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- /*
- * 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);
- }
-