2fde9bd6de
the kernel malloc, netstat was never updated to reflect the fact that there are once again allocated-but-free mbufs, just as there are clusters, and so the information presented about how much memory was allocated to the network was bogus. Fixed.
123 lines
4.3 KiB
C
123 lines
4.3 KiB
C
/*
|
|
* Copyright (c) 1983, 1988, 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 sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/mbuf.h>
|
|
|
|
#include <stdio.h>
|
|
#include "netstat.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.
|
|
*/
|
|
void
|
|
mbpr(mbaddr)
|
|
u_long mbaddr;
|
|
{
|
|
register int totmem, totfree, totmbufs;
|
|
register int i;
|
|
register struct mbtypes *mp;
|
|
|
|
if (nmbtypes != 256) {
|
|
warnx("unexpected change to mbstat; check source");
|
|
return;
|
|
}
|
|
if (mbaddr == 0) {
|
|
warnx("mbstat: symbol not in namelist");
|
|
return;
|
|
}
|
|
if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
|
|
return;
|
|
totmbufs = 0;
|
|
for (mp = mbtypes; mp->mt_name; mp++)
|
|
totmbufs += mbstat.m_mtypes[mp->mt_type];
|
|
printf("%u/%u mbufs in use:\n", totmbufs, mbstat.m_mbufs);
|
|
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("%lu/%lu mbuf clusters in use\n",
|
|
mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
|
|
totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
|
|
totfree = mbstat.m_clfree * MCLBYTES +
|
|
MSIZE * (mbstat.m_mbufs - totmbufs);
|
|
printf("%u Kbytes allocated to network (%d%% in use)\n",
|
|
totmem / 1024, (totmem - totfree) * 100 / totmem);
|
|
printf("%lu requests for memory denied\n", mbstat.m_drops);
|
|
printf("%lu requests for memory delayed\n", mbstat.m_wait);
|
|
printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
|
|
}
|