nfsstat.c revision 1.4
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 1.4 1994/06/09 15:49:01 pk 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 __P((off_t)); 93 void printhdr __P((void)); 94 void sidewaysintpr __P((u_int, off_t)); 95 void usage __P((void)); 96 97 main(argc, argv) 98 int argc; 99 char **argv; 100 { 101 extern int optind; 102 extern char *optarg; 103 u_int interval; 104 int ch; 105 106 interval = 0; 107 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 108 switch(ch) { 109 case 'M': 110 kmemf = optarg; 111 kflag = 1; 112 break; 113 case 'N': 114 kernel = optarg; 115 break; 116 case 'w': 117 interval = atoi(optarg); 118 break; 119 case '?': 120 default: 121 usage(); 122 } 123 argc -= optind; 124 argv += optind; 125 126 #define BACKWARD_COMPATIBILITY 127 #ifdef BACKWARD_COMPATIBILITY 128 if (*argv) { 129 kernel = *++argv; 130 if (*++argv) { 131 kmemf = *argv; 132 kflag = 1; 133 } 134 } 135 #endif 136 if (nlist(kernel, nl) < 0 || nl[0].n_type == 0) { 137 (void)fprintf(stderr, "nfsstate: %s: no namelist\n", kernel); 138 exit(1); 139 } 140 kmem = kvm_open(NULL,NULL,NULL,O_RDONLY,"kvm_open"); 141 if (kmem == NULL) { 142 (void)fprintf(stderr, 143 "nfsstat: %s: %s\n", kmemf, strerror(errno)); 144 kvm_close(kmem); 145 exit(1); 146 } 147 if (kflag) { 148 #ifdef NEWVM 149 (void)fprintf(stderr, "nfsstat: can't do core files yet\n"); 150 exit(1); 151 #else 152 off_t off; 153 154 Sysmap = (struct pte *) 155 malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 156 if (!Sysmap) { 157 (void)fprintf(stderr, "nfsstat: %s\n", strerror(errno)); 158 exit(1); 159 } 160 kvm_read(kmem, (long) nl[N_SYSMAP].n_value, (char *)Sysmap, 161 (int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 162 #endif 163 } 164 165 if (!nl[N_NFSSTAT].n_value) { 166 (void)fprintf(stderr, "nfsstat: nfsstats symbol not defined\n"); 167 kvm_close(kmem); 168 exit(1); 169 } 170 if (interval) 171 sidewaysintpr(interval, (off_t)nl[N_NFSSTAT].n_value); 172 else 173 intpr((off_t)nl[N_NFSSTAT].n_value); 174 kvm_close(kmem); 175 exit(0); 176 } 177 178 /* 179 * Print a description of the network interfaces. 180 */ 181 void 182 intpr(nfsstataddr) 183 off_t nfsstataddr; 184 { 185 struct nfsstats nfsstats; 186 187 kvm_read(kmem, nfsstataddr, (char *)&nfsstats, sizeof(struct nfsstats)); 188 printf("Client Info:\n"); 189 printf("Rpc Counts:\n"); 190 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 191 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 192 "Write", "Create", "Remove"); 193 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 194 nfsstats.rpccnt[1], 195 nfsstats.rpccnt[2], 196 nfsstats.rpccnt[4], 197 nfsstats.rpccnt[5], 198 nfsstats.rpccnt[6], 199 nfsstats.rpccnt[8], 200 nfsstats.rpccnt[9], 201 nfsstats.rpccnt[10]); 202 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 203 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 204 "Readdir", "Statfs"); 205 printf("%9d %9d %9d %9d %9d %9d %9d\n", 206 nfsstats.rpccnt[11], 207 nfsstats.rpccnt[12], 208 nfsstats.rpccnt[13], 209 nfsstats.rpccnt[14], 210 nfsstats.rpccnt[15], 211 nfsstats.rpccnt[16], 212 nfsstats.rpccnt[17]); 213 printf("Rpc Info:\n"); 214 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 215 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 216 printf("%9d %9d %9d %9d %9d\n", 217 nfsstats.rpctimeouts, 218 nfsstats.rpcinvalid, 219 nfsstats.rpcunexpected, 220 nfsstats.rpcretries, 221 nfsstats.rpcrequests); 222 printf("Cache Info:\n"); 223 printf("%9.9s %9.9s %9.9s %9.9s", 224 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 225 printf(" %9.9s %9.9s %9.9s %9.9s\n", 226 "BioR Hits", "Misses", "BioW Hits", "Misses"); 227 printf("%9d %9d %9d %9d", 228 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 229 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 230 printf(" %9d %9d %9d %9d\n", 231 nfsstats.biocache_reads-nfsstats.read_bios, 232 nfsstats.read_bios, 233 nfsstats.biocache_writes-nfsstats.write_bios, 234 nfsstats.write_bios); 235 printf("%9.9s %9.9s %9.9s %9.9s", 236 "BioRLHits", "Misses", "BioD Hits", "Misses"); 237 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 238 printf("%9d %9d %9d %9d", 239 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 240 nfsstats.readlink_bios, 241 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 242 nfsstats.readdir_bios); 243 printf(" %9d %9d\n", 244 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 245 printf("\nServer Info:\n"); 246 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 247 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 248 "Write", "Create", "Remove"); 249 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 250 nfsstats.srvrpccnt[1], 251 nfsstats.srvrpccnt[2], 252 nfsstats.srvrpccnt[4], 253 nfsstats.srvrpccnt[5], 254 nfsstats.srvrpccnt[6], 255 nfsstats.srvrpccnt[8], 256 nfsstats.srvrpccnt[9], 257 nfsstats.srvrpccnt[10]); 258 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 259 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 260 "Readdir", "Statfs"); 261 printf("%9d %9d %9d %9d %9d %9d %9d\n", 262 nfsstats.srvrpccnt[11], 263 nfsstats.srvrpccnt[12], 264 nfsstats.srvrpccnt[13], 265 nfsstats.srvrpccnt[14], 266 nfsstats.srvrpccnt[15], 267 nfsstats.srvrpccnt[16], 268 nfsstats.srvrpccnt[17]); 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 } 282 283 u_char signalled; /* set if alarm goes off "early" */ 284 285 /* 286 * Print a running summary of nfs statistics. 287 * Repeat display every interval seconds, showing statistics 288 * collected over that interval. Assumes that interval is non-zero. 289 * First line printed at top of screen is always cumulative. 290 */ 291 void 292 sidewaysintpr(interval, off) 293 u_int interval; 294 off_t off; 295 { 296 struct nfsstats nfsstats, lastst; 297 int hdrcnt, oldmask; 298 void catchalarm(); 299 300 (void)signal(SIGALRM, catchalarm); 301 signalled = 0; 302 (void)alarm(interval); 303 bzero((caddr_t)&lastst, sizeof(lastst)); 304 305 for (hdrcnt = 1;;) { 306 if (!--hdrcnt) { 307 printhdr(); 308 hdrcnt = 20; 309 } 310 kvm_read(kmem, off, (char *)&nfsstats, 311 sizeof(struct nfsstats)); 312 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 313 nfsstats.rpccnt[1]-lastst.rpccnt[1], 314 nfsstats.rpccnt[4]-lastst.rpccnt[4], 315 nfsstats.rpccnt[5]-lastst.rpccnt[5], 316 nfsstats.rpccnt[6]-lastst.rpccnt[6], 317 nfsstats.rpccnt[8]-lastst.rpccnt[8], 318 nfsstats.rpccnt[11]-lastst.rpccnt[11], 319 nfsstats.rpccnt[12]-lastst.rpccnt[12], 320 nfsstats.rpccnt[16]-lastst.rpccnt[16]); 321 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 322 nfsstats.srvrpccnt[1]-lastst.srvrpccnt[1], 323 nfsstats.srvrpccnt[4]-lastst.srvrpccnt[4], 324 nfsstats.srvrpccnt[5]-lastst.srvrpccnt[5], 325 nfsstats.srvrpccnt[6]-lastst.srvrpccnt[6], 326 nfsstats.srvrpccnt[8]-lastst.srvrpccnt[8], 327 nfsstats.srvrpccnt[11]-lastst.srvrpccnt[11], 328 nfsstats.srvrpccnt[12]-lastst.srvrpccnt[12], 329 nfsstats.srvrpccnt[16]-lastst.srvrpccnt[16]); 330 lastst = nfsstats; 331 fflush(stdout); 332 oldmask = sigblock(sigmask(SIGALRM)); 333 if (!signalled) 334 sigpause(0); 335 sigsetmask(oldmask); 336 signalled = 0; 337 (void)alarm(interval); 338 } 339 /*NOTREACHED*/ 340 } 341 342 void 343 printhdr() 344 { 345 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 346 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 347 "Link", "Readdir"); 348 fflush(stdout); 349 } 350 351 /* 352 * Called if an interval expires before sidewaysintpr has completed a loop. 353 * Sets a flag to not wait for the alarm. 354 */ 355 void 356 catchalarm() 357 { 358 signalled = 1; 359 } 360 361 void 362 usage() 363 { 364 (void)fprintf(stderr, 365 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 366 exit(1); 367 } 368
Indexes created Tue Oct 14 06:10:07 GMT 2025