* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
static char sccsid
[] = "@(#)mbuf.c 5.3 (Berkeley) %G%";
{ MT_HEADER
, "packet headers" },
{ MT_SOCKET
, "socket structures" },
{ MT_PCB
, "protocol control blocks" },
{ MT_RTABLE
, "routing table entries" },
{ MT_HTABLE
, "IMP host table entries" },
{ MT_ATABLE
, "address resolution tables" },
{ MT_FTABLE
, "fragment reassembly queue headers" },
{ MT_SONAME
, "socket names and addresses" },
{ MT_ZOMBIE
, "zombie process information" },
{ MT_SOOPTS
, "socket options" },
{ MT_RIGHTS
, "access rights" },
{ MT_IFADDR
, "interface addresses" },
int nmbtypes
= sizeof(mbstat
.m_mtypes
) / sizeof(short);
bool seen
[256]; /* "have we seen this type yet?" */
register int totmem
, totfree
, totmbufs
;
register struct mbtypes
*mp
;
fprintf(stderr
, "unexpected change to mbstat; check source\n");
printf("mbstat: symbol not in namelist\n");
if (read(kmem
, (char *)&mbstat
, sizeof (mbstat
)) != sizeof (mbstat
)) {
printf("mbstat: bad read\n");
printf("%u/%u mbufs in use:\n",
mbstat
.m_mbufs
- mbstat
.m_mtypes
[MT_FREE
], mbstat
.m_mbufs
);
for (mp
= mbtypes
; mp
->mt_name
; mp
++)
if (mbstat
.m_mtypes
[mp
->mt_type
]) {
printf("\t%u mbufs allocated to %s\n",
mbstat
.m_mtypes
[mp
->mt_type
], mp
->mt_name
);
totmbufs
+= mbstat
.m_mtypes
[mp
->mt_type
];
for (i
= 0; i
< nmbtypes
; i
++)
if (!seen
[i
] && mbstat
.m_mtypes
[i
]) {
printf("\t%u mbufs allocated to <mbuf type %d>\n",
totmbufs
+= mbstat
.m_mtypes
[i
];
if (totmbufs
!= mbstat
.m_mbufs
- mbstat
.m_mtypes
[MT_FREE
])
printf("*** %u mbufs missing ***\n",
(mbstat
.m_mbufs
- mbstat
.m_mtypes
[MT_FREE
]) - totmbufs
);
printf("%u/%u mapped pages in use\n",
mbstat
.m_clusters
- mbstat
.m_clfree
, mbstat
.m_clusters
);
printf("%u interface pages allocated\n", mbstat
.m_space
);
totmem
= mbstat
.m_mbufs
* MSIZE
+ mbstat
.m_clusters
* CLBYTES
+
mbstat
.m_space
* CLBYTES
;
totfree
= mbstat
.m_mtypes
[MT_FREE
]*MSIZE
+ mbstat
.m_clfree
* CLBYTES
;
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
);