diff options
Diffstat (limited to 'usr.bin/netstat/mbuf.c')
| -rw-r--r-- | usr.bin/netstat/mbuf.c | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/usr.bin/netstat/mbuf.c b/usr.bin/netstat/mbuf.c new file mode 100644 index 000000000000..9a43e0115223 --- /dev/null +++ b/usr.bin/netstat/mbuf.c @@ -0,0 +1,354 @@ +/*- + * SPDX-License-Identifier: BSD-4-Clause + * + * 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. + */ + +#include <sys/param.h> +#include <sys/mbuf.h> +#include <sys/protosw.h> +#include <sys/sf_buf.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/sysctl.h> + +#include <kvm.h> +#include <memstat.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <libxo/xo.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 mbuf_sleeps; + uintmax_t cluster_count, cluster_limit, cluster_free; + uintmax_t cluster_failures, cluster_size, cluster_sleeps; + uintmax_t packet_count, packet_bytes, packet_free, packet_failures; + uintmax_t packet_sleeps; + uintmax_t tag_bytes; + uintmax_t jumbop_count, jumbop_limit, jumbop_free; + uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size; + uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free; + uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size; + uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free; + uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size; + uintmax_t bytes_inuse, bytes_incache, bytes_total; + int nsfbufs, nsfbufspeak, nsfbufsused; + struct sfstat sfstat; + size_t mlen; + int error; + + mtlp = memstat_mtl_alloc(); + if (mtlp == NULL) { + xo_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) { + xo_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) + xo_warnx("memstat_kvm_all: %s", + kvm_geterr(kvmd)); + else + xo_warnx("memstat_kvm_all: %s", + memstat_strerror(error)); + goto out; + } + } + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); + if (mtp == NULL) { + xo_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_sleeps = memstat_get_sleeps(mtp); + mbuf_size = memstat_get_size(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME); + if (mtp == NULL) { + xo_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_sleeps = memstat_get_sleeps(mtp); + packet_failures = memstat_get_failures(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME); + if (mtp == NULL) { + xo_warnx("memstat_mtl_find: zone %s not found", + MBUF_CLUSTER_MEM_NAME); + goto out; + } + cluster_count = memstat_get_count(mtp); + cluster_limit = memstat_get_countlimit(mtp); + cluster_free = memstat_get_free(mtp); + cluster_failures = memstat_get_failures(mtp); + cluster_sleeps = memstat_get_sleeps(mtp); + cluster_size = memstat_get_size(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME); + if (mtp == NULL) { + xo_warnx("memstat_mtl_find: malloc type %s not found", + MBUF_TAG_MEM_NAME); + goto out; + } + tag_bytes = memstat_get_bytes(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME); + if (mtp == NULL) { + xo_warnx("memstat_mtl_find: zone %s not found", + MBUF_JUMBOP_MEM_NAME); + goto out; + } + jumbop_count = memstat_get_count(mtp); + jumbop_limit = memstat_get_countlimit(mtp); + jumbop_free = memstat_get_free(mtp); + jumbop_failures = memstat_get_failures(mtp); + jumbop_sleeps = memstat_get_sleeps(mtp); + jumbop_size = memstat_get_size(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME); + if (mtp == NULL) { + xo_warnx("memstat_mtl_find: zone %s not found", + MBUF_JUMBO9_MEM_NAME); + goto out; + } + jumbo9_count = memstat_get_count(mtp); + jumbo9_limit = memstat_get_countlimit(mtp); + jumbo9_free = memstat_get_free(mtp); + jumbo9_failures = memstat_get_failures(mtp); + jumbo9_sleeps = memstat_get_sleeps(mtp); + jumbo9_size = memstat_get_size(mtp); + + mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME); + if (mtp == NULL) { + xo_warnx("memstat_mtl_find: zone %s not found", + MBUF_JUMBO16_MEM_NAME); + goto out; + } + jumbo16_count = memstat_get_count(mtp); + jumbo16_limit = memstat_get_countlimit(mtp); + jumbo16_free = memstat_get_free(mtp); + jumbo16_failures = memstat_get_failures(mtp); + jumbo16_sleeps = memstat_get_sleeps(mtp); + jumbo16_size = memstat_get_size(mtp); + + xo_open_container("mbuf-statistics"); + + xo_emit("{:mbuf-current/%ju}/{:mbuf-cache/%ju}/{:mbuf-total/%ju} " + "{N:mbufs in use (current\\/cache\\/total)}\n", + mbuf_count + packet_count, mbuf_free + packet_free, + mbuf_count + packet_count + mbuf_free + packet_free); + + xo_emit("{:cluster-current/%ju}/{:cluster-cache/%ju}/" + "{:cluster-total/%ju}/{:cluster-max/%ju} " + "{N:mbuf clusters in use (current\\/cache\\/total\\/max)}\n", + cluster_count - packet_free, cluster_free + packet_free, + cluster_count + cluster_free, cluster_limit); + + xo_emit("{:packet-count/%ju}/{:packet-free/%ju} " + "{N:mbuf+clusters out of packet secondary zone in use " + "(current\\/cache)}\n", + packet_count, packet_free); + + xo_emit("{:jumbo-count/%ju}/{:jumbo-cache/%ju}/{:jumbo-total/%ju}/" + "{:jumbo-max/%ju} {:jumbo-page-size/%ju}{U:k} {N:(page size)} " + "{N:jumbo clusters in use (current\\/cache\\/total\\/max)}\n", + jumbop_count, jumbop_free, jumbop_count + jumbop_free, + jumbop_limit, jumbop_size / 1024); + + xo_emit("{:jumbo9-count/%ju}/{:jumbo9-cache/%ju}/" + "{:jumbo9-total/%ju}/{:jumbo9-max/%ju} " + "{N:9k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", + jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, + jumbo9_limit); + + xo_emit("{:jumbo16-count/%ju}/{:jumbo16-cache/%ju}/" + "{:jumbo16-total/%ju}/{:jumbo16-limit/%ju} " + "{N:16k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", + jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, + jumbo16_limit); + +#if 0 + xo_emit("{:tag-count/%ju} {N: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; + + xo_emit("{:bytes-in-use/%ju}{U:K}/{:bytes-in-cache/%ju}{U:K}/" + "{:bytes-total/%ju}{U:K} " + "{N:bytes allocated to network (current\\/cache\\/total)}\n", + bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024); + + xo_emit("{:mbuf-failures/%ju}/{:cluster-failures/%ju}/" + "{:packet-failures/%ju} {N:requests for mbufs denied " + "(mbufs\\/clusters\\/mbuf+clusters)}\n", + mbuf_failures, cluster_failures, packet_failures); + xo_emit("{:mbuf-sleeps/%ju}/{:cluster-sleeps/%ju}/{:packet-sleeps/%ju} " + "{N:requests for mbufs delayed " + "(mbufs\\/clusters\\/mbuf+clusters)}\n", + mbuf_sleeps, cluster_sleeps, packet_sleeps); + + xo_emit("{:jumbop-sleeps/%ju}/{:jumbo9-sleeps/%ju}/" + "{:jumbo16-sleeps/%ju} {N:/requests for jumbo clusters delayed " + "(%juk\\/9k\\/16k)}\n", + jumbop_sleeps, jumbo9_sleeps, jumbo16_sleeps, jumbop_size / 1024); + xo_emit("{:jumbop-failures/%ju}/{:jumbo9-failures/%ju}/" + "{:jumbo16-failures/%ju} {N:/requests for jumbo clusters denied " + "(%juk\\/9k\\/16k)}\n", + jumbop_failures, jumbo9_failures, jumbo16_failures, + jumbop_size / 1024); + + mlen = sizeof(nsfbufs); + if (live && + sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 && + sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, + NULL, 0) == 0 && + sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, + NULL, 0) == 0) + xo_emit("{:nsfbufs-current/%d}/{:nsfbufs-peak/%d}/" + "{:nsfbufs/%d} " + "{N:sfbufs in use (current\\/peak\\/max)}\n", + nsfbufsused, nsfbufspeak, nsfbufs); + + if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat), + kread_counters) != 0) + goto out; + + xo_emit("{:sendfile-syscalls/%ju} {N:sendfile syscalls}\n", + (uintmax_t)sfstat.sf_syscalls); + xo_emit("{:sendfile-no-io/%ju} " + "{N:sendfile syscalls completed without I\\/O request}\n", + (uintmax_t)sfstat.sf_noiocnt); + xo_emit("{:sendfile-io-count/%ju} " + "{N:requests for I\\/O initiated by sendfile}\n", + (uintmax_t)sfstat.sf_iocnt); + xo_emit("{:sendfile-pages-sent/%ju} " + "{N:pages read by sendfile as part of a request}\n", + (uintmax_t)sfstat.sf_pages_read); + xo_emit("{:sendfile-pages-valid/%ju} " + "{N:pages were valid at time of a sendfile request}\n", + (uintmax_t)sfstat.sf_pages_valid); + xo_emit("{:sendfile-pages-bogus/%ju} " + "{N:pages were valid and substituted to bogus page}\n", + (uintmax_t)sfstat.sf_pages_bogus); + xo_emit("{:sendfile-requested-readahead/%ju} " + "{N:pages were requested for read ahead by applications}\n", + (uintmax_t)sfstat.sf_rhpages_requested); + xo_emit("{:sendfile-readahead/%ju} " + "{N:pages were read ahead by sendfile}\n", + (uintmax_t)sfstat.sf_rhpages_read); + xo_emit("{:sendfile-busy-encounters/%ju} " + "{N:times sendfile encountered an already busy page}\n", + (uintmax_t)sfstat.sf_busy); + xo_emit("{:sfbufs-alloc-failed/%ju} {N:requests for sfbufs denied}\n", + (uintmax_t)sfstat.sf_allocfail); + xo_emit("{:sfbufs-alloc-wait/%ju} {N:requests for sfbufs delayed}\n", + (uintmax_t)sfstat.sf_allocwait); +out: + xo_close_container("mbuf-statistics"); + memstat_mtl_free(mtlp); +} |