1 /* 2 * Copyright (c) 1983, 1988 Regents of the University of California. 3 * 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 static char sccsid[] = "@(#)mbuf.c 5.10 (Berkeley) 1/30/91"; 36 #endif /* not lint */ 37 38 #include <stdio.h> 39 #include <sys/param.h> 40 #include <sys/mbuf.h> 41 #define YES 1 42 typedef int bool; 43 44 struct mbstat mbstat; 45 46 static struct mbtypes { 47 int mt_type; 48 char *mt_name; 49 } mbtypes[] = { 50 { MT_DATA, "data" }, 51 { MT_OOBDATA, "oob data" }, 52 { MT_CONTROL, "ancillary data" }, 53 { MT_HEADER, "packet headers" }, 54 { MT_SOCKET, "socket structures" }, /* XXX */ 55 { MT_PCB, "protocol control blocks" }, /* XXX */ 56 { MT_RTABLE, "routing table entries" }, /* XXX */ 57 { MT_HTABLE, "IMP host table entries" }, /* XXX */ 58 { MT_ATABLE, "address resolution tables" }, 59 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 60 { MT_SONAME, "socket names and addresses" }, 61 { MT_SOOPTS, "socket options" }, 62 { MT_RIGHTS, "access rights" }, 63 { MT_IFADDR, "interface addresses" }, /* XXX */ 64 { 0, 0 } 65 }; 66 67 int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short); 68 bool seen[256]; /* "have we seen this type yet?" */ 69 70 /* 71 * Print mbuf statistics. 72 */ 73 mbpr(mbaddr) 74 off_t mbaddr; 75 { 76 register int totmem, totfree, totmbufs; 77 register int i; 78 register struct mbtypes *mp; 79 80 if (nmbtypes != 256) { 81 fprintf(stderr, "unexpected change to mbstat; check source\n"); 82 return; 83 } 84 if (mbaddr == 0) { 85 printf("mbstat: symbol not in namelist\n"); 86 return; 87 } 88 if (kvm_read(mbaddr, (char *)&mbstat, sizeof (mbstat)) 89 != sizeof (mbstat)) { 90 printf("mbstat: bad read\n"); 91 return; 92 } 93 totmbufs = 0; 94 for (mp = mbtypes; mp->mt_name; mp++) 95 totmbufs += mbstat.m_mtypes[mp->mt_type]; 96 printf("%u mbufs in use:\n", totmbufs); 97 for (mp = mbtypes; mp->mt_name; mp++) 98 if (mbstat.m_mtypes[mp->mt_type]) { 99 seen[mp->mt_type] = YES; 100 printf("\t%u mbufs allocated to %s\n", 101 mbstat.m_mtypes[mp->mt_type], mp->mt_name); 102 } 103 seen[MT_FREE] = YES; 104 for (i = 0; i < nmbtypes; i++) 105 if (!seen[i] && mbstat.m_mtypes[i]) { 106 printf("\t%u mbufs allocated to <mbuf type %d>\n", 107 mbstat.m_mtypes[i], i); 108 } 109 printf("%u/%u mapped pages in use\n", 110 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters); 111 totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES; 112 totfree = mbstat.m_clfree * MCLBYTES; 113 printf("%u Kbytes allocated to network (%d%% in use)\n", 114 totmem / 1024, (totmem - totfree) * 100 / totmem); 115 printf("%u requests for memory denied\n", mbstat.m_drops); 116 printf("%u requests for memory delayed\n", mbstat.m_wait); 117 printf("%u calls to protocol drain routines\n", mbstat.m_drain); 118 } 119