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 1.2 1993/08/01 18:10:36 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 <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 70 struct nlist nl[] = { 71 #define N_NFSSTAT 0 72 { "_nfsstats" }, 73 #ifndef NEWVM 74 #define N_SYSMAP 1 75 { "_Sysmap" }, 76 #define N_SYSSIZE 2 77 { "_Syssize" }, 78 #endif 79 "", 80 }; 81 82 #ifndef NEWVM 83 struct pte *Sysmap; 84 #endif 85 86 int kflag, kmem; 87 char *kernel = _PATH_UNIX; 88 char *kmemf = _PATH_KMEM; 89 90 off_t klseek(); 91 void intpr(), printhdr(), sidewaysintpr(), usage(); 92 93 main(argc, argv) 94 int argc; 95 char **argv; 96 { 97 extern int optind; 98 extern char *optarg; 99 u_int interval; 100 int ch; 101 102 interval = 0; 103 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 104 switch(ch) { 105 case 'M': 106 kmemf = optarg; 107 kflag = 1; 108 break; 109 case 'N': 110 kernel = optarg; 111 break; 112 case 'w': 113 interval = atoi(optarg); 114 break; 115 case '?': 116 default: 117 usage(); 118 } 119 argc -= optind; 120 argv += optind; 121 122 #define BACKWARD_COMPATIBILITY 123 #ifdef BACKWARD_COMPATIBILITY 124 if (*argv) { 125 kernel = *++argv; 126 if (*++argv) { 127 kmemf = *argv; 128 kflag = 1; 129 } 130 } 131 #endif 132 if (nlist(kernel, nl) < 0 || nl[0].n_type == 0) { 133 (void)fprintf(stderr, "nfsstate: %s: no namelist\n", kernel); 134 exit(1); 135 } 136 kmem = open(kmemf, O_RDONLY); 137 if (kmem < 0) { 138 (void)fprintf(stderr, 139 "nfsstat: %s: %s\n", kmemf, strerror(errno)); 140 exit(1); 141 } 142 if (kflag) { 143 #ifdef NEWVM 144 (void)fprintf(stderr, "nfsstat: can't do core files yet\n"); 145 exit(1); 146 #else 147 off_t off; 148 149 Sysmap = (struct pte *) 150 malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 151 if (!Sysmap) { 152 (void)fprintf(stderr, "nfsstat: %s\n", strerror(errno)); 153 exit(1); 154 } 155 off = nl[N_SYSMAP].n_value & ~KERNBASE; 156 (void)lseek(kmem, off, L_SET); 157 (void)read(kmem, (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 exit(1); 165 } 166 if (interval) 167 sidewaysintpr(interval, nl[N_NFSSTAT].n_value); 168 else 169 intpr(nl[N_NFSSTAT].n_value); 170 exit(0); 171 } 172 173 /* 174 * Print a description of the network interfaces. 175 */ 176 void 177 intpr(nfsstataddr) 178 off_t nfsstataddr; 179 { 180 struct nfsstats nfsstats; 181 182 klseek(kmem, nfsstataddr, 0L); 183 read(kmem, (char *)&nfsstats, sizeof(struct nfsstats)); 184 printf("Client Info:\n"); 185 printf("Rpc Counts:\n"); 186 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 187 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 188 "Write", "Create", "Remove"); 189 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 190 nfsstats.rpccnt[1], 191 nfsstats.rpccnt[2], 192 nfsstats.rpccnt[4], 193 nfsstats.rpccnt[5], 194 nfsstats.rpccnt[6], 195 nfsstats.rpccnt[8], 196 nfsstats.rpccnt[9], 197 nfsstats.rpccnt[10]); 198 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 199 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 200 "Readdir", "Statfs"); 201 printf("%9d %9d %9d %9d %9d %9d %9d\n", 202 nfsstats.rpccnt[11], 203 nfsstats.rpccnt[12], 204 nfsstats.rpccnt[13], 205 nfsstats.rpccnt[14], 206 nfsstats.rpccnt[15], 207 nfsstats.rpccnt[16], 208 nfsstats.rpccnt[17]); 209 printf("Rpc Info:\n"); 210 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 211 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 212 printf("%9d %9d %9d %9d %9d\n", 213 nfsstats.rpctimeouts, 214 nfsstats.rpcinvalid, 215 nfsstats.rpcunexpected, 216 nfsstats.rpcretries, 217 nfsstats.rpcrequests); 218 printf("Cache Info:\n"); 219 printf("%9.9s %9.9s %9.9s %9.9s", 220 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 221 printf(" %9.9s %9.9s %9.9s %9.9s\n", 222 "BioR Hits", "Misses", "BioW Hits", "Misses"); 223 printf("%9d %9d %9d %9d", 224 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 225 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 226 printf(" %9d %9d %9d %9d\n", 227 nfsstats.biocache_reads-nfsstats.read_bios, 228 nfsstats.read_bios, 229 nfsstats.biocache_writes-nfsstats.write_bios, 230 nfsstats.write_bios); 231 printf("%9.9s %9.9s %9.9s %9.9s", 232 "BioRLHits", "Misses", "BioD Hits", "Misses"); 233 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 234 printf("%9d %9d %9d %9d", 235 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 236 nfsstats.readlink_bios, 237 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 238 nfsstats.readdir_bios); 239 printf(" %9d %9d\n", 240 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 241 printf("\nServer Info:\n"); 242 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 243 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 244 "Write", "Create", "Remove"); 245 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 246 nfsstats.srvrpccnt[1], 247 nfsstats.srvrpccnt[2], 248 nfsstats.srvrpccnt[4], 249 nfsstats.srvrpccnt[5], 250 nfsstats.srvrpccnt[6], 251 nfsstats.srvrpccnt[8], 252 nfsstats.srvrpccnt[9], 253 nfsstats.srvrpccnt[10]); 254 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 255 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 256 "Readdir", "Statfs"); 257 printf("%9d %9d %9d %9d %9d %9d %9d\n", 258 nfsstats.srvrpccnt[11], 259 nfsstats.srvrpccnt[12], 260 nfsstats.srvrpccnt[13], 261 nfsstats.srvrpccnt[14], 262 nfsstats.srvrpccnt[15], 263 nfsstats.srvrpccnt[16], 264 nfsstats.srvrpccnt[17]); 265 printf("Server Ret-Failed\n"); 266 printf("%17d\n", nfsstats.srvrpc_errs); 267 printf("Server Faults\n"); 268 printf("%13d\n", nfsstats.srv_errs); 269 printf("Server Cache Stats:\n"); 270 printf("%9.9s %9.9s %9.9s %9.9s\n", 271 "Inprog", "Idem", "Non-idem", "Misses"); 272 printf("%9d %9d %9d %9d\n", 273 nfsstats.srvcache_inproghits, 274 nfsstats.srvcache_idemdonehits, 275 nfsstats.srvcache_nonidemdonehits, 276 nfsstats.srvcache_misses); 277 } 278 279 u_char signalled; /* set if alarm goes off "early" */ 280 281 /* 282 * Print a running summary of nfs statistics. 283 * Repeat display every interval seconds, showing statistics 284 * collected over that interval. Assumes that interval is non-zero. 285 * First line printed at top of screen is always cumulative. 286 */ 287 void 288 sidewaysintpr(interval, off) 289 u_int interval; 290 off_t off; 291 { 292 struct nfsstats nfsstats, lastst; 293 int hdrcnt, oldmask; 294 void catchalarm(); 295 296 klseek(kmem, off, 0L); 297 298 (void)signal(SIGALRM, catchalarm); 299 signalled = 0; 300 (void)alarm(interval); 301 bzero((caddr_t)&lastst, sizeof(lastst)); 302 303 for (hdrcnt = 1;;) { 304 if (!--hdrcnt) { 305 printhdr(); 306 hdrcnt = 20; 307 } 308 klseek(kmem, off, 0L); 309 read(kmem, (char *)&nfsstats, sizeof nfsstats); 310 printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", 311 nfsstats.rpccnt[1]-lastst.rpccnt[1], 312 nfsstats.rpccnt[4]-lastst.rpccnt[4], 313 nfsstats.rpccnt[5]-lastst.rpccnt[5], 314 nfsstats.rpccnt[6]-lastst.rpccnt[6], 315 nfsstats.rpccnt[8]-lastst.rpccnt[8], 316 nfsstats.rpccnt[11]-lastst.rpccnt[11], 317 nfsstats.rpccnt[12]-lastst.rpccnt[12], 318 nfsstats.rpccnt[16]-lastst.rpccnt[16]); 319 printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", 320 nfsstats.srvrpccnt[1]-lastst.srvrpccnt[1], 321 nfsstats.srvrpccnt[4]-lastst.srvrpccnt[4], 322 nfsstats.srvrpccnt[5]-lastst.srvrpccnt[5], 323 nfsstats.srvrpccnt[6]-lastst.srvrpccnt[6], 324 nfsstats.srvrpccnt[8]-lastst.srvrpccnt[8], 325 nfsstats.srvrpccnt[11]-lastst.srvrpccnt[11], 326 nfsstats.srvrpccnt[12]-lastst.srvrpccnt[12], 327 nfsstats.srvrpccnt[16]-lastst.srvrpccnt[16]); 328 lastst = nfsstats; 329 fflush(stdout); 330 oldmask = sigblock(sigmask(SIGALRM)); 331 if (!signalled) 332 sigpause(0); 333 sigsetmask(oldmask); 334 signalled = 0; 335 (void)alarm(interval); 336 } 337 /*NOTREACHED*/ 338 } 339 340 void 341 printhdr() 342 { 343 printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", 344 "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", 345 "Link", "Readdir"); 346 fflush(stdout); 347 } 348 349 /* 350 * Called if an interval expires before sidewaysintpr has completed a loop. 351 * Sets a flag to not wait for the alarm. 352 */ 353 void 354 catchalarm() 355 { 356 signalled = 1; 357 } 358 359 /* 360 * Seek into the kernel for a value. 361 */ 362 off_t 363 klseek(fd, base, off) 364 int fd, off; 365 off_t base; 366 { 367 #ifndef NEWVM 368 if (kflag) { 369 /* get kernel pte */ 370 base &= ~KERNBASE; 371 base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET); 372 } 373 #endif 374 return (lseek(fd, base, off)); 375 } 376 377 void 378 usage() 379 { 380 (void)fprintf(stderr, 381 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 382 exit(1); 383 } 384