mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
07e532e7d6
unless the user specifies a dead kernel to operate on.
379 lines
11 KiB
C
379 lines
11 KiB
C
/*
|
|
* Copyright (c) 1983, 1989, 1993
|
|
* The 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
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1983, 1989, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
/*static char sccsid[] = "From: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93";*/
|
|
static const char rcsid[] =
|
|
"$Id$";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/sysctl.h>
|
|
#include <nfs/nfsv2.h>
|
|
#include <nfs/nfs.h>
|
|
#include <signal.h>
|
|
#include <fcntl.h>
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <kvm.h>
|
|
#include <nlist.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <paths.h>
|
|
#include <err.h>
|
|
|
|
struct nlist nl[] = {
|
|
#define N_NFSSTAT 0
|
|
{ "_nfsstats" },
|
|
"",
|
|
};
|
|
kvm_t *kd;
|
|
|
|
static int deadkernel = 0;
|
|
|
|
void intpr(void), printhdr(void), sidewaysintpr(u_int), usage(void);
|
|
|
|
main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
extern int optind;
|
|
extern char *optarg;
|
|
u_int interval;
|
|
int ch;
|
|
char *memf, *nlistf;
|
|
char errbuf[80];
|
|
|
|
interval = 0;
|
|
memf = nlistf = NULL;
|
|
while ((ch = getopt(argc, argv, "M:N:w:")) != EOF)
|
|
switch(ch) {
|
|
case 'M':
|
|
memf = optarg;
|
|
break;
|
|
case 'N':
|
|
nlistf = optarg;
|
|
break;
|
|
case 'w':
|
|
interval = atoi(optarg);
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
#define BACKWARD_COMPATIBILITY
|
|
#ifdef BACKWARD_COMPATIBILITY
|
|
if (*argv) {
|
|
interval = atoi(*argv);
|
|
if (*++argv) {
|
|
nlistf = *argv;
|
|
if (*++argv)
|
|
memf = *argv;
|
|
}
|
|
}
|
|
#endif
|
|
/*
|
|
* Discard setgid privileges if not the running kernel so that bad
|
|
* guys can't print interesting stuff from kernel memory.
|
|
*/
|
|
if (nlistf != NULL || memf != NULL) {
|
|
setgid(getgid());
|
|
deadkernel = 1;
|
|
|
|
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY,
|
|
errbuf)) == 0) {
|
|
errx(1, "kvm_openfiles: %s", errbuf);
|
|
}
|
|
if (kvm_nlist(kd, nl) != 0) {
|
|
errx(1, "kvm_nlist: can't get names");
|
|
}
|
|
}
|
|
|
|
if (interval)
|
|
sidewaysintpr(interval);
|
|
else
|
|
intpr();
|
|
exit(0);
|
|
}
|
|
|
|
/*
|
|
* Read the nfs stats using sysctl(3) for live kernels, or kvm_read
|
|
* for dead ones.
|
|
*/
|
|
void
|
|
readstats(struct nfsstats *stp)
|
|
{
|
|
if(deadkernel) {
|
|
if(kvm_read(kd, (u_long)nl[N_NFSSTAT].n_value, stp,
|
|
sizeof *stp) < 0) {
|
|
err(1, "kvm_read");
|
|
}
|
|
} else {
|
|
int name[3];
|
|
size_t buflen = sizeof *stp;
|
|
|
|
name[0] = CTL_FS;
|
|
name[1] = MOUNT_NFS;
|
|
name[2] = NFS_NFSSTATS;
|
|
|
|
if(sysctl(name, 3, stp, &buflen, (void *)0, (size_t)0) < 0) {
|
|
err(1, "sysctl");
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Print a description of the nfs stats.
|
|
*/
|
|
void
|
|
intpr(void)
|
|
{
|
|
struct nfsstats nfsstats;
|
|
|
|
readstats(&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[NFSPROC_GETATTR],
|
|
nfsstats.rpccnt[NFSPROC_SETATTR],
|
|
nfsstats.rpccnt[NFSPROC_LOOKUP],
|
|
nfsstats.rpccnt[NFSPROC_READLINK],
|
|
nfsstats.rpccnt[NFSPROC_READ],
|
|
nfsstats.rpccnt[NFSPROC_WRITE],
|
|
nfsstats.rpccnt[NFSPROC_CREATE],
|
|
nfsstats.rpccnt[NFSPROC_REMOVE]);
|
|
printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
|
|
"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
|
|
"Readdir", "Statfs", "RdirLook");
|
|
printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
|
|
nfsstats.rpccnt[NFSPROC_RENAME],
|
|
nfsstats.rpccnt[NFSPROC_LINK],
|
|
nfsstats.rpccnt[NFSPROC_SYMLINK],
|
|
nfsstats.rpccnt[NFSPROC_MKDIR],
|
|
nfsstats.rpccnt[NFSPROC_RMDIR],
|
|
nfsstats.rpccnt[NFSPROC_READDIR],
|
|
nfsstats.rpccnt[NFSPROC_STATFS],
|
|
nfsstats.rpccnt[NQNFSPROC_READDIRLOOK]);
|
|
printf("%9.9s %9.9s %9.9s\n",
|
|
"GLease", "Vacate", "Evict");
|
|
printf("%9d %9d %9d\n",
|
|
nfsstats.rpccnt[NQNFSPROC_GETLEASE],
|
|
nfsstats.rpccnt[NQNFSPROC_VACATED],
|
|
nfsstats.rpccnt[NQNFSPROC_EVICTED]);
|
|
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[NFSPROC_GETATTR],
|
|
nfsstats.srvrpccnt[NFSPROC_SETATTR],
|
|
nfsstats.srvrpccnt[NFSPROC_LOOKUP],
|
|
nfsstats.srvrpccnt[NFSPROC_READLINK],
|
|
nfsstats.srvrpccnt[NFSPROC_READ],
|
|
nfsstats.srvrpccnt[NFSPROC_WRITE],
|
|
nfsstats.srvrpccnt[NFSPROC_CREATE],
|
|
nfsstats.srvrpccnt[NFSPROC_REMOVE]);
|
|
printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
|
|
"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
|
|
"Readdir", "Statfs", "RdirLook");
|
|
printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
|
|
nfsstats.srvrpccnt[NFSPROC_RENAME],
|
|
nfsstats.srvrpccnt[NFSPROC_LINK],
|
|
nfsstats.srvrpccnt[NFSPROC_SYMLINK],
|
|
nfsstats.srvrpccnt[NFSPROC_MKDIR],
|
|
nfsstats.srvrpccnt[NFSPROC_RMDIR],
|
|
nfsstats.srvrpccnt[NFSPROC_READDIR],
|
|
nfsstats.srvrpccnt[NFSPROC_STATFS],
|
|
nfsstats.srvrpccnt[NQNFSPROC_READDIRLOOK]);
|
|
printf("%9.9s %9.9s %9.9s\n",
|
|
"GLease", "Vacate", "Evict");
|
|
printf("%9d %9d %9d\n",
|
|
nfsstats.srvrpccnt[NQNFSPROC_GETLEASE],
|
|
nfsstats.srvrpccnt[NQNFSPROC_VACATED],
|
|
nfsstats.srvrpccnt[NQNFSPROC_EVICTED]);
|
|
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);
|
|
printf("Server Lease Stats:\n");
|
|
printf("%9.9s %9.9s %9.9s\n",
|
|
"Leases", "PeakL", "GLeases");
|
|
printf("%9d %9d %9d\n",
|
|
nfsstats.srvnqnfs_leases,
|
|
nfsstats.srvnqnfs_maxleases,
|
|
nfsstats.srvnqnfs_getleases);
|
|
}
|
|
|
|
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)
|
|
u_int interval;
|
|
{
|
|
struct nfsstats nfsstats, lastst;
|
|
int hdrcnt, oldmask;
|
|
void catchalarm();
|
|
|
|
(void)signal(SIGALRM, catchalarm);
|
|
signalled = 0;
|
|
(void)alarm(interval);
|
|
bzero((caddr_t)&lastst, sizeof(lastst));
|
|
|
|
for (hdrcnt = 1;;) {
|
|
if (!--hdrcnt) {
|
|
printhdr();
|
|
hdrcnt = 20;
|
|
}
|
|
readstats(&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;
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: nfsstat [-M core] [-N system] [-w interval]\n");
|
|
exit(1);
|
|
}
|