nfsstat.c revision 1.16
1 /* $NetBSD: nfsstat.c,v 1.16 2000/06/13 12:39:43 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #ifndef lint 41 __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1993\n\ 42 The Regents of the University of California. All rights reserved.\n"); 43 #endif /* not lint */ 44 45 #ifndef lint 46 #if 0 47 static char sccsid[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93"; 48 #else 49 __RCSID("$NetBSD: nfsstat.c,v 1.16 2000/06/13 12:39:43 simonb Exp $"); 50 #endif 51 #endif /* not lint */ 52 53 #include <sys/param.h> 54 #include <sys/mount.h> 55 #include <sys/sysctl.h> 56 57 #include <nfs/rpcv2.h> 58 #include <nfs/nfsproto.h> 59 #include <nfs/nfs.h> 60 61 #include <ctype.h> 62 #include <err.h> 63 #include <errno.h> 64 #include <fcntl.h> 65 #include <kvm.h> 66 #include <limits.h> 67 #include <nlist.h> 68 #include <paths.h> 69 #include <signal.h> 70 #include <stdlib.h> 71 #include <stdio.h> 72 #include <string.h> 73 #include <unistd.h> 74 75 struct nlist nl[] = { 76 #define N_NFSSTAT 0 77 { "_nfsstats" }, 78 { "" }, 79 }; 80 81 82 void catchalarm __P((int)); 83 void getstats __P((struct nfsstats *)); 84 void intpr __P((void)); 85 int main __P((int, char **)); 86 void printhdr __P((void)); 87 void sidewaysintpr __P((u_int)); 88 void usage __P((void)); 89 90 kvm_t *kd; 91 int printall, clientinfo, serverinfo; 92 u_long nfsstataddr; 93 94 int 95 main(argc, argv) 96 int argc; 97 char **argv; 98 { 99 u_int interval; 100 int ch; 101 char *memf, *nlistf; 102 char errbuf[_POSIX2_LINE_MAX]; 103 104 interval = 0; 105 memf = nlistf = NULL; 106 printall = 1; 107 while ((ch = getopt(argc, argv, "M:N:w:cs")) != -1) 108 switch(ch) { 109 case 'M': 110 memf = optarg; 111 break; 112 case 'N': 113 nlistf = optarg; 114 break; 115 case 'w': 116 interval = atoi(optarg); 117 break; 118 case 's': 119 serverinfo = 1; 120 printall = 0; 121 break; 122 case 'c': 123 clientinfo = 1; 124 printall = 0; 125 break; 126 case '?': 127 default: 128 usage(); 129 } 130 argc -= optind; 131 argv += optind; 132 133 #define BACKWARD_COMPATIBILITY 134 #ifdef BACKWARD_COMPATIBILITY 135 if (*argv) { 136 interval = atoi(*argv); 137 if (*++argv) { 138 nlistf = *argv; 139 if (*++argv) 140 memf = *argv; 141 } 142 } 143 #endif 144 if (nlistf || memf) { 145 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) 146 == 0) 147 errx(1, "kvm_openfiles: %s", errbuf); 148 149 if (kvm_nlist(kd, nl) != 0) 150 errx(1, "kvm_nlist: can't get names"); 151 nfsstataddr = nl[N_NFSSTAT].n_value; 152 } else { 153 kd = NULL; 154 } 155 156 if (interval) 157 sidewaysintpr(interval); 158 else 159 intpr(); 160 exit(0); 161 } 162 163 void 164 getstats(ns) 165 struct nfsstats *ns; 166 { 167 size_t size; 168 int mib[3]; 169 170 if (kd) { 171 if (kvm_read(kd, (u_long)nfsstataddr, ns, sizeof(*ns)) 172 != sizeof(*ns)) 173 errx(1, "kvm_read failed"); 174 } else { 175 mib[0] = CTL_VFS; 176 mib[1] = 2; /* XXX from CTL_VFS_NAMES in <sys/mount.h> */ 177 mib[2] = NFS_NFSSTATS; 178 179 size = sizeof(*ns); 180 if (sysctl(mib, 3, ns, &size, NULL, 0) == -1) 181 err(1, "sysctl(NFS_NFSSTATS) failed"); 182 } 183 } 184 185 /* 186 * Print a description of the nfs stats. 187 */ 188 void 189 intpr() 190 { 191 struct nfsstats nfsstats; 192 193 getstats(&nfsstats); 194 if (printall || clientinfo) { 195 printf("Client Info:\n"); 196 printf("Rpc Counts:\n"); 197 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 198 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 199 "Write", "Create", "Remove"); 200 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 201 nfsstats.rpccnt[NFSPROC_GETATTR], 202 nfsstats.rpccnt[NFSPROC_SETATTR], 203 nfsstats.rpccnt[NFSPROC_LOOKUP], 204 nfsstats.rpccnt[NFSPROC_READLINK], 205 nfsstats.rpccnt[NFSPROC_READ], 206 nfsstats.rpccnt[NFSPROC_WRITE], 207 nfsstats.rpccnt[NFSPROC_CREATE], 208 nfsstats.rpccnt[NFSPROC_REMOVE]); 209 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 210 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 211 "Readdir", "RdirPlus", "Access"); 212 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 213 nfsstats.rpccnt[NFSPROC_RENAME], 214 nfsstats.rpccnt[NFSPROC_LINK], 215 nfsstats.rpccnt[NFSPROC_SYMLINK], 216 nfsstats.rpccnt[NFSPROC_MKDIR], 217 nfsstats.rpccnt[NFSPROC_RMDIR], 218 nfsstats.rpccnt[NFSPROC_READDIR], 219 nfsstats.rpccnt[NFSPROC_READDIRPLUS], 220 nfsstats.rpccnt[NFSPROC_ACCESS]); 221 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 222 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 223 "GLease", "Vacate", "Evict"); 224 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 225 nfsstats.rpccnt[NFSPROC_MKNOD], 226 nfsstats.rpccnt[NFSPROC_FSSTAT], 227 nfsstats.rpccnt[NFSPROC_FSINFO], 228 nfsstats.rpccnt[NFSPROC_PATHCONF], 229 nfsstats.rpccnt[NFSPROC_COMMIT], 230 nfsstats.rpccnt[NQNFSPROC_GETLEASE], 231 nfsstats.rpccnt[NQNFSPROC_VACATED], 232 nfsstats.rpccnt[NQNFSPROC_EVICTED]); 233 printf("Rpc Info:\n"); 234 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 235 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 236 printf("%9d %9d %9d %9d %9d\n", 237 nfsstats.rpctimeouts, 238 nfsstats.rpcinvalid, 239 nfsstats.rpcunexpected, 240 nfsstats.rpcretries, 241 nfsstats.rpcrequests); 242 printf("Cache Info:\n"); 243 printf("%9.9s %9.9s %9.9s %9.9s", 244 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 245 printf(" %9.9s %9.9s %9.9s %9.9s\n", 246 "BioR Hits", "Misses", "BioW Hits", "Misses"); 247 printf("%9d %9d %9d %9d", 248 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 249 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 250 printf(" %9d %9d %9d %9d\n", 251 nfsstats.biocache_reads-nfsstats.read_bios, 252 nfsstats.read_bios, 253 nfsstats.biocache_writes-nfsstats.write_bios, 254 nfsstats.write_bios); 255 printf("%9.9s %9.9s %9.9s %9.9s", 256 "BioRLHits", "Misses", "BioD Hits", "Misses"); 257 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 258 printf("%9d %9d %9d %9d", 259 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 260 nfsstats.readlink_bios, 261 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 262 nfsstats.readdir_bios); 263 printf(" %9d %9d\n", 264 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 265 } 266 if (printall || (clientinfo && serverinfo)){ 267 printf("\n"); 268 } 269 if (printall || serverinfo){ 270 printf("Server Info:\n"); 271 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 272 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 273 "Write", "Create", "Remove"); 274 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 275 nfsstats.srvrpccnt[NFSPROC_GETATTR], 276 nfsstats.srvrpccnt[NFSPROC_SETATTR], 277 nfsstats.srvrpccnt[NFSPROC_LOOKUP], 278 nfsstats.srvrpccnt[NFSPROC_READLINK], 279 nfsstats.srvrpccnt[NFSPROC_READ], 280 nfsstats.srvrpccnt[NFSPROC_WRITE], 281 nfsstats.srvrpccnt[NFSPROC_CREATE], 282 nfsstats.srvrpccnt[NFSPROC_REMOVE]); 283 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 284 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 285 "Readdir", "RdirPlus", "Access"); 286 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 287 nfsstats.srvrpccnt[NFSPROC_RENAME], 288 nfsstats.srvrpccnt[NFSPROC_LINK], 289 nfsstats.srvrpccnt[NFSPROC_SYMLINK], 290 nfsstats.srvrpccnt[NFSPROC_MKDIR], 291 nfsstats.srvrpccnt[NFSPROC_RMDIR], 292 nfsstats.srvrpccnt[NFSPROC_READDIR], 293 nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], 294 nfsstats.srvrpccnt[NFSPROC_ACCESS]); 295 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 296 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 297 "GLease", "Vacate", "Evict"); 298 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 299 nfsstats.srvrpccnt[NFSPROC_MKNOD], 300 nfsstats.srvrpccnt[NFSPROC_FSSTAT], 301 nfsstats.srvrpccnt[NFSPROC_FSINFO], 302 nfsstats.srvrpccnt[NFSPROC_PATHCONF], 303 nfsstats.srvrpccnt[NFSPROC_COMMIT], 304 nfsstats.srvrpccnt[NQNFSPROC_GETLEASE], 305 nfsstats.srvrpccnt[NQNFSPROC_VACATED], 306 nfsstats.srvrpccnt[NQNFSPROC_EVICTED]); 307 printf("Server Ret-Failed\n"); 308 printf("%17d\n", nfsstats.srvrpc_errs); 309 printf("Server Faults\n"); 310 printf("%13d\n", nfsstats.srv_errs); 311 printf("Server Cache Stats:\n"); 312 printf("%9.9s %9.9s %9.9s %9.9s\n", 313 "Inprog", "Idem", "Non-idem", "Misses"); 314 printf("%9d %9d %9d %9d\n", 315 nfsstats.srvcache_inproghits, 316 nfsstats.srvcache_idemdonehits, 317 nfsstats.srvcache_nonidemdonehits, 318 nfsstats.srvcache_misses); 319 printf("Server Lease Stats:\n"); 320 printf("%9.9s %9.9s %9.9s\n", 321 "Leases", "PeakL", "GLeases"); 322 printf("%9d %9d %9d\n", 323 nfsstats.srvnqnfs_leases, 324 nfsstats.srvnqnfs_maxleases, 325 nfsstats.srvnqnfs_getleases); 326 printf("Server Write Gathering:\n"); 327 printf("%9.9s %9.9s %9.9s\n", 328 "WriteOps", "WriteRPC", "Opsaved"); 329 printf("%9d %9d %9d\n", 330 nfsstats.srvvop_writes, 331 nfsstats.srvrpccnt[NFSPROC_WRITE], 332 nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); 333 } 334 } 335 336 u_char signalled; /* set if alarm goes off "early" */ 337 338 /* 339 * Print a running summary of nfs statistics. 340 * Repeat display every interval seconds, showing statistics 341 * collected over that interval. Assumes that interval is non-zero. 342 * First line printed at top of screen is always cumulative. 343 */ 344 void 345 sidewaysintpr(interval) 346 u_int interval; 347 { 348 struct nfsstats nfsstats, lastst; 349 int hdrcnt, oldmask; 350 351 (void)signal(SIGALRM, catchalarm); 352 signalled = 0; 353 (void)alarm(interval); 354 memset((caddr_t)&lastst, 0, sizeof(lastst)); 355 356 for (hdrcnt = 1;;) { 357 if (!--hdrcnt) { 358 printhdr(); 359 hdrcnt = 20; 360 } 361 getstats(&nfsstats); 362 if (printall || clientinfo) 363 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 364 nfsstats.rpccnt[NFSPROC_GETATTR] - 365 lastst.rpccnt[NFSPROC_GETATTR], 366 nfsstats.rpccnt[NFSPROC_LOOKUP] - 367 lastst.rpccnt[NFSPROC_LOOKUP], 368 nfsstats.rpccnt[NFSPROC_READLINK] - 369 lastst.rpccnt[NFSPROC_READLINK], 370 nfsstats.rpccnt[NFSPROC_READ] - 371 lastst.rpccnt[NFSPROC_READ], 372 nfsstats.rpccnt[NFSPROC_WRITE] - 373 lastst.rpccnt[NFSPROC_WRITE], 374 nfsstats.rpccnt[NFSPROC_RENAME] - 375 lastst.rpccnt[NFSPROC_RENAME], 376 nfsstats.rpccnt[NFSPROC_ACCESS] - 377 lastst.rpccnt[NFSPROC_ACCESS], 378 (nfsstats.rpccnt[NFSPROC_READDIR] - 379 lastst.rpccnt[NFSPROC_READDIR]) + 380 (nfsstats.rpccnt[NFSPROC_READDIRPLUS] - 381 lastst.rpccnt[NFSPROC_READDIRPLUS])); 382 if (printall || serverinfo) 383 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 384 nfsstats.srvrpccnt[NFSPROC_GETATTR] - 385 lastst.srvrpccnt[NFSPROC_GETATTR], 386 nfsstats.srvrpccnt[NFSPROC_LOOKUP] - 387 lastst.srvrpccnt[NFSPROC_LOOKUP], 388 nfsstats.srvrpccnt[NFSPROC_READLINK] - 389 lastst.srvrpccnt[NFSPROC_READLINK], 390 nfsstats.srvrpccnt[NFSPROC_READ] - 391 lastst.srvrpccnt[NFSPROC_READ], 392 nfsstats.srvrpccnt[NFSPROC_WRITE] - 393 lastst.srvrpccnt[NFSPROC_WRITE], 394 nfsstats.srvrpccnt[NFSPROC_RENAME] - 395 lastst.srvrpccnt[NFSPROC_RENAME], 396 nfsstats.srvrpccnt[NFSPROC_ACCESS] - 397 lastst.srvrpccnt[NFSPROC_ACCESS], 398 (nfsstats.srvrpccnt[NFSPROC_READDIR] - 399 lastst.srvrpccnt[NFSPROC_READDIR]) + 400 (nfsstats.srvrpccnt[NFSPROC_READDIRPLUS] - 401 lastst.srvrpccnt[NFSPROC_READDIRPLUS])); 402 lastst = nfsstats; 403 fflush(stdout); 404 oldmask = sigblock(sigmask(SIGALRM)); 405 if (!signalled) 406 sigpause(0); 407 sigsetmask(oldmask); 408 signalled = 0; 409 (void)alarm(interval); 410 } 411 /*NOTREACHED*/ 412 } 413 414 void 415 printhdr() 416 { 417 418 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 419 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 420 "Access", "Readdir"); 421 fflush(stdout); 422 } 423 424 /* 425 * Called if an interval expires before sidewaysintpr has completed a loop. 426 * Sets a flag to not wait for the alarm. 427 */ 428 void 429 catchalarm(dummy) 430 int dummy; 431 { 432 433 signalled = 1; 434 } 435 436 void 437 usage() 438 { 439 440 (void)fprintf(stderr, 441 "usage: nfsstat [-cs] [-M core] [-N system] [-w interval]\n"); 442 exit(1); 443 } 444
Indexes created Thu Sep 25 16:09:42 GMT 2025