370 lines
13 KiB
C
370 lines
13 KiB
C
/*-
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California.
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* Copyright (c) 2005 Robert N. M. Watson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#endif
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#ifdef FSTACK
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#include <stdint.h>
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/sf_buf.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#ifndef FSTACK
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#include <kvm.h>
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#endif
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#include <memstat.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <libxo/xo.h>
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#include "netstat.h"
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/*
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* Print mbuf statistics.
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*/
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void
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mbpr(void *kvmd, u_long mbaddr)
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{
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struct memory_type_list *mtlp;
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struct memory_type *mtp;
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uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size;
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uintmax_t mbuf_sleeps;
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uintmax_t cluster_count, cluster_limit, cluster_free;
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uintmax_t cluster_failures, cluster_size, cluster_sleeps;
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uintmax_t packet_count, packet_bytes, packet_free, packet_failures;
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uintmax_t packet_sleeps;
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uintmax_t tag_bytes;
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uintmax_t jumbop_count, jumbop_limit, jumbop_free;
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uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size;
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uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free;
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uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size;
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uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free;
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uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size;
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uintmax_t bytes_inuse, bytes_incache, bytes_total;
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int nsfbufs, nsfbufspeak, nsfbufsused;
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struct sfstat sfstat;
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size_t mlen;
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#ifndef FSTACK
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int error;
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#endif
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mtlp = memstat_mtl_alloc();
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if (mtlp == NULL) {
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xo_warn("memstat_mtl_alloc");
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return;
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}
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/*
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* Use memstat_*_all() because some mbuf-related memory is in uma(9),
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* and some malloc(9).
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*/
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if (live) {
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if (memstat_sysctl_all(mtlp, 0) < 0) {
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xo_warnx("memstat_sysctl_all: %s",
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memstat_strerror(memstat_mtl_geterror(mtlp)));
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goto out;
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}
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} else {
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#ifndef FSTACK
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if (memstat_kvm_all(mtlp, kvmd) < 0) {
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error = memstat_mtl_geterror(mtlp);
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if (error == MEMSTAT_ERROR_KVM)
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xo_warnx("memstat_kvm_all: %s",
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kvm_geterr(kvmd));
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else
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xo_warnx("memstat_kvm_all: %s",
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memstat_strerror(error));
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goto out;
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}
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#endif
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}
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
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goto out;
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}
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mbuf_count = memstat_get_count(mtp);
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mbuf_bytes = memstat_get_bytes(mtp);
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mbuf_free = memstat_get_free(mtp);
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mbuf_failures = memstat_get_failures(mtp);
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mbuf_sleeps = memstat_get_sleeps(mtp);
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mbuf_size = memstat_get_size(mtp);
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: zone %s not found",
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MBUF_PACKET_MEM_NAME);
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goto out;
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}
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packet_count = memstat_get_count(mtp);
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packet_bytes = memstat_get_bytes(mtp);
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packet_free = memstat_get_free(mtp);
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packet_sleeps = memstat_get_sleeps(mtp);
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packet_failures = memstat_get_failures(mtp);
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: zone %s not found",
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MBUF_CLUSTER_MEM_NAME);
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goto out;
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}
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cluster_count = memstat_get_count(mtp);
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cluster_limit = memstat_get_countlimit(mtp);
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cluster_free = memstat_get_free(mtp);
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cluster_failures = memstat_get_failures(mtp);
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cluster_sleeps = memstat_get_sleeps(mtp);
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cluster_size = memstat_get_size(mtp);
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: malloc type %s not found",
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MBUF_TAG_MEM_NAME);
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goto out;
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}
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tag_bytes = memstat_get_bytes(mtp);
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: zone %s not found",
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MBUF_JUMBOP_MEM_NAME);
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goto out;
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}
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jumbop_count = memstat_get_count(mtp);
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jumbop_limit = memstat_get_countlimit(mtp);
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jumbop_free = memstat_get_free(mtp);
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jumbop_failures = memstat_get_failures(mtp);
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jumbop_sleeps = memstat_get_sleeps(mtp);
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jumbop_size = memstat_get_size(mtp);
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: zone %s not found",
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MBUF_JUMBO9_MEM_NAME);
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goto out;
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}
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jumbo9_count = memstat_get_count(mtp);
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jumbo9_limit = memstat_get_countlimit(mtp);
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jumbo9_free = memstat_get_free(mtp);
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jumbo9_failures = memstat_get_failures(mtp);
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jumbo9_sleeps = memstat_get_sleeps(mtp);
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jumbo9_size = memstat_get_size(mtp);
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mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
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if (mtp == NULL) {
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xo_warnx("memstat_mtl_find: zone %s not found",
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MBUF_JUMBO16_MEM_NAME);
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goto out;
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}
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jumbo16_count = memstat_get_count(mtp);
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jumbo16_limit = memstat_get_countlimit(mtp);
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jumbo16_free = memstat_get_free(mtp);
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jumbo16_failures = memstat_get_failures(mtp);
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jumbo16_sleeps = memstat_get_sleeps(mtp);
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jumbo16_size = memstat_get_size(mtp);
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xo_open_container("mbuf-statistics");
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xo_emit("{:mbuf-current/%ju}/{:mbuf-cache/%ju}/{:mbuf-total/%ju} "
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"{N:mbufs in use (current\\/cache\\/total)}\n",
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mbuf_count + packet_count, mbuf_free + packet_free,
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mbuf_count + packet_count + mbuf_free + packet_free);
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xo_emit("{:cluster-current/%ju}/{:cluster-cache/%ju}/"
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"{:cluster-total/%ju}/{:cluster-max/%ju} "
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"{N:mbuf clusters in use (current\\/cache\\/total\\/max)}\n",
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cluster_count - packet_free, cluster_free + packet_free,
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cluster_count + cluster_free, cluster_limit);
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xo_emit("{:packet-count/%ju}/{:packet-free/%ju} "
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"{N:mbuf+clusters out of packet secondary zone in use "
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"(current\\/cache)}\n",
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packet_count, packet_free);
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xo_emit("{:jumbo-count/%ju}/{:jumbo-cache/%ju}/{:jumbo-total/%ju}/"
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"{:jumbo-max/%ju} {:jumbo-page-size/%ju}{U:k} {N:(page size)} "
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"{N:jumbo clusters in use (current\\/cache\\/total\\/max)}\n",
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jumbop_count, jumbop_free, jumbop_count + jumbop_free,
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jumbop_limit, jumbop_size / 1024);
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xo_emit("{:jumbo9-count/%ju}/{:jumbo9-cache/%ju}/"
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"{:jumbo9-total/%ju}/{:jumbo9-max/%ju} "
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"{N:9k jumbo clusters in use (current\\/cache\\/total\\/max)}\n",
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jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free,
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jumbo9_limit);
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xo_emit("{:jumbo16-count/%ju}/{:jumbo16-cache/%ju}/"
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"{:jumbo16-total/%ju}/{:jumbo16-limit/%ju} "
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"{N:16k jumbo clusters in use (current\\/cache\\/total\\/max)}\n",
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jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free,
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jumbo16_limit);
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#if 0
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xo_emit("{:tag-count/%ju} {N:mbuf tags in use}\n", tag_count);
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#endif
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/*-
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* Calculate in-use bytes as:
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* - straight mbuf memory
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* - mbuf memory in packets
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* - the clusters attached to packets
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* - and the rest of the non-packet-attached clusters.
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* - m_tag memory
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* This avoids counting the clusters attached to packets in the cache.
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* This currently excludes sf_buf space.
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*/
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bytes_inuse =
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mbuf_bytes + /* straight mbuf memory */
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packet_bytes + /* mbufs in packets */
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(packet_count * cluster_size) + /* clusters in packets */
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/* other clusters */
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((cluster_count - packet_count - packet_free) * cluster_size) +
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tag_bytes +
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(jumbop_count * jumbop_size) + /* jumbo clusters */
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(jumbo9_count * jumbo9_size) +
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(jumbo16_count * jumbo16_size);
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/*
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* Calculate in-cache bytes as:
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* - cached straught mbufs
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* - cached packet mbufs
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* - cached packet clusters
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* - cached straight clusters
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* This currently excludes sf_buf space.
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*/
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bytes_incache =
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(mbuf_free * mbuf_size) + /* straight free mbufs */
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(packet_free * mbuf_size) + /* mbufs in free packets */
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(packet_free * cluster_size) + /* clusters in free packets */
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(cluster_free * cluster_size) + /* free clusters */
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(jumbop_free * jumbop_size) + /* jumbo clusters */
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(jumbo9_free * jumbo9_size) +
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(jumbo16_free * jumbo16_size);
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/*
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* Total is bytes in use + bytes in cache. This doesn't take into
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* account various other misc data structures, overhead, etc, but
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* gives the user something useful despite that.
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*/
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bytes_total = bytes_inuse + bytes_incache;
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xo_emit("{:bytes-in-use/%ju}{U:K}/{:bytes-in-cache/%ju}{U:K}/"
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"{:bytes-total/%ju}{U:K} "
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"{N:bytes allocated to network (current\\/cache\\/total)}\n",
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bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024);
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xo_emit("{:mbuf-failures/%ju}/{:cluster-failures/%ju}/"
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"{:packet-failures/%ju} {N:requests for mbufs denied "
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"(mbufs\\/clusters\\/mbuf+clusters)}\n",
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mbuf_failures, cluster_failures, packet_failures);
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xo_emit("{:mbuf-sleeps/%ju}/{:cluster-sleeps/%ju}/{:packet-sleeps/%ju} "
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"{N:requests for mbufs delayed "
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"(mbufs\\/clusters\\/mbuf+clusters)}\n",
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mbuf_sleeps, cluster_sleeps, packet_sleeps);
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xo_emit("{:jumbop-sleeps/%ju}/{:jumbo9-sleeps/%ju}/"
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"{:jumbo16-sleeps/%ju} {N:/requests for jumbo clusters delayed "
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"(%juk\\/9k\\/16k)}\n",
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jumbop_sleeps, jumbo9_sleeps, jumbo16_sleeps, jumbop_size / 1024);
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xo_emit("{:jumbop-failures/%ju}/{:jumbo9-failures/%ju}/"
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"{:jumbo16-failures/%ju} {N:/requests for jumbo clusters denied "
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"(%juk\\/9k\\/16k)}\n",
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jumbop_failures, jumbo9_failures, jumbo16_failures,
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jumbop_size / 1024);
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mlen = sizeof(nsfbufs);
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if (live &&
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sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 &&
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sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen,
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NULL, 0) == 0 &&
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sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen,
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NULL, 0) == 0)
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xo_emit("{:nsfbufs-current/%d}/{:nsfbufs-peak/%d}/"
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"{:nsfbufs/%d} "
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"{N:sfbufs in use (current\\/peak\\/max)}\n",
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nsfbufsused, nsfbufspeak, nsfbufs);
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if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat),
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kread_counters) != 0)
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goto out;
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xo_emit("{:sendfile-syscalls/%ju} {N:sendfile syscalls}\n",
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(uintmax_t)sfstat.sf_syscalls);
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xo_emit("{:sendfile-no-io/%ju} "
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"{N:sendfile syscalls completed without I\\/O request}\n",
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(uintmax_t)sfstat.sf_noiocnt);
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xo_emit("{:sendfile-io-count/%ju} "
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"{N:requests for I\\/O initiated by sendfile}\n",
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(uintmax_t)sfstat.sf_iocnt);
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xo_emit("{:sendfile-pages-sent/%ju} "
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"{N:pages read by sendfile as part of a request}\n",
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(uintmax_t)sfstat.sf_pages_read);
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xo_emit("{:sendfile-pages-valid/%ju} "
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"{N:pages were valid at time of a sendfile request}\n",
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(uintmax_t)sfstat.sf_pages_valid);
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xo_emit("{:sendfile-requested-readahead/%ju} "
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"{N:pages were requested for read ahead by applications}\n",
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(uintmax_t)sfstat.sf_rhpages_requested);
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xo_emit("{:sendfile-readahead/%ju} "
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"{N:pages were read ahead by sendfile}\n",
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(uintmax_t)sfstat.sf_rhpages_read);
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xo_emit("{:sendfile-busy-encounters/%ju} "
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"{N:times sendfile encountered an already busy page}\n",
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(uintmax_t)sfstat.sf_busy);
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xo_emit("{:sfbufs-alloc-failed/%ju} {N:requests for sfbufs denied}\n",
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(uintmax_t)sfstat.sf_allocfail);
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xo_emit("{:sfbufs-alloc-wait/%ju} {N:requests for sfbufs delayed}\n",
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(uintmax_t)sfstat.sf_allocwait);
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out:
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xo_close_container("mbuf-statistics");
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memstat_mtl_free(mtlp);
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}
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