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15637ed4 RG |
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 | } |