nfsstat.c revision 1.7
1 /* $NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej 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 #ifndef lint 40 static char copyright[] = 41 "@(#) 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 static char *rcsid = "$NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $"; 50 #endif 51 #endif /* not lint */ 52 53 #include <sys/param.h> 54 #include <sys/mount.h> 55 #include <sys/sysctl.h> 56 #include <nfs/rpcv2.h> 57 #include <nfs/nfsproto.h> 58 #include <nfs/nfs.h> 59 #include <signal.h> 60 #include <fcntl.h> 61 #include <ctype.h> 62 #include <errno.h> 63 #include <kvm.h> 64 #include <nlist.h> 65 #include <unistd.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <paths.h> 70 #include <err.h> 71 72 struct nlist nl[] = { 73 #define N_NFSSTAT 0 74 { "_nfsstats" }, 75 "", 76 }; 77 kvm_t *kd; 78 79 void intpr(), printhdr(), sidewaysintpr(), usage(); 80 81 main(argc, argv) 82 int argc; 83 char **argv; 84 { 85 extern int optind; 86 extern char *optarg; 87 u_int interval; 88 int ch; 89 char *memf, *nlistf; 90 char errbuf[80]; 91 92 interval = 0; 93 memf = nlistf = NULL; 94 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 95 switch(ch) { 96 case 'M': 97 memf = optarg; 98 break; 99 case 'N': 100 nlistf = optarg; 101 break; 102 case 'w': 103 interval = atoi(optarg); 104 break; 105 case '?': 106 default: 107 usage(); 108 } 109 argc -= optind; 110 argv += optind; 111 112 #define BACKWARD_COMPATIBILITY 113 #ifdef BACKWARD_COMPATIBILITY 114 if (*argv) { 115 interval = atoi(*argv); 116 if (*++argv) { 117 nlistf = *argv; 118 if (*++argv) 119 memf = *argv; 120 } 121 } 122 #endif 123 /* 124 * Discard setgid privileges if not the running kernel so that bad 125 * guys can't print interesting stuff from kernel memory. 126 */ 127 if (nlistf != NULL || memf != NULL) 128 setgid(getgid()); 129 130 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) { 131 fprintf(stderr, "nfsstat: kvm_openfiles: %s\n", errbuf); 132 exit(1); 133 } 134 if (kvm_nlist(kd, nl) != 0) { 135 fprintf(stderr, "nfsstat: kvm_nlist: can't get names\n"); 136 exit(1); 137 } 138 139 if (interval) 140 sidewaysintpr(interval, nl[N_NFSSTAT].n_value); 141 else 142 intpr(nl[N_NFSSTAT].n_value); 143 exit(0); 144 } 145 146 /* 147 * Print a description of the nfs stats. 148 */ 149 void 150 intpr(nfsstataddr) 151 u_long nfsstataddr; 152 { 153 struct nfsstats nfsstats; 154 155 if (kvm_read(kd, (u_long)nfsstataddr, (char *)&nfsstats, sizeof(struct nfsstats)) < 0) { 156 fprintf(stderr, "nfsstat: kvm_read failed\n"); 157 exit(1); 158 } 159 printf("Client Info:\n"); 160 printf("Rpc Counts:\n"); 161 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 162 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 163 "Write", "Create", "Remove"); 164 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 165 nfsstats.rpccnt[NFSPROC_GETATTR], 166 nfsstats.rpccnt[NFSPROC_SETATTR], 167 nfsstats.rpccnt[NFSPROC_LOOKUP], 168 nfsstats.rpccnt[NFSPROC_READLINK], 169 nfsstats.rpccnt[NFSPROC_READ], 170 nfsstats.rpccnt[NFSPROC_WRITE], 171 nfsstats.rpccnt[NFSPROC_CREATE], 172 nfsstats.rpccnt[NFSPROC_REMOVE]); 173 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 174 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 175 "Readdir", "RdirPlus", "Access"); 176 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 177 nfsstats.rpccnt[NFSPROC_RENAME], 178 nfsstats.rpccnt[NFSPROC_LINK], 179 nfsstats.rpccnt[NFSPROC_SYMLINK], 180 nfsstats.rpccnt[NFSPROC_MKDIR], 181 nfsstats.rpccnt[NFSPROC_RMDIR], 182 nfsstats.rpccnt[NFSPROC_READDIR], 183 nfsstats.rpccnt[NFSPROC_READDIRPLUS], 184 nfsstats.rpccnt[NFSPROC_ACCESS]); 185 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 186 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 187 "GLease", "Vacate", "Evict"); 188 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 189 nfsstats.rpccnt[NFSPROC_MKNOD], 190 nfsstats.rpccnt[NFSPROC_FSSTAT], 191 nfsstats.rpccnt[NFSPROC_FSINFO], 192 nfsstats.rpccnt[NFSPROC_PATHCONF], 193 nfsstats.rpccnt[NFSPROC_COMMIT], 194 nfsstats.rpccnt[NQNFSPROC_GETLEASE], 195 nfsstats.rpccnt[NQNFSPROC_VACATED], 196 nfsstats.rpccnt[NQNFSPROC_EVICTED]); 197 printf("Rpc Info:\n"); 198 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 199 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 200 printf("%9d %9d %9d %9d %9d\n", 201 nfsstats.rpctimeouts, 202 nfsstats.rpcinvalid, 203 nfsstats.rpcunexpected, 204 nfsstats.rpcretries, 205 nfsstats.rpcrequests); 206 printf("Cache Info:\n"); 207 printf("%9.9s %9.9s %9.9s %9.9s", 208 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 209 printf(" %9.9s %9.9s %9.9s %9.9s\n", 210 "BioR Hits", "Misses", "BioW Hits", "Misses"); 211 printf("%9d %9d %9d %9d", 212 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 213 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 214 printf(" %9d %9d %9d %9d\n", 215 nfsstats.biocache_reads-nfsstats.read_bios, 216 nfsstats.read_bios, 217 nfsstats.biocache_writes-nfsstats.write_bios, 218 nfsstats.write_bios); 219 printf("%9.9s %9.9s %9.9s %9.9s", 220 "BioRLHits", "Misses", "BioD Hits", "Misses"); 221 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 222 printf("%9d %9d %9d %9d", 223 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 224 nfsstats.readlink_bios, 225 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 226 nfsstats.readdir_bios); 227 printf(" %9d %9d\n", 228 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 229 printf("\nServer Info:\n"); 230 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 231 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 232 "Write", "Create", "Remove"); 233 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 234 nfsstats.srvrpccnt[NFSPROC_GETATTR], 235 nfsstats.srvrpccnt[NFSPROC_SETATTR], 236 nfsstats.srvrpccnt[NFSPROC_LOOKUP], 237 nfsstats.srvrpccnt[NFSPROC_READLINK], 238 nfsstats.srvrpccnt[NFSPROC_READ], 239 nfsstats.srvrpccnt[NFSPROC_WRITE], 240 nfsstats.srvrpccnt[NFSPROC_CREATE], 241 nfsstats.srvrpccnt[NFSPROC_REMOVE]); 242 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 243 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 244 "Readdir", "RdirPlus", "Access"); 245 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 246 nfsstats.srvrpccnt[NFSPROC_RENAME], 247 nfsstats.srvrpccnt[NFSPROC_LINK], 248 nfsstats.srvrpccnt[NFSPROC_SYMLINK], 249 nfsstats.srvrpccnt[NFSPROC_MKDIR], 250 nfsstats.srvrpccnt[NFSPROC_RMDIR], 251 nfsstats.srvrpccnt[NFSPROC_READDIR], 252 nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], 253 nfsstats.srvrpccnt[NFSPROC_ACCESS]); 254 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 255 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 256 "GLease", "Vacate", "Evict"); 257 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 258 nfsstats.srvrpccnt[NFSPROC_MKNOD], 259 nfsstats.srvrpccnt[NFSPROC_FSSTAT], 260 nfsstats.srvrpccnt[NFSPROC_FSINFO], 261 nfsstats.srvrpccnt[NFSPROC_PATHCONF], 262 nfsstats.srvrpccnt[NFSPROC_COMMIT], 263 nfsstats.srvrpccnt[NQNFSPROC_GETLEASE], 264 nfsstats.srvrpccnt[NQNFSPROC_VACATED], 265 nfsstats.srvrpccnt[NQNFSPROC_EVICTED]); 266 printf("Server Ret-Failed\n"); 267 printf("%17d\n", nfsstats.srvrpc_errs); 268 printf("Server Faults\n"); 269 printf("%13d\n", nfsstats.srv_errs); 270 printf("Server Cache Stats:\n"); 271 printf("%9.9s %9.9s %9.9s %9.9s\n", 272 "Inprog", "Idem", "Non-idem", "Misses"); 273 printf("%9d %9d %9d %9d\n", 274 nfsstats.srvcache_inproghits, 275 nfsstats.srvcache_idemdonehits, 276 nfsstats.srvcache_nonidemdonehits, 277 nfsstats.srvcache_misses); 278 printf("Server Lease Stats:\n"); 279 printf("%9.9s %9.9s %9.9s\n", 280 "Leases", "PeakL", "GLeases"); 281 printf("%9d %9d %9d\n", 282 nfsstats.srvnqnfs_leases, 283 nfsstats.srvnqnfs_maxleases, 284 nfsstats.srvnqnfs_getleases); 285 printf("Server Write Gathering:\n"); 286 printf("%9.9s %9.9s %9.9s\n", 287 "WriteOps", "WriteRPC", "Opsaved"); 288 printf("%9d %9d %9d\n", 289 nfsstats.srvvop_writes, 290 nfsstats.srvrpccnt[NFSPROC_WRITE], 291 nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); 292 } 293 294 u_char signalled; /* set if alarm goes off "early" */ 295 296 /* 297 * Print a running summary of nfs statistics. 298 * Repeat display every interval seconds, showing statistics 299 * collected over that interval. Assumes that interval is non-zero. 300 * First line printed at top of screen is always cumulative. 301 */ 302 void 303 sidewaysintpr(interval, off) 304 u_int interval; 305 u_long off; 306 { 307 struct nfsstats nfsstats, lastst; 308 int hdrcnt, oldmask; 309 void catchalarm(); 310 311 (void)signal(SIGALRM, catchalarm); 312 signalled = 0; 313 (void)alarm(interval); 314 bzero((caddr_t)&lastst, sizeof(lastst)); 315 316 for (hdrcnt = 1;;) { 317 if (!--hdrcnt) { 318 printhdr(); 319 hdrcnt = 20; 320 } 321 if (kvm_read(kd, off, (char *)&nfsstats, sizeof nfsstats) < 0) { 322 fprintf(stderr, "nfsstat: kvm_read failed\n"); 323 exit(1); 324 } 325 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 326 nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR], 327 nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP], 328 nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK], 329 nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ], 330 nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE], 331 nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME], 332 nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS], 333 (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR]) 334 +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS])); 335 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 336 nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR], 337 nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP], 338 nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK], 339 nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ], 340 nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE], 341 nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME], 342 nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS], 343 (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR]) 344 +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS])); 345 lastst = nfsstats; 346 fflush(stdout); 347 oldmask = sigblock(sigmask(SIGALRM)); 348 if (!signalled) 349 sigpause(0); 350 sigsetmask(oldmask); 351 signalled = 0; 352 (void)alarm(interval); 353 } 354 /*NOTREACHED*/ 355 } 356 357 void 358 printhdr() 359 { 360 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 361 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 362 "Access", "Readdir"); 363 fflush(stdout); 364 } 365 366 /* 367 * Called if an interval expires before sidewaysintpr has completed a loop. 368 * Sets a flag to not wait for the alarm. 369 */ 370 void 371 catchalarm() 372 { 373 signalled = 1; 374 } 375 376 void 377 usage() 378 { 379 (void)fprintf(stderr, 380 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 381 exit(1); 382 } 383
Indexes created Wed Sep 24 05:09:52 GMT 2025