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/* $OpenBSD: nfsstat.c,v 1.35 2015/10/23 08:18:30 tedu Exp $ */ |
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/* $NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej 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. 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/types.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 <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 <limits.h> |
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#include <paths.h> |
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#include <err.h> |
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#define SHOW_SERVER 0x01 |
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#define SHOW_CLIENT 0x02 |
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#define SHOW_ALL (SHOW_SERVER | SHOW_CLIENT) |
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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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volatile sig_atomic_t signalled; /* set if alarm goes off "early" */ |
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int nfs_id; |
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void getnfsstats(struct nfsstats *); |
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void printhdr(void); |
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void intpr(u_int); |
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void sidewaysintpr(u_int, u_int); |
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void usage(void); |
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void catchalarm(int); |
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int |
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main(int argc, char *argv[]) |
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{ |
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u_int interval, display = SHOW_ALL; |
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extern int optind; |
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extern char *optarg; |
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char *memf, *nlistf; |
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const char *errstr; |
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int ch; |
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interval = 0; |
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memf = nlistf = NULL; |
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while ((ch = getopt(argc, argv, "cM:N:sw:")) != -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 = (u_int)strtonum(optarg, 0, 1000, &errstr); |
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if (errstr) |
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errx(1, "invalid interval %s: %s", |
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optarg, errstr); |
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break; |
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case 's': |
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display = SHOW_SERVER; |
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break; |
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case 'c': |
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display = SHOW_CLIENT; |
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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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if (argc) { |
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interval = (u_int)strtonum(*argv, 0, 1000, &errstr); |
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if (errstr) |
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errx(1, "invalid interval %s: %s", *argv, errstr); |
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++argv; |
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--argc; |
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} |
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if (nlistf || memf) { |
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char errbuf[_POSIX2_LINE_MAX]; |
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if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) |
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errx(1, "nfsstat: %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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} else { |
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int mib[4]; |
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size_t len; |
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mib[0] = CTL_VFS; |
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mib[1] = VFS_GENERIC; |
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mib[2] = VFS_MAXTYPENUM; |
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len = sizeof(nfs_id); |
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if (sysctl(mib, 3, &nfs_id, &len, NULL, 0)) |
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err(1, "sysctl: VFS_MAXTYPENUM"); |
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for (; nfs_id; nfs_id--) { |
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struct vfsconf vfsc; |
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mib[0] = CTL_VFS; |
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mib[1] = VFS_GENERIC; |
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mib[2] = VFS_CONF; |
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mib[3] = nfs_id; |
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len = sizeof(vfsc); |
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if (sysctl(mib, 4, &vfsc, &len, NULL, 0)) |
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continue; |
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if (!strcmp(vfsc.vfc_name, MOUNT_NFS)) |
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break; |
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} |
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if (nfs_id == 0) |
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errx(1, "cannot find nfs filesystem id"); |
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} |
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if (interval) |
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sidewaysintpr(interval, display); |
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else |
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intpr(display); |
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return 0; |
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} |
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void |
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getnfsstats(struct nfsstats *p) |
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{ |
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if (kd) { |
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if (kvm_read(kd, nl[N_NFSSTAT].n_value, p, sizeof(*p)) != sizeof(*p)) |
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errx(1, "kvm_read failed"); |
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} else { |
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int mib[3]; |
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size_t len = sizeof(*p); |
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mib[0] = CTL_VFS; |
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mib[1] = nfs_id; /* 2 */ |
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mib[2] = NFS_NFSSTATS; |
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if (sysctl(mib, 3, p, &len, NULL, 0)) |
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err(1, "sysctl"); |
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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(u_int display) |
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{ |
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struct nfsstats nfsstats; |
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getnfsstats(&nfsstats); |
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if (display & SHOW_CLIENT) { |
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printf("Client 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("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\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("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\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\n", |
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"Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); |
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printf("%9llu %9llu %9llu %9llu %9llu\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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printf("Rpc Info:\n"); |
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printf("%9.9s %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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"FrcSync"); |
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printf("%9llu %9llu %9llu %9llu %9llu %9llu\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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nfsstats.forcedsync); |
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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("%9llu %9llu %9llu %9llu", |
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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(" %9llu %9llu %9llu %9llu\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("%9llu %9llu %9llu %9llu", |
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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(" %9llu %9llu\n", |
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nfsstats.direofcache_hits, nfsstats.direofcache_misses); |
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} |
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if (display == SHOW_ALL) |
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printf("\n"); |
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if (display & SHOW_SERVER) { |
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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("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\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("%9llu %9llu %9llu %9llu %9llu %9llu %9llu %9llu\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], |
291 |
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nfsstats.srvrpccnt[NFSPROC_RMDIR], |
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nfsstats.srvrpccnt[NFSPROC_READDIR], |
293 |
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nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], |
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nfsstats.srvrpccnt[NFSPROC_ACCESS]); |
295 |
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printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", |
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"Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); |
297 |
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printf("%9llu %9llu %9llu %9llu %9llu\n", |
298 |
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nfsstats.srvrpccnt[NFSPROC_MKNOD], |
299 |
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nfsstats.srvrpccnt[NFSPROC_FSSTAT], |
300 |
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nfsstats.srvrpccnt[NFSPROC_FSINFO], |
301 |
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nfsstats.srvrpccnt[NFSPROC_PATHCONF], |
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nfsstats.srvrpccnt[NFSPROC_COMMIT]); |
303 |
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printf("Server Ret-Failed\n"); |
304 |
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printf("%17llu\n", nfsstats.srvrpc_errs); |
305 |
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printf("Server Faults\n"); |
306 |
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printf("%13llu\n", nfsstats.srv_errs); |
307 |
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printf("Server Cache Stats:\n"); |
308 |
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printf("%9.9s %9.9s %9.9s %9.9s\n", |
309 |
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"Inprog", "Idem", "Non-idem", "Misses"); |
310 |
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printf("%9llu %9llu %9llu %9llu\n", |
311 |
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nfsstats.srvcache_inproghits, |
312 |
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nfsstats.srvcache_idemdonehits, |
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nfsstats.srvcache_nonidemdonehits, |
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nfsstats.srvcache_misses); |
315 |
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printf("Server Write Gathering:\n"); |
316 |
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printf("%9.9s %9.9s %9.9s\n", |
317 |
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"WriteOps", "WriteRPC", "Opsaved"); |
318 |
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printf("%9llu %9llu %9llu\n", |
319 |
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nfsstats.srvvop_writes, |
320 |
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nfsstats.srvrpccnt[NFSPROC_WRITE], |
321 |
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nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); |
322 |
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} |
323 |
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} |
324 |
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|
325 |
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/* |
326 |
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* Print a running summary of nfs statistics. |
327 |
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* Repeat display every interval seconds, showing statistics |
328 |
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* collected over that interval. Assumes that interval is non-zero. |
329 |
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* First line printed at top of screen is always cumulative. |
330 |
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*/ |
331 |
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void |
332 |
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sidewaysintpr(u_int interval, u_int display) |
333 |
|
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{ |
334 |
|
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struct nfsstats nfsstats, lastst; |
335 |
|
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int hdrcnt; |
336 |
|
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sigset_t emptyset; |
337 |
|
|
|
338 |
|
|
(void)signal(SIGALRM, catchalarm); |
339 |
|
|
signalled = 0; |
340 |
|
|
(void)alarm(interval); |
341 |
|
|
bzero(&lastst, sizeof(lastst)); |
342 |
|
|
|
343 |
|
|
for (hdrcnt = 1;;) { |
344 |
|
|
if (!--hdrcnt) { |
345 |
|
|
printhdr(); |
346 |
|
|
hdrcnt = 20; |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
getnfsstats(&nfsstats); |
350 |
|
|
|
351 |
|
|
if (display & SHOW_CLIENT) |
352 |
|
|
printf("Client: " |
353 |
|
|
"%8llu %8llu %8llu %8llu %8llu %8llu %8llu %8llu\n", |
354 |
|
|
nfsstats.rpccnt[NFSPROC_GETATTR] - |
355 |
|
|
lastst.rpccnt[NFSPROC_GETATTR], |
356 |
|
|
nfsstats.rpccnt[NFSPROC_LOOKUP] - |
357 |
|
|
lastst.rpccnt[NFSPROC_LOOKUP], |
358 |
|
|
nfsstats.rpccnt[NFSPROC_READLINK] - |
359 |
|
|
lastst.rpccnt[NFSPROC_READLINK], |
360 |
|
|
nfsstats.rpccnt[NFSPROC_READ] - |
361 |
|
|
lastst.rpccnt[NFSPROC_READ], |
362 |
|
|
nfsstats.rpccnt[NFSPROC_WRITE] - |
363 |
|
|
lastst.rpccnt[NFSPROC_WRITE], |
364 |
|
|
nfsstats.rpccnt[NFSPROC_RENAME] - |
365 |
|
|
lastst.rpccnt[NFSPROC_RENAME], |
366 |
|
|
nfsstats.rpccnt[NFSPROC_ACCESS] - |
367 |
|
|
lastst.rpccnt[NFSPROC_ACCESS], |
368 |
|
|
(nfsstats.rpccnt[NFSPROC_READDIR] - |
369 |
|
|
lastst.rpccnt[NFSPROC_READDIR]) + |
370 |
|
|
(nfsstats.rpccnt[NFSPROC_READDIRPLUS] - |
371 |
|
|
lastst.rpccnt[NFSPROC_READDIRPLUS])); |
372 |
|
|
if (display & SHOW_SERVER) |
373 |
|
|
printf("Server: " |
374 |
|
|
"%8llu %8llu %8llu %8llu %8llu %8llu %8llu %8llu\n", |
375 |
|
|
nfsstats.srvrpccnt[NFSPROC_GETATTR] - |
376 |
|
|
lastst.srvrpccnt[NFSPROC_GETATTR], |
377 |
|
|
nfsstats.srvrpccnt[NFSPROC_LOOKUP] - |
378 |
|
|
lastst.srvrpccnt[NFSPROC_LOOKUP], |
379 |
|
|
nfsstats.srvrpccnt[NFSPROC_READLINK] - |
380 |
|
|
lastst.srvrpccnt[NFSPROC_READLINK], |
381 |
|
|
nfsstats.srvrpccnt[NFSPROC_READ] - |
382 |
|
|
lastst.srvrpccnt[NFSPROC_READ], |
383 |
|
|
nfsstats.srvrpccnt[NFSPROC_WRITE] - |
384 |
|
|
lastst.srvrpccnt[NFSPROC_WRITE], |
385 |
|
|
nfsstats.srvrpccnt[NFSPROC_RENAME] - |
386 |
|
|
lastst.srvrpccnt[NFSPROC_RENAME], |
387 |
|
|
nfsstats.srvrpccnt[NFSPROC_ACCESS] - |
388 |
|
|
lastst.srvrpccnt[NFSPROC_ACCESS], |
389 |
|
|
(nfsstats.srvrpccnt[NFSPROC_READDIR] - |
390 |
|
|
lastst.srvrpccnt[NFSPROC_READDIR]) + |
391 |
|
|
(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS] - |
392 |
|
|
lastst.srvrpccnt[NFSPROC_READDIRPLUS])); |
393 |
|
|
lastst = nfsstats; |
394 |
|
|
fflush(stdout); |
395 |
|
|
sigemptyset(&emptyset); |
396 |
|
|
if (!signalled) |
397 |
|
|
sigsuspend(&emptyset); |
398 |
|
|
signalled = 0; |
399 |
|
|
(void)alarm(interval); |
400 |
|
|
} |
401 |
|
|
/*NOTREACHED*/ |
402 |
|
|
} |
403 |
|
|
|
404 |
|
|
void |
405 |
|
|
printhdr(void) |
406 |
|
|
{ |
407 |
|
|
printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", |
408 |
|
|
"Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", |
409 |
|
|
"Access", "Readdir"); |
410 |
|
|
fflush(stdout); |
411 |
|
|
} |
412 |
|
|
|
413 |
|
|
/* |
414 |
|
|
* Called if an interval expires before sidewaysintpr has completed a loop. |
415 |
|
|
* Sets a flag to not wait for the alarm. |
416 |
|
|
*/ |
417 |
|
|
/* ARGSUSED */ |
418 |
|
|
void |
419 |
|
|
catchalarm(int signo) |
420 |
|
|
{ |
421 |
|
|
signalled = 1; |
422 |
|
|
} |
423 |
|
|
|
424 |
|
|
void |
425 |
|
|
usage(void) |
426 |
|
|
{ |
427 |
|
|
extern char *__progname; |
428 |
|
|
|
429 |
|
|
fprintf(stderr, "usage: %s [-cs] [-M core] [-N system] [-w wait]\n", |
430 |
|
|
__progname); |
431 |
|
|
exit(1); |
432 |
|
|
} |