nfsstat.c revision 1.6
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 /*static char sccsid[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93";*/ 45 static char *rcsid = "$Id: nfsstat.c,v 1.6 1996/02/18 12:02:00 fvdl Exp $"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/mount.h> 50 #include <sys/sysctl.h> 51 #include <nfs/rpcv2.h> 52 #include <nfs/nfsproto.h> 53 #include <nfs/nfs.h> 54 #include <signal.h> 55 #include <fcntl.h> 56 #include <ctype.h> 57 #include <errno.h> 58 #include <kvm.h> 59 #include <nlist.h> 60 #include <unistd.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <paths.h> 65 #include <err.h> 66 67 struct nlist nl[] = { 68 #define N_NFSSTAT 0 69 { "_nfsstats" }, 70 "", 71 }; 72 kvm_t *kd; 73 74 void intpr(), printhdr(), sidewaysintpr(), usage(); 75 76 main(argc, argv) 77 int argc; 78 char **argv; 79 { 80 extern int optind; 81 extern char *optarg; 82 u_int interval; 83 int ch; 84 char *memf, *nlistf; 85 char errbuf[80]; 86 87 interval = 0; 88 memf = nlistf = NULL; 89 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 90 switch(ch) { 91 case 'M': 92 memf = optarg; 93 break; 94 case 'N': 95 nlistf = optarg; 96 break; 97 case 'w': 98 interval = atoi(optarg); 99 break; 100 case '?': 101 default: 102 usage(); 103 } 104 argc -= optind; 105 argv += optind; 106 107 #define BACKWARD_COMPATIBILITY 108 #ifdef BACKWARD_COMPATIBILITY 109 if (*argv) { 110 interval = atoi(*argv); 111 if (*++argv) { 112 nlistf = *argv; 113 if (*++argv) 114 memf = *argv; 115 } 116 } 117 #endif 118 /* 119 * Discard setgid privileges if not the running kernel so that bad 120 * guys can't print interesting stuff from kernel memory. 121 */ 122 if (nlistf != NULL || memf != NULL) 123 setgid(getgid()); 124 125 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) { 126 fprintf(stderr, "nfsstat: kvm_openfiles: %s\n", errbuf); 127 exit(1); 128 } 129 if (kvm_nlist(kd, nl) != 0) { 130 fprintf(stderr, "nfsstat: kvm_nlist: can't get names\n"); 131 exit(1); 132 } 133 134 if (interval) 135 sidewaysintpr(interval, nl[N_NFSSTAT].n_value); 136 else 137 intpr(nl[N_NFSSTAT].n_value); 138 exit(0); 139 } 140 141 /* 142 * Print a description of the nfs stats. 143 */ 144 void 145 intpr(nfsstataddr) 146 u_long nfsstataddr; 147 { 148 struct nfsstats nfsstats; 149 150 if (kvm_read(kd, (u_long)nfsstataddr, (char *)&nfsstats, sizeof(struct nfsstats)) < 0) { 151 fprintf(stderr, "nfsstat: kvm_read failed\n"); 152 exit(1); 153 } 154 printf("Client Info:\n"); 155 printf("Rpc Counts:\n"); 156 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 157 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 158 "Write", "Create", "Remove"); 159 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 160 nfsstats.rpccnt[NFSPROC_GETATTR], 161 nfsstats.rpccnt[NFSPROC_SETATTR], 162 nfsstats.rpccnt[NFSPROC_LOOKUP], 163 nfsstats.rpccnt[NFSPROC_READLINK], 164 nfsstats.rpccnt[NFSPROC_READ], 165 nfsstats.rpccnt[NFSPROC_WRITE], 166 nfsstats.rpccnt[NFSPROC_CREATE], 167 nfsstats.rpccnt[NFSPROC_REMOVE]); 168 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 169 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 170 "Readdir", "RdirPlus", "Access"); 171 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 172 nfsstats.rpccnt[NFSPROC_RENAME], 173 nfsstats.rpccnt[NFSPROC_LINK], 174 nfsstats.rpccnt[NFSPROC_SYMLINK], 175 nfsstats.rpccnt[NFSPROC_MKDIR], 176 nfsstats.rpccnt[NFSPROC_RMDIR], 177 nfsstats.rpccnt[NFSPROC_READDIR], 178 nfsstats.rpccnt[NFSPROC_READDIRPLUS], 179 nfsstats.rpccnt[NFSPROC_ACCESS]); 180 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 181 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 182 "GLease", "Vacate", "Evict"); 183 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 184 nfsstats.rpccnt[NFSPROC_MKNOD], 185 nfsstats.rpccnt[NFSPROC_FSSTAT], 186 nfsstats.rpccnt[NFSPROC_FSINFO], 187 nfsstats.rpccnt[NFSPROC_PATHCONF], 188 nfsstats.rpccnt[NFSPROC_COMMIT], 189 nfsstats.rpccnt[NQNFSPROC_GETLEASE], 190 nfsstats.rpccnt[NQNFSPROC_VACATED], 191 nfsstats.rpccnt[NQNFSPROC_EVICTED]); 192 printf("Rpc Info:\n"); 193 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 194 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 195 printf("%9d %9d %9d %9d %9d\n", 196 nfsstats.rpctimeouts, 197 nfsstats.rpcinvalid, 198 nfsstats.rpcunexpected, 199 nfsstats.rpcretries, 200 nfsstats.rpcrequests); 201 printf("Cache Info:\n"); 202 printf("%9.9s %9.9s %9.9s %9.9s", 203 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 204 printf(" %9.9s %9.9s %9.9s %9.9s\n", 205 "BioR Hits", "Misses", "BioW Hits", "Misses"); 206 printf("%9d %9d %9d %9d", 207 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 208 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 209 printf(" %9d %9d %9d %9d\n", 210 nfsstats.biocache_reads-nfsstats.read_bios, 211 nfsstats.read_bios, 212 nfsstats.biocache_writes-nfsstats.write_bios, 213 nfsstats.write_bios); 214 printf("%9.9s %9.9s %9.9s %9.9s", 215 "BioRLHits", "Misses", "BioD Hits", "Misses"); 216 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 217 printf("%9d %9d %9d %9d", 218 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 219 nfsstats.readlink_bios, 220 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 221 nfsstats.readdir_bios); 222 printf(" %9d %9d\n", 223 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 224 printf("\nServer Info:\n"); 225 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 226 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 227 "Write", "Create", "Remove"); 228 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 229 nfsstats.srvrpccnt[NFSPROC_GETATTR], 230 nfsstats.srvrpccnt[NFSPROC_SETATTR], 231 nfsstats.srvrpccnt[NFSPROC_LOOKUP], 232 nfsstats.srvrpccnt[NFSPROC_READLINK], 233 nfsstats.srvrpccnt[NFSPROC_READ], 234 nfsstats.srvrpccnt[NFSPROC_WRITE], 235 nfsstats.srvrpccnt[NFSPROC_CREATE], 236 nfsstats.srvrpccnt[NFSPROC_REMOVE]); 237 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 238 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 239 "Readdir", "RdirPlus", "Access"); 240 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 241 nfsstats.srvrpccnt[NFSPROC_RENAME], 242 nfsstats.srvrpccnt[NFSPROC_LINK], 243 nfsstats.srvrpccnt[NFSPROC_SYMLINK], 244 nfsstats.srvrpccnt[NFSPROC_MKDIR], 245 nfsstats.srvrpccnt[NFSPROC_RMDIR], 246 nfsstats.srvrpccnt[NFSPROC_READDIR], 247 nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], 248 nfsstats.srvrpccnt[NFSPROC_ACCESS]); 249 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 250 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit", 251 "GLease", "Vacate", "Evict"); 252 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 253 nfsstats.srvrpccnt[NFSPROC_MKNOD], 254 nfsstats.srvrpccnt[NFSPROC_FSSTAT], 255 nfsstats.srvrpccnt[NFSPROC_FSINFO], 256 nfsstats.srvrpccnt[NFSPROC_PATHCONF], 257 nfsstats.srvrpccnt[NFSPROC_COMMIT], 258 nfsstats.srvrpccnt[NQNFSPROC_GETLEASE], 259 nfsstats.srvrpccnt[NQNFSPROC_VACATED], 260 nfsstats.srvrpccnt[NQNFSPROC_EVICTED]); 261 printf("Server Ret-Failed\n"); 262 printf("%17d\n", nfsstats.srvrpc_errs); 263 printf("Server Faults\n"); 264 printf("%13d\n", nfsstats.srv_errs); 265 printf("Server Cache Stats:\n"); 266 printf("%9.9s %9.9s %9.9s %9.9s\n", 267 "Inprog", "Idem", "Non-idem", "Misses"); 268 printf("%9d %9d %9d %9d\n", 269 nfsstats.srvcache_inproghits, 270 nfsstats.srvcache_idemdonehits, 271 nfsstats.srvcache_nonidemdonehits, 272 nfsstats.srvcache_misses); 273 printf("Server Lease Stats:\n"); 274 printf("%9.9s %9.9s %9.9s\n", 275 "Leases", "PeakL", "GLeases"); 276 printf("%9d %9d %9d\n", 277 nfsstats.srvnqnfs_leases, 278 nfsstats.srvnqnfs_maxleases, 279 nfsstats.srvnqnfs_getleases); 280 printf("Server Write Gathering:\n"); 281 printf("%9.9s %9.9s %9.9s\n", 282 "WriteOps", "WriteRPC", "Opsaved"); 283 printf("%9d %9d %9d\n", 284 nfsstats.srvvop_writes, 285 nfsstats.srvrpccnt[NFSPROC_WRITE], 286 nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); 287 } 288 289 u_char signalled; /* set if alarm goes off "early" */ 290 291 /* 292 * Print a running summary of nfs statistics. 293 * Repeat display every interval seconds, showing statistics 294 * collected over that interval. Assumes that interval is non-zero. 295 * First line printed at top of screen is always cumulative. 296 */ 297 void 298 sidewaysintpr(interval, off) 299 u_int interval; 300 u_long off; 301 { 302 struct nfsstats nfsstats, lastst; 303 int hdrcnt, oldmask; 304 void catchalarm(); 305 306 (void)signal(SIGALRM, catchalarm); 307 signalled = 0; 308 (void)alarm(interval); 309 bzero((caddr_t)&lastst, sizeof(lastst)); 310 311 for (hdrcnt = 1;;) { 312 if (!--hdrcnt) { 313 printhdr(); 314 hdrcnt = 20; 315 } 316 if (kvm_read(kd, off, (char *)&nfsstats, sizeof nfsstats) < 0) { 317 fprintf(stderr, "nfsstat: kvm_read failed\n"); 318 exit(1); 319 } 320 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 321 nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR], 322 nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP], 323 nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK], 324 nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ], 325 nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE], 326 nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME], 327 nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS], 328 (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR]) 329 +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS])); 330 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 331 nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR], 332 nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP], 333 nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK], 334 nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ], 335 nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE], 336 nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME], 337 nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS], 338 (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR]) 339 +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS])); 340 lastst = nfsstats; 341 fflush(stdout); 342 oldmask = sigblock(sigmask(SIGALRM)); 343 if (!signalled) 344 sigpause(0); 345 sigsetmask(oldmask); 346 signalled = 0; 347 (void)alarm(interval); 348 } 349 /*NOTREACHED*/ 350 } 351 352 void 353 printhdr() 354 { 355 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 356 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 357 "Access", "Readdir"); 358 fflush(stdout); 359 } 360 361 /* 362 * Called if an interval expires before sidewaysintpr has completed a loop. 363 * Sets a flag to not wait for the alarm. 364 */ 365 void 366 catchalarm() 367 { 368 signalled = 1; 369 } 370 371 void 372 usage() 373 { 374 (void)fprintf(stderr, 375 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 376 exit(1); 377 } 378
Indexes created Wed Sep 24 05:09:52 GMT 2025