4.3BSD-Reno/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 are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#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 5.5 (Berkeley) 6/1/90";
#endif /* not lint */
#include <sys/param.h>
#include <sys/vmmac.h>
#include <sys/file.h>
#include <machine/pte.h>
#include <sys/namei.h>
#include <sys/mount.h>
#include <nfs/nfsv2.h>
#include <nfs/nfs.h>
#include <ctype.h>
#include <errno.h>
#include <nlist.h>
#include <stdio.h>
#include <paths.h>
#define YES 1
#define NO 0
struct nlist nl[] = {
#define N_NFSSTAT 0
{ "_nfsstats" },
#define N_SYSMAP 1
{ "_Sysmap" },
#define N_SYSSIZE 2
{ "_Syssize" },
"",
};
struct pte *Sysmap;
char *system = _PATH_UNIX;
char *kmemf = _PATH_KMEM;
int kmem;
int kflag;
int interval;
extern char *malloc();
extern off_t lseek();
main(argc, argv)
int argc;
char *argv[];
{
int ch;
interval = 0;
argc--;
argv++;
if (argc > 0) {
interval = atoi(argv[0]);
if (interval <= 0)
usage();
argv++, argc--;
if (argc > 0) {
system = *argv;
argv++, argc--;
if (argc > 0) {
kmemf = *argv;
kflag++;
}
}
}
if (nlist(system, nl) < 0 || nl[0].n_type == 0) {
fprintf(stderr, "%s: no namelist\n", system);
exit(1);
}
kmem = open(kmemf, O_RDONLY);
if (kmem < 0) {
perror(kmemf);
exit(1);
}
if (kflag) {
off_t off;
Sysmap = (struct pte *)
malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
if (!Sysmap) {
fputs("nfsstat: can't get memory for Sysmap.\n", stderr);
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)));
}
intpr(interval, nl[N_NFSSTAT].n_value);
exit(0);
}
/*
* Seek into the kernel for a value.
*/
off_t
klseek(fd, base, off)
int fd, off;
off_t base;
{
if (kflag) {
/* get kernel pte */
base &= ~KERNBASE;
base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
}
return (lseek(fd, base, off));
}
usage()
{
fputs("Usage: nfsstat [interval [ system [ corefile ] ] ]\n", stderr);
exit(1);
}
/*
* Print a description of the network interfaces.
*/
intpr(interval, nfsstataddr)
int interval;
off_t nfsstataddr;
{
struct nfsstats nfsstats;
if (nfsstataddr == 0) {
printf("nfsstat: symbol not defined\n");
return;
}
if (interval) {
sidewaysintpr((unsigned)interval, nfsstataddr);
return;
}
klseek(kmem, nfsstataddr, 0);
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.
*/
sidewaysintpr(interval, off)
unsigned interval;
off_t off;
{
struct nfsstats nfsstats, lastst;
register int line;
int oldmask;
int catchalarm();
klseek(kmem, off, 0);
(void)signal(SIGALRM, catchalarm);
signalled = NO;
(void)alarm(interval);
bzero((caddr_t)&lastst, sizeof(lastst));
banner:
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);
line = 0;
loop:
klseek(kmem, off, 0);
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);
line++;
oldmask = sigblock(sigmask(SIGALRM));
if (! signalled) {
sigpause(0);
}
sigsetmask(oldmask);
signalled = NO;
(void)alarm(interval);
if (line == 21)
goto banner;
goto loop;
/*NOTREACHED*/
}
/*
* Called if an interval expires before sidewaysintpr has completed a loop.
* Sets a flag to not wait for the alarm.
*/
catchalarm()
{
signalled = YES;
}