nfsstat.c revision 1.8
1 /* $NetBSD: nfsstat.c,v 1.8 1997/03/03 22:22:48 explorer 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 1.8 1997/03/03 22:22:48 explorer 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 kvm_t *kd; 81 82 void intpr(), printhdr(), sidewaysintpr(), usage(); 83 84 main(argc, argv) 85 int argc; 86 char **argv; 87 { 88 extern int optind; 89 extern char *optarg; 90 u_int interval; 91 int ch; 92 char *memf, *nlistf; 93 char errbuf[_POSIX2_LINE_MAX]; 94 95 interval = 0; 96 memf = nlistf = NULL; 97 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 98 switch(ch) { 99 case 'M': 100 memf = optarg; 101 break; 102 case 'N': 103 nlistf = optarg; 104 break; 105 case 'w': 106 interval = atoi(optarg); 107 break; 108 case '?': 109 default: 110 usage(); 111 } 112 argc -= optind; 113 argv += optind; 114 115 #define BACKWARD_COMPATIBILITY 116 #ifdef BACKWARD_COMPATIBILITY 117 if (*argv) { 118 interval = atoi(*argv); 119 if (*++argv) { 120 nlistf = *argv; 121 if (*++argv) 122 memf = *argv; 123 } 124 } 125 #endif 126 /* 127 * Discard setgid privileges if not the running kernel so that bad 128 * guys can't print interesting stuff from kernel memory. 129 */ 130 if (nlistf != NULL || memf != NULL) 131 setgid(getgid()); 132 133 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) { 134 fprintf(stderr, "nfsstat: kvm_openfiles: %s\n", errbuf); 135 exit(1); 136 } 137 if (kvm_nlist(kd, nl) != 0) { 138 fprintf(stderr, "nfsstat: kvm_nlist: can't get names\n"); 139 exit(1); 140 } 141 142 if (interval) 143 sidewaysintpr(interval, nl[N_NFSSTAT].n_value); 144 else 145 intpr(nl[N_NFSSTAT].n_value); 146 exit(0); 147 } 148 149 /* 150 * Print a description of the nfs stats. 151 */ 152 void 153 intpr(nfsstataddr) 154 u_long nfsstataddr; 155 { 156 struct nfsstats nfsstats; 157 158 if (kvm_read(kd, (u_long)nfsstataddr, (char *)&nfsstats, sizeof(struct nfsstats)) < 0) { 159 fprintf(stderr, "nfsstat: kvm_read failed\n"); 160 exit(1); 161 } 162 printf("Client Info:\n"); 163 printf("Rpc Counts:\n"); 164 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 165 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 166 "Write", "Create", "Remove"); 167 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 168 nfsstats.rpccnt[NFSPROC_GETATTR], 169 nfsstats.rpccnt[NFSPROC_SETATTR], 170 nfsstats.rpccnt[NFSPROC_LOOKUP], 171 nfsstats.rpccnt[NFSPROC_READLINK], 172 nfsstats.rpccnt[NFSPROC_READ], 173 nfsstats.rpccnt[NFSPROC_WRITE], 174 nfsstats.rpccnt[NFSPROC_CREATE], 175 nfsstats.rpccnt[NFSPROC_REMOVE]); 176 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 177 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 178 "Readdir", "RdirPlus", "Access"); 179 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 180 nfsstats.rpccnt[NFSPROC_RENAME], 181 nfsstats.rpccnt[NFSPROC_LINK], 182 nfsstats.rpccnt[NFSPROC_SYMLINK], 183 nfsstats.rpccnt[NFSPROC_MKDIR], 184 nfsstats.rpccnt[NFSPROC_RMDIR], 185 nfsstats.rpccnt[NFSPROC_READDIR], 186 nfsstats.rpccnt[NFSPROC_READDIRPLUS], 187 nfsstats.rpccnt[NFSPROC_ACCESS]); 188 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 189 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 190 "GLease", "Vacate", "Evict"); 191 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 192 nfsstats.rpccnt[NFSPROC_MKNOD], 193 nfsstats.rpccnt[NFSPROC_FSSTAT], 194 nfsstats.rpccnt[NFSPROC_FSINFO], 195 nfsstats.rpccnt[NFSPROC_PATHCONF], 196 nfsstats.rpccnt[NFSPROC_COMMIT], 197 nfsstats.rpccnt[NQNFSPROC_GETLEASE], 198 nfsstats.rpccnt[NQNFSPROC_VACATED], 199 nfsstats.rpccnt[NQNFSPROC_EVICTED]); 200 printf("Rpc Info:\n"); 201 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 202 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 203 printf("%9d %9d %9d %9d %9d\n", 204 nfsstats.rpctimeouts, 205 nfsstats.rpcinvalid, 206 nfsstats.rpcunexpected, 207 nfsstats.rpcretries, 208 nfsstats.rpcrequests); 209 printf("Cache Info:\n"); 210 printf("%9.9s %9.9s %9.9s %9.9s", 211 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 212 printf(" %9.9s %9.9s %9.9s %9.9s\n", 213 "BioR Hits", "Misses", "BioW Hits", "Misses"); 214 printf("%9d %9d %9d %9d", 215 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 216 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 217 printf(" %9d %9d %9d %9d\n", 218 nfsstats.biocache_reads-nfsstats.read_bios, 219 nfsstats.read_bios, 220 nfsstats.biocache_writes-nfsstats.write_bios, 221 nfsstats.write_bios); 222 printf("%9.9s %9.9s %9.9s %9.9s", 223 "BioRLHits", "Misses", "BioD Hits", "Misses"); 224 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 225 printf("%9d %9d %9d %9d", 226 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 227 nfsstats.readlink_bios, 228 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 229 nfsstats.readdir_bios); 230 printf(" %9d %9d\n", 231 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 232 printf("\nServer Info:\n"); 233 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 234 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 235 "Write", "Create", "Remove"); 236 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 237 nfsstats.srvrpccnt[NFSPROC_GETATTR], 238 nfsstats.srvrpccnt[NFSPROC_SETATTR], 239 nfsstats.srvrpccnt[NFSPROC_LOOKUP], 240 nfsstats.srvrpccnt[NFSPROC_READLINK], 241 nfsstats.srvrpccnt[NFSPROC_READ], 242 nfsstats.srvrpccnt[NFSPROC_WRITE], 243 nfsstats.srvrpccnt[NFSPROC_CREATE], 244 nfsstats.srvrpccnt[NFSPROC_REMOVE]); 245 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 246 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 247 "Readdir", "RdirPlus", "Access"); 248 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 249 nfsstats.srvrpccnt[NFSPROC_RENAME], 250 nfsstats.srvrpccnt[NFSPROC_LINK], 251 nfsstats.srvrpccnt[NFSPROC_SYMLINK], 252 nfsstats.srvrpccnt[NFSPROC_MKDIR], 253 nfsstats.srvrpccnt[NFSPROC_RMDIR], 254 nfsstats.srvrpccnt[NFSPROC_READDIR], 255 nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], 256 nfsstats.srvrpccnt[NFSPROC_ACCESS]); 257 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 258 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 259 "GLease", "Vacate", "Evict"); 260 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 261 nfsstats.srvrpccnt[NFSPROC_MKNOD], 262 nfsstats.srvrpccnt[NFSPROC_FSSTAT], 263 nfsstats.srvrpccnt[NFSPROC_FSINFO], 264 nfsstats.srvrpccnt[NFSPROC_PATHCONF], 265 nfsstats.srvrpccnt[NFSPROC_COMMIT], 266 nfsstats.srvrpccnt[NQNFSPROC_GETLEASE], 267 nfsstats.srvrpccnt[NQNFSPROC_VACATED], 268 nfsstats.srvrpccnt[NQNFSPROC_EVICTED]); 269 printf("Server Ret-Failed\n"); 270 printf("%17d\n", nfsstats.srvrpc_errs); 271 printf("Server Faults\n"); 272 printf("%13d\n", nfsstats.srv_errs); 273 printf("Server Cache Stats:\n"); 274 printf("%9.9s %9.9s %9.9s %9.9s\n", 275 "Inprog", "Idem", "Non-idem", "Misses"); 276 printf("%9d %9d %9d %9d\n", 277 nfsstats.srvcache_inproghits, 278 nfsstats.srvcache_idemdonehits, 279 nfsstats.srvcache_nonidemdonehits, 280 nfsstats.srvcache_misses); 281 printf("Server Lease Stats:\n"); 282 printf("%9.9s %9.9s %9.9s\n", 283 "Leases", "PeakL", "GLeases"); 284 printf("%9d %9d %9d\n", 285 nfsstats.srvnqnfs_leases, 286 nfsstats.srvnqnfs_maxleases, 287 nfsstats.srvnqnfs_getleases); 288 printf("Server Write Gathering:\n"); 289 printf("%9.9s %9.9s %9.9s\n", 290 "WriteOps", "WriteRPC", "Opsaved"); 291 printf("%9d %9d %9d\n", 292 nfsstats.srvvop_writes, 293 nfsstats.srvrpccnt[NFSPROC_WRITE], 294 nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); 295 } 296 297 u_char signalled; /* set if alarm goes off "early" */ 298 299 /* 300 * Print a running summary of nfs statistics. 301 * Repeat display every interval seconds, showing statistics 302 * collected over that interval. Assumes that interval is non-zero. 303 * First line printed at top of screen is always cumulative. 304 */ 305 void 306 sidewaysintpr(interval, off) 307 u_int interval; 308 u_long off; 309 { 310 struct nfsstats nfsstats, lastst; 311 int hdrcnt, oldmask; 312 void catchalarm(); 313 314 (void)signal(SIGALRM, catchalarm); 315 signalled = 0; 316 (void)alarm(interval); 317 bzero((caddr_t)&lastst, sizeof(lastst)); 318 319 for (hdrcnt = 1;;) { 320 if (!--hdrcnt) { 321 printhdr(); 322 hdrcnt = 20; 323 } 324 if (kvm_read(kd, off, (char *)&nfsstats, sizeof nfsstats) < 0) { 325 fprintf(stderr, "nfsstat: kvm_read failed\n"); 326 exit(1); 327 } 328 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 329 nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR], 330 nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP], 331 nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK], 332 nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ], 333 nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE], 334 nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME], 335 nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS], 336 (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR]) 337 +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS])); 338 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 339 nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR], 340 nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP], 341 nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK], 342 nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ], 343 nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE], 344 nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME], 345 nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS], 346 (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR]) 347 +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS])); 348 lastst = nfsstats; 349 fflush(stdout); 350 oldmask = sigblock(sigmask(SIGALRM)); 351 if (!signalled) 352 sigpause(0); 353 sigsetmask(oldmask); 354 signalled = 0; 355 (void)alarm(interval); 356 } 357 /*NOTREACHED*/ 358 } 359 360 void 361 printhdr() 362 { 363 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 364 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 365 "Access", "Readdir"); 366 fflush(stdout); 367 } 368 369 /* 370 * Called if an interval expires before sidewaysintpr has completed a loop. 371 * Sets a flag to not wait for the alarm. 372 */ 373 void 374 catchalarm() 375 { 376 signalled = 1; 377 } 378 379 void 380 usage() 381 { 382 (void)fprintf(stderr, 383 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 384 exit(1); 385 } 386
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