Annotation of src/usr.bin/nfsstat/nfsstat.c, Revision 1.22
1.22 ! tedu 1: /* $OpenBSD: nfsstat.c,v 1.21 2003/07/07 21:36:52 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:
36: #ifndef lint
37: static char copyright[] =
38: "@(#) Copyright (c) 1983, 1989, 1993\n\
39: The Regents of the University of California. All rights reserved.\n";
40: #endif /* not lint */
41:
42: #ifndef lint
1.2 niklas 43: #if 0
44: static char sccsid[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93";
45: static char *rcsid = "$NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $";
46: #else
1.22 ! tedu 47: static char *rcsid = "$OpenBSD: nfsstat.c,v 1.21 2003/07/07 21:36:52 deraadt Exp $";
1.2 niklas 48: #endif
1.1 deraadt 49: #endif /* not lint */
50:
51: #include <sys/param.h>
52: #include <sys/mount.h>
1.2 niklas 53: #include <sys/sysctl.h>
54: #include <nfs/rpcv2.h>
55: #include <nfs/nfsproto.h>
1.1 deraadt 56: #include <nfs/nfs.h>
57: #include <signal.h>
1.9 mickey 58: #include <fcntl.h>
59: #include <ctype.h>
1.1 deraadt 60: #include <errno.h>
1.9 mickey 61: #include <kvm.h>
62: #include <nlist.h>
1.1 deraadt 63: #include <unistd.h>
64: #include <stdio.h>
65: #include <stdlib.h>
66: #include <string.h>
1.9 mickey 67: #include <limits.h>
68: #include <paths.h>
1.2 niklas 69: #include <err.h>
1.1 deraadt 70:
1.4 kstailey 71: #define SHOW_SERVER 0x01
72: #define SHOW_CLIENT 0x02
73: #define SHOW_ALL (SHOW_SERVER | SHOW_CLIENT)
74:
1.9 mickey 75: struct nlist nl[] = {
76: #define N_NFSSTAT 0
77: { "_nfsstats" },
78: { "" },
79: };
80: kvm_t *kd;
1.12 millert 81: volatile sig_atomic_t signalled; /* set if alarm goes off "early" */
1.8 mickey 82: int nfs_id;
1.1 deraadt 83:
1.13 millert 84: void getnfsstats(struct nfsstats *);
85: void printhdr(void);
86: void intpr(u_int);
87: void sidewaysintpr(u_int, u_int);
88: void usage(void);
1.21 deraadt 89: void catchalarm(int);
1.1 deraadt 90:
1.8 mickey 91: int
1.19 deraadt 92: main(int argc, char *argv[])
1.1 deraadt 93: {
94: extern int optind;
95: extern char *optarg;
1.8 mickey 96: char *p;
1.1 deraadt 97: u_int interval;
1.4 kstailey 98: u_int display = SHOW_ALL;
1.9 mickey 99: char *memf, *nlistf;
1.1 deraadt 100: int ch;
101:
102: interval = 0;
1.9 mickey 103: memf = nlistf = NULL;
1.22 ! tedu 104: while ((ch = getopt(argc, argv, "cM:N:sw:")) != -1)
1.1 deraadt 105: switch(ch) {
106: case 'M':
1.9 mickey 107: memf = optarg;
108: break;
1.1 deraadt 109: case 'N':
1.9 mickey 110: nlistf = optarg;
1.1 deraadt 111: break;
112: case 'w':
1.8 mickey 113: interval = (u_int)strtol(optarg, &p, 0);
1.10 provos 114: if (*optarg == '\0' || *p != '\0')
1.8 mickey 115: errx(1, "invalid interval");
1.1 deraadt 116: break;
1.4 kstailey 117: case 's':
118: display = SHOW_SERVER;
119: break;
120: case 'c':
121: display = SHOW_CLIENT;
122: break;
1.1 deraadt 123: case '?':
124: default:
125: usage();
126: }
127: argc -= optind;
128: argv += optind;
129:
1.9 mickey 130: #define BACKWARD_COMPATIBILITY
131: #ifdef BACKWARD_COMPATIBILITY
132: if (*argv) {
133: interval = atoi(*argv);
134: if (*++argv) {
135: nlistf = *argv;
136: if (*++argv)
137: memf = *argv;
138: }
139: }
140: #endif
141: if (nlistf || memf) {
142: char errbuf[_POSIX2_LINE_MAX];
143:
144: if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0)
145: errx(1, "nfsstat: %s", errbuf);
146: if (kvm_nlist(kd, nl) != 0)
147: errx(1, "kvm_nlist: can't get names");
148: } else {
1.17 millert 149: int mib[4];
1.8 mickey 150: size_t len;
151:
152: mib[0] = CTL_VFS;
153: mib[1] = VFS_GENERIC;
154: mib[2] = VFS_MAXTYPENUM;
155: len = sizeof(nfs_id);
156: if (sysctl(mib, 3, &nfs_id, &len, NULL, 0))
157: err(1, "sysctl: VFS_MAXTYPENUM");
158:
1.16 millert 159: for (; nfs_id; nfs_id--) {
1.8 mickey 160: struct vfsconf vfsc;
161:
162: mib[0] = CTL_VFS;
163: mib[1] = VFS_GENERIC;
164: mib[2] = VFS_CONF;
165: mib[3] = nfs_id;
166:
167: len = sizeof(vfsc);
168: if (sysctl(mib, 4, &vfsc, &len, NULL, 0))
169: continue;
170:
171: if (!strcmp(vfsc.vfc_name, MOUNT_NFS))
172: break;
1.16 millert 173: }
174: if (nfs_id == 0)
1.8 mickey 175: errx(1, "cannot find nfs filesystem id");
176: }
177:
178: if (interval)
179: sidewaysintpr(interval, display);
180: else
181: intpr(display);
182:
183: return 0;
184: }
185:
186: void
1.19 deraadt 187: getnfsstats(struct nfsstats *p)
1.8 mickey 188: {
1.9 mickey 189: if (kd) {
190: if (kvm_read(kd, nl[N_NFSSTAT].n_value, p, sizeof(*p)) != sizeof(*p))
191: errx(1, "kvm_read failed");
192: } else {
193: int mib[3];
194: size_t len = sizeof(*p);
1.1 deraadt 195:
1.9 mickey 196: mib[0] = CTL_VFS;
197: mib[1] = nfs_id; /* 2 */
198: mib[2] = NFS_NFSSTATS;
1.1 deraadt 199:
1.9 mickey 200: if (sysctl(mib, 3, p, &len, NULL, 0))
201: err(1, "sysctl");
202: }
1.1 deraadt 203: }
204:
205: /*
206: * Print a description of the nfs stats.
207: */
1.9 mickey 208: void
1.19 deraadt 209: intpr(u_int display)
1.1 deraadt 210: {
211: struct nfsstats nfsstats;
212:
1.8 mickey 213: getnfsstats(&nfsstats);
214:
1.4 kstailey 215: if (display & SHOW_CLIENT) {
216: printf("Client Info:\n");
217: printf("Rpc Counts:\n");
218: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
219: "Getattr", "Setattr", "Lookup", "Readlink", "Read",
220: "Write", "Create", "Remove");
221: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
222: nfsstats.rpccnt[NFSPROC_GETATTR],
223: nfsstats.rpccnt[NFSPROC_SETATTR],
224: nfsstats.rpccnt[NFSPROC_LOOKUP],
225: nfsstats.rpccnt[NFSPROC_READLINK],
226: nfsstats.rpccnt[NFSPROC_READ],
227: nfsstats.rpccnt[NFSPROC_WRITE],
228: nfsstats.rpccnt[NFSPROC_CREATE],
229: nfsstats.rpccnt[NFSPROC_REMOVE]);
230: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
231: "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
232: "Readdir", "RdirPlus", "Access");
233: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
234: nfsstats.rpccnt[NFSPROC_RENAME],
235: nfsstats.rpccnt[NFSPROC_LINK],
236: nfsstats.rpccnt[NFSPROC_SYMLINK],
237: nfsstats.rpccnt[NFSPROC_MKDIR],
238: nfsstats.rpccnt[NFSPROC_RMDIR],
239: nfsstats.rpccnt[NFSPROC_READDIR],
240: nfsstats.rpccnt[NFSPROC_READDIRPLUS],
241: nfsstats.rpccnt[NFSPROC_ACCESS]);
1.11 markus 242: printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
243: "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit");
244: printf("%9d %9d %9d %9d %9d\n",
1.4 kstailey 245: nfsstats.rpccnt[NFSPROC_MKNOD],
246: nfsstats.rpccnt[NFSPROC_FSSTAT],
247: nfsstats.rpccnt[NFSPROC_FSINFO],
248: nfsstats.rpccnt[NFSPROC_PATHCONF],
1.11 markus 249: nfsstats.rpccnt[NFSPROC_COMMIT]);
1.4 kstailey 250: printf("Rpc Info:\n");
251: printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
252: "TimedOut", "Invalid", "X Replies", "Retries", "Requests");
253: printf("%9d %9d %9d %9d %9d\n",
254: nfsstats.rpctimeouts,
255: nfsstats.rpcinvalid,
256: nfsstats.rpcunexpected,
257: nfsstats.rpcretries,
258: nfsstats.rpcrequests);
259: printf("Cache Info:\n");
260: printf("%9.9s %9.9s %9.9s %9.9s",
261: "Attr Hits", "Misses", "Lkup Hits", "Misses");
262: printf(" %9.9s %9.9s %9.9s %9.9s\n",
263: "BioR Hits", "Misses", "BioW Hits", "Misses");
264: printf("%9d %9d %9d %9d",
265: nfsstats.attrcache_hits, nfsstats.attrcache_misses,
266: nfsstats.lookupcache_hits, nfsstats.lookupcache_misses);
267: printf(" %9d %9d %9d %9d\n",
268: nfsstats.biocache_reads-nfsstats.read_bios,
269: nfsstats.read_bios,
270: nfsstats.biocache_writes-nfsstats.write_bios,
271: nfsstats.write_bios);
272: printf("%9.9s %9.9s %9.9s %9.9s",
273: "BioRLHits", "Misses", "BioD Hits", "Misses");
274: printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
275: printf("%9d %9d %9d %9d",
276: nfsstats.biocache_readlinks-nfsstats.readlink_bios,
277: nfsstats.readlink_bios,
278: nfsstats.biocache_readdirs-nfsstats.readdir_bios,
279: nfsstats.readdir_bios);
280: printf(" %9d %9d\n",
281: nfsstats.direofcache_hits, nfsstats.direofcache_misses);
282: }
283: if (display & SHOW_SERVER) {
284: printf("\nServer Info:\n");
285: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
286: "Getattr", "Setattr", "Lookup", "Readlink", "Read",
287: "Write", "Create", "Remove");
288: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
289: nfsstats.srvrpccnt[NFSPROC_GETATTR],
290: nfsstats.srvrpccnt[NFSPROC_SETATTR],
291: nfsstats.srvrpccnt[NFSPROC_LOOKUP],
292: nfsstats.srvrpccnt[NFSPROC_READLINK],
293: nfsstats.srvrpccnt[NFSPROC_READ],
294: nfsstats.srvrpccnt[NFSPROC_WRITE],
295: nfsstats.srvrpccnt[NFSPROC_CREATE],
296: nfsstats.srvrpccnt[NFSPROC_REMOVE]);
297: printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
298: "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
299: "Readdir", "RdirPlus", "Access");
300: printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
301: nfsstats.srvrpccnt[NFSPROC_RENAME],
302: nfsstats.srvrpccnt[NFSPROC_LINK],
303: nfsstats.srvrpccnt[NFSPROC_SYMLINK],
304: nfsstats.srvrpccnt[NFSPROC_MKDIR],
305: nfsstats.srvrpccnt[NFSPROC_RMDIR],
306: nfsstats.srvrpccnt[NFSPROC_READDIR],
307: nfsstats.srvrpccnt[NFSPROC_READDIRPLUS],
308: nfsstats.srvrpccnt[NFSPROC_ACCESS]);
1.11 markus 309: printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
310: "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit");
311: printf("%9d %9d %9d %9d %9d\n",
1.4 kstailey 312: nfsstats.srvrpccnt[NFSPROC_MKNOD],
313: nfsstats.srvrpccnt[NFSPROC_FSSTAT],
314: nfsstats.srvrpccnt[NFSPROC_FSINFO],
315: nfsstats.srvrpccnt[NFSPROC_PATHCONF],
1.11 markus 316: nfsstats.srvrpccnt[NFSPROC_COMMIT]);
1.4 kstailey 317: printf("Server Ret-Failed\n");
318: printf("%17d\n", nfsstats.srvrpc_errs);
319: printf("Server Faults\n");
320: printf("%13d\n", nfsstats.srv_errs);
321: printf("Server Cache Stats:\n");
322: printf("%9.9s %9.9s %9.9s %9.9s\n",
323: "Inprog", "Idem", "Non-idem", "Misses");
324: printf("%9d %9d %9d %9d\n",
325: nfsstats.srvcache_inproghits,
326: nfsstats.srvcache_idemdonehits,
327: nfsstats.srvcache_nonidemdonehits,
328: nfsstats.srvcache_misses);
329: printf("Server Write Gathering:\n");
330: printf("%9.9s %9.9s %9.9s\n",
331: "WriteOps", "WriteRPC", "Opsaved");
332: printf("%9d %9d %9d\n",
333: nfsstats.srvvop_writes,
334: nfsstats.srvrpccnt[NFSPROC_WRITE],
335: nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes);
336: }
1.1 deraadt 337: }
338:
339: /*
340: * Print a running summary of nfs statistics.
341: * Repeat display every interval seconds, showing statistics
342: * collected over that interval. Assumes that interval is non-zero.
343: * First line printed at top of screen is always cumulative.
344: */
1.9 mickey 345: void
1.19 deraadt 346: sidewaysintpr(u_int interval, u_int display)
1.1 deraadt 347: {
348: struct nfsstats nfsstats, lastst;
1.12 millert 349: int hdrcnt;
350: sigset_t emptyset;
1.1 deraadt 351:
352: (void)signal(SIGALRM, catchalarm);
353: signalled = 0;
354: (void)alarm(interval);
355: bzero((caddr_t)&lastst, sizeof(lastst));
356:
357: for (hdrcnt = 1;;) {
358: if (!--hdrcnt) {
359: printhdr();
360: hdrcnt = 20;
361: }
1.8 mickey 362:
363: getnfsstats(&nfsstats);
364:
1.4 kstailey 365: if (display & SHOW_CLIENT)
366: printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n",
1.2 niklas 367: nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR],
368: nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP],
369: nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK],
370: nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ],
371: nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE],
372: nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME],
373: nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS],
374: (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR])
375: +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS]));
1.4 kstailey 376: if (display & SHOW_SERVER)
377: printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n",
1.2 niklas 378: nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR],
379: nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP],
380: nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK],
381: nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ],
382: nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE],
383: nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME],
384: nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS],
385: (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR])
386: +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS]));
1.1 deraadt 387: lastst = nfsstats;
388: fflush(stdout);
1.12 millert 389: sigemptyset(&emptyset);
1.1 deraadt 390: if (!signalled)
1.12 millert 391: sigsuspend(&emptyset);
1.1 deraadt 392: signalled = 0;
393: (void)alarm(interval);
394: }
395: /*NOTREACHED*/
396: }
397:
1.9 mickey 398: void
1.19 deraadt 399: printhdr(void)
1.1 deraadt 400: {
401: printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n",
402: "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename",
1.2 niklas 403: "Access", "Readdir");
1.1 deraadt 404: fflush(stdout);
405: }
406:
407: /*
408: * Called if an interval expires before sidewaysintpr has completed a loop.
409: * Sets a flag to not wait for the alarm.
410: */
411: void
1.20 deraadt 412: catchalarm(int signo)
1.1 deraadt 413: {
414: signalled = 1;
415: }
416:
1.9 mickey 417: void
1.19 deraadt 418: usage(void)
1.1 deraadt 419: {
1.8 mickey 420: extern char *__progname;
1.22 ! tedu 421:
1.9 mickey 422: fprintf(stderr,
1.22 ! tedu 423: "usage: %s [-cs] [-M core] [-N system] [-w interval]\n",
1.9 mickey 424: __progname);
1.1 deraadt 425: exit(1);
426: }
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