Net2/usr/src/usr.bin/nfsstat/nfsstat.c
/*
* Copyright (c) 1983, 1989 Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1983, 1989 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)nfsstat.c 5.9 (Berkeley) 7/1/91";
#endif /* not lint */
#include <sys/param.h>
#if BSD >= 199103
#define NEWVM
#endif
#ifndef NEWVM
#include <sys/vmmac.h>
#include <machine/pte.h>
#endif
#include <sys/mount.h>
#include <nfs/nfsv2.h>
#include <nfs/nfs.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <errno.h>
#include <nlist.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
struct nlist nl[] = {
#define N_NFSSTAT 0
{ "_nfsstats" },
#ifndef NEWVM
#define N_SYSMAP 1
{ "_Sysmap" },
#define N_SYSSIZE 2
{ "_Syssize" },
#endif
"",
};
#ifndef NEWVM
struct pte *Sysmap;
#endif
int kflag, kmem;
char *kernel = _PATH_UNIX;
char *kmemf = _PATH_KMEM;
off_t klseek();
void intpr(), printhdr(), sidewaysintpr(), usage();
main(argc, argv)
int argc;
char **argv;
{
extern int optind;
extern char *optarg;
u_int interval;
int ch;
interval = 0;
while ((ch = getopt(argc, argv, "M:N:w:")) != EOF)
switch(ch) {
case 'M':
kmemf = optarg;
kflag = 1;
break;
case 'N':
kernel = optarg;
break;
case 'w':
interval = atoi(optarg);
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
#define BACKWARD_COMPATIBILITY
#ifdef BACKWARD_COMPATIBILITY
if (*argv) {
kernel = *++argv;
if (*++argv) {
kmemf = *argv;
kflag = 1;
}
}
#endif
if (nlist(kernel, nl) < 0 || nl[0].n_type == 0) {
(void)fprintf(stderr, "nfsstate: %s: no namelist\n", kernel);
exit(1);
}
kmem = open(kmemf, O_RDONLY);
if (kmem < 0) {
(void)fprintf(stderr,
"nfsstat: %s: %s\n", kmemf, strerror(errno));
exit(1);
}
if (kflag) {
#ifdef NEWVM
(void)fprintf(stderr, "nfsstat: can't do core files yet\n");
exit(1);
#else
off_t off;
Sysmap = (struct pte *)
malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
if (!Sysmap) {
(void)fprintf(stderr, "nfsstat: %s\n", strerror(errno));
exit(1);
}
off = nl[N_SYSMAP].n_value & ~KERNBASE;
(void)lseek(kmem, off, L_SET);
(void)read(kmem, (char *)Sysmap,
(int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
#endif
}
if (!nl[N_NFSSTAT].n_value) {
(void)fprintf(stderr, "nfsstat: nfsstats symbol not defined\n");
exit(1);
}
if (interval)
sidewaysintpr(interval, nl[N_NFSSTAT].n_value);
else
intpr(nl[N_NFSSTAT].n_value);
exit(0);
}
/*
* Print a description of the network interfaces.
*/
void
intpr(nfsstataddr)
off_t nfsstataddr;
{
struct nfsstats nfsstats;
klseek(kmem, nfsstataddr, 0L);
read(kmem, (char *)&nfsstats, sizeof(struct nfsstats));
printf("Client Info:\n");
printf("Rpc Counts:\n");
printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
"Getattr", "Setattr", "Lookup", "Readlink", "Read",
"Write", "Create", "Remove");
printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
nfsstats.rpccnt[1],
nfsstats.rpccnt[2],
nfsstats.rpccnt[4],
nfsstats.rpccnt[5],
nfsstats.rpccnt[6],
nfsstats.rpccnt[8],
nfsstats.rpccnt[9],
nfsstats.rpccnt[10]);
printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
"Readdir", "Statfs");
printf("%9d %9d %9d %9d %9d %9d %9d\n",
nfsstats.rpccnt[11],
nfsstats.rpccnt[12],
nfsstats.rpccnt[13],
nfsstats.rpccnt[14],
nfsstats.rpccnt[15],
nfsstats.rpccnt[16],
nfsstats.rpccnt[17]);
printf("Rpc Info:\n");
printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
"TimedOut", "Invalid", "X Replies", "Retries", "Requests");
printf("%9d %9d %9d %9d %9d\n",
nfsstats.rpctimeouts,
nfsstats.rpcinvalid,
nfsstats.rpcunexpected,
nfsstats.rpcretries,
nfsstats.rpcrequests);
printf("Cache Info:\n");
printf("%9.9s %9.9s %9.9s %9.9s",
"Attr Hits", "Misses", "Lkup Hits", "Misses");
printf(" %9.9s %9.9s %9.9s %9.9s\n",
"BioR Hits", "Misses", "BioW Hits", "Misses");
printf("%9d %9d %9d %9d",
nfsstats.attrcache_hits, nfsstats.attrcache_misses,
nfsstats.lookupcache_hits, nfsstats.lookupcache_misses);
printf(" %9d %9d %9d %9d\n",
nfsstats.biocache_reads-nfsstats.read_bios,
nfsstats.read_bios,
nfsstats.biocache_writes-nfsstats.write_bios,
nfsstats.write_bios);
printf("%9.9s %9.9s %9.9s %9.9s",
"BioRLHits", "Misses", "BioD Hits", "Misses");
printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
printf("%9d %9d %9d %9d",
nfsstats.biocache_readlinks-nfsstats.readlink_bios,
nfsstats.readlink_bios,
nfsstats.biocache_readdirs-nfsstats.readdir_bios,
nfsstats.readdir_bios);
printf(" %9d %9d\n",
nfsstats.direofcache_hits, nfsstats.direofcache_misses);
printf("\nServer Info:\n");
printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
"Getattr", "Setattr", "Lookup", "Readlink", "Read",
"Write", "Create", "Remove");
printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
nfsstats.srvrpccnt[1],
nfsstats.srvrpccnt[2],
nfsstats.srvrpccnt[4],
nfsstats.srvrpccnt[5],
nfsstats.srvrpccnt[6],
nfsstats.srvrpccnt[8],
nfsstats.srvrpccnt[9],
nfsstats.srvrpccnt[10]);
printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
"Readdir", "Statfs");
printf("%9d %9d %9d %9d %9d %9d %9d\n",
nfsstats.srvrpccnt[11],
nfsstats.srvrpccnt[12],
nfsstats.srvrpccnt[13],
nfsstats.srvrpccnt[14],
nfsstats.srvrpccnt[15],
nfsstats.srvrpccnt[16],
nfsstats.srvrpccnt[17]);
printf("Server Ret-Failed\n");
printf("%17d\n", nfsstats.srvrpc_errs);
printf("Server Faults\n");
printf("%13d\n", nfsstats.srv_errs);
printf("Server Cache Stats:\n");
printf("%9.9s %9.9s %9.9s %9.9s\n",
"Inprog", "Idem", "Non-idem", "Misses");
printf("%9d %9d %9d %9d\n",
nfsstats.srvcache_inproghits,
nfsstats.srvcache_idemdonehits,
nfsstats.srvcache_nonidemdonehits,
nfsstats.srvcache_misses);
}
u_char signalled; /* set if alarm goes off "early" */
/*
* Print a running summary of nfs statistics.
* Repeat display every interval seconds, showing statistics
* collected over that interval. Assumes that interval is non-zero.
* First line printed at top of screen is always cumulative.
*/
void
sidewaysintpr(interval, off)
u_int interval;
off_t off;
{
struct nfsstats nfsstats, lastst;
int hdrcnt, oldmask;
void catchalarm();
klseek(kmem, off, 0L);
(void)signal(SIGALRM, catchalarm);
signalled = 0;
(void)alarm(interval);
bzero((caddr_t)&lastst, sizeof(lastst));
for (hdrcnt = 1;;) {
if (!--hdrcnt) {
printhdr();
hdrcnt = 20;
}
klseek(kmem, off, 0L);
read(kmem, (char *)&nfsstats, sizeof nfsstats);
printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n",
nfsstats.rpccnt[1]-lastst.rpccnt[1],
nfsstats.rpccnt[4]-lastst.rpccnt[4],
nfsstats.rpccnt[5]-lastst.rpccnt[5],
nfsstats.rpccnt[6]-lastst.rpccnt[6],
nfsstats.rpccnt[8]-lastst.rpccnt[8],
nfsstats.rpccnt[11]-lastst.rpccnt[11],
nfsstats.rpccnt[12]-lastst.rpccnt[12],
nfsstats.rpccnt[16]-lastst.rpccnt[16]);
printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n",
nfsstats.srvrpccnt[1]-lastst.srvrpccnt[1],
nfsstats.srvrpccnt[4]-lastst.srvrpccnt[4],
nfsstats.srvrpccnt[5]-lastst.srvrpccnt[5],
nfsstats.srvrpccnt[6]-lastst.srvrpccnt[6],
nfsstats.srvrpccnt[8]-lastst.srvrpccnt[8],
nfsstats.srvrpccnt[11]-lastst.srvrpccnt[11],
nfsstats.srvrpccnt[12]-lastst.srvrpccnt[12],
nfsstats.srvrpccnt[16]-lastst.srvrpccnt[16]);
lastst = nfsstats;
fflush(stdout);
oldmask = sigblock(sigmask(SIGALRM));
if (!signalled)
sigpause(0);
sigsetmask(oldmask);
signalled = 0;
(void)alarm(interval);
}
/*NOTREACHED*/
}
void
printhdr()
{
printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n",
"Getattr", "Lookup", "Readlink", "Read", "Write", "Rename",
"Link", "Readdir");
fflush(stdout);
}
/*
* Called if an interval expires before sidewaysintpr has completed a loop.
* Sets a flag to not wait for the alarm.
*/
void
catchalarm()
{
signalled = 1;
}
/*
* Seek into the kernel for a value.
*/
off_t
klseek(fd, base, off)
int fd, off;
off_t base;
{
#ifndef NEWVM
if (kflag) {
/* get kernel pte */
base &= ~KERNBASE;
base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
}
#endif
return (lseek(fd, base, off));
}
void
usage()
{
(void)fprintf(stderr,
"usage: nfsstat [-M core] [-N system] [-w interval]\n");
exit(1);
}