home *** CD-ROM | disk | FTP | other *** search
- /*
- * Copyright (c) 1983, 1988 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 sccsid[] = "@(#)mbuf.c 5.10 (Berkeley) 1/30/91";
- #endif /* not lint */
-
- #include <stdio.h>
- #include <sys/param.h>
- #include <sys/mbuf.h>
- #define YES 1
- typedef int bool;
-
- struct mbstat mbstat;
-
- static struct mbtypes {
- int mt_type;
- char *mt_name;
- } mbtypes[] = {
- { MT_DATA, "data" },
- { MT_OOBDATA, "oob data" },
- { MT_CONTROL, "ancillary data" },
- { MT_HEADER, "packet headers" },
- { MT_SOCKET, "socket structures" }, /* XXX */
- { MT_PCB, "protocol control blocks" }, /* XXX */
- { MT_RTABLE, "routing table entries" }, /* XXX */
- { MT_HTABLE, "IMP host table entries" }, /* XXX */
- { MT_ATABLE, "address resolution tables" },
- { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
- { MT_SONAME, "socket names and addresses" },
- { MT_SOOPTS, "socket options" },
- { MT_RIGHTS, "access rights" },
- { MT_IFADDR, "interface addresses" }, /* XXX */
- { 0, 0 }
- };
-
- int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
- bool seen[256]; /* "have we seen this type yet?" */
-
- /*
- * Print mbuf statistics.
- */
- mbpr(mbaddr)
- off_t mbaddr;
- {
- register int totmem, totfree, totmbufs;
- register int i;
- register struct mbtypes *mp;
-
- if (nmbtypes != 256) {
- fprintf(stderr, "unexpected change to mbstat; check source\n");
- return;
- }
- if (mbaddr == 0) {
- printf("mbstat: symbol not in namelist\n");
- return;
- }
- if (kvm_read(mbaddr, (char *)&mbstat, sizeof (mbstat))
- != sizeof (mbstat)) {
- printf("mbstat: bad read\n");
- return;
- }
- totmbufs = 0;
- for (mp = mbtypes; mp->mt_name; mp++)
- totmbufs += mbstat.m_mtypes[mp->mt_type];
- printf("%u mbufs in use:\n", totmbufs);
- for (mp = mbtypes; mp->mt_name; mp++)
- if (mbstat.m_mtypes[mp->mt_type]) {
- seen[mp->mt_type] = YES;
- printf("\t%u mbufs allocated to %s\n",
- mbstat.m_mtypes[mp->mt_type], mp->mt_name);
- }
- seen[MT_FREE] = YES;
- for (i = 0; i < nmbtypes; i++)
- if (!seen[i] && mbstat.m_mtypes[i]) {
- printf("\t%u mbufs allocated to <mbuf type %d>\n",
- mbstat.m_mtypes[i], i);
- }
- printf("%u/%u mapped pages in use\n",
- mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
- totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
- totfree = mbstat.m_clfree * MCLBYTES;
- printf("%u Kbytes allocated to network (%d%% in use)\n",
- totmem / 1024, (totmem - totfree) * 100 / totmem);
- printf("%u requests for memory denied\n", mbstat.m_drops);
- printf("%u requests for memory delayed\n", mbstat.m_wait);
- printf("%u calls to protocol drain routines\n", mbstat.m_drain);
- }
-