/* * freebsd_system.c für FreeBSD-3.X * COPYRIGHT 1998 by Lars Köller * * Work has started on 7th Sep 1998 on Northsea island Föhr. * * $Id: freebsd_system.c,v 3.8 2001/04/10 19:39:44 lkoeller Exp lkoeller $ */ /* * Copyright (c) 1998 Lars Köller * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * */ /* * * Parts of this program are derived from the iostat program: * * Copyright (c) 1997, 1998 Kenneth D. Merry. * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * */ /* * Parts of this program are derived from other original FreeBSD programs: * * Copyright (c) 1986, 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef LINT static char rcsid[] = "$Id: freebsd_system.c,v 3.8 2001/04/10 19:39:44 lkoeller Exp lkoeller $"; #endif #include "fbsd_vers.h" #include #include "system.h" #include "is.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #if __FreeBSD_version < 400000 #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct nlist namelist[] = { #define X_HZ 0 { "_hz" }, #define X_STATHZ 1 { "_stathz" }, #define X_CP_TIME 2 { "_cp_time" }, #define X_TK_NIN 3 { "_tk_nin" }, #define X_TK_NOUT 4 { "_tk_nout" }, #define N_IFNET 5 { "_ifnet" }, #define X_INTRCNT 6 { "_intrcnt" }, #define X_EINTRCNT 7 { "_eintrcnt" }, #define X_BOOTTIME 8 { "_boottime" }, #if __FreeBSD_version < 400000 #define VM_NSWAP 9 { "_nswap" }, #define VM_NSWDEV 10 { "_nswdev" }, #define VM_DMMAX 11 { "_dmmax" }, #define VM_SWAPLIST 12 { "_swaplist" }, #define VM_SWDEVT 13 { "_swdevt" }, #define X_END 13 { NULL }, #else #define X_END 8 { NULL }, #endif /* __FreeBSD_version < 400000 */ }; extern Widget perfmon[NUM_GRAPHS]; extern char *info1; double current_values[NUM_GRAPHS]; static kvm_t *kd; static char errbuf[_POSIX2_LINE_MAX]; static int has_nfs; static int hz, stathz; static double etime, pct; static long tmp; struct vfsconf vfc; /* * Variables holding the statistic information */ static struct statinfo cur, last; static struct nfsstats nfsstats; static struct _nfsStats { int ServerCalls, ServerCacheHit, ServerCacheMis; int ClientCalls, ClientCacheHit, ClientCacheMis; } nfsStats, old_nfsStats; static struct _packets { int input, output, collisions; } packets, old_packets; static int interrupts, old_interrupts; /* * Variables need for devstat to get diskio statistics */ static struct statinfo cur, last; static struct devstat_match *matches = NULL; static struct device_selection *dev_select = NULL; static int num_matches = 0, num_devices = 0, ncpu; static int num_selected = 0, num_selections = 0; static int num_devices_specified = 0, maxshowdevs; static long generation, select_generation; static char **specified_devices = NULL; static struct _diskstat { long double da_trsf, da_mb; long double cd_trsf, cd_mb; long double sa_trsf, sa_mb; } diskstat; void sys_setup(void); void update_stats(void); static void get_namelist(const char *kernel_name, const char *memory_name); static void kread(int nlx, void *addr, size_t size); static double get_load(void); static void get_cpustat(void); static void get_ttystat(void); static void get_interrupts(void); static void init_diskio(void); static void get_diskio(void); static double get_swapspace(void); static void get_netstat(void); static void get_nfsstat(void); void sys_setup(void) { int size; get_namelist(getbootfile(), _PATH_MEM); /* To make calc of etime independent of number of CPUs */ size = sizeof(ncpu); if (sysctlbyname("hw.ncpu", &ncpu, &size, NULL, 0) < 0) ncpu = 1; /* Initialize all stats, i.e. global variables */ get_cpustat(); get_load(); get_ttystat(); interrupts=0; get_interrupts(); init_diskio(); get_diskio(); get_netstat(); /* * To force first scale of 'free swapspace' to 100%, we need * set it the first time by hand! */ current_values[FREE_MEM] = 100 * SCALE_HACK; /* * Check if we have NFS in the kernel */ if (getvfsbyname("nfs", &vfc) < 0) { fprintf(stderr, "xperfmon++: getvfsbyname: NFS not compiled into kernel\n"); has_nfs = FALSE; } else { has_nfs = TRUE; get_nfsstat(); } } void update_stats(void) { static int firsttime = 1, i = FREE_MEM_INT; /* * For any stat we need etime, so get it! */ get_cpustat(); current_values[ USER_CPU_PERCENTAGE] = cur.cp_time[CP_USER] * pct * SCALE_HACK; current_values[ NICE_CPU_PERCENTAGE] = cur.cp_time[CP_NICE] * pct * SCALE_HACK; current_values[SYSTEM_CPU_PERCENTAGE] = cur.cp_time[CP_SYS] * pct * SCALE_HACK; current_values[ INTER_CPU_PERCENTAGE] = cur.cp_time[CP_INTR] * pct * SCALE_HACK; current_values[ IDLE_CPU_PERCENTAGE] = cur.cp_time[CP_IDLE] * pct * SCALE_HACK; if (perfmon[LOAD]) current_values[LOAD] = get_load() * SCALE_HACK; if (perfmon[TTY_CHARS_IN] || perfmon[TTY_CHARS_OUT]) { get_ttystat(); current_values[TTY_IN] = cur.tk_nin/etime * SCALE_HACK; current_values[TTY_OUT] = cur.tk_nout/etime * SCALE_HACK; } if (perfmon[INTERRUPTS]) { get_interrupts(); current_values[INTERRUPTS] = (interrupts - old_interrupts)/etime * SCALE_HACK; } if (perfmon[FREE_MEM] && !firsttime) { /* Calc swapspace only every FREE_MEM_INT intervals */ if ( i == FREE_MEM_INT ) { i = 1; current_values[FREE_MEM] = get_swapspace() * SCALE_HACK; } else i++; } else { /* First time called we set freeswap to 100% to have full scale!*/ firsttime--; current_values[FREE_MEM] = 100 * SCALE_HACK; } if (perfmon[DISK_TRANSFERS] || perfmon[DISK_MB] || perfmon[TAPE_TRANSFERS] || perfmon[TAPE_MB] || perfmon[CDROM_TRANSFERS] || perfmon[CDROM_MB] ) { get_diskio(); current_values[DISK_TRANSFERS] = diskstat.da_trsf * SCALE_HACK; current_values[DISK_MB] = diskstat.da_mb * SCALE_HACK; current_values[TAPE_TRANSFERS] = diskstat.sa_trsf * SCALE_HACK; current_values[TAPE_MB] = diskstat.sa_mb * SCALE_HACK; current_values[CDROM_TRANSFERS] = diskstat.cd_trsf * SCALE_HACK; current_values[CDROM_MB] = diskstat.cd_mb * SCALE_HACK; } if (perfmon[INPUT_PACKETS] || perfmon[OUTPUT_PACKETS] || perfmon[COLLISION_PACKETS]){ get_netstat(); current_values[ INPUT_PACKETS] = (packets.input - old_packets.input)/etime * SCALE_HACK; current_values[ OUTPUT_PACKETS] = (packets.output - old_packets.output)/etime * SCALE_HACK; /* LK!!! DEBUG printf("input: %f output: %f\n",current_values[INPUT_PACKETS]/SCALE_HACK, current_values[ OUTPUT_PACKETS]/SCALE_HACK); */ current_values[COLLISION_PACKETS] = (packets.collisions - old_packets.collisions)/etime * SCALE_HACK; } if (has_nfs && (perfmon[NFS_CLIENT_CALLS] || perfmon[NFS_CLIENT_HIT] || perfmon[NFS_CLIENT_MIS] || perfmon[NFS_SERVER_CALLS] || perfmon[NFS_SERVER_HIT] || perfmon[NFS_SERVER_MIS])) { get_nfsstat(); current_values[NFS_CLIENT_CALLS] = (nfsStats.ClientCalls - old_nfsStats.ClientCalls)/etime * SCALE_HACK; current_values[NFS_SERVER_CALLS] = (nfsStats.ServerCalls - old_nfsStats.ServerCalls)/etime * SCALE_HACK; current_values[NFS_CLIENT_HIT] = (nfsStats.ClientCacheHit - old_nfsStats.ClientCacheHit)/etime * SCALE_HACK; current_values[NFS_CLIENT_MIS] = (nfsStats.ClientCacheMis - old_nfsStats.ClientCacheMis)/etime * SCALE_HACK; current_values[NFS_SERVER_HIT] = (nfsStats.ServerCacheHit - old_nfsStats.ServerCacheHit)/etime * SCALE_HACK; current_values[NFS_SERVER_MIS] = (nfsStats.ServerCacheMis - old_nfsStats.ServerCacheMis)/etime * SCALE_HACK; } } static void get_namelist(kernel_name, memory_name) const char *kernel_name, *memory_name; { register int i, ret; time_t now, boottime; int nintv; kd = kvm_openfiles(kernel_name, memory_name, NULL, O_RDONLY, errbuf); if (kd == 0) errx(1, "xperfmon++: kvm_openfiles: %s", errbuf); if ((ret = kvm_nlist(kd, namelist)) != 0) { if (ret > 0) { (void)fprintf(stderr, "xperfmon++: undefined symbols:"); for (i = 0; i < sizeof(namelist)/sizeof(namelist[0]); i++) if (namelist[i].n_type == 0 || namelist[i].n_value == 0) fprintf(stderr, "%s", namelist[i].n_name); fprintf(stderr, "\n"); } else errx(1, "xperfmon++: kvm_nlist: %s", kvm_geterr(kd)); exit(1); } kread(X_HZ, &hz, sizeof(hz)); kread(X_STATHZ, &stathz, sizeof(stathz)); if (stathz) hz = stathz; kread(X_BOOTTIME, &boottime, sizeof(boottime)); time(&now); nintv = now - boottime; if (nintv <= 0 || nintv > 60*60*24*365*10) errx(1, "Time makes no sense ... namelist must be wrong"); } static void kread(nlx, addr, size) int nlx; void *addr; size_t size; { char *sym; if (kvm_read(kd, namelist[nlx].n_value, addr, size) != size) { sym = namelist[nlx].n_name; if (*sym == '_') ++sym; errx(1, "xperfmon++: %s: %s", sym, kvm_geterr(kd)); } } static void get_cpustat(void) { register int i; double tot; kread(X_CP_TIME, cur.cp_time, sizeof(cur.cp_time)); etime = 0.0; for (i = 0; i < CPUSTATES; i++) { tmp = cur.cp_time[i]; cur.cp_time[i] -= last.cp_time[i]; last.cp_time[i] = tmp; etime += cur.cp_time[i]; } tot = etime; if (etime == 0.0 ) etime = 1.0; etime /= (float)hz; etime /= ncpu; /* * scale to percent */ if(tot) pct = 100.0 / tot; else pct = 0; } static double get_load(void) { double loadavg[3]; loadavg[0] = 0.0; if (getloadavg(loadavg, sizeof(loadavg)/sizeof(loadavg[0])) == -1) { fprintf(stderr, "xperfmon++: getloadavg() returned no values\n"); return(0.0); } return(loadavg[0]); } static void get_ttystat(void) { kread(X_TK_NIN, &cur.tk_nin, sizeof(cur.tk_nin)); kread(X_TK_NOUT, &cur.tk_nout, sizeof(cur.tk_nout)); tmp = cur.tk_nin; cur.tk_nin -= last.tk_nin; last.tk_nin = tmp; tmp = cur.tk_nout; cur.tk_nout -= last.tk_nout; last.tk_nout = tmp; } static void get_interrupts(void) { register int i; unsigned long *intrcnt; int nintr; old_interrupts = interrupts; nintr = namelist[X_EINTRCNT].n_value - namelist[X_INTRCNT].n_value; if ((intrcnt = (unsigned long *)malloc((size_t) nintr)) == NULL) err(1, "xperfmon++: malloc failed in get_interrupts()"); nintr /= sizeof(long); kread(X_INTRCNT, intrcnt, (size_t)nintr*sizeof(long)); for (i = 0, interrupts = 0; i < nintr; i++) interrupts += *(intrcnt + i); free(intrcnt); } /* * Parts extracted from /usr/src/usr.bin/nfsstat/nfsstat.c * pay attention Copyrights! */ static void get_nfsstat(void) { #if __FreeBSD_version < 400001 int name[3]; size_t size = sizeof(nfsstats); name[0] = CTL_VFS; name[1] = vfc.vfc_typenum; name[2] = NFS_NFSSTATS; if (sysctl(name, 3, &nfsstats, &size, (void *)0, (size_t)0) < 0) { #else size_t size = sizeof(nfsstats); if (sysctlbyname("vfs.nfs.nfsstats", &nfsstats, &size, (void *)0, (size_t)0) < 0) { #endif fprintf(stderr, "xperfmon++: get_nfsstat(): Can't get NFS statistics with sysctl()\n"); return; } old_nfsStats = nfsStats; nfsStats.ClientCalls = 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] + 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] + nfsstats.rpccnt[NFSPROC_MKNOD] + nfsstats.rpccnt[NFSPROC_FSSTAT] + nfsstats.rpccnt[NFSPROC_FSINFO] + nfsstats.rpccnt[NFSPROC_PATHCONF] + nfsstats.rpccnt[NFSPROC_COMMIT] + nfsstats.rpccnt[NQNFSPROC_GETLEASE] + nfsstats.rpccnt[NQNFSPROC_VACATED] + nfsstats.rpccnt[NQNFSPROC_EVICTED]; nfsStats.ClientCacheHit = nfsstats.attrcache_hits + nfsstats.lookupcache_hits + nfsstats.biocache_reads - nfsstats.read_bios + nfsstats.biocache_writes - nfsstats.write_bios + nfsstats.biocache_readlinks - nfsstats.readlink_bios + nfsstats.biocache_readdirs - nfsstats.readdir_bios + nfsstats.direofcache_hits; nfsStats.ClientCacheMis = nfsstats.attrcache_misses + nfsstats.lookupcache_misses + nfsstats.read_bios + nfsstats.write_bios + nfsstats.readlink_bios + nfsstats.readdir_bios + nfsstats.direofcache_misses; nfsStats.ServerCalls = 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] + 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] + nfsstats.srvrpccnt[NFSPROC_MKNOD] + nfsstats.srvrpccnt[NFSPROC_FSSTAT] + nfsstats.srvrpccnt[NFSPROC_FSINFO] + nfsstats.srvrpccnt[NFSPROC_PATHCONF] + nfsstats.srvrpccnt[NFSPROC_COMMIT] + nfsstats.srvrpccnt[NQNFSPROC_GETLEASE] + nfsstats.srvrpccnt[NQNFSPROC_VACATED] + nfsstats.srvrpccnt[NQNFSPROC_EVICTED]; nfsStats.ServerCacheHit = nfsstats.srvcache_inproghits + nfsstats.srvcache_idemdonehits + nfsstats.srvcache_nonidemdonehits; nfsStats.ServerCacheMis = nfsstats.srvcache_misses; } /* * Stolen from /usr/src/usr.sbin/pstat/pstat.c and * /usr/src/usr.bin/top/machine.c (pay attention Copyrights!) */ static double get_swapspace(void) { #if __FreeBSD_version >= 400000 /* based on swapmode from /usr/src/usr.bin/top/machine.c */ int n; int percentfree; struct kvm_swap swapary[1]; n = kvm_getswapinfo(kd, swapary, 1, 0); if (n < 0 || swapary[0].ksw_total == 0) return(0); percentfree = ((((double)swapary[0].ksw_total - (double)swapary[0].ksw_used) * 100.0) / (double)swapary[0].ksw_total); return(percentfree); #else /* based on /usr/src/usr.sbin/pstat/pstat.c */ char *header; int hlen, nswap, nswdev, dmmax; int i, div, avail, nfree, npfree, used; struct swdevt *sw; long blocksize, *perdev; struct rlist head; struct rlisthdr swaplist; struct rlist *swapptr; u_long ptr; kread(VM_NSWAP, &nswap, sizeof(nswap)); kread(VM_NSWDEV, &nswdev, sizeof(nswdev)); kread(VM_DMMAX, &dmmax, sizeof(dmmax)); kread(VM_SWAPLIST, &swaplist, sizeof(swaplist)); if ((sw = malloc(nswdev * sizeof(*sw))) == NULL || (perdev = malloc(nswdev * sizeof(*perdev))) == NULL) err(1, "xperfmon++ malloc in get_swapspace"); kread(VM_SWDEVT, &ptr, sizeof(ptr)); kvm_read(kd, ptr, sw, nswdev * sizeof(*sw)); /* Count up swap space. */ nfree = 0; memset(perdev, 0, nswdev * sizeof(*perdev)); swapptr = swaplist.rlh_list; while (swapptr) { int top, bottom, next_block; kvm_read(kd, (u_long)swapptr, &head, sizeof(struct rlist)); top = head.rl_end; bottom = head.rl_start; nfree += top - bottom + 1; /* * Swap space is split up among the configured disks. * * For interleaved swap devices, the first dmmax blocks * of swap space some from the first disk, the next dmmax * blocks from the next, and so on up to nswap blocks. * * The list of free space joins adjacent free blocks, * ignoring device boundries. If we want to keep track * of this information per device, we'll just have to * extract it ourselves. */ while (top / dmmax != bottom / dmmax) { next_block = ((bottom + dmmax) / dmmax); perdev[(bottom / dmmax) % nswdev] += next_block * dmmax - bottom; bottom = next_block * dmmax; } perdev[(bottom / dmmax) % nswdev] += top - bottom + 1; swapptr = head.rl_next; } header = getbsize(&hlen, &blocksize); div = blocksize / 512; avail = npfree = 0; for (i = 0; i < nswdev; i++) { int xsize, xfree; /* * Don't report statistics for partitions which have not * yet been activated via swapon(8). */ if (!(sw[i].sw_flags & SW_FREED)) continue; /* The first dmmax is never allocated to avoid trashing of * disklabels */ xsize = sw[i].sw_nblks - dmmax; xfree = perdev[i]; used = xsize - xfree; npfree++; avail += xsize; } /* * If only one partition has been set up via swapon(8), we don't * need to bother with totals. */ used = avail - nfree; free(sw); free(perdev); return((100.0*nfree)/avail); #endif /* __FreeBSD_version >= 400000 */ } /* * Stolen from /usr/src/usr.bin/netstat/if.c * pay attention Copyrights! */ static void get_netstat(void) { off_t ifnetaddr; char name[32], tname[16], *interface = '\0'; if ((ifnetaddr = namelist[N_IFNET].n_value) != 0) { struct ifnet ifnet; struct ifnethead ifnethead; u_long ifaddraddr, ifnetfound; struct ifaddr ifa; if(kvm_read(kd, ifnetaddr, (char *)&ifnethead, sizeof(ifnethead)) == -1) return; ifnetaddr = (u_long)ifnethead.tqh_first; if(kvm_read(kd, ifnetaddr, (char *)&ifnet, sizeof(ifnet)) == -1) return; old_packets = packets; packets.input = packets.output = packets.collisions = 0; ifaddraddr = 0; while (ifnetaddr || ifaddraddr) { if (ifaddraddr == 0) { ifnetfound = ifnetaddr; /* Get stats and interface name to select a specific one (TODO) */ if(kvm_read(kd, ifnetaddr, (char *)&ifnet, sizeof ifnet) == -1 || kvm_read(kd, (u_long)ifnet.if_name, (char *)tname, 16) == -1) return; tname[15] = '\0'; ifnetaddr = (u_long)ifnet.if_link.tqe_next; snprintf(name, 32, "%s%d", tname, ifnet.if_unit); if (interface != 0 && (strcmp(name, interface) != 0)) continue; ifaddraddr = (u_long)ifnet.if_addrhead.tqh_first; } if (kvm_read(kd, ifaddraddr, (char *)&ifa, sizeof ifa) == -1) { ifaddraddr = 0; continue; } ifaddraddr = (u_long)ifa.ifa_link.tqe_next; /* Normalize number of packets, we count interface four timess */ packets.input += (ifnet.if_ipackets >> 2); packets.output += (ifnet.if_opackets >> 2); packets.collisions += ifnet.if_collisions; } } } /* * Many thanks to Kenneth Merry who helped to code * the initial disk statistic routines */ static void init_diskio(void) { int retval; cur.dinfo = (struct devinfo *) malloc(sizeof(struct devinfo)); last.dinfo = (struct devinfo *) malloc(sizeof(struct devinfo)); bzero(cur.dinfo, sizeof(struct devinfo)); bzero(last.dinfo, sizeof(struct devinfo)); if (checkversion() < 0) errx(1, "xperfmon++: %s", devstat_errbuf); /* * man muß über specified devices gehen, um da1,... zu * selektieren, siehe /usr/src/usr.sbin/iostat/iostat.c */ /* printf("%s\n", info1); LK!!! */ if (buildmatch("da", &matches, &num_matches) != 0) errx(1, "xperfmon++: %s", devstat_errbuf); if (buildmatch("sa", &matches, &num_matches) != 0) errx(1, "xperfmon++: %s", devstat_errbuf); if (buildmatch("cd", &matches, &num_matches) != 0) errx(1, "xperfmon++: %s", devstat_errbuf); if (getdevs(&cur) == -1) errx(1, "xperfmon++: %s", devstat_errbuf); maxshowdevs = 50; num_devices = cur.dinfo->numdevs; generation = cur.dinfo->generation; retval = selectdevs(&dev_select, &num_selected, &num_selections, &select_generation, generation, cur.dinfo->devices, num_devices, matches, num_matches, specified_devices, num_devices_specified, DS_SELECT_ONLY, maxshowdevs, 0); switch (retval) { case -1: errx(1, "xperfmon++: %s", devstat_errbuf); break; default: break; } } static void get_diskio(void) { register int dn; long double busy_seconds; long double transfers_per_second, mb_per_second; struct devinfo *tmp_dinfo; tmp_dinfo = last.dinfo; last.dinfo = cur.dinfo; cur.dinfo = tmp_dinfo; last.busy_time = cur.busy_time; switch (getdevs(&cur)) { case -1: errx(1, "xperfmon++: %s", devstat_errbuf); break; case 1: { int retval; num_devices = cur.dinfo->numdevs; generation = cur.dinfo->generation; retval = selectdevs(&dev_select, &num_selected, &num_selections, &select_generation, generation, cur.dinfo->devices, num_devices, matches, num_matches, specified_devices, num_devices_specified, DS_SELECT_ONLY, maxshowdevs, 0); switch (retval) { case -1: errx(1, "xperfmon++: %s", devstat_errbuf); break; default: break; } break; } default: break; } /* * Calculate elapsed time up front, since it's the same for all * devices. */ diskstat.da_trsf = diskstat.da_mb = 0.0; diskstat.sa_trsf = diskstat.sa_mb = 0.0; diskstat.cd_trsf = diskstat.cd_mb = 0.0; busy_seconds = compute_etime(cur.busy_time, last.busy_time); for (dn = 0; dn < num_devices; dn++) { int di; if (dev_select[dn].selected == 0) continue; di = dev_select[dn].position; if (compute_stats(&cur.dinfo->devices[di], &last.dinfo->devices[di], busy_seconds, NULL, NULL, NULL, NULL, &transfers_per_second, &mb_per_second, NULL, NULL) != 0) errx(1, "xperfmon++: %s", devstat_errbuf); if (strcmp(cur.dinfo->devices[di].device_name, "da") == 0 || strcmp(cur.dinfo->devices[di].device_name, "ad") == 0 || strcmp(cur.dinfo->devices[di].device_name, "wd") == 0) { #ifdef DEBUG printf( "da%d: %Lf %Lf\n", cur.dinfo->devices[di].unit_number, transfers_per_second, mb_per_second); #endif diskstat.da_trsf += transfers_per_second; diskstat.da_mb += mb_per_second; } if (strcmp(cur.dinfo->devices[di].device_name, "sa") == 0) { #ifdef DEBUG printf( "sa%d: %Lf %Lf\n", cur.dinfo->devices[di].unit_number, transfers_per_second, mb_per_second); #endif diskstat.sa_trsf += transfers_per_second; diskstat.sa_mb += mb_per_second; } if (strcmp(cur.dinfo->devices[di].device_name, "cd") == 0 || strcmp(cur.dinfo->devices[di].device_name, "acd") == 0) { #ifdef DEBUG printf( "cd%d: %Lf %Lf\n", cur.dinfo->devices[di].unit_number, transfers_per_second, mb_per_second); #endif diskstat.cd_trsf += transfers_per_second; diskstat.cd_mb += mb_per_second; } } }