199 } else { 200 int mib[3]; 201 size_t len = sizeof(*p); 202 203 mib[0] = CTL_VFS; 204 mib[1] = nfs_id; /* 2 */ 205 mib[2] = NFS_NFSSTATS; 206 207 if (sysctl(mib, 3, p, &len, NULL, 0)) 208 err(1, "sysctl"); 209 } 210 } 211 212 /* 213 * Print a description of the nfs stats. 214 */ 215 void 216 intpr(display) 217 u_int display; 218 { 219 struct nfsstats nfsstats; 220 221 getnfsstats(&nfsstats); 222 223 if (display & SHOW_CLIENT) { 224 printf("Client Info:\n"); 225 printf("Rpc Counts:\n"); 226 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 227 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 228 "Write", "Create", "Remove"); 229 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 230 nfsstats.rpccnt[NFSPROC_GETATTR], 231 nfsstats.rpccnt[NFSPROC_SETATTR], 232 nfsstats.rpccnt[NFSPROC_LOOKUP], 233 nfsstats.rpccnt[NFSPROC_READLINK], 234 nfsstats.rpccnt[NFSPROC_READ], 235 nfsstats.rpccnt[NFSPROC_WRITE], 236 nfsstats.rpccnt[NFSPROC_CREATE], 237 nfsstats.rpccnt[NFSPROC_REMOVE]); 238 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 239 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 240 "Readdir", "RdirPlus", "Access"); 241 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 242 nfsstats.rpccnt[NFSPROC_RENAME], 243 nfsstats.rpccnt[NFSPROC_LINK], 244 nfsstats.rpccnt[NFSPROC_SYMLINK], 245 nfsstats.rpccnt[NFSPROC_MKDIR], 246 nfsstats.rpccnt[NFSPROC_RMDIR], 247 nfsstats.rpccnt[NFSPROC_READDIR], 248 nfsstats.rpccnt[NFSPROC_READDIRPLUS], 249 nfsstats.rpccnt[NFSPROC_ACCESS]); 250 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 251 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); 252 printf("%9d %9d %9d %9d %9d\n", 253 nfsstats.rpccnt[NFSPROC_MKNOD], 254 nfsstats.rpccnt[NFSPROC_FSSTAT], 255 nfsstats.rpccnt[NFSPROC_FSINFO], 256 nfsstats.rpccnt[NFSPROC_PATHCONF], 257 nfsstats.rpccnt[NFSPROC_COMMIT]); 258 printf("Rpc Info:\n"); 259 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 260 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 261 printf("%9d %9d %9d %9d %9d\n", 262 nfsstats.rpctimeouts, 263 nfsstats.rpcinvalid, 264 nfsstats.rpcunexpected, 265 nfsstats.rpcretries, 266 nfsstats.rpcrequests); 267 printf("Cache Info:\n"); 268 printf("%9.9s %9.9s %9.9s %9.9s", 269 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 270 printf(" %9.9s %9.9s %9.9s %9.9s\n", 271 "BioR Hits", "Misses", "BioW Hits", "Misses"); 272 printf("%9d %9d %9d %9d", 273 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 274 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 275 printf(" %9d %9d %9d %9d\n", 276 nfsstats.biocache_reads-nfsstats.read_bios, 277 nfsstats.read_bios, 278 nfsstats.biocache_writes-nfsstats.write_bios, 279 nfsstats.write_bios); 280 printf("%9.9s %9.9s %9.9s %9.9s", 281 "BioRLHits", "Misses", "BioD Hits", "Misses"); 282 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 283 printf("%9d %9d %9d %9d", 284 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 285 nfsstats.readlink_bios, 286 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 287 nfsstats.readdir_bios); 288 printf(" %9d %9d\n", 289 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 290 } 291 if (display & SHOW_SERVER) { 292 printf("\nServer Info:\n"); 293 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 294 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 295 "Write", "Create", "Remove"); 296 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 297 nfsstats.srvrpccnt[NFSPROC_GETATTR], 298 nfsstats.srvrpccnt[NFSPROC_SETATTR], 299 nfsstats.srvrpccnt[NFSPROC_LOOKUP], 300 nfsstats.srvrpccnt[NFSPROC_READLINK], 301 nfsstats.srvrpccnt[NFSPROC_READ], 302 nfsstats.srvrpccnt[NFSPROC_WRITE], 303 nfsstats.srvrpccnt[NFSPROC_CREATE], 304 nfsstats.srvrpccnt[NFSPROC_REMOVE]); 305 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 306 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 307 "Readdir", "RdirPlus", "Access"); 308 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 309 nfsstats.srvrpccnt[NFSPROC_RENAME], 310 nfsstats.srvrpccnt[NFSPROC_LINK], 311 nfsstats.srvrpccnt[NFSPROC_SYMLINK], 312 nfsstats.srvrpccnt[NFSPROC_MKDIR], 313 nfsstats.srvrpccnt[NFSPROC_RMDIR], 314 nfsstats.srvrpccnt[NFSPROC_READDIR], 315 nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], 316 nfsstats.srvrpccnt[NFSPROC_ACCESS]); 317 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 318 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); 319 printf("%9d %9d %9d %9d %9d\n", 320 nfsstats.srvrpccnt[NFSPROC_MKNOD], 321 nfsstats.srvrpccnt[NFSPROC_FSSTAT], 322 nfsstats.srvrpccnt[NFSPROC_FSINFO], 323 nfsstats.srvrpccnt[NFSPROC_PATHCONF], 324 nfsstats.srvrpccnt[NFSPROC_COMMIT]); 325 printf("Server Ret-Failed\n"); 326 printf("%17d\n", nfsstats.srvrpc_errs); 327 printf("Server Faults\n"); 328 printf("%13d\n", nfsstats.srv_errs); 329 printf("Server Cache Stats:\n"); 330 printf("%9.9s %9.9s %9.9s %9.9s\n", 331 "Inprog", "Idem", "Non-idem", "Misses"); 332 printf("%9d %9d %9d %9d\n", 333 nfsstats.srvcache_inproghits, 334 nfsstats.srvcache_idemdonehits, 335 nfsstats.srvcache_nonidemdonehits, 336 nfsstats.srvcache_misses); 337 printf("Server Lease Stats:\n"); 338 printf("%9.9s %9.9s %9.9s\n", 339 "Leases", "PeakL", "GLeases"); 340 printf("%9d %9d %9d\n", 341 nfsstats.srvnqnfs_leases, 342 nfsstats.srvnqnfs_maxleases, 343 nfsstats.srvnqnfs_getleases); 344 printf("Server Write Gathering:\n"); 345 printf("%9.9s %9.9s %9.9s\n", 346 "WriteOps", "WriteRPC", "Opsaved"); 347 printf("%9d %9d %9d\n", 348 nfsstats.srvvop_writes, 349 nfsstats.srvrpccnt[NFSPROC_WRITE], 350 nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); 351 } 352 } 353 354 /* 355 * Print a running summary of nfs statistics. 356 * Repeat display every interval seconds, showing statistics 357 * collected over that interval. Assumes that interval is non-zero. 358 * First line printed at top of screen is always cumulative. 359 */ 360 void 361 sidewaysintpr(interval, display) 362 u_int interval; 363 u_int display; 364 { 365 struct nfsstats nfsstats, lastst; 366 int hdrcnt, oldmask; 367 void catchalarm(); 368 369 (void)signal(SIGALRM, catchalarm); 370 signalled = 0; 371 (void)alarm(interval); 372 bzero((caddr_t)&lastst, sizeof(lastst)); 373 374 for (hdrcnt = 1;;) { 375 if (!--hdrcnt) { 376 printhdr(); 377 hdrcnt = 20; 378 } 379 380 getnfsstats(&nfsstats); 381 382 if (display & SHOW_CLIENT) 383 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 384 nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR], 385 nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP], 386 nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK], 387 nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ], 388 nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE], 389 nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME], 390 nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS], 391 (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR]) 392 +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS])); 393 if (display & SHOW_SERVER) 394 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 395 nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR], 396 nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP], 397 nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK], 398 nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ], 399 nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE], 400 nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME], 401 nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS], 402 (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR]) 403 +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS])); 404 lastst = nfsstats; 405 fflush(stdout); 406 oldmask = sigblock(sigmask(SIGALRM)); 407 if (!signalled) 408 sigpause(0); 409 sigsetmask(oldmask); 410 signalled = 0; 411 (void)alarm(interval); 412 } 413 /*NOTREACHED*/ 414 } 415 416 void 417 printhdr() 418 { 419 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 420 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 421 "Access", "Readdir"); 422 fflush(stdout); 423 } 424 425 /* 426 * Called if an interval expires before sidewaysintpr has completed a loop. 427 * Sets a flag to not wait for the alarm. 428 */ 429 void 430 catchalarm() 431 { 432 signalled = 1; 433 } 434 435 void 436 usage() 437 { 438 extern char *__progname; 439 fprintf(stderr, 440 "usage: %s [-M core] [-N system] [-s] [-c] [-w interval]\n", 441 __progname); 442 exit(1); 443 } 444