diff options
Diffstat (limited to 'usr.bin/netstat/mbuf.c')
| -rw-r--r-- | usr.bin/netstat/mbuf.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/usr.bin/netstat/mbuf.c b/usr.bin/netstat/mbuf.c new file mode 100644 index 0000000..7f65701 --- /dev/null +++ b/usr.bin/netstat/mbuf.c @@ -0,0 +1,313 @@ +/*- + * 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/mbuf.h> +#include <sys/protosw.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/sysctl.h> + +#include <err.h> +#include <kvm.h> +#include <memstat.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "netstat.h" + +/* + * Print mbuf statistics. + */ +void +mbpr(void *kvmd, u_long mbaddr) +{ + struct memory_type_list *mtlp; + struct memory_type *mtp; + uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; + uintmax_t cluster_count, cluster_bytes, cluster_limit, cluster_free; + uintmax_t cluster_failures, cluster_size; + uintmax_t packet_count, packet_bytes, packet_free, packet_failures; + uintmax_t tag_count, tag_bytes; + uintmax_t jumbop_count, jumbop_bytes, jumbop_limit, jumbop_free; + uintmax_t jumbop_failures, jumbop_size; + uintmax_t jumbo9_count, jumbo9_bytes, jumbo9_limit, jumbo9_free; + uintmax_t jumbo9_failures, jumbo9_size; + uintmax_t jumbo16_count, jumbo16_bytes, jumbo16_limit, jumbo16_free; + uintmax_t jumbo16_failures, jumbo16_size; + uintmax_t bytes_inuse, bytes_incache, bytes_total; + int nsfbufs, nsfbufspeak, nsfbufsused; + struct mbstat mbstat; + size_t mlen; + int error; + + 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); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME); + if (mtp == NULL) { + warnx("memstat_mtl_find: zone %s not found", + MBUF_JUMBOP_MEM_NAME); + goto out; + } + jumbop_count = memstat_get_count(mtp); + jumbop_bytes = memstat_get_bytes(mtp); + jumbop_limit = memstat_get_countlimit(mtp); + jumbop_free = memstat_get_free(mtp); + jumbop_failures = memstat_get_failures(mtp); + jumbop_size = memstat_get_size(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME); + if (mtp == NULL) { + warnx("memstat_mtl_find: zone %s not found", + MBUF_JUMBO9_MEM_NAME); + goto out; + } + jumbo9_count = memstat_get_count(mtp); + jumbo9_bytes = memstat_get_bytes(mtp); + jumbo9_limit = memstat_get_countlimit(mtp); + jumbo9_free = memstat_get_free(mtp); + jumbo9_failures = memstat_get_failures(mtp); + jumbo9_size = memstat_get_size(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME); + if (mtp == NULL) { + warnx("memstat_mtl_find: zone %s not found", + MBUF_JUMBO16_MEM_NAME); + goto out; + } + jumbo16_count = memstat_get_count(mtp); + jumbo16_bytes = memstat_get_bytes(mtp); + jumbo16_limit = memstat_get_countlimit(mtp); + jumbo16_free = memstat_get_free(mtp); + jumbo16_failures = memstat_get_failures(mtp); + jumbo16_size = memstat_get_size(mtp); + + printf("%ju/%ju/%ju mbufs in use (current/cache/total)\n", + mbuf_count + packet_count, mbuf_free + packet_free, + mbuf_count + packet_count + mbuf_free + packet_free); + + printf("%ju/%ju/%ju/%ju mbuf clusters in use " + "(current/cache/total/max)\n", + cluster_count - packet_free, cluster_free + packet_free, + cluster_count + cluster_free, cluster_limit); + + printf("%ju/%ju mbuf+clusters out of packet secondary zone in use " + "(current/cache)\n", + packet_count, packet_free); + + printf("%ju/%ju/%ju/%ju %juk (page size) jumbo clusters in use " + "(current/cache/total/max)\n", + jumbop_count, jumbop_free, jumbop_count + jumbop_free, + jumbop_limit, jumbop_size / 1024); + + printf("%ju/%ju/%ju/%ju 9k jumbo clusters in use " + "(current/cache/total/max)\n", + jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, + jumbo9_limit); + + printf("%ju/%ju/%ju/%ju 16k jumbo clusters in use " + "(current/cache/total/max)\n", + jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, + jumbo16_limit); + +#if 0 + printf("%ju mbuf tags in use\n", tag_count); +#endif + + /*- + * 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 + + (jumbop_count * jumbop_size) + /* jumbo clusters */ + (jumbo9_count * jumbo9_size) + + (jumbo16_count * jumbo16_size); + + /* + * 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 */ + (jumbop_free * jumbop_size) + /* jumbo clusters */ + (jumbo9_free * jumbo9_size) + + (jumbo16_free * jumbo16_size); + + /* + * 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("%juK/%juK/%juK bytes allocated to network " + "(current/cache/total)\n", bytes_inuse / 1024, + bytes_incache / 1024, bytes_total / 1024); + + printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/" + "mbuf+clusters)\n", mbuf_failures, cluster_failures, + packet_failures); + + printf("%ju/%ju/%ju requests for jumbo clusters denied " + "(%juk/9k/16k)\n", jumbop_failures, jumbo9_failures, + jumbo16_failures, jumbop_size / 1024); + + 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); + 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) != 0) + 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); +} |
