projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| bad4305f | 1 | #ifndef lint |
| c02627d4 | 2 | static char sccsid[] = "@(#)mbuf.c 4.5 82/12/18"; |
| bad4305f SL |
3 | #endif |
| 4 | ||
| 24bf5f10 | 5 | #include <sys/param.h> |
| bad4305f SL |
6 | #include <sys/mbuf.h> |
| 7 | ||
| 8 | struct mbstat mbstat; | |
| 9 | extern int kmem; | |
| 10 | ||
| 02c6746b SL |
11 | static struct mbtypes { |
| 12 | int mt_type; | |
| 13 | char *mt_name; | |
| 14 | } mbtypes[] = { | |
| 15 | { MT_DATA, "data" }, | |
| 16 | { MT_HEADER, "packet headers" }, | |
| 17 | { MT_SOCKET, "socket structures" }, | |
| 18 | { MT_PCB, "protocol control blocks" }, | |
| 19 | { MT_RTABLE, "routing table entries" }, | |
| 20 | { MT_HTABLE, "IMP host table entries" }, | |
| 21 | #ifdef notdef | |
| 22 | { MT_ATABLE, "address resolution tables" }, | |
| 23 | #endif | |
| 24 | { MT_FTABLE, "fragment reassembly queue headers" }, | |
| 25 | { MT_SONAME, "socket names and addresses" }, | |
| 26 | { MT_ZOMBIE, "zombie process information" }, | |
| 27 | { MT_SOOPTS, "socket options" }, | |
| 28 | { 0, 0 } | |
| 29 | }; | |
| 30 | ||
| bad4305f SL |
31 | /* |
| 32 | * Print mbuf statistics. | |
| 33 | */ | |
| 34 | mbpr(mbaddr) | |
| 35 | off_t mbaddr; | |
| 36 | { | |
| 02c6746b SL |
37 | register int totmem, totfree, totmbufs; |
| 38 | register struct mbtypes *mp; | |
| 24bf5f10 | 39 | |
| bad4305f SL |
40 | if (mbaddr == 0) { |
| 41 | printf("mbstat: symbol not in namelist\n"); | |
| 42 | return; | |
| 43 | } | |
| bad4305f | 44 | klseek(kmem, mbaddr, 0); |
| 24bf5f10 SL |
45 | if (read(kmem, &mbstat, sizeof (mbstat)) != sizeof (mbstat)) { |
| 46 | printf("mbstat: bad read\n"); | |
| 47 | return; | |
| 48 | } | |
| 02c6746b SL |
49 | printf("%d/%d mbufs in use:\n", |
| 50 | mbstat.m_mbufs - mbstat.m_mbfree, mbstat.m_mbufs); | |
| 51 | totmbufs = 0; | |
| 52 | for (mp = mbtypes; mp->mt_name; mp++) | |
| 53 | if (mbstat.m_mtypes[mp->mt_type]) { | |
| 54 | printf("\t%d mbufs allocated to %s\n", | |
| 55 | mbstat.m_mtypes[mp->mt_type], mp->mt_name); | |
| 56 | totmbufs += mbstat.m_mtypes[mp->mt_type]; | |
| 57 | } | |
| 58 | if (totmbufs != mbstat.m_mbufs - mbstat.m_mbfree) | |
| 59 | printf("*** %d mbufs missing ***\n", | |
| 60 | (mbstat.m_mbufs - mbstat.m_mbfree) - totmbufs); | |
| 84f2241b | 61 | printf("%d/%d mapped pages in use\n", |
| 24bf5f10 | 62 | mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters); |
| 24bf5f10 SL |
63 | totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * CLBYTES; |
| 64 | totfree = mbstat.m_mbfree * MSIZE + mbstat.m_clusters * CLBYTES; | |
| 02c6746b | 65 | printf("%d Kbytes allocated to network (%d%% in use)\n", |
| c1567c4d | 66 | totmem / 1024, (totmem - totfree) * 100 / totmem); |
| 02c6746b | 67 | printf("%d requests for memory denied\n", mbstat.m_drops); |
| bad4305f | 68 | } |