nfsstat.c revision 281691
1/*
2 * Copyright (c) 1983, 1989, 1993
3 *	The Regents of the University of California.  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 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef lint
34static const char copyright[] =
35"@(#) Copyright (c) 1983, 1989, 1993\n\
36	The Regents of the University of California.  All rights reserved.\n";
37#endif /* not lint */
38
39#ifndef lint
40#if 0
41static char sccsid[] = "@(#)nfsstat.c	8.2 (Berkeley) 3/31/95";
42#endif
43static const char rcsid[] =
44  "$FreeBSD: head/usr.bin/nfsstat/nfsstat.c 281691 2015-04-18 16:08:06Z trasz $";
45#endif /* not lint */
46
47#include <sys/param.h>
48#include <sys/module.h>
49#include <sys/mount.h>
50#include <sys/time.h>
51#include <sys/sysctl.h>
52#include <nfs/nfsproto.h>
53#include <nfsclient/nfs.h>
54#include <nfsserver/nfs.h>
55#include <nfs/nfssvc.h>
56
57#include <fs/nfs/nfsport.h>
58
59#include <signal.h>
60#include <fcntl.h>
61#include <ctype.h>
62#include <errno.h>
63#include <kvm.h>
64#include <limits.h>
65#include <nlist.h>
66#include <unistd.h>
67#include <stdio.h>
68#include <stdlib.h>
69#include <string.h>
70#include <paths.h>
71#include <err.h>
72
73struct nlist nl[] = {
74#define	N_NFSSTAT	0
75	{ .n_name = "nfsstats" },
76#define	N_NFSRVSTAT	1
77	{ .n_name = "nfsrvstats" },
78	{ .n_name = NULL },
79};
80kvm_t *kd;
81
82static int deadkernel = 0;
83static int widemode = 0;
84static int zflag = 0;
85static int run_v4 = 1;
86static int printtitle = 1;
87static struct ext_nfsstats ext_nfsstats;
88static int extra_output = 0;
89
90void intpr(int, int);
91void printhdr(int, int);
92void sidewaysintpr(u_int, int, int);
93void usage(void);
94char *sperc1(int, int);
95char *sperc2(int, int);
96void exp_intpr(int, int);
97void exp_sidewaysintpr(u_int, int, int);
98
99#define DELTA(field)	(nfsstats.field - lastst.field)
100
101int
102main(int argc, char **argv)
103{
104	u_int interval;
105	int clientOnly = -1;
106	int serverOnly = -1;
107	int ch;
108	char *memf, *nlistf;
109	char errbuf[_POSIX2_LINE_MAX];
110	int mntlen, i;
111	char buf[1024];
112	struct statfs *mntbuf;
113	struct nfscl_dumpmntopts dumpmntopts;
114
115	interval = 0;
116	memf = nlistf = NULL;
117	while ((ch = getopt(argc, argv, "cesWM:mN:ow:z")) != -1)
118		switch(ch) {
119		case 'M':
120			memf = optarg;
121			break;
122		case 'm':
123			/* Display mount options for NFS mount points. */
124			mntlen = getmntinfo(&mntbuf, MNT_NOWAIT);
125			for (i = 0; i < mntlen; i++) {
126				if (strcmp(mntbuf->f_fstypename, "nfs") == 0) {
127					dumpmntopts.ndmnt_fname =
128					    mntbuf->f_mntonname;
129					dumpmntopts.ndmnt_buf = buf;
130					dumpmntopts.ndmnt_blen = sizeof(buf);
131					if (nfssvc(NFSSVC_DUMPMNTOPTS,
132					    &dumpmntopts) >= 0)
133						printf("%s on %s\n%s\n",
134						    mntbuf->f_mntfromname,
135						    mntbuf->f_mntonname, buf);
136					else if (errno == EPERM)
137						errx(1, "Only priviledged users"
138						    " can use the -m option");
139				}
140				mntbuf++;
141			}
142			exit(0);
143		case 'N':
144			nlistf = optarg;
145			break;
146		case 'W':
147			widemode = 1;
148			break;
149		case 'w':
150			interval = atoi(optarg);
151			break;
152		case 'c':
153			clientOnly = 1;
154			if (serverOnly < 0)
155				serverOnly = 0;
156			break;
157		case 's':
158			serverOnly = 1;
159			if (clientOnly < 0)
160				clientOnly = 0;
161			break;
162		case 'z':
163			zflag = 1;
164			break;
165		case 'o':
166			if (extra_output != 0)
167				err(1, "-o incompatible with -e");
168			run_v4 = 0;
169			break;
170		case 'e':
171			if (run_v4 == 0)
172				err(1, "-e incompatible with -o");
173			extra_output = 1;
174			break;
175		case '?':
176		default:
177			usage();
178		}
179	argc -= optind;
180	argv += optind;
181
182#define	BACKWARD_COMPATIBILITY
183#ifdef	BACKWARD_COMPATIBILITY
184	if (*argv) {
185		interval = atoi(*argv);
186		if (*++argv) {
187			nlistf = *argv;
188			if (*++argv)
189				memf = *argv;
190		}
191	}
192#endif
193	if (run_v4 != 0 && modfind("nfscommon") < 0)
194		errx(1, "new client/server not loaded");
195
196	if (run_v4 == 0 && (nlistf != NULL || memf != NULL)) {
197		deadkernel = 1;
198
199		if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY,
200					errbuf)) == 0) {
201			errx(1, "kvm_openfiles: %s", errbuf);
202		}
203		if (kvm_nlist(kd, nl) != 0) {
204			errx(1, "kvm_nlist: can't get names");
205		}
206	}
207
208	if (interval) {
209		if (run_v4 > 0)
210			exp_sidewaysintpr(interval, clientOnly, serverOnly);
211		else
212			sidewaysintpr(interval, clientOnly, serverOnly);
213	} else {
214		if (extra_output != 0)
215			exp_intpr(clientOnly, serverOnly);
216		else
217			intpr(clientOnly, serverOnly);
218	}
219	exit(0);
220}
221
222/*
223 * Read the nfs stats using sysctl(3) for live kernels, or kvm_read
224 * for dead ones.
225 */
226static void
227readstats(struct nfsstats **stp, struct nfsrvstats **srvstp, int zero)
228{
229	union {
230		struct nfsstats client;
231		struct nfsrvstats server;
232	} zerostat;
233	size_t buflen;
234
235	if (deadkernel) {
236		if (*stp != NULL && kvm_read(kd, (u_long)nl[N_NFSSTAT].n_value,
237		    *stp, sizeof(struct nfsstats)) < 0) {
238			*stp = NULL;
239		}
240		if (*srvstp != NULL && kvm_read(kd,
241		    (u_long)nl[N_NFSRVSTAT].n_value, *srvstp,
242		    sizeof(struct nfsrvstats)) < 0) {
243			*srvstp = NULL;
244		}
245	} else {
246		if (zero)
247			bzero(&zerostat, sizeof(zerostat));
248		buflen = sizeof(struct nfsrvstats);
249		if (*srvstp != NULL && sysctlbyname("vfs.nfsrv.nfsrvstats",
250		    *srvstp, &buflen, zero ? &zerostat : NULL,
251		    zero ? buflen : 0) < 0) {
252			if (errno != ENOENT)
253				err(1, "sysctl: vfs.nfsrv.nfsrvstats");
254			*srvstp = NULL;
255		}
256	}
257}
258
259/*
260 * Print a description of the nfs stats.
261 */
262void
263intpr(int clientOnly, int serverOnly)
264{
265	struct nfsstats nfsstats, *nfsstatsp;
266	struct nfsrvstats nfsrvstats, *nfsrvstatsp;
267	int nfssvc_flag;
268
269	if (run_v4 == 0) {
270		/*
271		 * Only read the stats we are going to display to avoid zeroing
272		 * stats the user didn't request.
273		 */
274		if (clientOnly)
275			nfsstatsp = &nfsstats;
276		else
277			nfsstatsp = NULL;
278		if (serverOnly)
279			nfsrvstatsp = &nfsrvstats;
280		else
281			nfsrvstatsp = NULL;
282
283		readstats(&nfsstatsp, &nfsrvstatsp, zflag);
284
285		if (clientOnly && !nfsstatsp) {
286			printf("Client not present!\n");
287			clientOnly = 0;
288		}
289	} else {
290		nfssvc_flag = NFSSVC_GETSTATS;
291		if (zflag != 0) {
292			if (clientOnly != 0)
293				nfssvc_flag |= NFSSVC_ZEROCLTSTATS;
294			if (serverOnly != 0)
295				nfssvc_flag |= NFSSVC_ZEROSRVSTATS;
296		}
297		if (nfssvc(nfssvc_flag, &ext_nfsstats) < 0)
298			err(1, "Can't get stats");
299	}
300	if (clientOnly) {
301		printf("Client Info:\n");
302		printf("Rpc Counts:\n");
303		printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
304			"Getattr", "Setattr", "Lookup", "Readlink", "Read",
305			"Write", "Create", "Remove");
306		if (run_v4 == 0)
307			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
308				nfsstats.rpccnt[NFSPROC_GETATTR],
309				nfsstats.rpccnt[NFSPROC_SETATTR],
310				nfsstats.rpccnt[NFSPROC_LOOKUP],
311				nfsstats.rpccnt[NFSPROC_READLINK],
312				nfsstats.rpccnt[NFSPROC_READ],
313				nfsstats.rpccnt[NFSPROC_WRITE],
314				nfsstats.rpccnt[NFSPROC_CREATE],
315				nfsstats.rpccnt[NFSPROC_REMOVE]);
316		else
317			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
318				ext_nfsstats.rpccnt[NFSPROC_GETATTR],
319				ext_nfsstats.rpccnt[NFSPROC_SETATTR],
320				ext_nfsstats.rpccnt[NFSPROC_LOOKUP],
321				ext_nfsstats.rpccnt[NFSPROC_READLINK],
322				ext_nfsstats.rpccnt[NFSPROC_READ],
323				ext_nfsstats.rpccnt[NFSPROC_WRITE],
324				ext_nfsstats.rpccnt[NFSPROC_CREATE],
325				ext_nfsstats.rpccnt[NFSPROC_REMOVE]);
326		printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
327			"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
328			"Readdir", "RdirPlus", "Access");
329		if (run_v4 == 0)
330			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
331				nfsstats.rpccnt[NFSPROC_RENAME],
332				nfsstats.rpccnt[NFSPROC_LINK],
333				nfsstats.rpccnt[NFSPROC_SYMLINK],
334				nfsstats.rpccnt[NFSPROC_MKDIR],
335				nfsstats.rpccnt[NFSPROC_RMDIR],
336				nfsstats.rpccnt[NFSPROC_READDIR],
337				nfsstats.rpccnt[NFSPROC_READDIRPLUS],
338				nfsstats.rpccnt[NFSPROC_ACCESS]);
339		else
340			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
341				ext_nfsstats.rpccnt[NFSPROC_RENAME],
342				ext_nfsstats.rpccnt[NFSPROC_LINK],
343				ext_nfsstats.rpccnt[NFSPROC_SYMLINK],
344				ext_nfsstats.rpccnt[NFSPROC_MKDIR],
345				ext_nfsstats.rpccnt[NFSPROC_RMDIR],
346				ext_nfsstats.rpccnt[NFSPROC_READDIR],
347				ext_nfsstats.rpccnt[NFSPROC_READDIRPLUS],
348				ext_nfsstats.rpccnt[NFSPROC_ACCESS]);
349		printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
350			"Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit");
351		if (run_v4 == 0)
352			printf("%9d %9d %9d %9d %9d\n",
353				nfsstats.rpccnt[NFSPROC_MKNOD],
354				nfsstats.rpccnt[NFSPROC_FSSTAT],
355				nfsstats.rpccnt[NFSPROC_FSINFO],
356				nfsstats.rpccnt[NFSPROC_PATHCONF],
357				nfsstats.rpccnt[NFSPROC_COMMIT]);
358		else
359			printf("%9d %9d %9d %9d %9d\n",
360				ext_nfsstats.rpccnt[NFSPROC_MKNOD],
361				ext_nfsstats.rpccnt[NFSPROC_FSSTAT],
362				ext_nfsstats.rpccnt[NFSPROC_FSINFO],
363				ext_nfsstats.rpccnt[NFSPROC_PATHCONF],
364				ext_nfsstats.rpccnt[NFSPROC_COMMIT]);
365		printf("Rpc Info:\n");
366		printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
367			"TimedOut", "Invalid", "X Replies", "Retries",
368			"Requests");
369		if (run_v4 == 0)
370			printf("%9d %9d %9d %9d %9d\n",
371				nfsstats.rpctimeouts,
372				nfsstats.rpcinvalid,
373				nfsstats.rpcunexpected,
374				nfsstats.rpcretries,
375				nfsstats.rpcrequests);
376		else
377			printf("%9d %9d %9d %9d %9d\n",
378				ext_nfsstats.rpctimeouts,
379				ext_nfsstats.rpcinvalid,
380				ext_nfsstats.rpcunexpected,
381				ext_nfsstats.rpcretries,
382				ext_nfsstats.rpcrequests);
383		printf("Cache Info:\n");
384		printf("%9.9s %9.9s %9.9s %9.9s",
385			"Attr Hits", "Misses", "Lkup Hits", "Misses");
386		printf(" %9.9s %9.9s %9.9s %9.9s\n",
387			"BioR Hits", "Misses", "BioW Hits", "Misses");
388		if (run_v4 == 0) {
389			printf("%9d %9d %9d %9d",
390				nfsstats.attrcache_hits,
391				nfsstats.attrcache_misses,
392				nfsstats.lookupcache_hits,
393				nfsstats.lookupcache_misses);
394			printf(" %9d %9d %9d %9d\n",
395				nfsstats.biocache_reads-nfsstats.read_bios,
396				nfsstats.read_bios,
397				nfsstats.biocache_writes-nfsstats.write_bios,
398				nfsstats.write_bios);
399		} else {
400			printf("%9d %9d %9d %9d",
401				ext_nfsstats.attrcache_hits,
402				ext_nfsstats.attrcache_misses,
403				ext_nfsstats.lookupcache_hits,
404				ext_nfsstats.lookupcache_misses);
405			printf(" %9d %9d %9d %9d\n",
406				ext_nfsstats.biocache_reads -
407				ext_nfsstats.read_bios,
408				ext_nfsstats.read_bios,
409				ext_nfsstats.biocache_writes -
410				ext_nfsstats.write_bios,
411				ext_nfsstats.write_bios);
412		}
413		printf("%9.9s %9.9s %9.9s %9.9s",
414			"BioRLHits", "Misses", "BioD Hits", "Misses");
415		printf(" %9.9s %9.9s %9.9s %9.9s\n", "DirE Hits", "Misses", "Accs Hits", "Misses");
416		if (run_v4 == 0) {
417			printf("%9d %9d %9d %9d",
418				nfsstats.biocache_readlinks -
419				nfsstats.readlink_bios,
420				nfsstats.readlink_bios,
421				nfsstats.biocache_readdirs -
422				nfsstats.readdir_bios,
423				nfsstats.readdir_bios);
424			printf(" %9d %9d %9d %9d\n",
425				nfsstats.direofcache_hits,
426				nfsstats.direofcache_misses,
427				nfsstats.accesscache_hits,
428				nfsstats.accesscache_misses);
429		} else {
430			printf("%9d %9d %9d %9d",
431				ext_nfsstats.biocache_readlinks -
432				ext_nfsstats.readlink_bios,
433				ext_nfsstats.readlink_bios,
434				ext_nfsstats.biocache_readdirs -
435				ext_nfsstats.readdir_bios,
436				ext_nfsstats.readdir_bios);
437			printf(" %9d %9d %9d %9d\n",
438				ext_nfsstats.direofcache_hits,
439				ext_nfsstats.direofcache_misses,
440				ext_nfsstats.accesscache_hits,
441				ext_nfsstats.accesscache_misses);
442		}
443	}
444	if (run_v4 == 0 && serverOnly && !nfsrvstatsp) {
445		printf("Server not present!\n");
446		serverOnly = 0;
447	}
448	if (serverOnly) {
449		printf("\nServer Info:\n");
450		printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
451			"Getattr", "Setattr", "Lookup", "Readlink", "Read",
452			"Write", "Create", "Remove");
453		if (run_v4 == 0)
454			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
455				nfsrvstats.srvrpccnt[NFSPROC_GETATTR],
456				nfsrvstats.srvrpccnt[NFSPROC_SETATTR],
457				nfsrvstats.srvrpccnt[NFSPROC_LOOKUP],
458				nfsrvstats.srvrpccnt[NFSPROC_READLINK],
459				nfsrvstats.srvrpccnt[NFSPROC_READ],
460				nfsrvstats.srvrpccnt[NFSPROC_WRITE],
461				nfsrvstats.srvrpccnt[NFSPROC_CREATE],
462				nfsrvstats.srvrpccnt[NFSPROC_REMOVE]);
463		else
464			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
465				ext_nfsstats.srvrpccnt[NFSV4OP_GETATTR],
466				ext_nfsstats.srvrpccnt[NFSV4OP_SETATTR],
467				ext_nfsstats.srvrpccnt[NFSV4OP_LOOKUP],
468				ext_nfsstats.srvrpccnt[NFSV4OP_READLINK],
469				ext_nfsstats.srvrpccnt[NFSV4OP_READ],
470				ext_nfsstats.srvrpccnt[NFSV4OP_WRITE],
471				ext_nfsstats.srvrpccnt[NFSV4OP_CREATE],
472				ext_nfsstats.srvrpccnt[NFSV4OP_REMOVE]);
473		printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
474			"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
475			"Readdir", "RdirPlus", "Access");
476		if (run_v4 == 0)
477			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
478				nfsrvstats.srvrpccnt[NFSPROC_RENAME],
479				nfsrvstats.srvrpccnt[NFSPROC_LINK],
480				nfsrvstats.srvrpccnt[NFSPROC_SYMLINK],
481				nfsrvstats.srvrpccnt[NFSPROC_MKDIR],
482				nfsrvstats.srvrpccnt[NFSPROC_RMDIR],
483				nfsrvstats.srvrpccnt[NFSPROC_READDIR],
484				nfsrvstats.srvrpccnt[NFSPROC_READDIRPLUS],
485				nfsrvstats.srvrpccnt[NFSPROC_ACCESS]);
486		else
487			printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
488				ext_nfsstats.srvrpccnt[NFSV4OP_RENAME],
489				ext_nfsstats.srvrpccnt[NFSV4OP_LINK],
490				ext_nfsstats.srvrpccnt[NFSV4OP_SYMLINK],
491				ext_nfsstats.srvrpccnt[NFSV4OP_MKDIR],
492				ext_nfsstats.srvrpccnt[NFSV4OP_RMDIR],
493				ext_nfsstats.srvrpccnt[NFSV4OP_READDIR],
494				ext_nfsstats.srvrpccnt[NFSV4OP_READDIRPLUS],
495				ext_nfsstats.srvrpccnt[NFSV4OP_ACCESS]);
496		printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
497			"Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit");
498		if (run_v4 == 0)
499			printf("%9d %9d %9d %9d %9d\n",
500				nfsrvstats.srvrpccnt[NFSPROC_MKNOD],
501				nfsrvstats.srvrpccnt[NFSPROC_FSSTAT],
502				nfsrvstats.srvrpccnt[NFSPROC_FSINFO],
503				nfsrvstats.srvrpccnt[NFSPROC_PATHCONF],
504				nfsrvstats.srvrpccnt[NFSPROC_COMMIT]);
505		else
506			printf("%9d %9d %9d %9d %9d\n",
507				ext_nfsstats.srvrpccnt[NFSV4OP_MKNOD],
508				ext_nfsstats.srvrpccnt[NFSV4OP_FSSTAT],
509				ext_nfsstats.srvrpccnt[NFSV4OP_FSINFO],
510				ext_nfsstats.srvrpccnt[NFSV4OP_PATHCONF],
511				ext_nfsstats.srvrpccnt[NFSV4OP_COMMIT]);
512		printf("Server Ret-Failed\n");
513		if (run_v4 == 0)
514			printf("%17d\n", nfsrvstats.srvrpc_errs);
515		else
516			printf("%17d\n", ext_nfsstats.srvrpc_errs);
517		printf("Server Faults\n");
518		if (run_v4 == 0)
519			printf("%13d\n", nfsrvstats.srv_errs);
520		else
521			printf("%13d\n", ext_nfsstats.srv_errs);
522		printf("Server Cache Stats:\n");
523		printf("%9.9s %9.9s %9.9s %9.9s\n",
524			"Inprog", "Idem", "Non-idem", "Misses");
525		if (run_v4 == 0)
526			printf("%9d %9d %9d %9d\n",
527				nfsrvstats.srvcache_inproghits,
528				nfsrvstats.srvcache_idemdonehits,
529				nfsrvstats.srvcache_nonidemdonehits,
530				nfsrvstats.srvcache_misses);
531		else
532			printf("%9d %9d %9d %9d\n",
533				ext_nfsstats.srvcache_inproghits,
534				ext_nfsstats.srvcache_idemdonehits,
535				ext_nfsstats.srvcache_nonidemdonehits,
536				ext_nfsstats.srvcache_misses);
537		printf("Server Write Gathering:\n");
538		printf("%9.9s %9.9s %9.9s\n",
539			"WriteOps", "WriteRPC", "Opsaved");
540		if (run_v4 == 0)
541			printf("%9d %9d %9d\n",
542				nfsrvstats.srvvop_writes,
543				nfsrvstats.srvrpccnt[NFSPROC_WRITE],
544				nfsrvstats.srvrpccnt[NFSPROC_WRITE] -
545				    nfsrvstats.srvvop_writes);
546		else
547			/*
548			 * The new client doesn't do write gathering. It was
549			 * only useful for NFSv2.
550			 */
551			printf("%9d %9d %9d\n",
552				ext_nfsstats.srvrpccnt[NFSV4OP_WRITE],
553				ext_nfsstats.srvrpccnt[NFSV4OP_WRITE], 0);
554	}
555}
556
557u_char	signalled;			/* set if alarm goes off "early" */
558
559/*
560 * Print a running summary of nfs statistics.
561 * Repeat display every interval seconds, showing statistics
562 * collected over that interval.  Assumes that interval is non-zero.
563 * First line printed at top of screen is always cumulative.
564 */
565void
566sidewaysintpr(u_int interval, int clientOnly, int serverOnly)
567{
568	struct nfsstats nfsstats, lastst, *nfsstatsp;
569	struct nfsrvstats nfsrvstats, lastsrvst, *nfsrvstatsp;
570	int hdrcnt = 1;
571
572	nfsstatsp = &lastst;
573	nfsrvstatsp = &lastsrvst;
574	readstats(&nfsstatsp, &nfsrvstatsp, 0);
575	if (clientOnly && !nfsstatsp) {
576		printf("Client not present!\n");
577		clientOnly = 0;
578	}
579	if (serverOnly && !nfsrvstatsp) {
580		printf("Server not present!\n");
581		serverOnly = 0;
582	}
583	sleep(interval);
584
585	for (;;) {
586		nfsstatsp = &nfsstats;
587		nfsrvstatsp = &nfsrvstats;
588		readstats(&nfsstatsp, &nfsrvstatsp, 0);
589
590		if (--hdrcnt == 0) {
591			printhdr(clientOnly, serverOnly);
592			if (clientOnly && serverOnly)
593				hdrcnt = 10;
594			else
595				hdrcnt = 20;
596		}
597		if (clientOnly) {
598		    printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
599			((clientOnly && serverOnly) ? "Client:" : ""),
600			DELTA(rpccnt[NFSPROC_GETATTR]),
601			DELTA(rpccnt[NFSPROC_LOOKUP]),
602			DELTA(rpccnt[NFSPROC_READLINK]),
603			DELTA(rpccnt[NFSPROC_READ]),
604			DELTA(rpccnt[NFSPROC_WRITE]),
605			DELTA(rpccnt[NFSPROC_RENAME]),
606			DELTA(rpccnt[NFSPROC_ACCESS]),
607			DELTA(rpccnt[NFSPROC_READDIR]) +
608			DELTA(rpccnt[NFSPROC_READDIRPLUS])
609		    );
610		    if (widemode) {
611			    printf(" %s %s %s %s %s %s",
612				sperc1(DELTA(attrcache_hits),
613				    DELTA(attrcache_misses)),
614				sperc1(DELTA(lookupcache_hits),
615				    DELTA(lookupcache_misses)),
616				sperc2(DELTA(biocache_reads),
617				    DELTA(read_bios)),
618				sperc2(DELTA(biocache_writes),
619				    DELTA(write_bios)),
620				sperc1(DELTA(accesscache_hits),
621				    DELTA(accesscache_misses)),
622				sperc2(DELTA(biocache_readdirs),
623				    DELTA(readdir_bios))
624			    );
625		    }
626		    printf("\n");
627		    lastst = nfsstats;
628		}
629		if (serverOnly) {
630		    printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
631			((clientOnly && serverOnly) ? "Server:" : ""),
632			nfsrvstats.srvrpccnt[NFSPROC_GETATTR]-lastsrvst.srvrpccnt[NFSPROC_GETATTR],
633			nfsrvstats.srvrpccnt[NFSPROC_LOOKUP]-lastsrvst.srvrpccnt[NFSPROC_LOOKUP],
634			nfsrvstats.srvrpccnt[NFSPROC_READLINK]-lastsrvst.srvrpccnt[NFSPROC_READLINK],
635			nfsrvstats.srvrpccnt[NFSPROC_READ]-lastsrvst.srvrpccnt[NFSPROC_READ],
636			nfsrvstats.srvrpccnt[NFSPROC_WRITE]-lastsrvst.srvrpccnt[NFSPROC_WRITE],
637			nfsrvstats.srvrpccnt[NFSPROC_RENAME]-lastsrvst.srvrpccnt[NFSPROC_RENAME],
638			nfsrvstats.srvrpccnt[NFSPROC_ACCESS]-lastsrvst.srvrpccnt[NFSPROC_ACCESS],
639			(nfsrvstats.srvrpccnt[NFSPROC_READDIR]-lastsrvst.srvrpccnt[NFSPROC_READDIR])
640			+(nfsrvstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastsrvst.srvrpccnt[NFSPROC_READDIRPLUS]));
641		    printf("\n");
642		    lastsrvst = nfsrvstats;
643		}
644		fflush(stdout);
645		sleep(interval);
646	}
647	/*NOTREACHED*/
648}
649
650void
651printhdr(int clientOnly, int serverOnly)
652{
653	printf("%s%6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s",
654	    ((serverOnly && clientOnly) ? "        " : " "),
655	    "GtAttr", "Lookup", "Rdlink", "Read", "Write", "Rename",
656	    "Access", "Rddir");
657	if (widemode && clientOnly) {
658		printf(" Attr Lkup BioR BioW Accs BioD");
659	}
660	printf("\n");
661	fflush(stdout);
662}
663
664void
665usage(void)
666{
667	(void)fprintf(stderr,
668	    "usage: nfsstat [-cemoszW] [-M core] [-N system] [-w wait]\n");
669	exit(1);
670}
671
672static char SPBuf[64][8];
673static int SPIndex;
674
675char *
676sperc1(int hits, int misses)
677{
678	char *p = SPBuf[SPIndex];
679
680	if (hits + misses) {
681		sprintf(p, "%3d%%",
682		    (int)(char)((quad_t)hits * 100 / (hits + misses)));
683	} else {
684		sprintf(p, "   -");
685	}
686	SPIndex = (SPIndex + 1) & 63;
687	return(p);
688}
689
690char *
691sperc2(int ttl, int misses)
692{
693	char *p = SPBuf[SPIndex];
694
695	if (ttl) {
696		sprintf(p, "%3d%%",
697		    (int)(char)((quad_t)(ttl - misses) * 100 / ttl));
698	} else {
699		sprintf(p, "   -");
700	}
701	SPIndex = (SPIndex + 1) & 63;
702	return(p);
703}
704
705/*
706 * Print a description of the nfs stats for the experimental client/server.
707 */
708void
709exp_intpr(int clientOnly, int serverOnly)
710{
711	int nfssvc_flag;
712
713	nfssvc_flag = NFSSVC_GETSTATS;
714	if (zflag != 0) {
715		if (clientOnly != 0)
716			nfssvc_flag |= NFSSVC_ZEROCLTSTATS;
717		if (serverOnly != 0)
718			nfssvc_flag |= NFSSVC_ZEROSRVSTATS;
719	}
720	if (nfssvc(nfssvc_flag, &ext_nfsstats) < 0)
721		err(1, "Can't get stats");
722	if (clientOnly != 0) {
723		if (printtitle) {
724			printf("Client Info:\n");
725			printf("Rpc Counts:\n");
726			printf(
727			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
728			    , "Getattr", "Setattr", "Lookup", "Readlink",
729			    "Read", "Write", "Create", "Remove");
730		}
731		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
732		    ext_nfsstats.rpccnt[NFSPROC_GETATTR],
733		    ext_nfsstats.rpccnt[NFSPROC_SETATTR],
734		    ext_nfsstats.rpccnt[NFSPROC_LOOKUP],
735		    ext_nfsstats.rpccnt[NFSPROC_READLINK],
736		    ext_nfsstats.rpccnt[NFSPROC_READ],
737		    ext_nfsstats.rpccnt[NFSPROC_WRITE],
738		    ext_nfsstats.rpccnt[NFSPROC_CREATE],
739		    ext_nfsstats.rpccnt[NFSPROC_REMOVE]);
740		if (printtitle)
741			printf(
742			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
743			    , "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
744			    "Readdir", "RdirPlus", "Access");
745		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
746		    ext_nfsstats.rpccnt[NFSPROC_RENAME],
747		    ext_nfsstats.rpccnt[NFSPROC_LINK],
748		    ext_nfsstats.rpccnt[NFSPROC_SYMLINK],
749		    ext_nfsstats.rpccnt[NFSPROC_MKDIR],
750		    ext_nfsstats.rpccnt[NFSPROC_RMDIR],
751		    ext_nfsstats.rpccnt[NFSPROC_READDIR],
752		    ext_nfsstats.rpccnt[NFSPROC_READDIRPLUS],
753		    ext_nfsstats.rpccnt[NFSPROC_ACCESS]);
754		if (printtitle)
755			printf(
756			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
757			    , "Mknod", "Fsstat", "Fsinfo", "PathConf",
758			    "Commit", "SetClId", "SetClIdCf", "Lock");
759		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
760		    ext_nfsstats.rpccnt[NFSPROC_MKNOD],
761		    ext_nfsstats.rpccnt[NFSPROC_FSSTAT],
762		    ext_nfsstats.rpccnt[NFSPROC_FSINFO],
763		    ext_nfsstats.rpccnt[NFSPROC_PATHCONF],
764		    ext_nfsstats.rpccnt[NFSPROC_COMMIT],
765		    ext_nfsstats.rpccnt[NFSPROC_SETCLIENTID],
766		    ext_nfsstats.rpccnt[NFSPROC_SETCLIENTIDCFRM],
767		    ext_nfsstats.rpccnt[NFSPROC_LOCK]);
768		if (printtitle)
769			printf("%9.9s %9.9s %9.9s %9.9s\n",
770			    "LockT", "LockU", "Open", "OpenCfr");
771		printf("%9d %9d %9d %9d\n",
772		    ext_nfsstats.rpccnt[NFSPROC_LOCKT],
773		    ext_nfsstats.rpccnt[NFSPROC_LOCKU],
774		    ext_nfsstats.rpccnt[NFSPROC_OPEN],
775		    ext_nfsstats.rpccnt[NFSPROC_OPENCONFIRM]);
776		if (printtitle)
777			printf(
778			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
779			    , "OpenOwner", "Opens", "LockOwner",
780			    "Locks", "Delegs", "LocalOwn",
781			    "LocalOpen", "LocalLOwn");
782		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
783		    ext_nfsstats.clopenowners,
784		    ext_nfsstats.clopens,
785		    ext_nfsstats.cllockowners,
786		    ext_nfsstats.cllocks,
787		    ext_nfsstats.cldelegates,
788		    ext_nfsstats.cllocalopenowners,
789		    ext_nfsstats.cllocalopens,
790		    ext_nfsstats.cllocallockowners);
791		if (printtitle)
792			printf("%9.9s\n", "LocalLock");
793		printf("%9d\n", ext_nfsstats.cllocallocks);
794		if (printtitle) {
795			printf("Rpc Info:\n");
796			printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
797			    "TimedOut", "Invalid", "X Replies", "Retries",
798			    "Requests");
799		}
800		printf("%9d %9d %9d %9d %9d\n",
801		    ext_nfsstats.rpctimeouts,
802		    ext_nfsstats.rpcinvalid,
803		    ext_nfsstats.rpcunexpected,
804		    ext_nfsstats.rpcretries,
805		    ext_nfsstats.rpcrequests);
806		if (printtitle) {
807			printf("Cache Info:\n");
808			printf("%9.9s %9.9s %9.9s %9.9s",
809			    "Attr Hits", "Misses", "Lkup Hits", "Misses");
810			printf(" %9.9s %9.9s %9.9s %9.9s\n",
811			    "BioR Hits", "Misses", "BioW Hits", "Misses");
812		}
813		printf("%9d %9d %9d %9d",
814		    ext_nfsstats.attrcache_hits,
815		    ext_nfsstats.attrcache_misses,
816		    ext_nfsstats.lookupcache_hits,
817		    ext_nfsstats.lookupcache_misses);
818		printf(" %9d %9d %9d %9d\n",
819		    ext_nfsstats.biocache_reads - ext_nfsstats.read_bios,
820		    ext_nfsstats.read_bios,
821		    ext_nfsstats.biocache_writes - ext_nfsstats.write_bios,
822		    ext_nfsstats.write_bios);
823		if (printtitle) {
824			printf("%9.9s %9.9s %9.9s %9.9s",
825			    "BioRLHits", "Misses", "BioD Hits", "Misses");
826			printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
827		}
828		printf("%9d %9d %9d %9d",
829		    ext_nfsstats.biocache_readlinks -
830		    ext_nfsstats.readlink_bios,
831		    ext_nfsstats.readlink_bios,
832		    ext_nfsstats.biocache_readdirs -
833		    ext_nfsstats.readdir_bios,
834		    ext_nfsstats.readdir_bios);
835		printf(" %9d %9d\n",
836		    ext_nfsstats.direofcache_hits,
837		    ext_nfsstats.direofcache_misses);
838	}
839	if (serverOnly != 0) {
840		if (printtitle) {
841			printf("\nServer Info:\n");
842			printf(
843			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
844			    , "Getattr", "Setattr", "Lookup", "Readlink",
845			    "Read", "Write", "Create", "Remove");
846		}
847		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
848		    ext_nfsstats.srvrpccnt[NFSV4OP_GETATTR],
849		    ext_nfsstats.srvrpccnt[NFSV4OP_SETATTR],
850		    ext_nfsstats.srvrpccnt[NFSV4OP_LOOKUP],
851		    ext_nfsstats.srvrpccnt[NFSV4OP_READLINK],
852		    ext_nfsstats.srvrpccnt[NFSV4OP_READ],
853		    ext_nfsstats.srvrpccnt[NFSV4OP_WRITE],
854		    ext_nfsstats.srvrpccnt[NFSV4OP_V3CREATE],
855		    ext_nfsstats.srvrpccnt[NFSV4OP_REMOVE]);
856		if (printtitle)
857			printf(
858			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
859			    , "Rename", "Link", "Symlink", "Mkdir", "Rmdir",
860			    "Readdir", "RdirPlus", "Access");
861		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
862		    ext_nfsstats.srvrpccnt[NFSV4OP_RENAME],
863		    ext_nfsstats.srvrpccnt[NFSV4OP_LINK],
864		    ext_nfsstats.srvrpccnt[NFSV4OP_SYMLINK],
865		    ext_nfsstats.srvrpccnt[NFSV4OP_MKDIR],
866		    ext_nfsstats.srvrpccnt[NFSV4OP_RMDIR],
867		    ext_nfsstats.srvrpccnt[NFSV4OP_READDIR],
868		    ext_nfsstats.srvrpccnt[NFSV4OP_READDIRPLUS],
869		    ext_nfsstats.srvrpccnt[NFSV4OP_ACCESS]);
870		if (printtitle)
871			printf(
872			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
873			    , "Mknod", "Fsstat", "Fsinfo", "PathConf",
874			    "Commit", "LookupP", "SetClId", "SetClIdCf");
875		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
876		    ext_nfsstats.srvrpccnt[NFSV4OP_MKNOD],
877		    ext_nfsstats.srvrpccnt[NFSV4OP_FSSTAT],
878		    ext_nfsstats.srvrpccnt[NFSV4OP_FSINFO],
879		    ext_nfsstats.srvrpccnt[NFSV4OP_PATHCONF],
880		    ext_nfsstats.srvrpccnt[NFSV4OP_COMMIT],
881		    ext_nfsstats.srvrpccnt[NFSV4OP_LOOKUPP],
882		    ext_nfsstats.srvrpccnt[NFSV4OP_SETCLIENTID],
883		    ext_nfsstats.srvrpccnt[NFSV4OP_SETCLIENTIDCFRM]);
884		if (printtitle)
885			printf(
886			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
887			    , "Open", "OpenAttr", "OpenDwnGr", "OpenCfrm",
888			    "DelePurge", "DeleRet", "GetFH", "Lock");
889		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
890		    ext_nfsstats.srvrpccnt[NFSV4OP_OPEN],
891		    ext_nfsstats.srvrpccnt[NFSV4OP_OPENATTR],
892		    ext_nfsstats.srvrpccnt[NFSV4OP_OPENDOWNGRADE],
893		    ext_nfsstats.srvrpccnt[NFSV4OP_OPENCONFIRM],
894		    ext_nfsstats.srvrpccnt[NFSV4OP_DELEGPURGE],
895		    ext_nfsstats.srvrpccnt[NFSV4OP_DELEGRETURN],
896		    ext_nfsstats.srvrpccnt[NFSV4OP_GETFH],
897		    ext_nfsstats.srvrpccnt[NFSV4OP_LOCK]);
898		if (printtitle)
899			printf(
900			    "%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n"
901			    , "LockT", "LockU", "Close", "Verify", "NVerify",
902			    "PutFH", "PutPubFH", "PutRootFH");
903		printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
904		    ext_nfsstats.srvrpccnt[NFSV4OP_LOCKT],
905		    ext_nfsstats.srvrpccnt[NFSV4OP_LOCKU],
906		    ext_nfsstats.srvrpccnt[NFSV4OP_CLOSE],
907		    ext_nfsstats.srvrpccnt[NFSV4OP_VERIFY],
908		    ext_nfsstats.srvrpccnt[NFSV4OP_NVERIFY],
909		    ext_nfsstats.srvrpccnt[NFSV4OP_PUTFH],
910		    ext_nfsstats.srvrpccnt[NFSV4OP_PUTPUBFH],
911		    ext_nfsstats.srvrpccnt[NFSV4OP_PUTROOTFH]);
912		if (printtitle)
913			printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
914			    "Renew", "RestoreFH", "SaveFH", "Secinfo",
915			    "RelLckOwn", "V4Create");
916		printf("%9d %9d %9d %9d %9d %9d\n",
917		    ext_nfsstats.srvrpccnt[NFSV4OP_RENEW],
918		    ext_nfsstats.srvrpccnt[NFSV4OP_RESTOREFH],
919		    ext_nfsstats.srvrpccnt[NFSV4OP_SAVEFH],
920		    ext_nfsstats.srvrpccnt[NFSV4OP_SECINFO],
921		    ext_nfsstats.srvrpccnt[NFSV4OP_RELEASELCKOWN],
922		    ext_nfsstats.srvrpccnt[NFSV4OP_CREATE]);
923		if (printtitle) {
924			printf("Server:\n");
925			printf("%9.9s %9.9s %9.9s\n",
926			    "Retfailed", "Faults", "Clients");
927		}
928		printf("%9d %9d %9d\n",
929		    ext_nfsstats.srv_errs, ext_nfsstats.srvrpc_errs,
930		    ext_nfsstats.srvclients);
931		if (printtitle)
932			printf("%9.9s %9.9s %9.9s %9.9s %9.9s \n",
933			    "OpenOwner", "Opens", "LockOwner",
934			    "Locks", "Delegs");
935		printf("%9d %9d %9d %9d %9d \n",
936		    ext_nfsstats.srvopenowners,
937		    ext_nfsstats.srvopens,
938		    ext_nfsstats.srvlockowners,
939		    ext_nfsstats.srvlocks,
940		    ext_nfsstats.srvdelegates);
941		if (printtitle) {
942			printf("Server Cache Stats:\n");
943			printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
944			    "Inprog", "Idem", "Non-idem", "Misses",
945			    "CacheSize", "TCPPeak");
946		}
947		printf("%9d %9d %9d %9d %9d %9d\n",
948		    ext_nfsstats.srvcache_inproghits,
949		    ext_nfsstats.srvcache_idemdonehits,
950		    ext_nfsstats.srvcache_nonidemdonehits,
951		    ext_nfsstats.srvcache_misses,
952		    ext_nfsstats.srvcache_size,
953		    ext_nfsstats.srvcache_tcppeak);
954	}
955}
956
957/*
958 * Print a running summary of nfs statistics for the experimental client and/or
959 * server.
960 * Repeat display every interval seconds, showing statistics
961 * collected over that interval.  Assumes that interval is non-zero.
962 * First line printed at top of screen is always cumulative.
963 */
964void
965exp_sidewaysintpr(u_int interval, int clientOnly, int serverOnly)
966{
967	struct ext_nfsstats nfsstats, lastst, *ext_nfsstatsp;
968	int hdrcnt = 1;
969
970	ext_nfsstatsp = &lastst;
971	if (nfssvc(NFSSVC_GETSTATS, ext_nfsstatsp) < 0)
972		err(1, "Can't get stats");
973	sleep(interval);
974
975	for (;;) {
976		ext_nfsstatsp = &nfsstats;
977		if (nfssvc(NFSSVC_GETSTATS, ext_nfsstatsp) < 0)
978			err(1, "Can't get stats");
979
980		if (--hdrcnt == 0) {
981			printhdr(clientOnly, serverOnly);
982			if (clientOnly && serverOnly)
983				hdrcnt = 10;
984			else
985				hdrcnt = 20;
986		}
987		if (clientOnly) {
988		    printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
989			((clientOnly && serverOnly) ? "Client:" : ""),
990			DELTA(rpccnt[NFSPROC_GETATTR]),
991			DELTA(rpccnt[NFSPROC_LOOKUP]),
992			DELTA(rpccnt[NFSPROC_READLINK]),
993			DELTA(rpccnt[NFSPROC_READ]),
994			DELTA(rpccnt[NFSPROC_WRITE]),
995			DELTA(rpccnt[NFSPROC_RENAME]),
996			DELTA(rpccnt[NFSPROC_ACCESS]),
997			DELTA(rpccnt[NFSPROC_READDIR]) +
998			DELTA(rpccnt[NFSPROC_READDIRPLUS])
999		    );
1000		    if (widemode) {
1001			    printf(" %s %s %s %s %s %s",
1002				sperc1(DELTA(attrcache_hits),
1003				    DELTA(attrcache_misses)),
1004				sperc1(DELTA(lookupcache_hits),
1005				    DELTA(lookupcache_misses)),
1006				sperc2(DELTA(biocache_reads),
1007				    DELTA(read_bios)),
1008				sperc2(DELTA(biocache_writes),
1009				    DELTA(write_bios)),
1010				sperc1(DELTA(accesscache_hits),
1011				    DELTA(accesscache_misses)),
1012				sperc2(DELTA(biocache_readdirs),
1013				    DELTA(readdir_bios))
1014			    );
1015		    }
1016		    printf("\n");
1017		}
1018		if (serverOnly) {
1019		    printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
1020			((clientOnly && serverOnly) ? "Server:" : ""),
1021			DELTA(srvrpccnt[NFSV4OP_GETATTR]),
1022			DELTA(srvrpccnt[NFSV4OP_LOOKUP]),
1023			DELTA(srvrpccnt[NFSV4OP_READLINK]),
1024			DELTA(srvrpccnt[NFSV4OP_READ]),
1025			DELTA(srvrpccnt[NFSV4OP_WRITE]),
1026			DELTA(srvrpccnt[NFSV4OP_RENAME]),
1027			DELTA(srvrpccnt[NFSV4OP_ACCESS]),
1028			DELTA(srvrpccnt[NFSV4OP_READDIR]) +
1029			DELTA(srvrpccnt[NFSV4OP_READDIRPLUS]));
1030		    printf("\n");
1031		}
1032		lastst = nfsstats;
1033		fflush(stdout);
1034		sleep(interval);
1035	}
1036	/*NOTREACHED*/
1037}
1038
1039