/* * 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 #include "netstat.h" /* * Print mbuf statistics. */ void mbpr(void *kvmd, u_long mbaddr) { 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; int error, live; live = (kvmd == NULL); mtlp = memstat_mtl_alloc(); if (mtlp == NULL) { warn("memstat_mtl_alloc"); return; } /* * Use memstat_*_all() because some mbuf-related memory is in uma(9), * and some malloc(9). */ if (live) { if (memstat_sysctl_all(mtlp, 0) < 0) { warnx("memstat_sysctl_all: %s", memstat_strerror(memstat_mtl_geterror(mtlp))); goto out; } } else { if (memstat_kvm_all(mtlp, kvmd) < 0) { error = memstat_mtl_geterror(mtlp); if (error == MEMSTAT_ERROR_KVM) warnx("memstat_kvm_all: %s", kvm_geterr(kvmd)); else warnx("memstat_kvm_all: %s", memstat_strerror(error)); 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 if (live) { 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 if (live) { mlen = sizeof(mbstat); if (sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) { warn("kern.ipc.mbstat"); goto out; } } else { if (kread(mbaddr, (char *)&mbstat, sizeof mbstat)) goto out; } 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); }