nfsstat.c revision 1.3
1 /* 2 * Copyright (c) 1983, 1989 Regents of the University of California. 3 * 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 char copyright[] = 39 "@(#) Copyright (c) 1983, 1989 Regents of the University of California.\n\ 40 All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 /*static char sccsid[] = "from: @(#)nfsstat.c 5.9 (Berkeley) 7/1/91";*/ 45 static char rcsid[] = "$Id: nfsstat.c,v 1.3 1994/05/27 11:19:08 cgd 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 <machine/pte.h> 55 #endif 56 #include <sys/mount.h> 57 #include <nfs/nfsv2.h> 58 #include <nfs/nfs.h> 59 #include <signal.h> 60 #include <fcntl.h> 61 #include <ctype.h> 62 #include <errno.h> 63 #include <nlist.h> 64 #include <unistd.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <string.h> 68 #include <paths.h> 69 #include <kvm.h> 70 71 struct nlist nl[] = { 72 #define N_NFSSTAT 0 73 { "_nfsstats" }, 74 #ifndef NEWVM 75 #define N_SYSMAP 1 76 { "_Sysmap" }, 77 #define N_SYSSIZE 2 78 { "_Syssize" }, 79 #endif 80 "", 81 }; 82 83 #ifndef NEWVM 84 struct pte *Sysmap; 85 #endif 86 87 int kflag; 88 kvm_t *kmem; 89 char *kernel = _PATH_UNIX; 90 char *kmemf = _PATH_KMEM; 91 92 void intpr(), printhdr(), sidewaysintpr(), usage(); 93 94 main(argc, argv) 95 int argc; 96 char **argv; 97 { 98 extern int optind; 99 extern char *optarg; 100 u_int interval; 101 int ch; 102 103 interval = 0; 104 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 105 switch(ch) { 106 case 'M': 107 kmemf = optarg; 108 kflag = 1; 109 break; 110 case 'N': 111 kernel = optarg; 112 break; 113 case 'w': 114 interval = atoi(optarg); 115 break; 116 case '?': 117 default: 118 usage(); 119 } 120 argc -= optind; 121 argv += optind; 122 123 #define BACKWARD_COMPATIBILITY 124 #ifdef BACKWARD_COMPATIBILITY 125 if (*argv) { 126 kernel = *++argv; 127 if (*++argv) { 128 kmemf = *argv; 129 kflag = 1; 130 } 131 } 132 #endif 133 if (nlist(kernel, nl) < 0 || nl[0].n_type == 0) { 134 (void)fprintf(stderr, "nfsstate: %s: no namelist\n", kernel); 135 exit(1); 136 } 137 kmem = kvm_open(NULL,NULL,NULL,O_RDONLY,"kvm_open"); 138 if (kmem == NULL) { 139 (void)fprintf(stderr, 140 "nfsstat: %s: %s\n", kmemf, strerror(errno)); 141 kvm_close(kmem); 142 exit(1); 143 } 144 if (kflag) { 145 #ifdef NEWVM 146 (void)fprintf(stderr, "nfsstat: can't do core files yet\n"); 147 exit(1); 148 #else 149 off_t off; 150 151 Sysmap = (struct pte *) 152 malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 153 if (!Sysmap) { 154 (void)fprintf(stderr, "nfsstat: %s\n", strerror(errno)); 155 exit(1); 156 } 157 kvm_read(kmem, (long) nl[N_SYSMAP].n_value, (char *)Sysmap, 158 (int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 159 #endif 160 } 161 162 if (!nl[N_NFSSTAT].n_value) { 163 (void)fprintf(stderr, "nfsstat: nfsstats symbol not defined\n"); 164 kvm_close(kmem); 165 exit(1); 166 } 167 if (interval) 168 sidewaysintpr(interval, nl[N_NFSSTAT].n_value); 169 else 170 intpr(nl[N_NFSSTAT].n_value); 171 kvm_close(kmem); 172 exit(0); 173 } 174 175 /* 176 * Print a description of the network interfaces. 177 */ 178 void 179 intpr(nfsstataddr) 180 off_t nfsstataddr; 181 { 182 struct nfsstats nfsstats; 183 184 kvm_read(kmem, nfsstataddr, (char *)&nfsstats, sizeof(struct nfsstats)); 185 printf("Client Info:\n"); 186 printf("Rpc Counts:\n"); 187 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 188 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 189 "Write", "Create", "Remove"); 190 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 191 nfsstats.rpccnt[1], 192 nfsstats.rpccnt[2], 193 nfsstats.rpccnt[4], 194 nfsstats.rpccnt[5], 195 nfsstats.rpccnt[6], 196 nfsstats.rpccnt[8], 197 nfsstats.rpccnt[9], 198 nfsstats.rpccnt[10]); 199 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 200 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 201 "Readdir", "Statfs"); 202 printf("%9d %9d %9d %9d %9d %9d %9d\n", 203 nfsstats.rpccnt[11], 204 nfsstats.rpccnt[12], 205 nfsstats.rpccnt[13], 206 nfsstats.rpccnt[14], 207 nfsstats.rpccnt[15], 208 nfsstats.rpccnt[16], 209 nfsstats.rpccnt[17]); 210 printf("Rpc Info:\n"); 211 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 212 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 213 printf("%9d %9d %9d %9d %9d\n", 214 nfsstats.rpctimeouts, 215 nfsstats.rpcinvalid, 216 nfsstats.rpcunexpected, 217 nfsstats.rpcretries, 218 nfsstats.rpcrequests); 219 printf("Cache Info:\n"); 220 printf("%9.9s %9.9s %9.9s %9.9s", 221 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 222 printf(" %9.9s %9.9s %9.9s %9.9s\n", 223 "BioR Hits", "Misses", "BioW Hits", "Misses"); 224 printf("%9d %9d %9d %9d", 225 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 226 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 227 printf(" %9d %9d %9d %9d\n", 228 nfsstats.biocache_reads-nfsstats.read_bios, 229 nfsstats.read_bios, 230 nfsstats.biocache_writes-nfsstats.write_bios, 231 nfsstats.write_bios); 232 printf("%9.9s %9.9s %9.9s %9.9s", 233 "BioRLHits", "Misses", "BioD Hits", "Misses"); 234 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 235 printf("%9d %9d %9d %9d", 236 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 237 nfsstats.readlink_bios, 238 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 239 nfsstats.readdir_bios); 240 printf(" %9d %9d\n", 241 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 242 printf("\nServer Info:\n"); 243 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 244 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 245 "Write", "Create", "Remove"); 246 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 247 nfsstats.srvrpccnt[1], 248 nfsstats.srvrpccnt[2], 249 nfsstats.srvrpccnt[4], 250 nfsstats.srvrpccnt[5], 251 nfsstats.srvrpccnt[6], 252 nfsstats.srvrpccnt[8], 253 nfsstats.srvrpccnt[9], 254 nfsstats.srvrpccnt[10]); 255 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 256 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 257 "Readdir", "Statfs"); 258 printf("%9d %9d %9d %9d %9d %9d %9d\n", 259 nfsstats.srvrpccnt[11], 260 nfsstats.srvrpccnt[12], 261 nfsstats.srvrpccnt[13], 262 nfsstats.srvrpccnt[14], 263 nfsstats.srvrpccnt[15], 264 nfsstats.srvrpccnt[16], 265 nfsstats.srvrpccnt[17]); 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 } 279 280 u_char signalled; /* set if alarm goes off "early" */ 281 282 /* 283 * Print a running summary of nfs statistics. 284 * Repeat display every interval seconds, showing statistics 285 * collected over that interval. Assumes that interval is non-zero. 286 * First line printed at top of screen is always cumulative. 287 */ 288 void 289 sidewaysintpr(interval, off) 290 u_int interval; 291 off_t off; 292 { 293 struct nfsstats nfsstats, lastst; 294 int hdrcnt, oldmask; 295 void catchalarm(); 296 297 (void)signal(SIGALRM, catchalarm); 298 signalled = 0; 299 (void)alarm(interval); 300 bzero((caddr_t)&lastst, sizeof(lastst)); 301 302 for (hdrcnt = 1;;) { 303 if (!--hdrcnt) { 304 printhdr(); 305 hdrcnt = 20; 306 } 307 kvm_read(kmem, off, (char *)&nfsstats, 308 sizeof(struct nfsstats)); 309 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 310 nfsstats.rpccnt[1]-lastst.rpccnt[1], 311 nfsstats.rpccnt[4]-lastst.rpccnt[4], 312 nfsstats.rpccnt[5]-lastst.rpccnt[5], 313 nfsstats.rpccnt[6]-lastst.rpccnt[6], 314 nfsstats.rpccnt[8]-lastst.rpccnt[8], 315 nfsstats.rpccnt[11]-lastst.rpccnt[11], 316 nfsstats.rpccnt[12]-lastst.rpccnt[12], 317 nfsstats.rpccnt[16]-lastst.rpccnt[16]); 318 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 319 nfsstats.srvrpccnt[1]-lastst.srvrpccnt[1], 320 nfsstats.srvrpccnt[4]-lastst.srvrpccnt[4], 321 nfsstats.srvrpccnt[5]-lastst.srvrpccnt[5], 322 nfsstats.srvrpccnt[6]-lastst.srvrpccnt[6], 323 nfsstats.srvrpccnt[8]-lastst.srvrpccnt[8], 324 nfsstats.srvrpccnt[11]-lastst.srvrpccnt[11], 325 nfsstats.srvrpccnt[12]-lastst.srvrpccnt[12], 326 nfsstats.srvrpccnt[16]-lastst.srvrpccnt[16]); 327 lastst = nfsstats; 328 fflush(stdout); 329 oldmask = sigblock(sigmask(SIGALRM)); 330 if (!signalled) 331 sigpause(0); 332 sigsetmask(oldmask); 333 signalled = 0; 334 (void)alarm(interval); 335 } 336 /*NOTREACHED*/ 337 } 338 339 void 340 printhdr() 341 { 342 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 343 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 344 "Link", "Readdir"); 345 fflush(stdout); 346 } 347 348 /* 349 * Called if an interval expires before sidewaysintpr has completed a loop. 350 * Sets a flag to not wait for the alarm. 351 */ 352 void 353 catchalarm() 354 { 355 signalled = 1; 356 } 357 358 void 359 usage() 360 { 361 (void)fprintf(stderr, 362 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 363 exit(1); 364 } 365
Indexes created Tue Oct 21 16:10:11 GMT 2025