4893ef0bc8
wide-format option to get client-side ops and cache statistics on a single
line.
Change client side ops to the number of attempted ops, whether cached or
not, rather then just the number of rpc's that went through to the server.
This brings nfsstat inline with systat -vm and vmstat and reduces
confusion. The combined cache percentage stats now available via
'nfsstat -cW 1' becomes very useful.
484 lines
14 KiB
C
484 lines
14 KiB
C
/*
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* Copyright (c) 1983, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1983, 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)nfsstat.c 8.2 (Berkeley) 3/31/95";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/time.h>
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#include <sys/sysctl.h>
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#include <nfs/rpcv2.h>
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#include <nfs/nfsproto.h>
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#include <nfs/nfs.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <errno.h>
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#include <kvm.h>
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#include <nlist.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <paths.h>
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#include <err.h>
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struct nlist nl[] = {
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#define N_NFSSTAT 0
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{ "_nfsstats" },
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"",
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};
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kvm_t *kd;
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static int deadkernel = 0;
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static int widemode = 0;
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void intpr __P((int, int));
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void printhdr __P((int, int));
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void sidewaysintpr __P((u_int, int, int));
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void usage __P((void));
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char *sperc1 __P((int, int));
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char *sperc2 __P((int, int));
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#define DELTA(field) (nfsstats.field - lastst.field)
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main(argc, argv)
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int argc;
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char **argv;
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{
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extern int optind;
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extern char *optarg;
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u_int interval;
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int clientOnly = -1;
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int serverOnly = -1;
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int ch;
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char *memf, *nlistf;
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char errbuf[80];
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interval = 0;
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memf = nlistf = NULL;
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while ((ch = getopt(argc, argv, "csWM:N:w:")) != -1)
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switch(ch) {
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case 'M':
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memf = optarg;
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break;
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case 'N':
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nlistf = optarg;
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break;
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case 'W':
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widemode = 1;
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break;
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case 'w':
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interval = atoi(optarg);
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break;
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case 'c':
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clientOnly = 1;
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if (serverOnly < 0)
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serverOnly = 0;
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break;
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case 's':
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serverOnly = 1;
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if (clientOnly < 0)
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clientOnly = 0;
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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#define BACKWARD_COMPATIBILITY
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#ifdef BACKWARD_COMPATIBILITY
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if (*argv) {
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interval = atoi(*argv);
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if (*++argv) {
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nlistf = *argv;
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if (*++argv)
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memf = *argv;
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}
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}
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#endif
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/*
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* Discard setgid privileges if not the running kernel so that bad
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* guys can't print interesting stuff from kernel memory.
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*/
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if (nlistf != NULL || memf != NULL) {
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setgid(getgid());
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deadkernel = 1;
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if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY,
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errbuf)) == 0) {
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errx(1, "kvm_openfiles: %s", errbuf);
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}
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if (kvm_nlist(kd, nl) != 0) {
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errx(1, "kvm_nlist: can't get names");
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}
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}
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if (interval)
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sidewaysintpr(interval, clientOnly, serverOnly);
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else
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intpr(clientOnly, serverOnly);
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exit(0);
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}
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/*
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* Read the nfs stats using sysctl(3) for live kernels, or kvm_read
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* for dead ones.
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*/
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void
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readstats(stp)
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struct nfsstats *stp;
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{
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if(deadkernel) {
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if(kvm_read(kd, (u_long)nl[N_NFSSTAT].n_value, stp,
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sizeof *stp) < 0) {
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err(1, "kvm_read");
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}
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} else {
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int name[3];
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size_t buflen = sizeof *stp;
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struct vfsconf vfc;
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if (getvfsbyname("nfs", &vfc) < 0)
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err(1, "getvfsbyname: NFS not compiled into kernel");
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name[0] = CTL_VFS;
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name[1] = vfc.vfc_typenum;
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name[2] = NFS_NFSSTATS;
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if (sysctl(name, 3, stp, &buflen, (void *)0, (size_t)0) < 0) {
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err(1, "sysctl");
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}
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}
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}
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/*
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* Print a description of the nfs stats.
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*/
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void
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intpr(int clientOnly, int serverOnly)
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{
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struct nfsstats nfsstats;
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readstats(&nfsstats);
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if (clientOnly) {
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printf("Client Info:\n");
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printf("Rpc Counts:\n");
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"Getattr", "Setattr", "Lookup", "Readlink", "Read",
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"Write", "Create", "Remove");
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printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
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nfsstats.rpccnt[NFSPROC_GETATTR],
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nfsstats.rpccnt[NFSPROC_SETATTR],
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nfsstats.rpccnt[NFSPROC_LOOKUP],
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nfsstats.rpccnt[NFSPROC_READLINK],
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nfsstats.rpccnt[NFSPROC_READ],
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nfsstats.rpccnt[NFSPROC_WRITE],
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nfsstats.rpccnt[NFSPROC_CREATE],
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nfsstats.rpccnt[NFSPROC_REMOVE]);
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
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"Readdir", "RdirPlus", "Access");
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printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
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nfsstats.rpccnt[NFSPROC_RENAME],
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nfsstats.rpccnt[NFSPROC_LINK],
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nfsstats.rpccnt[NFSPROC_SYMLINK],
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nfsstats.rpccnt[NFSPROC_MKDIR],
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nfsstats.rpccnt[NFSPROC_RMDIR],
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nfsstats.rpccnt[NFSPROC_READDIR],
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nfsstats.rpccnt[NFSPROC_READDIRPLUS],
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nfsstats.rpccnt[NFSPROC_ACCESS]);
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit",
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"GLease", "Vacate", "Evict");
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printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
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nfsstats.rpccnt[NFSPROC_MKNOD],
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nfsstats.rpccnt[NFSPROC_FSSTAT],
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nfsstats.rpccnt[NFSPROC_FSINFO],
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nfsstats.rpccnt[NFSPROC_PATHCONF],
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nfsstats.rpccnt[NFSPROC_COMMIT],
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nfsstats.rpccnt[NQNFSPROC_GETLEASE],
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nfsstats.rpccnt[NQNFSPROC_VACATED],
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nfsstats.rpccnt[NQNFSPROC_EVICTED]);
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printf("Rpc Info:\n");
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"TimedOut", "Invalid", "X Replies", "Retries",
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"Requests");
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printf("%9d %9d %9d %9d %9d\n",
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nfsstats.rpctimeouts,
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nfsstats.rpcinvalid,
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nfsstats.rpcunexpected,
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nfsstats.rpcretries,
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nfsstats.rpcrequests);
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printf("Cache Info:\n");
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printf("%9.9s %9.9s %9.9s %9.9s",
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"Attr Hits", "Misses", "Lkup Hits", "Misses");
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printf(" %9.9s %9.9s %9.9s %9.9s\n",
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"BioR Hits", "Misses", "BioW Hits", "Misses");
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printf("%9d %9d %9d %9d",
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nfsstats.attrcache_hits, nfsstats.attrcache_misses,
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nfsstats.lookupcache_hits, nfsstats.lookupcache_misses);
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printf(" %9d %9d %9d %9d\n",
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nfsstats.biocache_reads-nfsstats.read_bios,
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nfsstats.read_bios,
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nfsstats.biocache_writes-nfsstats.write_bios,
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nfsstats.write_bios);
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printf("%9.9s %9.9s %9.9s %9.9s",
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"BioRLHits", "Misses", "BioD Hits", "Misses");
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printf(" %9.9s %9.9s\n", "DirE Hits", "Misses");
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printf("%9d %9d %9d %9d",
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nfsstats.biocache_readlinks-nfsstats.readlink_bios,
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nfsstats.readlink_bios,
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nfsstats.biocache_readdirs-nfsstats.readdir_bios,
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nfsstats.readdir_bios);
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printf(" %9d %9d\n",
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nfsstats.direofcache_hits, nfsstats.direofcache_misses);
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}
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if (serverOnly) {
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printf("\nServer Info:\n");
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"Getattr", "Setattr", "Lookup", "Readlink", "Read",
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"Write", "Create", "Remove");
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printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
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nfsstats.srvrpccnt[NFSPROC_GETATTR],
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nfsstats.srvrpccnt[NFSPROC_SETATTR],
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nfsstats.srvrpccnt[NFSPROC_LOOKUP],
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nfsstats.srvrpccnt[NFSPROC_READLINK],
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nfsstats.srvrpccnt[NFSPROC_READ],
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nfsstats.srvrpccnt[NFSPROC_WRITE],
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nfsstats.srvrpccnt[NFSPROC_CREATE],
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nfsstats.srvrpccnt[NFSPROC_REMOVE]);
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"Rename", "Link", "Symlink", "Mkdir", "Rmdir",
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"Readdir", "RdirPlus", "Access");
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printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
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nfsstats.srvrpccnt[NFSPROC_RENAME],
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nfsstats.srvrpccnt[NFSPROC_LINK],
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nfsstats.srvrpccnt[NFSPROC_SYMLINK],
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nfsstats.srvrpccnt[NFSPROC_MKDIR],
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nfsstats.srvrpccnt[NFSPROC_RMDIR],
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nfsstats.srvrpccnt[NFSPROC_READDIR],
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nfsstats.srvrpccnt[NFSPROC_READDIRPLUS],
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nfsstats.srvrpccnt[NFSPROC_ACCESS]);
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n",
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"Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit",
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"GLease", "Vacate", "Evict");
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printf("%9d %9d %9d %9d %9d %9d %9d %9d\n",
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nfsstats.srvrpccnt[NFSPROC_MKNOD],
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nfsstats.srvrpccnt[NFSPROC_FSSTAT],
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nfsstats.srvrpccnt[NFSPROC_FSINFO],
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nfsstats.srvrpccnt[NFSPROC_PATHCONF],
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nfsstats.srvrpccnt[NFSPROC_COMMIT],
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nfsstats.srvrpccnt[NQNFSPROC_GETLEASE],
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nfsstats.srvrpccnt[NQNFSPROC_VACATED],
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nfsstats.srvrpccnt[NQNFSPROC_EVICTED]);
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printf("Server Ret-Failed\n");
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printf("%17d\n", nfsstats.srvrpc_errs);
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printf("Server Faults\n");
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printf("%13d\n", nfsstats.srv_errs);
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printf("Server Cache Stats:\n");
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printf("%9.9s %9.9s %9.9s %9.9s\n",
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"Inprog", "Idem", "Non-idem", "Misses");
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printf("%9d %9d %9d %9d\n",
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nfsstats.srvcache_inproghits,
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nfsstats.srvcache_idemdonehits,
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nfsstats.srvcache_nonidemdonehits,
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nfsstats.srvcache_misses);
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printf("Server Lease Stats:\n");
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printf("%9.9s %9.9s %9.9s\n",
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"Leases", "PeakL", "GLeases");
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printf("%9d %9d %9d\n",
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nfsstats.srvnqnfs_leases,
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nfsstats.srvnqnfs_maxleases,
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nfsstats.srvnqnfs_getleases);
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printf("Server Write Gathering:\n");
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printf("%9.9s %9.9s %9.9s\n",
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"WriteOps", "WriteRPC", "Opsaved");
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printf("%9d %9d %9d\n",
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nfsstats.srvvop_writes,
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nfsstats.srvrpccnt[NFSPROC_WRITE],
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nfsstats.srvrpccnt[NFSPROC_WRITE] -
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nfsstats.srvvop_writes);
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}
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}
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u_char signalled; /* set if alarm goes off "early" */
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/*
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* Print a running summary of nfs statistics.
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* Repeat display every interval seconds, showing statistics
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* collected over that interval. Assumes that interval is non-zero.
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* First line printed at top of screen is always cumulative.
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*/
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void
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sidewaysintpr(u_int interval, int clientOnly, int serverOnly)
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{
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struct nfsstats nfsstats, lastst;
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int hdrcnt = 1;
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readstats(&lastst);
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sleep(interval);
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for (;;) {
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readstats(&nfsstats);
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if (--hdrcnt == 0) {
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printhdr(clientOnly, serverOnly);
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if (clientOnly && serverOnly)
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hdrcnt = 10;
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else
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hdrcnt = 20;
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}
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if (clientOnly) {
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printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
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((clientOnly && serverOnly) ? "Client:" : ""),
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DELTA(attrcache_hits) + DELTA(attrcache_misses),
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DELTA(lookupcache_hits) + DELTA(lookupcache_misses),
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DELTA(biocache_readlinks),
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DELTA(biocache_reads),
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DELTA(biocache_writes),
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nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME],
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DELTA(accesscache_hits) + DELTA(accesscache_misses),
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DELTA(biocache_readdirs)
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);
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if (widemode) {
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printf(" %s %s %s %s %s %s",
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sperc1(DELTA(attrcache_hits),
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DELTA(attrcache_misses)),
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sperc1(DELTA(lookupcache_hits),
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DELTA(lookupcache_misses)),
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sperc2(DELTA(biocache_reads),
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DELTA(read_bios)),
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sperc2(DELTA(biocache_writes),
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DELTA(write_bios)),
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sperc1(DELTA(accesscache_hits),
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DELTA(accesscache_misses)),
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sperc2(DELTA(biocache_readdirs),
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DELTA(readdir_bios))
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);
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}
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printf("\n");
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}
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if (serverOnly) {
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printf("%s %6d %6d %6d %6d %6d %6d %6d %6d",
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((clientOnly && serverOnly) ? "Server:" : ""),
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nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR],
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nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP],
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nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK],
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nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ],
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nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE],
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nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME],
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nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS],
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(nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR])
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+(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS]));
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printf("\n");
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}
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lastst = nfsstats;
|
|
fflush(stdout);
|
|
sleep(interval);
|
|
}
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
void
|
|
printhdr(int clientOnly, int serverOnly)
|
|
{
|
|
printf("%s%6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s %6.6s",
|
|
((serverOnly && clientOnly) ? " " : " "),
|
|
"GtAttr", "Lookup", "Rdlink", "Read", "Write", "Rename",
|
|
"Access", "Rddir");
|
|
if (widemode && clientOnly) {
|
|
printf(" Attr Lkup BioR BioW Accs BioD");
|
|
}
|
|
printf("\n");
|
|
fflush(stdout);
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: nfsstat [-M core] [-N system] [-w interval]\n");
|
|
exit(1);
|
|
}
|
|
|
|
static char SPBuf[64][8];
|
|
static int SPIndex;
|
|
|
|
char *
|
|
sperc1(int hits, int misses)
|
|
{
|
|
char *p = SPBuf[SPIndex];
|
|
|
|
if (hits + misses) {
|
|
sprintf(p, "%3d%%",
|
|
(int)(char)((quad_t)hits * 100 / (hits + misses)));
|
|
} else {
|
|
sprintf(p, " -");
|
|
}
|
|
SPIndex = (SPIndex + 1) & 63;
|
|
return(p);
|
|
}
|
|
|
|
char *
|
|
sperc2(int ttl, int misses)
|
|
{
|
|
char *p = SPBuf[SPIndex];
|
|
|
|
if (ttl) {
|
|
sprintf(p, "%3d%%",
|
|
(int)(char)((quad_t)(ttl - misses) * 100 / ttl));
|
|
} else {
|
|
sprintf(p, " -");
|
|
}
|
|
SPIndex = (SPIndex + 1) & 63;
|
|
return(p);
|
|
}
|
|
|