1/* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; 37#endif 38static const char rcsid[] =
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39 "$Id: mbuf.c,v 1.9 1997/11/10 08:03:36 ache Exp $";
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39 "$Id: mbuf.c,v 1.10 1998/04/24 04:30:27 dg Exp $"; |
40#endif /* not lint */ 41 42#include <sys/param.h> 43#include <sys/mbuf.h> 44#include <sys/protosw.h> 45#include <sys/socket.h> 46#include <sys/sysctl.h> 47 48#include <err.h> 49#include <stdio.h> 50#include "netstat.h" 51 52#define YES 1 53typedef int bool; 54 55struct mbstat mbstat; 56 57static struct mbtypes { 58 int mt_type; 59 char *mt_name; 60} mbtypes[] = { 61 { MT_DATA, "data" }, 62 { MT_OOBDATA, "oob data" }, 63 { MT_CONTROL, "ancillary data" }, 64 { MT_HEADER, "packet headers" }, 65#ifdef MT_SOCKET 66 { MT_SOCKET, "socket structures" }, /* XXX */ 67#endif 68#ifdef MT_PCB 69 { MT_PCB, "protocol control blocks" }, /* XXX */ 70#endif 71 { MT_RTABLE, "routing table entries" }, /* XXX */ 72#ifdef MT_HTABLE 73 { MT_HTABLE, "IMP host table entries" }, /* XXX */ 74#endif 75#ifdef MT_ATABLE 76 { MT_ATABLE, "address resolution tables" }, 77#endif 78 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 79 { MT_SONAME, "socket names and addresses" }, 80 { MT_SOOPTS, "socket options" }, 81#ifdef MT_RIGHTS 82 { MT_RIGHTS, "access rights" }, 83#endif 84#ifdef MT_IFADDR 85 { MT_IFADDR, "interface addresses" }, /* XXX */ 86#endif 87 { 0, 0 } 88}; 89 90int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short); 91bool seen[256]; /* "have we seen this type yet?" */ 92 93/* 94 * Print mbuf statistics. 95 */ 96void
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97mbpr(mbaddr)
98 u_long mbaddr;
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97mbpr() |
98{ 99 register int totmem, totfree, totmbufs; 100 register int i; 101 register struct mbtypes *mp; 102 int name[3], nmbclusters, nmbclen; 103 size_t mbstatlen; 104 105 name[0] = CTL_KERN; 106 name[1] = KERN_IPC; 107 name[2] = KIPC_MBSTAT; 108 mbstatlen = sizeof mbstat; 109 if (sysctl(name, 3, &mbstat, &mbstatlen, 0, 0) < 0) { 110 warn("sysctl: retrieving mbstat"); 111 return; 112 } 113 114 name[2] = KIPC_NMBCLUSTERS; 115 nmbclen = sizeof(int); 116 if (sysctl(name, 3, &nmbclusters, &nmbclen, 0, 0) < 0) { 117 warn("sysctl: retrieving nmbclusters"); 118 return; 119 } 120#undef MSIZE 121#define MSIZE (mbstat.m_msize) 122#undef MCLBYTES 123#define MCLBYTES (mbstat.m_mclbytes) 124 125 if (nmbtypes != 256) { 126 warnx("unexpected change to mbstat; check source"); 127 return; 128 } 129 130 totmbufs = 0; 131 for (mp = mbtypes; mp->mt_name; mp++) 132 totmbufs += mbstat.m_mtypes[mp->mt_type]; 133 printf("%u/%u mbufs in use:\n", totmbufs, mbstat.m_mbufs); 134 for (mp = mbtypes; mp->mt_name; mp++) 135 if (mbstat.m_mtypes[mp->mt_type]) { 136 seen[mp->mt_type] = YES; 137 printf("\t%u mbufs allocated to %s\n", 138 mbstat.m_mtypes[mp->mt_type], mp->mt_name); 139 } 140 seen[MT_FREE] = YES; 141 for (i = 0; i < nmbtypes; i++) 142 if (!seen[i] && mbstat.m_mtypes[i]) { 143 printf("\t%u mbufs allocated to <mbuf type %d>\n", 144 mbstat.m_mtypes[i], i); 145 } 146 printf("%lu/%lu/%lu mbuf clusters in use (current/peak/max)\n", 147 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters, nmbclusters); 148 totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * MCLBYTES; 149 totfree = mbstat.m_clfree * MCLBYTES + 150 MSIZE * (mbstat.m_mbufs - totmbufs); 151 printf("%u Kbytes allocated to network (%d%% in use)\n", 152 totmem / 1024, (unsigned) (totmem - totfree) * 100 / totmem); 153 printf("%lu requests for memory denied\n", mbstat.m_drops); 154 printf("%lu requests for memory delayed\n", mbstat.m_wait); 155 printf("%lu calls to protocol drain routines\n", mbstat.m_drain); 156}
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