nfsstat.c revision 1.5
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 1.5 1994/06/13 21:02:20 mycroft Exp $"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #if BSD >= 199103 50 #define NEWVM 51 #endif 52 #ifndef NEWVM 53 #include <sys/vmmac.h> 54 #include <sys/ucred.h> 55 #include <machine/pte.h> 56 #endif 57 #include <sys/mount.h> 58 #include <nfs/nfsv2.h> 59 #include <nfs/nfs.h> 60 #include <signal.h> 61 #include <fcntl.h> 62 #include <ctype.h> 63 #include <errno.h> 64 #include <kvm.h> 65 #include <nlist.h> 66 #include <unistd.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <paths.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", "Statfs", "RdirLook"); 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_STATFS], 184 nfsstats.rpccnt[NQNFSPROC_READDIRLOOK]); 185 printf("%9.9s %9.9s %9.9s\n", 186 "GLease", "Vacate", "Evict"); 187 printf("%9d %9d %9d\n", 188 nfsstats.rpccnt[NQNFSPROC_GETLEASE], 189 nfsstats.rpccnt[NQNFSPROC_VACATED], 190 nfsstats.rpccnt[NQNFSPROC_EVICTED]); 191 printf("Rpc Info:\n"); 192 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 193 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 194 printf("%9d %9d %9d %9d %9d\n", 195 nfsstats.rpctimeouts, 196 nfsstats.rpcinvalid, 197 nfsstats.rpcunexpected, 198 nfsstats.rpcretries, 199 nfsstats.rpcrequests); 200 printf("Cache Info:\n"); 201 printf("%9.9s %9.9s %9.9s %9.9s", 202 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 203 printf(" %9.9s %9.9s %9.9s %9.9s\n", 204 "BioR Hits", "Misses", "BioW Hits", "Misses"); 205 printf("%9d %9d %9d %9d", 206 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 207 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 208 printf(" %9d %9d %9d %9d\n", 209 nfsstats.biocache_reads-nfsstats.read_bios, 210 nfsstats.read_bios, 211 nfsstats.biocache_writes-nfsstats.write_bios, 212 nfsstats.write_bios); 213 printf("%9.9s %9.9s %9.9s %9.9s", 214 "BioRLHits", "Misses", "BioD Hits", "Misses"); 215 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 216 printf("%9d %9d %9d %9d", 217 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 218 nfsstats.readlink_bios, 219 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 220 nfsstats.readdir_bios); 221 printf(" %9d %9d\n", 222 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 223 printf("\nServer Info:\n"); 224 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 225 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 226 "Write", "Create", "Remove"); 227 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 228 nfsstats.srvrpccnt[NFSPROC_GETATTR], 229 nfsstats.srvrpccnt[NFSPROC_SETATTR], 230 nfsstats.srvrpccnt[NFSPROC_LOOKUP], 231 nfsstats.srvrpccnt[NFSPROC_READLINK], 232 nfsstats.srvrpccnt[NFSPROC_READ], 233 nfsstats.srvrpccnt[NFSPROC_WRITE], 234 nfsstats.srvrpccnt[NFSPROC_CREATE], 235 nfsstats.srvrpccnt[NFSPROC_REMOVE]); 236 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 237 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 238 "Readdir", "Statfs", "RdirLook"); 239 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 240 nfsstats.srvrpccnt[NFSPROC_RENAME], 241 nfsstats.srvrpccnt[NFSPROC_LINK], 242 nfsstats.srvrpccnt[NFSPROC_SYMLINK], 243 nfsstats.srvrpccnt[NFSPROC_MKDIR], 244 nfsstats.srvrpccnt[NFSPROC_RMDIR], 245 nfsstats.srvrpccnt[NFSPROC_READDIR], 246 nfsstats.srvrpccnt[NFSPROC_STATFS], 247 nfsstats.srvrpccnt[NQNFSPROC_READDIRLOOK]); 248 printf("%9.9s %9.9s %9.9s\n", 249 "GLease", "Vacate", "Evict"); 250 printf("%9d %9d %9d\n", 251 nfsstats.srvrpccnt[NQNFSPROC_GETLEASE], 252 nfsstats.srvrpccnt[NQNFSPROC_VACATED], 253 nfsstats.srvrpccnt[NQNFSPROC_EVICTED]); 254 printf("Server Ret-Failed\n"); 255 printf("%17d\n", nfsstats.srvrpc_errs); 256 printf("Server Faults\n"); 257 printf("%13d\n", nfsstats.srv_errs); 258 printf("Server Cache Stats:\n"); 259 printf("%9.9s %9.9s %9.9s %9.9s\n", 260 "Inprog", "Idem", "Non-idem", "Misses"); 261 printf("%9d %9d %9d %9d\n", 262 nfsstats.srvcache_inproghits, 263 nfsstats.srvcache_idemdonehits, 264 nfsstats.srvcache_nonidemdonehits, 265 nfsstats.srvcache_misses); 266 printf("Server Lease Stats:\n"); 267 printf("%9.9s %9.9s %9.9s\n", 268 "Leases", "PeakL", "GLeases"); 269 printf("%9d %9d %9d\n", 270 nfsstats.srvnqnfs_leases, 271 nfsstats.srvnqnfs_maxleases, 272 nfsstats.srvnqnfs_getleases); 273 } 274 275 u_char signalled; /* set if alarm goes off "early" */ 276 277 /* 278 * Print a running summary of nfs statistics. 279 * Repeat display every interval seconds, showing statistics 280 * collected over that interval. Assumes that interval is non-zero. 281 * First line printed at top of screen is always cumulative. 282 */ 283 void 284 sidewaysintpr(interval, off) 285 u_int interval; 286 u_long off; 287 { 288 struct nfsstats nfsstats, lastst; 289 int hdrcnt, oldmask; 290 void catchalarm(); 291 292 (void)signal(SIGALRM, catchalarm); 293 signalled = 0; 294 (void)alarm(interval); 295 bzero((caddr_t)&lastst, sizeof(lastst)); 296 297 for (hdrcnt = 1;;) { 298 if (!--hdrcnt) { 299 printhdr(); 300 hdrcnt = 20; 301 } 302 if (kvm_read(kd, off, (char *)&nfsstats, sizeof nfsstats) < 0) { 303 fprintf(stderr, "nfsstat: kvm_read failed\n"); 304 exit(1); 305 } 306 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 307 nfsstats.rpccnt[1]-lastst.rpccnt[1], 308 nfsstats.rpccnt[4]-lastst.rpccnt[4], 309 nfsstats.rpccnt[5]-lastst.rpccnt[5], 310 nfsstats.rpccnt[6]-lastst.rpccnt[6], 311 nfsstats.rpccnt[8]-lastst.rpccnt[8], 312 nfsstats.rpccnt[11]-lastst.rpccnt[11], 313 nfsstats.rpccnt[12]-lastst.rpccnt[12], 314 nfsstats.rpccnt[16]-lastst.rpccnt[16]); 315 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 316 nfsstats.srvrpccnt[1]-lastst.srvrpccnt[1], 317 nfsstats.srvrpccnt[4]-lastst.srvrpccnt[4], 318 nfsstats.srvrpccnt[5]-lastst.srvrpccnt[5], 319 nfsstats.srvrpccnt[6]-lastst.srvrpccnt[6], 320 nfsstats.srvrpccnt[8]-lastst.srvrpccnt[8], 321 nfsstats.srvrpccnt[11]-lastst.srvrpccnt[11], 322 nfsstats.srvrpccnt[12]-lastst.srvrpccnt[12], 323 nfsstats.srvrpccnt[16]-lastst.srvrpccnt[16]); 324 lastst = nfsstats; 325 fflush(stdout); 326 oldmask = sigblock(sigmask(SIGALRM)); 327 if (!signalled) 328 sigpause(0); 329 sigsetmask(oldmask); 330 signalled = 0; 331 (void)alarm(interval); 332 } 333 /*NOTREACHED*/ 334 } 335 336 void 337 printhdr() 338 { 339 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 340 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 341 "Link", "Readdir"); 342 fflush(stdout); 343 } 344 345 /* 346 * Called if an interval expires before sidewaysintpr has completed a loop. 347 * Sets a flag to not wait for the alarm. 348 */ 349 void 350 catchalarm() 351 { 352 signalled = 1; 353 } 354 355 void 356 usage() 357 { 358 (void)fprintf(stderr, 359 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 360 exit(1); 361 } 362
Indexes created Sat Sep 27 22:09:54 GMT 2025