/* * Copyright (c) 1983, 1988, 1993 * The Regents of the University of California. * Copyright (c) 2005 Robert N. M. Watson * 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. */ #if 0 #ifndef lint static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; #endif /* not lint */ #endif #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include "netstat.h" #define YES 1 typedef int bool; static struct mbtypenames { short mt_type; const char *mt_name; } mbtypenames[] = { { MT_DATA, "data" }, { MT_OOBDATA, "oob data" }, { MT_CONTROL, "ancillary data" }, { MT_HEADER, "packet headers" }, #ifdef MT_SOCKET { MT_SOCKET, "socket structures" }, /* XXX */ #endif #ifdef MT_PCB { MT_PCB, "protocol control blocks" }, /* XXX */ #endif #ifdef MT_RTABLE { MT_RTABLE, "routing table entries" }, /* XXX */ #endif #ifdef MT_HTABLE { MT_HTABLE, "IMP host table entries" }, /* XXX */ #endif #ifdef MT_ATABLE { MT_ATABLE, "address resolution tables" }, #endif { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ { MT_SONAME, "socket names and addresses" }, #ifdef MT_SOOPTS { MT_SOOPTS, "socket options" }, #endif #ifdef MT_RIGHTS { MT_RIGHTS, "access rights" }, #endif #ifdef MT_IFADDR { MT_IFADDR, "interface addresses" }, /* XXX */ #endif { 0, 0 } }; /* * Print mbuf statistics extracted from kmem. */ void mbpr_kmem(u_long mbaddr, u_long nmbcaddr, u_long nmbufaddr, u_long mbhiaddr, u_long clhiaddr, u_long mbloaddr, u_long clloaddr, u_long pgsaddr, u_long mbpaddr) { int i, nmbclusters; short nmbtypes; size_t mlen; long *mbtypes = NULL; struct mbstat *mbstat = NULL; struct mbtypenames *mp; bool *seen = NULL; mlen = sizeof *mbstat; if ((mbstat = malloc(mlen)) == NULL) { warn("malloc: cannot allocate memory for mbstat"); goto err; } if (kread(mbaddr, (char *)mbstat, sizeof mbstat)) goto err; if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int))) goto err; if (mbstat->m_mbufs < 0) mbstat->m_mbufs = 0; /* XXX */ if (mbstat->m_mclusts < 0) mbstat->m_mclusts = 0; /* XXX */ nmbtypes = mbstat->m_numtypes; if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) { warn("calloc: cannot allocate memory for mbtypes seen flag"); goto err; } if ((mbtypes = calloc(nmbtypes, sizeof(long *))) == NULL) { warn("calloc: cannot allocate memory for mbtypes"); goto err; } #undef MSIZE #define MSIZE (mbstat->m_msize) #undef MCLBYTES #define MCLBYTES (mbstat->m_mclbytes) printf("%lu mbufs in use\n", mbstat->m_mbufs); for (mp = mbtypenames; mp->mt_name; mp++) { if (mbtypes[mp->mt_type]) { seen[mp->mt_type] = YES; printf("\t %lu mbufs allocated to %s\n", mbtypes[mp->mt_type], mp->mt_name); } } for (i = 1; i < nmbtypes; i++) { if (!seen[i] && mbtypes[i]) printf("\t %lu mbufs allocated to \n", mbtypes[i], i); } printf("%lu/%d mbuf clusters in use (current/max)\n", mbstat->m_mclusts, nmbclusters); printf("%lu KBytes allocated to network\n", (mbstat->m_mbufs * MSIZE + mbstat->m_mclusts * MCLBYTES) / 1024); printf("%lu requests for sfbufs denied\n", mbstat->sf_allocfail); printf("%lu requests for sfbufs delayed\n", mbstat->sf_allocwait); printf("%lu requests for I/O initiated by sendfile\n", mbstat->sf_iocnt); printf("%lu calls to protocol drain routines\n", mbstat->m_drain); err: if (mbtypes != NULL) free(mbtypes); if (seen != NULL) free(seen); if (mbstat != NULL) free(mbstat); } /* * If running on a live kernel, directly query the zone allocator for stats * from the four mbuf-related zones/types. */ static void mbpr_sysctl(void) { struct memory_type_list *mtlp; struct memory_type *mtp; u_int64_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; u_int64_t cluster_count, cluster_bytes, cluster_limit, cluster_free; u_int64_t cluster_failures, cluster_size; u_int64_t packet_count, packet_bytes, packet_free, packet_failures; u_int64_t tag_count, tag_bytes; u_int64_t bytes_inuse, bytes_incache, bytes_total; int nsfbufs, nsfbufspeak, nsfbufsused; struct mbstat mbstat; size_t mlen; mtlp = memstat_mtl_alloc(); if (mtlp == NULL) { warn("memstat_mtl_alloc"); return; } /* * Use memstat_sysctl_all() because some mbuf-related memory is in * uma(9), and some malloc(9). */ if (memstat_sysctl_all(mtlp, 0) < 0) { warnx("memstat_sysctl_all: %s", memstat_strerror(memstat_mtl_geterror(mtlp))); goto out; } mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); if (mtp == NULL) { warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME); goto out; } mbuf_count = memstat_get_count(mtp); mbuf_bytes = memstat_get_bytes(mtp); mbuf_free = memstat_get_free(mtp); mbuf_failures = memstat_get_failures(mtp); mbuf_size = memstat_get_size(mtp); mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME); if (mtp == NULL) { warnx("memstat_mtl_find: zone %s not found", MBUF_PACKET_MEM_NAME); goto out; } packet_count = memstat_get_count(mtp); packet_bytes = memstat_get_bytes(mtp); packet_free = memstat_get_free(mtp); packet_failures = memstat_get_failures(mtp); mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME); if (mtp == NULL) { warnx("memstat_mtl_find: zone %s not found", MBUF_CLUSTER_MEM_NAME); goto out; } cluster_count = memstat_get_count(mtp); cluster_bytes = memstat_get_bytes(mtp); cluster_limit = memstat_get_countlimit(mtp); cluster_free = memstat_get_free(mtp); cluster_failures = memstat_get_failures(mtp); cluster_size = memstat_get_size(mtp); mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME); if (mtp == NULL) { warnx("memstat_mtl_find: malloc type %s not found", MBUF_TAG_MEM_NAME); goto out; } tag_count = memstat_get_count(mtp); tag_bytes = memstat_get_bytes(mtp); printf("%llu/%llu/%llu mbufs in use (current/cache/total)\n", mbuf_count + packet_count, mbuf_free + packet_free, mbuf_count + packet_count + mbuf_free + packet_free); printf("%llu/%llu/%llu/%llu mbuf clusters in use " "(current/cache/total/max)\n", cluster_count - packet_free, cluster_free + packet_free, cluster_count + cluster_free, cluster_limit); #if 0 printf("%llu mbuf tags in use\n", tag_count); #endif mlen = sizeof(nsfbufs); if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) && !sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, NULL, 0) && !sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, NULL, 0)) { printf("%d/%d/%d sfbufs in use (current/peak/max)\n", nsfbufsused, nsfbufspeak, nsfbufs); } /*- * Calculate in-use bytes as: * - straight mbuf memory * - mbuf memory in packets * - the clusters attached to packets * - and the rest of the non-packet-attached clusters. * - m_tag memory * This avoids counting the clusters attached to packets in the cache. * This currently excludes sf_buf space. */ bytes_inuse = mbuf_bytes + /* straight mbuf memory */ packet_bytes + /* mbufs in packets */ (packet_count * cluster_size) + /* clusters in packets */ /* other clusters */ ((cluster_count - packet_count - packet_free) * cluster_size) + tag_bytes; /* * Calculate in-cache bytes as: * - cached straught mbufs * - cached packet mbufs * - cached packet clusters * - cached straight clusters * This currently excludes sf_buf space. */ bytes_incache = (mbuf_free * mbuf_size) + /* straight free mbufs */ (packet_free * mbuf_size) + /* mbufs in free packets */ (packet_free * cluster_size) + /* clusters in free packets */ (cluster_free * cluster_size); /* free clusters */ /* * Total is bytes in use + bytes in cache. This doesn't take into * account various other misc data structures, overhead, etc, but * gives the user something useful despite that. */ bytes_total = bytes_inuse + bytes_incache; printf("%lluK/%lluK/%lluK bytes allocated to network " "(current/cache/total)\n", bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024); #if 0 printf("%llu/%llu/%llu requests for mbufs denied (mbufs/clusters/" "mbuf+clusters)\n", mbuf_failures, cluster_failures, packet_failures); #endif mlen = sizeof(mbstat); if (!sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) { printf("%lu requests for sfbufs denied\n", mbstat.sf_allocfail); printf("%lu requests for sfbufs delayed\n", mbstat.sf_allocwait); printf("%lu requests for I/O initiated by sendfile\n", mbstat.sf_iocnt); printf("%lu calls to protocol drain routines\n", mbstat.m_drain); } out: memstat_mtl_free(mtlp); } /* * Print mbuf statistics. */ void mbpr(u_long mbaddr, u_long mbtaddr __unused, u_long nmbcaddr, u_long nmbufaddr, u_long mbhiaddr, u_long clhiaddr, u_long mbloaddr, u_long clloaddr, u_long cpusaddr __unused, u_long pgsaddr, u_long mbpaddr) { if (mbaddr != 0) mbpr_kmem(mbaddr, nmbcaddr, nmbufaddr, mbhiaddr, clhiaddr, mbloaddr, clloaddr, pgsaddr, mbpaddr); else mbpr_sysctl(); }