/* $OpenBSD: nfsstat.c,v 1.21 2003/07/07 21:36:52 deraadt Exp $ */ /* $NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $ */ /* * Copyright (c) 1983, 1989, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Rick Macklem at The University of Guelph. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1983, 1989, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "from: @(#)nfsstat.c 8.1 (Berkeley) 6/6/93"; static char *rcsid = "$NetBSD: nfsstat.c,v 1.7 1996/03/03 17:21:30 thorpej Exp $"; #else static char *rcsid = "$OpenBSD: nfsstat.c,v 1.21 2003/07/07 21:36:52 deraadt Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define SHOW_SERVER 0x01 #define SHOW_CLIENT 0x02 #define SHOW_ALL (SHOW_SERVER | SHOW_CLIENT) struct nlist nl[] = { #define N_NFSSTAT 0 { "_nfsstats" }, { "" }, }; kvm_t *kd; volatile sig_atomic_t signalled; /* set if alarm goes off "early" */ int nfs_id; void getnfsstats(struct nfsstats *); void printhdr(void); void intpr(u_int); void sidewaysintpr(u_int, u_int); void usage(void); void catchalarm(int); int main(int argc, char *argv[]) { extern int optind; extern char *optarg; char *p; u_int interval; u_int display = SHOW_ALL; char *memf, *nlistf; int ch; interval = 0; memf = nlistf = NULL; while ((ch = getopt(argc, argv, "M:N:w:sc")) != -1) switch(ch) { case 'M': memf = optarg; break; case 'N': nlistf = optarg; break; case 'w': interval = (u_int)strtol(optarg, &p, 0); if (*optarg == '\0' || *p != '\0') errx(1, "invalid interval"); break; case 's': display = SHOW_SERVER; break; case 'c': display = SHOW_CLIENT; break; case '?': default: usage(); } argc -= optind; argv += optind; #define BACKWARD_COMPATIBILITY #ifdef BACKWARD_COMPATIBILITY if (*argv) { interval = atoi(*argv); if (*++argv) { nlistf = *argv; if (*++argv) memf = *argv; } } #endif if (nlistf || memf) { char errbuf[_POSIX2_LINE_MAX]; if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == 0) errx(1, "nfsstat: %s", errbuf); if (kvm_nlist(kd, nl) != 0) errx(1, "kvm_nlist: can't get names"); } else { int mib[4]; size_t len; mib[0] = CTL_VFS; mib[1] = VFS_GENERIC; mib[2] = VFS_MAXTYPENUM; len = sizeof(nfs_id); if (sysctl(mib, 3, &nfs_id, &len, NULL, 0)) err(1, "sysctl: VFS_MAXTYPENUM"); for (; nfs_id; nfs_id--) { struct vfsconf vfsc; mib[0] = CTL_VFS; mib[1] = VFS_GENERIC; mib[2] = VFS_CONF; mib[3] = nfs_id; len = sizeof(vfsc); if (sysctl(mib, 4, &vfsc, &len, NULL, 0)) continue; if (!strcmp(vfsc.vfc_name, MOUNT_NFS)) break; } if (nfs_id == 0) errx(1, "cannot find nfs filesystem id"); } if (interval) sidewaysintpr(interval, display); else intpr(display); return 0; } void getnfsstats(struct nfsstats *p) { if (kd) { if (kvm_read(kd, nl[N_NFSSTAT].n_value, p, sizeof(*p)) != sizeof(*p)) errx(1, "kvm_read failed"); } else { int mib[3]; size_t len = sizeof(*p); mib[0] = CTL_VFS; mib[1] = nfs_id; /* 2 */ mib[2] = NFS_NFSSTATS; if (sysctl(mib, 3, p, &len, NULL, 0)) err(1, "sysctl"); } } /* * Print a description of the nfs stats. */ void intpr(u_int display) { struct nfsstats nfsstats; getnfsstats(&nfsstats); if (display & SHOW_CLIENT) { printf("Client Info:\n"); printf("Rpc Counts:\n"); printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", "Getattr", "Setattr", "Lookup", "Readlink", "Read", "Write", "Create", "Remove"); printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", nfsstats.rpccnt[NFSPROC_GETATTR], nfsstats.rpccnt[NFSPROC_SETATTR], nfsstats.rpccnt[NFSPROC_LOOKUP], nfsstats.rpccnt[NFSPROC_READLINK], nfsstats.rpccnt[NFSPROC_READ], nfsstats.rpccnt[NFSPROC_WRITE], nfsstats.rpccnt[NFSPROC_CREATE], nfsstats.rpccnt[NFSPROC_REMOVE]); printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", "Rename", "Link", "Symlink", "Mkdir", "Rmdir", "Readdir", "RdirPlus", "Access"); printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", nfsstats.rpccnt[NFSPROC_RENAME], nfsstats.rpccnt[NFSPROC_LINK], nfsstats.rpccnt[NFSPROC_SYMLINK], nfsstats.rpccnt[NFSPROC_MKDIR], nfsstats.rpccnt[NFSPROC_RMDIR], nfsstats.rpccnt[NFSPROC_READDIR], nfsstats.rpccnt[NFSPROC_READDIRPLUS], nfsstats.rpccnt[NFSPROC_ACCESS]); printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); printf("%9d %9d %9d %9d %9d\n", nfsstats.rpccnt[NFSPROC_MKNOD], nfsstats.rpccnt[NFSPROC_FSSTAT], nfsstats.rpccnt[NFSPROC_FSINFO], nfsstats.rpccnt[NFSPROC_PATHCONF], nfsstats.rpccnt[NFSPROC_COMMIT]); printf("Rpc Info:\n"); printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", "TimedOut", "Invalid", "X Replies", "Retries", "Requests"); printf("%9d %9d %9d %9d %9d\n", nfsstats.rpctimeouts, nfsstats.rpcinvalid, nfsstats.rpcunexpected, nfsstats.rpcretries, nfsstats.rpcrequests); printf("Cache Info:\n"); printf("%9.9s %9.9s %9.9s %9.9s", "Attr Hits", "Misses", "Lkup Hits", "Misses"); printf(" %9.9s %9.9s %9.9s %9.9s\n", "BioR Hits", "Misses", "BioW Hits", "Misses"); printf("%9d %9d %9d %9d", nfsstats.attrcache_hits, nfsstats.attrcache_misses, nfsstats.lookupcache_hits, nfsstats.lookupcache_misses); printf(" %9d %9d %9d %9d\n", nfsstats.biocache_reads-nfsstats.read_bios, nfsstats.read_bios, nfsstats.biocache_writes-nfsstats.write_bios, nfsstats.write_bios); printf("%9.9s %9.9s %9.9s %9.9s", "BioRLHits", "Misses", "BioD Hits", "Misses"); printf(" %9.9s %9.9s\n", "DirE Hits", "Misses"); printf("%9d %9d %9d %9d", nfsstats.biocache_readlinks-nfsstats.readlink_bios, nfsstats.readlink_bios, nfsstats.biocache_readdirs-nfsstats.readdir_bios, nfsstats.readdir_bios); printf(" %9d %9d\n", nfsstats.direofcache_hits, nfsstats.direofcache_misses); } if (display & SHOW_SERVER) { printf("\nServer Info:\n"); printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", "Getattr", "Setattr", "Lookup", "Readlink", "Read", "Write", "Create", "Remove"); printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", nfsstats.srvrpccnt[NFSPROC_GETATTR], nfsstats.srvrpccnt[NFSPROC_SETATTR], nfsstats.srvrpccnt[NFSPROC_LOOKUP], nfsstats.srvrpccnt[NFSPROC_READLINK], nfsstats.srvrpccnt[NFSPROC_READ], nfsstats.srvrpccnt[NFSPROC_WRITE], nfsstats.srvrpccnt[NFSPROC_CREATE], nfsstats.srvrpccnt[NFSPROC_REMOVE]); printf("%9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s\n", "Rename", "Link", "Symlink", "Mkdir", "Rmdir", "Readdir", "RdirPlus", "Access"); printf("%9d %9d %9d %9d %9d %9d %9d %9d\n", nfsstats.srvrpccnt[NFSPROC_RENAME], nfsstats.srvrpccnt[NFSPROC_LINK], nfsstats.srvrpccnt[NFSPROC_SYMLINK], nfsstats.srvrpccnt[NFSPROC_MKDIR], nfsstats.srvrpccnt[NFSPROC_RMDIR], nfsstats.srvrpccnt[NFSPROC_READDIR], nfsstats.srvrpccnt[NFSPROC_READDIRPLUS], nfsstats.srvrpccnt[NFSPROC_ACCESS]); printf("%9.9s %9.9s %9.9s %9.9s %9.9s\n", "Mknod", "Fsstat", "Fsinfo", "PathConf", "Commit"); printf("%9d %9d %9d %9d %9d\n", nfsstats.srvrpccnt[NFSPROC_MKNOD], nfsstats.srvrpccnt[NFSPROC_FSSTAT], nfsstats.srvrpccnt[NFSPROC_FSINFO], nfsstats.srvrpccnt[NFSPROC_PATHCONF], nfsstats.srvrpccnt[NFSPROC_COMMIT]); printf("Server Ret-Failed\n"); printf("%17d\n", nfsstats.srvrpc_errs); printf("Server Faults\n"); printf("%13d\n", nfsstats.srv_errs); printf("Server Cache Stats:\n"); printf("%9.9s %9.9s %9.9s %9.9s\n", "Inprog", "Idem", "Non-idem", "Misses"); printf("%9d %9d %9d %9d\n", nfsstats.srvcache_inproghits, nfsstats.srvcache_idemdonehits, nfsstats.srvcache_nonidemdonehits, nfsstats.srvcache_misses); printf("Server Write Gathering:\n"); printf("%9.9s %9.9s %9.9s\n", "WriteOps", "WriteRPC", "Opsaved"); printf("%9d %9d %9d\n", nfsstats.srvvop_writes, nfsstats.srvrpccnt[NFSPROC_WRITE], nfsstats.srvrpccnt[NFSPROC_WRITE] - nfsstats.srvvop_writes); } } /* * Print a running summary of nfs statistics. * Repeat display every interval seconds, showing statistics * collected over that interval. Assumes that interval is non-zero. * First line printed at top of screen is always cumulative. */ void sidewaysintpr(u_int interval, u_int display) { struct nfsstats nfsstats, lastst; int hdrcnt; sigset_t emptyset; (void)signal(SIGALRM, catchalarm); signalled = 0; (void)alarm(interval); bzero((caddr_t)&lastst, sizeof(lastst)); for (hdrcnt = 1;;) { if (!--hdrcnt) { printhdr(); hdrcnt = 20; } getnfsstats(&nfsstats); if (display & SHOW_CLIENT) printf("Client: %8d %8d %8d %8d %8d %8d %8d %8d\n", nfsstats.rpccnt[NFSPROC_GETATTR]-lastst.rpccnt[NFSPROC_GETATTR], nfsstats.rpccnt[NFSPROC_LOOKUP]-lastst.rpccnt[NFSPROC_LOOKUP], nfsstats.rpccnt[NFSPROC_READLINK]-lastst.rpccnt[NFSPROC_READLINK], nfsstats.rpccnt[NFSPROC_READ]-lastst.rpccnt[NFSPROC_READ], nfsstats.rpccnt[NFSPROC_WRITE]-lastst.rpccnt[NFSPROC_WRITE], nfsstats.rpccnt[NFSPROC_RENAME]-lastst.rpccnt[NFSPROC_RENAME], nfsstats.rpccnt[NFSPROC_ACCESS]-lastst.rpccnt[NFSPROC_ACCESS], (nfsstats.rpccnt[NFSPROC_READDIR]-lastst.rpccnt[NFSPROC_READDIR]) +(nfsstats.rpccnt[NFSPROC_READDIRPLUS]-lastst.rpccnt[NFSPROC_READDIRPLUS])); if (display & SHOW_SERVER) printf("Server: %8d %8d %8d %8d %8d %8d %8d %8d\n", nfsstats.srvrpccnt[NFSPROC_GETATTR]-lastst.srvrpccnt[NFSPROC_GETATTR], nfsstats.srvrpccnt[NFSPROC_LOOKUP]-lastst.srvrpccnt[NFSPROC_LOOKUP], nfsstats.srvrpccnt[NFSPROC_READLINK]-lastst.srvrpccnt[NFSPROC_READLINK], nfsstats.srvrpccnt[NFSPROC_READ]-lastst.srvrpccnt[NFSPROC_READ], nfsstats.srvrpccnt[NFSPROC_WRITE]-lastst.srvrpccnt[NFSPROC_WRITE], nfsstats.srvrpccnt[NFSPROC_RENAME]-lastst.srvrpccnt[NFSPROC_RENAME], nfsstats.srvrpccnt[NFSPROC_ACCESS]-lastst.srvrpccnt[NFSPROC_ACCESS], (nfsstats.srvrpccnt[NFSPROC_READDIR]-lastst.srvrpccnt[NFSPROC_READDIR]) +(nfsstats.srvrpccnt[NFSPROC_READDIRPLUS]-lastst.srvrpccnt[NFSPROC_READDIRPLUS])); lastst = nfsstats; fflush(stdout); sigemptyset(&emptyset); if (!signalled) sigsuspend(&emptyset); signalled = 0; (void)alarm(interval); } /*NOTREACHED*/ } void printhdr(void) { printf(" %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s %8.8s\n", "Getattr", "Lookup", "Readlink", "Read", "Write", "Rename", "Access", "Readdir"); fflush(stdout); } /* * Called if an interval expires before sidewaysintpr has completed a loop. * Sets a flag to not wait for the alarm. */ void catchalarm(int signo) { signalled = 1; } void usage(void) { extern char *__progname; fprintf(stderr, "usage: %s [-M core] [-N system] [-s] [-c] [-w interval]\n", __progname); exit(1); }