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nfsstat.c revision 1.21.12.2
      1  1.21.12.2  yamt /*	$NetBSD: nfsstat.c,v 1.21.12.2 2007/08/05 22:06:15 yamt Exp $	*/
      2  1.21.12.2  yamt 
      3  1.21.12.2  yamt /*
      4  1.21.12.2  yamt  * Copyright (c) 1983, 1989, 1993
      5  1.21.12.2  yamt  *	The Regents of the University of California.  All rights reserved.
      6  1.21.12.2  yamt  *
      7  1.21.12.2  yamt  * This code is derived from software contributed to Berkeley by
      8  1.21.12.2  yamt  * Rick Macklem at The University of Guelph.
      9  1.21.12.2  yamt  *
     10  1.21.12.2  yamt  * Redistribution and use in source and binary forms, with or without
     11  1.21.12.2  yamt  * modification, are permitted provided that the following conditions
     12  1.21.12.2  yamt  * are met:
     13  1.21.12.2  yamt  * 1. Redistributions of source code must retain the above copyright
     14  1.21.12.2  yamt  *    notice, this list of conditions and the following disclaimer.
     15  1.21.12.2  yamt  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.21.12.2  yamt  *    notice, this list of conditions and the following disclaimer in the
     17  1.21.12.2  yamt  *    documentation and/or other materials provided with the distribution.
     18  1.21.12.2  yamt  * 3. Neither the name of the University nor the names of its contributors
     19  1.21.12.2  yamt  *    may be used to endorse or promote products derived from this software
     20  1.21.12.2  yamt  *    without specific prior written permission.
     21  1.21.12.2  yamt  *
     22  1.21.12.2  yamt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  1.21.12.2  yamt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  1.21.12.2  yamt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  1.21.12.2  yamt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  1.21.12.2  yamt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  1.21.12.2  yamt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  1.21.12.2  yamt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  1.21.12.2  yamt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  1.21.12.2  yamt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  1.21.12.2  yamt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  1.21.12.2  yamt  * SUCH DAMAGE.
     33  1.21.12.2  yamt  */
     34  1.21.12.2  yamt 
     35  1.21.12.2  yamt #include <sys/cdefs.h>
     36  1.21.12.2  yamt #ifndef lint
     37  1.21.12.2  yamt __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1993\n\
     38  1.21.12.2  yamt 	The Regents of the University of California.  All rights reserved.\n");
     39  1.21.12.2  yamt #endif /* not lint */
     40  1.21.12.2  yamt 
     41  1.21.12.2  yamt #ifndef lint
     42  1.21.12.2  yamt #if 0
     43  1.21.12.2  yamt static char sccsid[] = "from: @(#)nfsstat.c	8.1 (Berkeley) 6/6/93";
     44  1.21.12.2  yamt #else
     45  1.21.12.2  yamt __RCSID("$NetBSD: nfsstat.c,v 1.21.12.2 2007/08/05 22:06:15 yamt Exp $");
     46  1.21.12.2  yamt #endif
     47  1.21.12.2  yamt #endif /* not lint */
     48  1.21.12.2  yamt 
     49  1.21.12.2  yamt #include <sys/param.h>
     50  1.21.12.2  yamt #include <sys/mount.h>
     51  1.21.12.2  yamt #include <sys/sysctl.h>
     52  1.21.12.2  yamt 
     53  1.21.12.2  yamt #include <nfs/rpcv2.h>
     54  1.21.12.2  yamt #include <nfs/nfsproto.h>
     55  1.21.12.2  yamt #include <nfs/nfs.h>
     56  1.21.12.2  yamt 
     57  1.21.12.2  yamt #include <ctype.h>
     58  1.21.12.2  yamt #include <err.h>
     59  1.21.12.2  yamt #include <errno.h>
     60  1.21.12.2  yamt #include <fcntl.h>
     61  1.21.12.2  yamt #include <kvm.h>
     62  1.21.12.2  yamt #include <limits.h>
     63  1.21.12.2  yamt #include <nlist.h>
     64  1.21.12.2  yamt #include <paths.h>
     65  1.21.12.2  yamt #include <signal.h>
     66  1.21.12.2  yamt #include <stdlib.h>
     67  1.21.12.2  yamt #include <stdio.h>
     68  1.21.12.2  yamt #include <string.h>
     69  1.21.12.2  yamt #include <unistd.h>
     70  1.21.12.2  yamt 
     71  1.21.12.2  yamt struct nlist nl[] = {
     72  1.21.12.2  yamt #define	N_NFSSTAT	0
     73  1.21.12.2  yamt 	{ "_nfsstats" },
     74  1.21.12.2  yamt 	{ "" },
     75  1.21.12.2  yamt };
     76  1.21.12.2  yamt 
     77  1.21.12.2  yamt #define	MASK(a)	(1 << NFSPROC_##a)
     78  1.21.12.2  yamt #define ALLMASK								\
     79  1.21.12.2  yamt 	(MASK(GETATTR) | MASK(SETATTR) | MASK(LOOKUP) | MASK(READ) |	\
     80  1.21.12.2  yamt 	MASK(WRITE) | MASK(RENAME)| MASK(ACCESS) | MASK(READDIR) |	\
     81  1.21.12.2  yamt 	MASK(READDIRPLUS))
     82  1.21.12.2  yamt #define	OTHERMASK	(((1 << NFS_NPROCS) - 1) & ~ALLMASK)
     83  1.21.12.2  yamt const struct shortprocs {
     84  1.21.12.2  yamt 	int mask;
     85  1.21.12.2  yamt 	const char *name;
     86  1.21.12.2  yamt } shortprocs[] = {
     87  1.21.12.2  yamt 	{MASK(GETATTR),	"Getattr"},
     88  1.21.12.2  yamt 	{MASK(SETATTR),	"Setattr"},
     89  1.21.12.2  yamt 	{MASK(LOOKUP),	"Lookup"},
     90  1.21.12.2  yamt 	{MASK(READ),	"Read"},
     91  1.21.12.2  yamt 	{MASK(WRITE),	"Write"},
     92  1.21.12.2  yamt 	{MASK(RENAME),	"Rename"},
     93  1.21.12.2  yamt 	{MASK(ACCESS),	"Access"},
     94  1.21.12.2  yamt 	{MASK(READDIR) | MASK(READDIRPLUS), "Readdir"},
     95  1.21.12.2  yamt 	{OTHERMASK, "Others"},
     96  1.21.12.2  yamt };
     97  1.21.12.2  yamt 
     98  1.21.12.2  yamt #define	NSHORTPROC	(sizeof(shortprocs)/sizeof(shortprocs[0]))
     99  1.21.12.2  yamt 
    100  1.21.12.2  yamt void	catchalarm __P((int));
    101  1.21.12.2  yamt void	getstats __P((struct nfsstats *));
    102  1.21.12.2  yamt void	intpr __P((void));
    103  1.21.12.2  yamt int	main __P((int, char **));
    104  1.21.12.2  yamt void	printhdr __P((void));
    105  1.21.12.2  yamt void	sidewaysintpr __P((u_int));
    106  1.21.12.2  yamt void	usage __P((void));
    107  1.21.12.2  yamt 
    108  1.21.12.2  yamt kvm_t  *kd;
    109  1.21.12.2  yamt int     printall, clientinfo, serverinfo;
    110  1.21.12.2  yamt u_long	nfsstataddr;
    111  1.21.12.2  yamt 
    112  1.21.12.2  yamt int
    113  1.21.12.2  yamt main(argc, argv)
    114  1.21.12.2  yamt 	int argc;
    115  1.21.12.2  yamt 	char **argv;
    116  1.21.12.2  yamt {
    117  1.21.12.2  yamt 	u_int interval;
    118  1.21.12.2  yamt 	int ch;
    119  1.21.12.2  yamt 	char *memf, *nlistf;
    120  1.21.12.2  yamt 	char errbuf[_POSIX2_LINE_MAX];
    121  1.21.12.2  yamt 
    122  1.21.12.2  yamt 	interval = 0;
    123  1.21.12.2  yamt 	memf = nlistf = NULL;
    124  1.21.12.2  yamt 	printall = 1;
    125  1.21.12.2  yamt 	while ((ch = getopt(argc, argv, "M:N:w:cs")) != -1)
    126  1.21.12.2  yamt 		switch(ch) {
    127  1.21.12.2  yamt 		case 'M':
    128  1.21.12.2  yamt 			memf = optarg;
    129  1.21.12.2  yamt 			break;
    130  1.21.12.2  yamt 		case 'N':
    131  1.21.12.2  yamt 			nlistf = optarg;
    132  1.21.12.2  yamt 			break;
    133  1.21.12.2  yamt 		case 'w':
    134  1.21.12.2  yamt 			interval = atoi(optarg);
    135  1.21.12.2  yamt 			break;
    136  1.21.12.2  yamt 		case 's':
    137  1.21.12.2  yamt 		        serverinfo = 1;
    138  1.21.12.2  yamt 			printall = 0;
    139  1.21.12.2  yamt 			break;
    140  1.21.12.2  yamt 		case 'c':
    141  1.21.12.2  yamt 		        clientinfo = 1;
    142  1.21.12.2  yamt 			printall = 0;
    143  1.21.12.2  yamt 			break;
    144  1.21.12.2  yamt 		case '?':
    145  1.21.12.2  yamt 		default:
    146  1.21.12.2  yamt 			usage();
    147  1.21.12.2  yamt 		}
    148  1.21.12.2  yamt 	argc -= optind;
    149  1.21.12.2  yamt 	argv += optind;
    150  1.21.12.2  yamt 
    151  1.21.12.2  yamt #define	BACKWARD_COMPATIBILITY
    152  1.21.12.2  yamt #ifdef	BACKWARD_COMPATIBILITY
    153  1.21.12.2  yamt 	if (*argv) {
    154  1.21.12.2  yamt 		interval = atoi(*argv);
    155  1.21.12.2  yamt 		if (*++argv) {
    156  1.21.12.2  yamt 			nlistf = *argv;
    157  1.21.12.2  yamt 			if (*++argv)
    158  1.21.12.2  yamt 				memf = *argv;
    159  1.21.12.2  yamt 		}
    160  1.21.12.2  yamt 	}
    161  1.21.12.2  yamt #endif
    162  1.21.12.2  yamt 	if (nlistf || memf) {
    163  1.21.12.2  yamt 		if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf))
    164  1.21.12.2  yamt 		    == 0)
    165  1.21.12.2  yamt 			errx(1, "kvm_openfiles: %s", errbuf);
    166  1.21.12.2  yamt 
    167  1.21.12.2  yamt 		if (kvm_nlist(kd, nl) != 0)
    168  1.21.12.2  yamt 			errx(1, "kvm_nlist: can't get names");
    169  1.21.12.2  yamt 		nfsstataddr = nl[N_NFSSTAT].n_value;
    170  1.21.12.2  yamt 	} else {
    171  1.21.12.2  yamt 		kd = NULL;
    172  1.21.12.2  yamt 	}
    173  1.21.12.2  yamt 
    174  1.21.12.2  yamt 	if (interval)
    175  1.21.12.2  yamt 		sidewaysintpr(interval);
    176  1.21.12.2  yamt 	else
    177  1.21.12.2  yamt 		intpr();
    178  1.21.12.2  yamt 	exit(0);
    179  1.21.12.2  yamt }
    180  1.21.12.2  yamt 
    181  1.21.12.2  yamt void
    182  1.21.12.2  yamt getstats(ns)
    183  1.21.12.2  yamt 	struct nfsstats *ns;
    184  1.21.12.2  yamt {
    185  1.21.12.2  yamt 	size_t size;
    186  1.21.12.2  yamt 	int mib[3];
    187  1.21.12.2  yamt 
    188  1.21.12.2  yamt 	if (kd) {
    189  1.21.12.2  yamt 		if (kvm_read(kd, (u_long)nfsstataddr, ns, sizeof(*ns))
    190  1.21.12.2  yamt 		    != sizeof(*ns))
    191  1.21.12.2  yamt 			errx(1, "kvm_read failed");
    192  1.21.12.2  yamt 	} else {
    193  1.21.12.2  yamt 		mib[0] = CTL_VFS;
    194  1.21.12.2  yamt 		mib[1] = 2;	/* XXX from CTL_VFS_NAMES in <sys/mount.h> */
    195  1.21.12.2  yamt 		mib[2] = NFS_NFSSTATS;
    196  1.21.12.2  yamt 
    197  1.21.12.2  yamt 		size = sizeof(*ns);
    198  1.21.12.2  yamt 		if (sysctl(mib, 3, ns, &size, NULL, 0) == -1)
    199  1.21.12.2  yamt 			err(1, "sysctl(NFS_NFSSTATS) failed");
    200  1.21.12.2  yamt 	}
    201  1.21.12.2  yamt }
    202  1.21.12.2  yamt 
    203  1.21.12.2  yamt /*
    204  1.21.12.2  yamt  * Print a description of the nfs stats.
    205  1.21.12.2  yamt  */
    206  1.21.12.2  yamt void
    207  1.21.12.2  yamt intpr()
    208  1.21.12.2  yamt {
    209  1.21.12.2  yamt 	struct nfsstats nfsstats;
    210  1.21.12.2  yamt 	int64_t	total;
    211  1.21.12.2  yamt 	int	i;
    212  1.21.12.2  yamt 
    213  1.21.12.2  yamt #define PCT(x,y)	((y) == 0 ? 0 : (int)((int64_t)(x) * 100 / (y)))
    214  1.21.12.2  yamt #define NUMPCT(x,y)	(x), PCT(x, (x)+(y))
    215  1.21.12.2  yamt #define	RPCSTAT(x)	(x), PCT(x, total)
    216  1.21.12.2  yamt 
    217  1.21.12.2  yamt 	getstats(&nfsstats);
    218  1.21.12.2  yamt 
    219  1.21.12.2  yamt 	if (printall || clientinfo) {
    220  1.21.12.2  yamt 		total = 0;
    221  1.21.12.2  yamt 		for (i = 0; i < NFS_NPROCS; i++)
    222  1.21.12.2  yamt 			total += nfsstats.rpccnt[i];
    223  1.21.12.2  yamt 		printf("Client Info:\n");
    224  1.21.12.2  yamt 		printf("RPC Counts: (%lld call%s)\n", (long long)total,
    225  1.21.12.2  yamt 		    total == 1 ? "" : "s");
    226  1.21.12.2  yamt 
    227  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    228  1.21.12.2  yamt 		    "null", "getattr", "setattr", "lookup", "access");
    229  1.21.12.2  yamt 		printf(
    230  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    231  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_NULL]),
    232  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_GETATTR]),
    233  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_SETATTR]),
    234  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_LOOKUP]),
    235  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_ACCESS]));
    236  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    237  1.21.12.2  yamt 		    "readlink", "read", "write", "create", "mkdir");
    238  1.21.12.2  yamt 		printf(
    239  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    240  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_READLINK]),
    241  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_READ]),
    242  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_WRITE]),
    243  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_CREATE]),
    244  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_MKDIR]));
    245  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    246  1.21.12.2  yamt 		    "symlink", "mknod", "remove", "rmdir", "rename");
    247  1.21.12.2  yamt 		printf(
    248  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    249  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_SYMLINK]),
    250  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_MKNOD]),
    251  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_REMOVE]),
    252  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_RMDIR]),
    253  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_RENAME]));
    254  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    255  1.21.12.2  yamt 		    "link", "readdir", "readdirplus", "fsstat", "fsinfo");
    256  1.21.12.2  yamt 		printf(
    257  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    258  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_LINK]),
    259  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_READDIR]),
    260  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_READDIRPLUS]),
    261  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_FSSTAT]),
    262  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_FSINFO]));
    263  1.21.12.2  yamt 		printf("%10s  %14s\n",
    264  1.21.12.2  yamt 		    "pathconf", "commit");
    265  1.21.12.2  yamt 		printf("%10d %2d%%  %10d %2d%%\n",
    266  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_PATHCONF]),
    267  1.21.12.2  yamt 		    RPCSTAT(nfsstats.rpccnt[NFSPROC_COMMIT]));
    268  1.21.12.2  yamt 
    269  1.21.12.2  yamt 		printf("RPC Info:\n");
    270  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    271  1.21.12.2  yamt 		    "timeout", "invalid", "unexpected", "retries", "requests");
    272  1.21.12.2  yamt 		printf("%10d  %14d  %14d  %14d  %14d\n",
    273  1.21.12.2  yamt 		    nfsstats.rpctimeouts,
    274  1.21.12.2  yamt 		    nfsstats.rpcinvalid,
    275  1.21.12.2  yamt 		    nfsstats.rpcunexpected,
    276  1.21.12.2  yamt 		    nfsstats.rpcretries,
    277  1.21.12.2  yamt 		    nfsstats.rpcrequests);
    278  1.21.12.2  yamt 
    279  1.21.12.2  yamt 		printf("Cache Info:\n");
    280  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    281  1.21.12.2  yamt 		    "attrcache", "lookupcache", "read", "write", "readlink");
    282  1.21.12.2  yamt 		printf(
    283  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    284  1.21.12.2  yamt 		    NUMPCT(nfsstats.attrcache_hits,
    285  1.21.12.2  yamt 			nfsstats.attrcache_misses),
    286  1.21.12.2  yamt 		    NUMPCT(nfsstats.lookupcache_hits,
    287  1.21.12.2  yamt 			nfsstats.lookupcache_misses),
    288  1.21.12.2  yamt 		    NUMPCT(nfsstats.biocache_reads - nfsstats.read_bios,
    289  1.21.12.2  yamt 			nfsstats.read_bios),
    290  1.21.12.2  yamt 		    NUMPCT(nfsstats.biocache_writes - nfsstats.write_bios,
    291  1.21.12.2  yamt 			nfsstats.write_bios),
    292  1.21.12.2  yamt 		    NUMPCT(nfsstats.biocache_readlinks - nfsstats.readlink_bios,
    293  1.21.12.2  yamt 			nfsstats.readlink_bios));
    294  1.21.12.2  yamt 		printf("%10s  %14s\n",
    295  1.21.12.2  yamt 		    "readdir", "direofcache");
    296  1.21.12.2  yamt 		printf("%10d %2d%%  %10d %2d%%\n",
    297  1.21.12.2  yamt 		    NUMPCT(nfsstats.biocache_readdirs - nfsstats.readdir_bios,
    298  1.21.12.2  yamt 			nfsstats.readdir_bios),
    299  1.21.12.2  yamt 		    NUMPCT(nfsstats.direofcache_hits,
    300  1.21.12.2  yamt 			nfsstats.direofcache_misses));
    301  1.21.12.2  yamt 	}
    302  1.21.12.2  yamt 
    303  1.21.12.2  yamt 	if (printall || (clientinfo && serverinfo))
    304  1.21.12.2  yamt 		printf("\n");
    305  1.21.12.2  yamt 
    306  1.21.12.2  yamt 	if (printall || serverinfo) {
    307  1.21.12.2  yamt 		total = 0;
    308  1.21.12.2  yamt 		for (i = 0; i < NFS_NPROCS; i++)
    309  1.21.12.2  yamt 			total += nfsstats.srvrpccnt[i];
    310  1.21.12.2  yamt 		printf("Server Info:\n");
    311  1.21.12.2  yamt 		printf("RPC Counts: (%lld call%s)\n", (long long)total,
    312  1.21.12.2  yamt 		    total == 1 ? "" : "s");
    313  1.21.12.2  yamt 
    314  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    315  1.21.12.2  yamt 		    "null", "getattr", "setattr", "lookup", "access");
    316  1.21.12.2  yamt 		printf(
    317  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    318  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_NULL]),
    319  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_GETATTR]),
    320  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_SETATTR]),
    321  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_LOOKUP]),
    322  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_ACCESS]));
    323  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    324  1.21.12.2  yamt 		    "readlink", "read", "write", "create", "mkdir");
    325  1.21.12.2  yamt 		printf(
    326  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    327  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_READLINK]),
    328  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_READ]),
    329  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_WRITE]),
    330  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_CREATE]),
    331  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_MKDIR]));
    332  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    333  1.21.12.2  yamt 		    "symlink", "mknod", "remove", "rmdir", "rename");
    334  1.21.12.2  yamt 		printf(
    335  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    336  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_SYMLINK]),
    337  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_MKNOD]),
    338  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_REMOVE]),
    339  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_RMDIR]),
    340  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_RENAME]));
    341  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s  %14s\n",
    342  1.21.12.2  yamt 		    "link", "readdir", "readdirplus", "fsstat", "fsinfo");
    343  1.21.12.2  yamt 		printf(
    344  1.21.12.2  yamt 	    "%10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%  %10d %2d%%\n",
    345  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_LINK]),
    346  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_READDIR]),
    347  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]),
    348  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_FSSTAT]),
    349  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_FSINFO]));
    350  1.21.12.2  yamt 		printf("%10s  %14s\n",
    351  1.21.12.2  yamt 		    "pathconf", "commit");
    352  1.21.12.2  yamt 		printf("%10d %2d%%  %10d %2d%%\n",
    353  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_PATHCONF]),
    354  1.21.12.2  yamt 		    RPCSTAT(nfsstats.srvrpccnt[NFSPROC_COMMIT]));
    355  1.21.12.2  yamt 
    356  1.21.12.2  yamt 		printf("Server Errors:\n");
    357  1.21.12.2  yamt 		printf("%10s  %14s\n",
    358  1.21.12.2  yamt 		    "RPC errors", "faults");
    359  1.21.12.2  yamt 		printf("%10d  %14d\n",
    360  1.21.12.2  yamt 		    nfsstats.srvrpc_errs,
    361  1.21.12.2  yamt 		    nfsstats.srv_errs);
    362  1.21.12.2  yamt 		printf("Server Cache Stats:\n");
    363  1.21.12.2  yamt 		printf("%10s  %14s  %14s  %14s\n",
    364  1.21.12.2  yamt 		    "inprogress", "idem", "non-idem", "misses");
    365  1.21.12.2  yamt 		printf("%10d  %14d  %14d  %14d\n",
    366  1.21.12.2  yamt 		    nfsstats.srvcache_inproghits,
    367  1.21.12.2  yamt 		    nfsstats.srvcache_idemdonehits,
    368  1.21.12.2  yamt 		    nfsstats.srvcache_nonidemdonehits,
    369  1.21.12.2  yamt 		    nfsstats.srvcache_misses);
    370  1.21.12.2  yamt 		printf("Server Write Gathering:\n");
    371  1.21.12.2  yamt 		printf("%10s  %14s  %14s\n",
    372  1.21.12.2  yamt 		    "writes", "write RPC", "OPs saved");
    373  1.21.12.2  yamt 		printf("%10d  %14d  %14d %2d%%\n",
    374  1.21.12.2  yamt 		    nfsstats.srvvop_writes,
    375  1.21.12.2  yamt 		    nfsstats.srvrpccnt[NFSPROC_WRITE],
    376  1.21.12.2  yamt 		    NUMPCT(
    377  1.21.12.2  yamt 		      nfsstats.srvrpccnt[NFSPROC_WRITE]-nfsstats.srvvop_writes,
    378  1.21.12.2  yamt 		      nfsstats.srvrpccnt[NFSPROC_WRITE]));
    379  1.21.12.2  yamt 	}
    380  1.21.12.2  yamt }
    381  1.21.12.2  yamt 
    382  1.21.12.2  yamt u_char	signalled;			/* set if alarm goes off "early" */
    383  1.21.12.2  yamt 
    384  1.21.12.2  yamt /*
    385  1.21.12.2  yamt  * Print a running summary of nfs statistics.
    386  1.21.12.2  yamt  * Repeat display every interval seconds, showing statistics
    387  1.21.12.2  yamt  * collected over that interval.  Assumes that interval is non-zero.
    388  1.21.12.2  yamt  * First line printed at top of screen is always cumulative.
    389  1.21.12.2  yamt  */
    390  1.21.12.2  yamt void
    391  1.21.12.2  yamt sidewaysintpr(interval)
    392  1.21.12.2  yamt 	u_int interval;
    393  1.21.12.2  yamt {
    394  1.21.12.2  yamt 	struct nfsstats nfsstats;
    395  1.21.12.2  yamt 	int hdrcnt, oldmask;
    396  1.21.12.2  yamt 	struct stats {
    397  1.21.12.2  yamt 		int client[NSHORTPROC];
    398  1.21.12.2  yamt 		int server[NSHORTPROC];
    399  1.21.12.2  yamt 	} current, last;
    400  1.21.12.2  yamt 
    401  1.21.12.2  yamt 	(void)signal(SIGALRM, catchalarm);
    402  1.21.12.2  yamt 	signalled = 0;
    403  1.21.12.2  yamt 	(void)alarm(interval);
    404  1.21.12.2  yamt 	memset(&last, 0, sizeof(last));
    405  1.21.12.2  yamt 
    406  1.21.12.2  yamt 	for (hdrcnt = 1;;) {
    407  1.21.12.2  yamt 		int i;
    408  1.21.12.2  yamt 
    409  1.21.12.2  yamt 		if (!--hdrcnt) {
    410  1.21.12.2  yamt 			printhdr();
    411  1.21.12.2  yamt 			hdrcnt = 20;
    412  1.21.12.2  yamt 		}
    413  1.21.12.2  yamt 		getstats(&nfsstats);
    414  1.21.12.2  yamt 		memset(&current, 0, sizeof(current));
    415  1.21.12.2  yamt 		for (i = 0; i < NSHORTPROC; i++) {
    416  1.21.12.2  yamt 			int mask = shortprocs[i].mask;
    417  1.21.12.2  yamt 			int idx;
    418  1.21.12.2  yamt 
    419  1.21.12.2  yamt 			while ((idx = ffs(mask)) != 0) {
    420  1.21.12.2  yamt 				idx--;
    421  1.21.12.2  yamt 				mask &= ~(1 << idx);
    422  1.21.12.2  yamt 				current.client[i] += nfsstats.rpccnt[idx];
    423  1.21.12.2  yamt 				current.server[i] += nfsstats.srvrpccnt[idx];
    424  1.21.12.2  yamt 			}
    425  1.21.12.2  yamt 		}
    426  1.21.12.2  yamt 
    427  1.21.12.2  yamt 		if (printall || clientinfo) {
    428  1.21.12.2  yamt 			printf("Client:");
    429  1.21.12.2  yamt 			for (i = 0; i < NSHORTPROC; i++)
    430  1.21.12.2  yamt 				printf(" %7d",
    431  1.21.12.2  yamt 				    current.client[i] - last.client[i]);
    432  1.21.12.2  yamt 			printf("\n");
    433  1.21.12.2  yamt 		}
    434  1.21.12.2  yamt 		if (printall || serverinfo) {
    435  1.21.12.2  yamt 			printf("Server:");
    436  1.21.12.2  yamt 			for (i = 0; i < NSHORTPROC; i++)
    437  1.21.12.2  yamt 				printf(" %7d",
    438  1.21.12.2  yamt 				    current.server[i] - last.server[i]);
    439  1.21.12.2  yamt 			printf("\n");
    440  1.21.12.2  yamt 		}
    441  1.21.12.2  yamt 		memcpy(&last, &current, sizeof(last));
    442  1.21.12.2  yamt 		fflush(stdout);
    443  1.21.12.2  yamt 		oldmask = sigblock(sigmask(SIGALRM));
    444  1.21.12.2  yamt 		if (!signalled)
    445  1.21.12.2  yamt 			sigpause(0);
    446  1.21.12.2  yamt 		sigsetmask(oldmask);
    447  1.21.12.2  yamt 		signalled = 0;
    448  1.21.12.2  yamt 		(void)alarm(interval);
    449  1.21.12.2  yamt 	}
    450  1.21.12.2  yamt 	/*NOTREACHED*/
    451  1.21.12.2  yamt }
    452  1.21.12.2  yamt 
    453  1.21.12.2  yamt void
    454  1.21.12.2  yamt printhdr()
    455  1.21.12.2  yamt {
    456  1.21.12.2  yamt 	int i;
    457  1.21.12.2  yamt 
    458  1.21.12.2  yamt 	printf("        ");
    459  1.21.12.2  yamt 	for (i = 0; i < NSHORTPROC; i++)
    460  1.21.12.2  yamt 		printf("%7.7s ", shortprocs[i].name);
    461  1.21.12.2  yamt 	printf("\n");
    462  1.21.12.2  yamt 	fflush(stdout);
    463  1.21.12.2  yamt }
    464  1.21.12.2  yamt 
    465  1.21.12.2  yamt /*
    466  1.21.12.2  yamt  * Called if an interval expires before sidewaysintpr has completed a loop.
    467  1.21.12.2  yamt  * Sets a flag to not wait for the alarm.
    468  1.21.12.2  yamt  */
    469  1.21.12.2  yamt void
    470  1.21.12.2  yamt catchalarm(dummy)
    471  1.21.12.2  yamt 	int dummy;
    472  1.21.12.2  yamt {
    473  1.21.12.2  yamt 
    474  1.21.12.2  yamt 	signalled = 1;
    475  1.21.12.2  yamt }
    476  1.21.12.2  yamt 
    477  1.21.12.2  yamt void
    478  1.21.12.2  yamt usage()
    479  1.21.12.2  yamt {
    480  1.21.12.2  yamt 
    481  1.21.12.2  yamt 	(void)fprintf(stderr,
    482  1.21.12.2  yamt 		  "usage: nfsstat [-cs] [-M core] [-N system] [-w interval]\n");
    483  1.21.12.2  yamt 	exit(1);
    484  1.21.12.2  yamt }
    485