Annotation of src/usr.bin/nfsstat/nfsstat.c, Revision 1.34
1.34 ! deraadt 1: /* $OpenBSD: nfsstat.c,v 1.33 2009/10/27 23:59:40 deraadt Exp $ */
1.2 niklas 2: /* $NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $ */
3:
1.1 deraadt 4: /*
5: * Copyright (c) 1983, 1989, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Rick Macklem at The University of Guelph.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
1.18 millert 19: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: */
35:
1.34 ! deraadt 36: #include <sys/types.h>
1.1 deraadt 37: #include <sys/mount.h>
1.2 niklas 38: #include <sys/sysctl.h>
39: #include <nfs/rpcv2.h>
40: #include <nfs/nfsproto.h>
1.1 deraadt 41: #include <nfs/nfs.h>
42: #include <signal.h>
1.9 mickey 43: #include <fcntl.h>
44: #include <ctype.h>
1.1 deraadt 45: #include <errno.h>
1.9 mickey 46: #include <kvm.h>
47: #include <nlist.h>
1.1 deraadt 48: #include <unistd.h>
49: #include <stdio.h>
50: #include <stdlib.h>
51: #include <string.h>
1.9 mickey 52: #include <limits.h>
53: #include <paths.h>
1.2 niklas 54: #include <err.h>
1.1 deraadt 55:
1.4 kstailey 56: #define SHOW_SERVER 0x01
57: #define SHOW_CLIENT 0x02
58: #define SHOW_ALL (SHOW_SERVER | SHOW_CLIENT)
59:
1.9 mickey 60: struct nlist nl[] = {
61: #define N_NFSSTAT 0
62: { "_nfsstats" },
63: { "" },
64: };
65: kvm_t *kd;
1.12 millert 66: volatile sig_atomic_t signalled; /* set if alarm goes off "early" */
1.8 mickey 67: int nfs_id;
1.1 deraadt 68:
1.13 millert 69: void getnfsstats(struct nfsstats *);
70: void printhdr(void);
71: void intpr(u_int);
72: void sidewaysintpr(u_int, u_int);
73: void usage(void);
1.21 deraadt 74: void catchalarm(int);
1.1 deraadt 75:
1.8 mickey 76: int
1.19 deraadt 77: main(int argc, char *argv[])
1.1 deraadt 78: {
1.29 deraadt 79: u_int interval, display = SHOW_ALL;
1.1 deraadt 80: extern int optind;
81: extern char *optarg;
1.9 mickey 82: char *memf, *nlistf;
1.29 deraadt 83: const char *errstr;
1.1 deraadt 84: int ch;
85:
86: interval = 0;
1.9 mickey 87: memf = nlistf = NULL;
1.22 tedu 88: while ((ch = getopt(argc, argv, "cM:N:sw:")) != -1)
1.1 deraadt 89: switch(ch) {
90: case 'M':
1.9 mickey 91: memf = optarg;
92: break;
1.1 deraadt 93: case 'N':
1.9 mickey 94: nlistf = optarg;
1.1 deraadt 95: break;
96: case 'w':
1.29 deraadt 97: interval = (u_int)strtonum(optarg, 0, 1000, &errstr);
98: if (errstr)
99: errx(1, "invalid interval %s: %s",
100: optarg, errstr);
1.1 deraadt 101: break;
1.4 kstailey 102: case 's':
103: display = SHOW_SERVER;
104: break;
105: case 'c':
106: display = SHOW_CLIENT;
107: break;
1.1 deraadt 108: case '?':
109: default:
110: usage();
111: }
112: argc -= optind;
113: argv += optind;
114:
1.9 mickey 115: #define BACKWARD_COMPATIBILITY
116: #ifdef BACKWARD_COMPATIBILITY
117: if (*argv) {
1.29 deraadt 118: interval = (u_int)strtonum(*argv, 0, 1000, &errstr);
119: if (errstr)
120: errx(1, "invalid interval %s: %s", *argv, errstr);
1.9 mickey 121: if (*++argv) {
122: nlistf = *argv;
123: if (*++argv)
124: memf = *argv;
125: }
126: }
127: #endif
128: if (nlistf || memf) {
129: char errbuf[_POSIX2_LINE_MAX];
130:
131: if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0)
132: errx(1, "nfsstat: %s", errbuf);
133: if (kvm_nlist(kd, nl) != 0)
134: errx(1, "kvm_nlist: can't get names");
135: } else {
1.17 millert 136: int mib[4];
1.8 mickey 137: size_t len;
138:
139: mib[0] = CTL_VFS;
140: mib[1] = VFS_GENERIC;
141: mib[2] = VFS_MAXTYPENUM;
142: len = sizeof(nfs_id);
143: if (sysctl(mib, 3, &nfs_id, &len, NULL, 0))
144: err(1, "sysctl: VFS_MAXTYPENUM");
145:
1.16 millert 146: for (; nfs_id; nfs_id--) {
1.8 mickey 147: struct vfsconf vfsc;
148:
149: mib[0] = CTL_VFS;
150: mib[1] = VFS_GENERIC;
151: mib[2] = VFS_CONF;
152: mib[3] = nfs_id;
153:
154: len = sizeof(vfsc);
155: if (sysctl(mib, 4, &vfsc, &len, NULL, 0))
156: continue;
157:
158: if (!strcmp(vfsc.vfc_name, MOUNT_NFS))
159: break;
1.16 millert 160: }
161: if (nfs_id == 0)
1.8 mickey 162: errx(1, "cannot find nfs filesystem id");
163: }
164:
165: if (interval)
166: sidewaysintpr(interval, display);
167: else
168: intpr(display);
169:
170: return 0;
171: }
172:
173: void
1.19 deraadt 174: getnfsstats(struct nfsstats *p)
1.8 mickey 175: {
1.9 mickey 176: if (kd) {
177: if (kvm_read(kd, nl[N_NFSSTAT].n_value, p, sizeof(*p)) != sizeof(*p))
178: errx(1, "kvm_read failed");
179: } else {
180: int mib[3];
181: size_t len = sizeof(*p);
1.1 deraadt 182:
1.9 mickey 183: mib[0] = CTL_VFS;
184: mib[1] = nfs_id; /* 2 */
185: mib[2] = NFS_NFSSTATS;
1.1 deraadt 186:
1.9 mickey 187: if (sysctl(mib, 3, p, &len, NULL, 0))
188: err(1, "sysctl");
189: }
1.1 deraadt 190: }
191:
192: /*
193: * Print a description of the nfs stats.
194: */
1.9 mickey 195: void
1.19 deraadt 196: intpr(u_int display)
1.1 deraadt 197: {
198: struct nfsstats nfsstats;
199:
1.8 mickey 200: getnfsstats(&nfsstats);
201:
1.4 kstailey 202: if (display & SHOW_CLIENT) {
203: printf("Client Info:\n");
204: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 205: "Getattr", "Setattr", "Lookup", "Readlink", "Read",
206: "Write", "Create", "Remove");
1.28 millert 207: printf("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 208: nfsstats.rpccnt[NFSPROC_GETATTR],
209: nfsstats.rpccnt[NFSPROC_SETATTR],
210: nfsstats.rpccnt[NFSPROC_LOOKUP],
211: nfsstats.rpccnt[NFSPROC_READLINK],
212: nfsstats.rpccnt[NFSPROC_READ],
213: nfsstats.rpccnt[NFSPROC_WRITE],
214: nfsstats.rpccnt[NFSPROC_CREATE],
215: nfsstats.rpccnt[NFSPROC_REMOVE]);
1.4 kstailey 216: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 217: "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
218: "Readdir", "RdirPlus", "Access");
1.28 millert 219: printf("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 220: nfsstats.rpccnt[NFSPROC_RENAME],
221: nfsstats.rpccnt[NFSPROC_LINK],
222: nfsstats.rpccnt[NFSPROC_SYMLINK],
223: nfsstats.rpccnt[NFSPROC_MKDIR],
224: nfsstats.rpccnt[NFSPROC_RMDIR],
225: nfsstats.rpccnt[NFSPROC_READDIR],
226: nfsstats.rpccnt[NFSPROC_READDIRPLUS],
227: nfsstats.rpccnt[NFSPROC_ACCESS]);
1.11 markus 228: printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 229: "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit");
1.28 millert 230: printf("%9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 231: nfsstats.rpccnt[NFSPROC_MKNOD],
232: nfsstats.rpccnt[NFSPROC_FSSTAT],
233: nfsstats.rpccnt[NFSPROC_FSINFO],
234: nfsstats.rpccnt[NFSPROC_PATHCONF],
235: nfsstats.rpccnt[NFSPROC_COMMIT]);
1.4 kstailey 236: printf("Rpc Info:\n");
1.30 thib 237: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
238: "TimedOut", "Invalid", "X Replies", "Retries", "Requests",
239: "FrcSync");
240: printf("%9llu %9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 241: nfsstats.rpctimeouts,
242: nfsstats.rpcinvalid,
243: nfsstats.rpcunexpected,
244: nfsstats.rpcretries,
1.30 thib 245: nfsstats.rpcrequests,
246: nfsstats.forcedsync);
1.4 kstailey 247: printf("Cache Info:\n");
248: printf("%9.9s %9.9s %9.9s %9.9s",
1.23 deraadt 249: "Attr Hits", "Misses", "Lkup Hits", "Misses");
1.4 kstailey 250: printf(" %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 251: "BioR Hits", "Misses", "BioW Hits", "Misses");
1.28 millert 252: printf("%9llu %9llu %9llu %9llu",
1.23 deraadt 253: nfsstats.attrcache_hits, nfsstats.attrcache_misses,
254: nfsstats.lookupcache_hits, nfsstats.lookupcache_misses);
1.28 millert 255: printf(" %9llu %9llu %9llu %9llu\n",
1.23 deraadt 256: nfsstats.biocache_reads-nfsstats.read_bios,
257: nfsstats.read_bios,
258: nfsstats.biocache_writes-nfsstats.write_bios,
259: nfsstats.write_bios);
1.4 kstailey 260: printf("%9.9s %9.9s %9.9s %9.9s",
1.23 deraadt 261: "BioRLHits", "Misses", "BioD Hits", "Misses");
1.4 kstailey 262: printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
1.28 millert 263: printf("%9llu %9llu %9llu %9llu",
1.23 deraadt 264: nfsstats.biocache_readlinks-nfsstats.readlink_bios,
265: nfsstats.readlink_bios,
266: nfsstats.biocache_readdirs-nfsstats.readdir_bios,
267: nfsstats.readdir_bios);
1.28 millert 268: printf(" %9llu %9llu\n",
1.23 deraadt 269: nfsstats.direofcache_hits, nfsstats.direofcache_misses);
1.4 kstailey 270: }
1.25 pedro 271:
272: if (display == SHOW_ALL)
273: printf("\n");
274:
1.4 kstailey 275: if (display & SHOW_SERVER) {
1.25 pedro 276: printf("Server Info:\n");
1.4 kstailey 277: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 278: "Getattr", "Setattr", "Lookup", "Readlink", "Read",
279: "Write", "Create", "Remove");
1.28 millert 280: printf("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 281: nfsstats.srvrpccnt[NFSPROC_GETATTR],
282: nfsstats.srvrpccnt[NFSPROC_SETATTR],
283: nfsstats.srvrpccnt[NFSPROC_LOOKUP],
284: nfsstats.srvrpccnt[NFSPROC_READLINK],
285: nfsstats.srvrpccnt[NFSPROC_READ],
286: nfsstats.srvrpccnt[NFSPROC_WRITE],
287: nfsstats.srvrpccnt[NFSPROC_CREATE],
288: nfsstats.srvrpccnt[NFSPROC_REMOVE]);
1.4 kstailey 289: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 290: "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
291: "Readdir", "RdirPlus", "Access");
1.28 millert 292: printf("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 293: nfsstats.srvrpccnt[NFSPROC_RENAME],
294: nfsstats.srvrpccnt[NFSPROC_LINK],
295: nfsstats.srvrpccnt[NFSPROC_SYMLINK],
296: nfsstats.srvrpccnt[NFSPROC_MKDIR],
297: nfsstats.srvrpccnt[NFSPROC_RMDIR],
298: nfsstats.srvrpccnt[NFSPROC_READDIR],
299: nfsstats.srvrpccnt[NFSPROC_READDIRPLUS],
300: nfsstats.srvrpccnt[NFSPROC_ACCESS]);
1.11 markus 301: printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 302: "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit");
1.28 millert 303: printf("%9llu %9llu %9llu %9llu %9llu\n",
1.23 deraadt 304: nfsstats.srvrpccnt[NFSPROC_MKNOD],
305: nfsstats.srvrpccnt[NFSPROC_FSSTAT],
306: nfsstats.srvrpccnt[NFSPROC_FSINFO],
307: nfsstats.srvrpccnt[NFSPROC_PATHCONF],
308: nfsstats.srvrpccnt[NFSPROC_COMMIT]);
1.4 kstailey 309: printf("Server Ret-Failed\n");
1.28 millert 310: printf("%17llu\n", nfsstats.srvrpc_errs);
1.4 kstailey 311: printf("Server Faults\n");
1.28 millert 312: printf("%13llu\n", nfsstats.srv_errs);
1.4 kstailey 313: printf("Server Cache Stats:\n");
314: printf("%9.9s %9.9s %9.9s %9.9s\n",
1.23 deraadt 315: "Inprog", "Idem", "Non-idem", "Misses");
1.28 millert 316: printf("%9llu %9llu %9llu %9llu\n",
1.23 deraadt 317: nfsstats.srvcache_inproghits,
318: nfsstats.srvcache_idemdonehits,
319: nfsstats.srvcache_nonidemdonehits,
320: nfsstats.srvcache_misses);
1.4 kstailey 321: printf("Server Write Gathering:\n");
322: printf("%9.9s %9.9s %9.9s\n",
1.23 deraadt 323: "WriteOps", "WriteRPC", "Opsaved");
1.28 millert 324: printf("%9llu %9llu %9llu\n",
1.23 deraadt 325: nfsstats.srvvop_writes,
326: nfsstats.srvrpccnt[NFSPROC_WRITE],
327: nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes);
1.4 kstailey 328: }
1.1 deraadt 329: }
330:
331: /*
332: * Print a running summary of nfs statistics.
333: * Repeat display every interval seconds, showing statistics
334: * collected over that interval. Assumes that interval is non-zero.
335: * First line printed at top of screen is always cumulative.
336: */
1.9 mickey 337: void
1.19 deraadt 338: sidewaysintpr(u_int interval, u_int display)
1.1 deraadt 339: {
340: struct nfsstats nfsstats, lastst;
1.12 millert 341: int hdrcnt;
342: sigset_t emptyset;
1.1 deraadt 343:
344: (void)signal(SIGALRM, catchalarm);
345: signalled = 0;
346: (void)alarm(interval);
1.29 deraadt 347: bzero(&lastst, sizeof(lastst));
1.1 deraadt 348:
349: for (hdrcnt = 1;;) {
350: if (!--hdrcnt) {
351: printhdr();
352: hdrcnt = 20;
353: }
1.8 mickey 354:
355: getnfsstats(&nfsstats);
356:
1.4 kstailey 357: if (display & SHOW_CLIENT)
1.27 deraadt 358: printf("Client: "
359: "%8llu %8llu %8llu %8llu %8llu %8llu %8llu %8llu\n",
360: nfsstats.rpccnt[NFSPROC_GETATTR] -
361: lastst.rpccnt[NFSPROC_GETATTR],
362: nfsstats.rpccnt[NFSPROC_LOOKUP] -
363: lastst.rpccnt[NFSPROC_LOOKUP],
364: nfsstats.rpccnt[NFSPROC_READLINK] -
365: lastst.rpccnt[NFSPROC_READLINK],
366: nfsstats.rpccnt[NFSPROC_READ] -
367: lastst.rpccnt[NFSPROC_READ],
368: nfsstats.rpccnt[NFSPROC_WRITE] -
369: lastst.rpccnt[NFSPROC_WRITE],
370: nfsstats.rpccnt[NFSPROC_RENAME] -
371: lastst.rpccnt[NFSPROC_RENAME],
372: nfsstats.rpccnt[NFSPROC_ACCESS] -
373: lastst.rpccnt[NFSPROC_ACCESS],
374: (nfsstats.rpccnt[NFSPROC_READDIR] -
375: lastst.rpccnt[NFSPROC_READDIR]) +
376: (nfsstats.rpccnt[NFSPROC_READDIRPLUS] -
377: lastst.rpccnt[NFSPROC_READDIRPLUS]));
1.4 kstailey 378: if (display & SHOW_SERVER)
1.27 deraadt 379: printf("Server: "
380: "%8llu %8llu %8llu %8llu %8llu %8llu %8llu %8llu\n",
381: nfsstats.srvrpccnt[NFSPROC_GETATTR] -
382: lastst.srvrpccnt[NFSPROC_GETATTR],
383: nfsstats.srvrpccnt[NFSPROC_LOOKUP] -
384: lastst.srvrpccnt[NFSPROC_LOOKUP],
385: nfsstats.srvrpccnt[NFSPROC_READLINK] -
386: lastst.srvrpccnt[NFSPROC_READLINK],
387: nfsstats.srvrpccnt[NFSPROC_READ] -
388: lastst.srvrpccnt[NFSPROC_READ],
389: nfsstats.srvrpccnt[NFSPROC_WRITE] -
390: lastst.srvrpccnt[NFSPROC_WRITE],
391: nfsstats.srvrpccnt[NFSPROC_RENAME] -
392: lastst.srvrpccnt[NFSPROC_RENAME],
393: nfsstats.srvrpccnt[NFSPROC_ACCESS] -
394: lastst.srvrpccnt[NFSPROC_ACCESS],
395: (nfsstats.srvrpccnt[NFSPROC_READDIR] -
396: lastst.srvrpccnt[NFSPROC_READDIR]) +
397: (nfsstats.srvrpccnt[NFSPROC_READDIRPLUS] -
398: lastst.srvrpccnt[NFSPROC_READDIRPLUS]));
1.1 deraadt 399: lastst = nfsstats;
400: fflush(stdout);
1.12 millert 401: sigemptyset(&emptyset);
1.1 deraadt 402: if (!signalled)
1.12 millert 403: sigsuspend(&emptyset);
1.1 deraadt 404: signalled = 0;
405: (void)alarm(interval);
406: }
407: /*NOTREACHED*/
408: }
409:
1.9 mickey 410: void
1.19 deraadt 411: printhdr(void)
1.1 deraadt 412: {
413: printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n",
414: "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename",
1.2 niklas 415: "Access", "Readdir");
1.1 deraadt 416: fflush(stdout);
417: }
418:
419: /*
420: * Called if an interval expires before sidewaysintpr has completed a loop.
421: * Sets a flag to not wait for the alarm.
422: */
1.24 deraadt 423: /* ARGSUSED */
1.1 deraadt 424: void
1.20 deraadt 425: catchalarm(int signo)
1.1 deraadt 426: {
427: signalled = 1;
428: }
429:
1.9 mickey 430: void
1.19 deraadt 431: usage(void)
1.1 deraadt 432: {
1.8 mickey 433: extern char *__progname;
1.22 tedu 434:
1.31 sobrado 435: fprintf(stderr, "usage: %s [-cs] [-M core] [-N system] [-w wait]\n",
1.9 mickey 436: __progname);
1.1 deraadt 437: exit(1);
438: }
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