2 * Copyright (c) 1983, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
38 static char copyright[] =
39 "@(#) Copyright (c) 1983, 1989, 1993\n\
40 The Regents of the University of California. All rights reserved.\n";
45 static char sccsid[] = "@(#)nfsstat.c 8.2 (Berkeley) 3/31/95";
47 static const char rcsid[] =
51 #include <sys/param.h>
52 #include <sys/mount.h>
54 #include <sys/sysctl.h>
55 #include <nfs/rpcv2.h>
56 #include <nfs/nfsproto.h>
78 static int deadkernel = 0;
79 static int widemode = 0;
81 void intpr __P((int, int));
82 void printhdr __P((int, int));
83 void sidewaysintpr __P((u_int, int, int));
84 void usage __P((void));
85 char *sperc1 __P((int, int));
86 char *sperc2 __P((int, int));
88 #define DELTA(field) (nfsstats.field - lastst.field)
102 memf = nlistf = NULL;
103 while ((ch = getopt(argc, argv, "csWM:N:w:")) != -1)
115 interval = atoi(optarg);
134 #define BACKWARD_COMPATIBILITY
135 #ifdef BACKWARD_COMPATIBILITY
137 interval = atoi(*argv);
146 * Discard setgid privileges if not the running kernel so that bad
147 * guys can't print interesting stuff from kernel memory.
149 if (nlistf != NULL || memf != NULL) {
153 if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY,
155 errx(1, "kvm_openfiles: %s", errbuf);
157 if (kvm_nlist(kd, nl) != 0) {
158 errx(1, "kvm_nlist: can't get names");
163 sidewaysintpr(interval, clientOnly, serverOnly);
165 intpr(clientOnly, serverOnly);
170 * Read the nfs stats using sysctl(3) for live kernels, or kvm_read
175 struct nfsstats *stp;
178 if(kvm_read(kd, (u_long)nl[N_NFSSTAT].n_value, stp,
184 size_t buflen = sizeof *stp;
187 if (getvfsbyname("nfs", &vfc) < 0)
188 err(1, "getvfsbyname: NFS not compiled into kernel");
190 name[1] = vfc.vfc_typenum;
191 name[2] = NFS_NFSSTATS;
192 if (sysctl(name, 3, stp, &buflen, (void *)0, (size_t)0) < 0) {
199 * Print a description of the nfs stats.
202 intpr(int clientOnly, int serverOnly)
204 struct nfsstats nfsstats;
206 readstats(&nfsstats);
209 printf("Client Info:\n");
210 printf("Rpc Counts:\n");
211 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
212 "Getattr", "Setattr", "Lookup", "Readlink", "Read",
213 "Write", "Create", "Remove");
214 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
215 nfsstats.rpccnt[NFSPROC_GETATTR],
216 nfsstats.rpccnt[NFSPROC_SETATTR],
217 nfsstats.rpccnt[NFSPROC_LOOKUP],
218 nfsstats.rpccnt[NFSPROC_READLINK],
219 nfsstats.rpccnt[NFSPROC_READ],
220 nfsstats.rpccnt[NFSPROC_WRITE],
221 nfsstats.rpccnt[NFSPROC_CREATE],
222 nfsstats.rpccnt[NFSPROC_REMOVE]);
223 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
224 "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
225 "Readdir", "RdirPlus", "Access");
226 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
227 nfsstats.rpccnt[NFSPROC_RENAME],
228 nfsstats.rpccnt[NFSPROC_LINK],
229 nfsstats.rpccnt[NFSPROC_SYMLINK],
230 nfsstats.rpccnt[NFSPROC_MKDIR],
231 nfsstats.rpccnt[NFSPROC_RMDIR],
232 nfsstats.rpccnt[NFSPROC_READDIR],
233 nfsstats.rpccnt[NFSPROC_READDIRPLUS],
234 nfsstats.rpccnt[NFSPROC_ACCESS]);
235 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
236 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit",
237 "GLease", "Vacate", "Evict");
238 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
239 nfsstats.rpccnt[NFSPROC_MKNOD],
240 nfsstats.rpccnt[NFSPROC_FSSTAT],
241 nfsstats.rpccnt[NFSPROC_FSINFO],
242 nfsstats.rpccnt[NFSPROC_PATHCONF],
243 nfsstats.rpccnt[NFSPROC_COMMIT],
244 nfsstats.rpccnt[NQNFSPROC_GETLEASE],
245 nfsstats.rpccnt[NQNFSPROC_VACATED],
246 nfsstats.rpccnt[NQNFSPROC_EVICTED]);
247 printf("Rpc Info:\n");
248 printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
249 "TimedOut", "Invalid", "X Replies", "Retries",
251 printf("%9d %9d %9d %9d %9d\n",
252 nfsstats.rpctimeouts,
254 nfsstats.rpcunexpected,
256 nfsstats.rpcrequests);
257 printf("Cache Info:\n");
258 printf("%9.9s %9.9s %9.9s %9.9s",
259 "Attr Hits", "Misses", "Lkup Hits", "Misses");
260 printf(" %9.9s %9.9s %9.9s %9.9s\n",
261 "BioR Hits", "Misses", "BioW Hits", "Misses");
262 printf("%9d %9d %9d %9d",
263 nfsstats.attrcache_hits, nfsstats.attrcache_misses,
264 nfsstats.lookupcache_hits, nfsstats.lookupcache_misses);
265 printf(" %9d %9d %9d %9d\n",
266 nfsstats.biocache_reads-nfsstats.read_bios,
268 nfsstats.biocache_writes-nfsstats.write_bios,
269 nfsstats.write_bios);
270 printf("%9.9s %9.9s %9.9s %9.9s",
271 "BioRLHits", "Misses", "BioD Hits", "Misses");
272 printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
273 printf("%9d %9d %9d %9d",
274 nfsstats.biocache_readlinks-nfsstats.readlink_bios,
275 nfsstats.readlink_bios,
276 nfsstats.biocache_readdirs-nfsstats.readdir_bios,
277 nfsstats.readdir_bios);
279 nfsstats.direofcache_hits, nfsstats.direofcache_misses);
282 printf("\nServer Info:\n");
283 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
284 "Getattr", "Setattr", "Lookup", "Readlink", "Read",
285 "Write", "Create", "Remove");
286 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
287 nfsstats.srvrpccnt[NFSPROC_GETATTR],
288 nfsstats.srvrpccnt[NFSPROC_SETATTR],
289 nfsstats.srvrpccnt[NFSPROC_LOOKUP],
290 nfsstats.srvrpccnt[NFSPROC_READLINK],
291 nfsstats.srvrpccnt[NFSPROC_READ],
292 nfsstats.srvrpccnt[NFSPROC_WRITE],
293 nfsstats.srvrpccnt[NFSPROC_CREATE],
294 nfsstats.srvrpccnt[NFSPROC_REMOVE]);
295 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
296 "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
297 "Readdir", "RdirPlus", "Access");
298 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
299 nfsstats.srvrpccnt[NFSPROC_RENAME],
300 nfsstats.srvrpccnt[NFSPROC_LINK],
301 nfsstats.srvrpccnt[NFSPROC_SYMLINK],
302 nfsstats.srvrpccnt[NFSPROC_MKDIR],
303 nfsstats.srvrpccnt[NFSPROC_RMDIR],
304 nfsstats.srvrpccnt[NFSPROC_READDIR],
305 nfsstats.srvrpccnt[NFSPROC_READDIRPLUS],
306 nfsstats.srvrpccnt[NFSPROC_ACCESS]);
307 printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
308 "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit",
309 "GLease", "Vacate", "Evict");
310 printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
311 nfsstats.srvrpccnt[NFSPROC_MKNOD],
312 nfsstats.srvrpccnt[NFSPROC_FSSTAT],
313 nfsstats.srvrpccnt[NFSPROC_FSINFO],
314 nfsstats.srvrpccnt[NFSPROC_PATHCONF],
315 nfsstats.srvrpccnt[NFSPROC_COMMIT],
316 nfsstats.srvrpccnt[NQNFSPROC_GETLEASE],
317 nfsstats.srvrpccnt[NQNFSPROC_VACATED],
318 nfsstats.srvrpccnt[NQNFSPROC_EVICTED]);
319 printf("Server Ret-Failed\n");
320 printf("%17d\n", nfsstats.srvrpc_errs);
321 printf("Server Faults\n");
322 printf("%13d\n", nfsstats.srv_errs);
323 printf("Server Cache Stats:\n");
324 printf("%9.9s %9.9s %9.9s %9.9s\n",
325 "Inprog", "Idem", "Non-idem", "Misses");
326 printf("%9d %9d %9d %9d\n",
327 nfsstats.srvcache_inproghits,
328 nfsstats.srvcache_idemdonehits,
329 nfsstats.srvcache_nonidemdonehits,
330 nfsstats.srvcache_misses);
331 printf("Server Lease Stats:\n");
332 printf("%9.9s %9.9s %9.9s\n",
333 "Leases", "PeakL", "GLeases");
334 printf("%9d %9d %9d\n",
335 nfsstats.srvnqnfs_leases,
336 nfsstats.srvnqnfs_maxleases,
337 nfsstats.srvnqnfs_getleases);
338 printf("Server Write Gathering:\n");
339 printf("%9.9s %9.9s %9.9s\n",
340 "WriteOps", "WriteRPC", "Opsaved");
341 printf("%9d %9d %9d\n",
342 nfsstats.srvvop_writes,
343 nfsstats.srvrpccnt[NFSPROC_WRITE],
344 nfsstats.srvrpccnt[NFSPROC_WRITE] -
345 nfsstats.srvvop_writes);
349 u_char signalled; /* set if alarm goes off "early" */
352 * Print a running summary of nfs statistics.
353 * Repeat display every interval seconds, showing statistics
354 * collected over that interval. Assumes that interval is non-zero.
355 * First line printed at top of screen is always cumulative.
358 sidewaysintpr(u_int interval, int clientOnly, int serverOnly)
360 struct nfsstats nfsstats, lastst;
367 readstats(&nfsstats);
370 printhdr(clientOnly, serverOnly);
371 if (clientOnly && serverOnly)
377 printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
378 ((clientOnly && serverOnly) ? "Client:" : ""),
379 DELTA(attrcache_hits) + DELTA(attrcache_misses),
380 DELTA(lookupcache_hits) + DELTA(lookupcache_misses),
381 DELTA(biocache_readlinks),
382 DELTA(biocache_reads),
383 DELTA(biocache_writes),
384 nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME],
385 DELTA(accesscache_hits) + DELTA(accesscache_misses),
386 DELTA(biocache_readdirs)
389 printf(" %s %s %s %s %s %s",
390 sperc1(DELTA(attrcache_hits),
391 DELTA(attrcache_misses)),
392 sperc1(DELTA(lookupcache_hits),
393 DELTA(lookupcache_misses)),
394 sperc2(DELTA(biocache_reads),
396 sperc2(DELTA(biocache_writes),
398 sperc1(DELTA(accesscache_hits),
399 DELTA(accesscache_misses)),
400 sperc2(DELTA(biocache_readdirs),
407 printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
408 ((clientOnly && serverOnly) ? "Server:" : ""),
409 nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR],
410 nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP],
411 nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK],
412 nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ],
413 nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE],
414 nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME],
415 nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS],
416 (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR])
417 +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS]));
428 printhdr(int clientOnly, int serverOnly)
430 printf("%s%6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s",
431 ((serverOnly && clientOnly) ? " " : " "),
432 "GtAttr", "Lookup", "Rdlink", "Read", "Write", "Rename",
434 if (widemode && clientOnly) {
435 printf(" Attr Lkup BioR BioW Accs BioD");
444 (void)fprintf(stderr,
445 "usage: nfsstat [-csW] [-M core] [-N system] [-w interval]\n");
449 static char SPBuf[64][8];
453 sperc1(int hits, int misses)
455 char *p = SPBuf[SPIndex];
459 (int)(char)((quad_t)hits * 100 / (hits + misses)));
463 SPIndex = (SPIndex + 1) & 63;
468 sperc2(int ttl, int misses)
470 char *p = SPBuf[SPIndex];
474 (int)(char)((quad_t)(ttl - misses) * 100 / ttl));
478 SPIndex = (SPIndex + 1) & 63;