119 lines
4.2 KiB
C
119 lines
4.2 KiB
C
|
/*
|
||
|
|
* 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);
|
||
|
|
}
|