444 lines
13 KiB
C
444 lines
13 KiB
C
/* $NetBSD: nfsstat.c,v 1.16 2000/06/13 12:39:43 simonb Exp $ */
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/*
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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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) 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[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: nfsstat.c,v 1.16 2000/06/13 12:39:43 simonb Exp $");
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#endif
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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/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 <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <kvm.h>
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#include <limits.h>
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#include <nlist.h>
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#include <paths.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.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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void catchalarm __P((int));
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void getstats __P((struct nfsstats *));
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void intpr __P((void));
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int main __P((int, char **));
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void printhdr __P((void));
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void sidewaysintpr __P((u_int));
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void usage __P((void));
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kvm_t *kd;
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int printall, clientinfo, serverinfo;
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u_long nfsstataddr;
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int
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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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u_int interval;
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int ch;
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char *memf, *nlistf;
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char errbuf[_POSIX2_LINE_MAX];
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interval = 0;
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memf = nlistf = NULL;
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printall = 1;
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while ((ch = getopt(argc, argv, "M:N:w:cs")) != -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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interval = atoi(optarg);
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break;
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case 's':
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serverinfo = 1;
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printall = 0;
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break;
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case 'c':
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clientinfo = 1;
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printall = 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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if (nlistf || memf) {
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if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf))
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== 0)
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errx(1, "kvm_openfiles: %s", errbuf);
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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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nfsstataddr = nl[N_NFSSTAT].n_value;
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} else {
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kd = NULL;
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}
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if (interval)
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sidewaysintpr(interval);
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else
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intpr();
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exit(0);
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}
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void
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getstats(ns)
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struct nfsstats *ns;
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{
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size_t size;
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int mib[3];
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if (kd) {
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if (kvm_read(kd, (u_long)nfsstataddr, ns, sizeof(*ns))
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!= sizeof(*ns))
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errx(1, "kvm_read failed");
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} else {
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mib[0] = CTL_VFS;
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mib[1] = 2; /* XXX from CTL_VFS_NAMES in <sys/mount.h> */
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mib[2] = NFS_NFSSTATS;
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size = sizeof(*ns);
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if (sysctl(mib, 3, ns, &size, NULL, 0) == -1)
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err(1, "sysctl(NFS_NFSSTATS) failed");
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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()
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{
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struct nfsstats nfsstats;
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getstats(&nfsstats);
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if (printall || clientinfo) {
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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", "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 (printall || (clientinfo && serverinfo)){
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printf("\n");
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}
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if (printall || serverinfo){
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printf("Server 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] - 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(interval)
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u_int interval;
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{
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struct nfsstats nfsstats, lastst;
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int hdrcnt, oldmask;
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(void)signal(SIGALRM, catchalarm);
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signalled = 0;
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(void)alarm(interval);
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memset((caddr_t)&lastst, 0, sizeof(lastst));
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for (hdrcnt = 1;;) {
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if (!--hdrcnt) {
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printhdr();
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hdrcnt = 20;
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}
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getstats(&nfsstats);
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if (printall || clientinfo)
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printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n",
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nfsstats.rpccnt[NFSPROC_GETATTR] -
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lastst.rpccnt[NFSPROC_GETATTR],
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nfsstats.rpccnt[NFSPROC_LOOKUP] -
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lastst.rpccnt[NFSPROC_LOOKUP],
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nfsstats.rpccnt[NFSPROC_READLINK] -
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lastst.rpccnt[NFSPROC_READLINK],
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nfsstats.rpccnt[NFSPROC_READ] -
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lastst.rpccnt[NFSPROC_READ],
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nfsstats.rpccnt[NFSPROC_WRITE] -
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lastst.rpccnt[NFSPROC_WRITE],
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nfsstats.rpccnt[NFSPROC_RENAME] -
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lastst.rpccnt[NFSPROC_RENAME],
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nfsstats.rpccnt[NFSPROC_ACCESS] -
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lastst.rpccnt[NFSPROC_ACCESS],
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(nfsstats.rpccnt[NFSPROC_READDIR] -
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lastst.rpccnt[NFSPROC_READDIR]) +
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(nfsstats.rpccnt[NFSPROC_READDIRPLUS] -
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lastst.rpccnt[NFSPROC_READDIRPLUS]));
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if (printall || serverinfo)
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printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n",
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nfsstats.srvrpccnt[NFSPROC_GETATTR] -
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lastst.srvrpccnt[NFSPROC_GETATTR],
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nfsstats.srvrpccnt[NFSPROC_LOOKUP] -
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lastst.srvrpccnt[NFSPROC_LOOKUP],
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nfsstats.srvrpccnt[NFSPROC_READLINK] -
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lastst.srvrpccnt[NFSPROC_READLINK],
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nfsstats.srvrpccnt[NFSPROC_READ] -
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lastst.srvrpccnt[NFSPROC_READ],
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nfsstats.srvrpccnt[NFSPROC_WRITE] -
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lastst.srvrpccnt[NFSPROC_WRITE],
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nfsstats.srvrpccnt[NFSPROC_RENAME] -
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lastst.srvrpccnt[NFSPROC_RENAME],
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nfsstats.srvrpccnt[NFSPROC_ACCESS] -
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lastst.srvrpccnt[NFSPROC_ACCESS],
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(nfsstats.srvrpccnt[NFSPROC_READDIR] -
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lastst.srvrpccnt[NFSPROC_READDIR]) +
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(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS] -
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lastst.srvrpccnt[NFSPROC_READDIRPLUS]));
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lastst = nfsstats;
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fflush(stdout);
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oldmask = sigblock(sigmask(SIGALRM));
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if (!signalled)
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sigpause(0);
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sigsetmask(oldmask);
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signalled = 0;
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(void)alarm(interval);
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}
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/*NOTREACHED*/
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}
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void
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printhdr()
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{
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printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n",
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"Getattr", "Lookup", "Readlink", "Read", "Write", "Rename",
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"Access", "Readdir");
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fflush(stdout);
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}
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/*
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* Called if an interval expires before sidewaysintpr has completed a loop.
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* Sets a flag to not wait for the alarm.
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*/
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void
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catchalarm(dummy)
|
|
int dummy;
|
|
{
|
|
|
|
signalled = 1;
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
|
|
(void)fprintf(stderr,
|
|
"usage: nfsstat [-cs] [-M core] [-N system] [-w interval]\n");
|
|
exit(1);
|
|
}
|