nfsstat.c revision 1.1
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[] = "@(#)nfsstat.c 5.9 (Berkeley) 7/1/91"; 45 #endif /* not lint */ 46 47 #include <sys/param.h> 48 #if BSD >= 199103 49 #define NEWVM 50 #endif 51 #ifndef NEWVM 52 #include <sys/vmmac.h> 53 #include <machine/pte.h> 54 #endif 55 #include <sys/mount.h> 56 #include <nfs/nfsv2.h> 57 #include <nfs/nfs.h> 58 #include <signal.h> 59 #include <fcntl.h> 60 #include <ctype.h> 61 #include <errno.h> 62 #include <nlist.h> 63 #include <unistd.h> 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <paths.h> 68 69 struct nlist nl[] = { 70 #define N_NFSSTAT 0 71 { "_nfsstats" }, 72 #ifndef NEWVM 73 #define N_SYSMAP 1 74 { "_Sysmap" }, 75 #define N_SYSSIZE 2 76 { "_Syssize" }, 77 #endif 78 "", 79 }; 80 81 #ifndef NEWVM 82 struct pte *Sysmap; 83 #endif 84 85 int kflag, kmem; 86 char *kernel = _PATH_UNIX; 87 char *kmemf = _PATH_KMEM; 88 89 off_t klseek(); 90 void intpr(), printhdr(), sidewaysintpr(), usage(); 91 92 main(argc, argv) 93 int argc; 94 char **argv; 95 { 96 extern int optind; 97 extern char *optarg; 98 u_int interval; 99 int ch; 100 101 interval = 0; 102 while ((ch = getopt(argc, argv, "M:N:w:")) != EOF) 103 switch(ch) { 104 case 'M': 105 kmemf = optarg; 106 kflag = 1; 107 break; 108 case 'N': 109 kernel = optarg; 110 break; 111 case 'w': 112 interval = atoi(optarg); 113 break; 114 case '?': 115 default: 116 usage(); 117 } 118 argc -= optind; 119 argv += optind; 120 121 #define BACKWARD_COMPATIBILITY 122 #ifdef BACKWARD_COMPATIBILITY 123 if (*argv) { 124 kernel = *++argv; 125 if (*++argv) { 126 kmemf = *argv; 127 kflag = 1; 128 } 129 } 130 #endif 131 if (nlist(kernel, nl) < 0 || nl[0].n_type == 0) { 132 (void)fprintf(stderr, "nfsstate: %s: no namelist\n", kernel); 133 exit(1); 134 } 135 kmem = open(kmemf, O_RDONLY); 136 if (kmem < 0) { 137 (void)fprintf(stderr, 138 "nfsstat: %s: %s\n", kmemf, strerror(errno)); 139 exit(1); 140 } 141 if (kflag) { 142 #ifdef NEWVM 143 (void)fprintf(stderr, "nfsstat: can't do core files yet\n"); 144 exit(1); 145 #else 146 off_t off; 147 148 Sysmap = (struct pte *) 149 malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 150 if (!Sysmap) { 151 (void)fprintf(stderr, "nfsstat: %s\n", strerror(errno)); 152 exit(1); 153 } 154 off = nl[N_SYSMAP].n_value & ~KERNBASE; 155 (void)lseek(kmem, off, L_SET); 156 (void)read(kmem, (char *)Sysmap, 157 (int)(nl[N_SYSSIZE].n_value * sizeof(struct pte))); 158 #endif 159 } 160 161 if (!nl[N_NFSSTAT].n_value) { 162 (void)fprintf(stderr, "nfsstat: nfsstats symbol not defined\n"); 163 exit(1); 164 } 165 if (interval) 166 sidewaysintpr(interval, nl[N_NFSSTAT].n_value); 167 else 168 intpr(nl[N_NFSSTAT].n_value); 169 exit(0); 170 } 171 172 /* 173 * Print a description of the network interfaces. 174 */ 175 void 176 intpr(nfsstataddr) 177 off_t nfsstataddr; 178 { 179 struct nfsstats nfsstats; 180 181 klseek(kmem, nfsstataddr, 0L); 182 read(kmem, (char *)&nfsstats, sizeof(struct nfsstats)); 183 printf("Client Info:\n"); 184 printf("Rpc Counts:\n"); 185 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 186 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 187 "Write", "Create", "Remove"); 188 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 189 nfsstats.rpccnt[1], 190 nfsstats.rpccnt[2], 191 nfsstats.rpccnt[4], 192 nfsstats.rpccnt[5], 193 nfsstats.rpccnt[6], 194 nfsstats.rpccnt[8], 195 nfsstats.rpccnt[9], 196 nfsstats.rpccnt[10]); 197 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 198 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 199 "Readdir", "Statfs"); 200 printf("%9d %9d %9d %9d %9d %9d %9d\n", 201 nfsstats.rpccnt[11], 202 nfsstats.rpccnt[12], 203 nfsstats.rpccnt[13], 204 nfsstats.rpccnt[14], 205 nfsstats.rpccnt[15], 206 nfsstats.rpccnt[16], 207 nfsstats.rpccnt[17]); 208 printf("Rpc Info:\n"); 209 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", 210 "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); 211 printf("%9d %9d %9d %9d %9d\n", 212 nfsstats.rpctimeouts, 213 nfsstats.rpcinvalid, 214 nfsstats.rpcunexpected, 215 nfsstats.rpcretries, 216 nfsstats.rpcrequests); 217 printf("Cache Info:\n"); 218 printf("%9.9s %9.9s %9.9s %9.9s", 219 "Attr Hits", "Misses", "Lkup Hits", "Misses"); 220 printf(" %9.9s %9.9s %9.9s %9.9s\n", 221 "BioR Hits", "Misses", "BioW Hits", "Misses"); 222 printf("%9d %9d %9d %9d", 223 nfsstats.attrcache_hits, nfsstats.attrcache_misses, 224 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); 225 printf(" %9d %9d %9d %9d\n", 226 nfsstats.biocache_reads-nfsstats.read_bios, 227 nfsstats.read_bios, 228 nfsstats.biocache_writes-nfsstats.write_bios, 229 nfsstats.write_bios); 230 printf("%9.9s %9.9s %9.9s %9.9s", 231 "BioRLHits", "Misses", "BioD Hits", "Misses"); 232 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); 233 printf("%9d %9d %9d %9d", 234 nfsstats.biocache_readlinks-nfsstats.readlink_bios, 235 nfsstats.readlink_bios, 236 nfsstats.biocache_readdirs-nfsstats.readdir_bios, 237 nfsstats.readdir_bios); 238 printf(" %9d %9d\n", 239 nfsstats.direofcache_hits, nfsstats.direofcache_misses); 240 printf("\nServer Info:\n"); 241 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 242 "Getattr", "Setattr", "Lookup", "Readlink", "Read", 243 "Write", "Create", "Remove"); 244 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", 245 nfsstats.srvrpccnt[1], 246 nfsstats.srvrpccnt[2], 247 nfsstats.srvrpccnt[4], 248 nfsstats.srvrpccnt[5], 249 nfsstats.srvrpccnt[6], 250 nfsstats.srvrpccnt[8], 251 nfsstats.srvrpccnt[9], 252 nfsstats.srvrpccnt[10]); 253 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", 254 "Rename", "Link", "Symlink", "Mkdir", "Rmdir", 255 "Readdir", "Statfs"); 256 printf("%9d %9d %9d %9d %9d %9d %9d\n", 257 nfsstats.srvrpccnt[11], 258 nfsstats.srvrpccnt[12], 259 nfsstats.srvrpccnt[13], 260 nfsstats.srvrpccnt[14], 261 nfsstats.srvrpccnt[15], 262 nfsstats.srvrpccnt[16], 263 nfsstats.srvrpccnt[17]); 264 printf("Server Ret-Failed\n"); 265 printf("%17d\n", nfsstats.srvrpc_errs); 266 printf("Server Faults\n"); 267 printf("%13d\n", nfsstats.srv_errs); 268 printf("Server Cache Stats:\n"); 269 printf("%9.9s %9.9s %9.9s %9.9s\n", 270 "Inprog", "Idem", "Non-idem", "Misses"); 271 printf("%9d %9d %9d %9d\n", 272 nfsstats.srvcache_inproghits, 273 nfsstats.srvcache_idemdonehits, 274 nfsstats.srvcache_nonidemdonehits, 275 nfsstats.srvcache_misses); 276 } 277 278 u_char signalled; /* set if alarm goes off "early" */ 279 280 /* 281 * Print a running summary of nfs statistics. 282 * Repeat display every interval seconds, showing statistics 283 * collected over that interval. Assumes that interval is non-zero. 284 * First line printed at top of screen is always cumulative. 285 */ 286 void 287 sidewaysintpr(interval, off) 288 u_int interval; 289 off_t off; 290 { 291 struct nfsstats nfsstats, lastst; 292 int hdrcnt, oldmask; 293 void catchalarm(); 294 295 klseek(kmem, off, 0L); 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 klseek(kmem, off, 0L); 308 read(kmem, (char *)&nfsstats, sizeof 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 /* 359 * Seek into the kernel for a value. 360 */ 361 off_t 362 klseek(fd, base, off) 363 int fd, off; 364 off_t base; 365 { 366 #ifndef NEWVM 367 if (kflag) { 368 /* get kernel pte */ 369 base &= ~KERNBASE; 370 base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET); 371 } 372 #endif 373 return (lseek(fd, base, off)); 374 } 375 376 void 377 usage() 378 { 379 (void)fprintf(stderr, 380 "usage: nfsstat [-M core] [-N system] [-w interval]\n"); 381 exit(1); 382 } 383
Indexes created Tue Sep 23 20:09:58 GMT 2025