375 lines
12 KiB
C
375 lines
12 KiB
C
/*
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. 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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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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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/socket.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "netstat.h"
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#define YES 1
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typedef int bool;
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static struct mbtypenames {
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short mt_type;
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const char *mt_name;
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} mbtypenames[] = {
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{ MT_DATA, "data" },
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{ MT_OOBDATA, "oob data" },
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{ MT_CONTROL, "ancillary data" },
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{ MT_HEADER, "packet headers" },
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#ifdef MT_SOCKET
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{ MT_SOCKET, "socket structures" }, /* XXX */
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#endif
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#ifdef MT_PCB
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{ MT_PCB, "protocol control blocks" }, /* XXX */
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#endif
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#ifdef MT_RTABLE
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{ MT_RTABLE, "routing table entries" }, /* XXX */
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#endif
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#ifdef MT_HTABLE
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{ MT_HTABLE, "IMP host table entries" }, /* XXX */
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#endif
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#ifdef MT_ATABLE
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{ MT_ATABLE, "address resolution tables" },
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#endif
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{ MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
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{ MT_SONAME, "socket names and addresses" },
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#ifdef MT_SOOPTS
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{ MT_SOOPTS, "socket options" },
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#endif
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#ifdef MT_RIGHTS
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{ MT_RIGHTS, "access rights" },
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#endif
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#ifdef MT_IFADDR
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{ MT_IFADDR, "interface addresses" }, /* XXX */
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#endif
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{ 0, 0 }
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};
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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(u_long mbaddr, u_long mbtaddr __unused, u_long nmbcaddr, u_long nmbufaddr,
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u_long mbhiaddr, u_long clhiaddr, u_long mbloaddr, u_long clloaddr,
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u_long cpusaddr __unused, u_long pgsaddr, u_long mbpaddr)
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{
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int i, j, nmbufs, nmbclusters, page_size, num_objs;
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int nsfbufs, nsfbufspeak, nsfbufsused;
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u_int mbuf_hiwm, clust_hiwm, mbuf_lowm, clust_lowm;
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u_long totspace[2], totused[2];
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u_long gentotnum, gentotfree, totnum, totfree;
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u_long totmem, totmemalloced, totmemused;
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short nmbtypes;
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size_t mlen;
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long *mbtypes = NULL;
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struct mbstat *mbstat = NULL;
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struct mbpstat **mbpstat = NULL;
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struct mbtypenames *mp;
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bool *seen = NULL;
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mlen = sizeof *mbstat;
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if ((mbstat = malloc(mlen)) == NULL) {
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warn("malloc: cannot allocate memory for mbstat");
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goto err;
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}
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/*
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* XXX: Unfortunately, for the time being, we have to fetch
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* the total length of the per-CPU stats area via sysctl
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* (regardless of whether we're looking at a core or not.
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*/
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if (sysctlbyname("kern.ipc.mb_statpcpu", NULL, &mlen, NULL, 0) < 0) {
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warn("sysctl: retrieving mb_statpcpu len");
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goto err;
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}
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num_objs = (int)(mlen / sizeof(struct mbpstat));
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if ((mbpstat = calloc(num_objs, sizeof(struct mbpstat *))) == NULL) {
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warn("calloc: cannot allocate memory for mbpstats pointers");
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goto err;
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}
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if ((mbpstat[0] = calloc(num_objs, sizeof(struct mbpstat))) == NULL) {
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warn("calloc: cannot allocate memory for mbpstats");
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goto err;
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}
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if (mbaddr) {
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if (kread(mbpaddr, (char *)mbpstat[0], mlen))
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goto err;
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if (kread(mbaddr, (char *)mbstat, sizeof mbstat))
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goto err;
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if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int)))
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goto err;
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if (kread(nmbufaddr, (char *)&nmbufs, sizeof(int)))
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goto err;
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if (kread(mbhiaddr, (char *)&mbuf_hiwm, sizeof(u_int)))
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goto err;
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if (kread(clhiaddr, (char *)&clust_hiwm, sizeof(u_int)))
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goto err;
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if (kread(mbloaddr, (char *)&mbuf_lowm, sizeof(u_int)))
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goto err;
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if (kread(clloaddr, (char *)&clust_lowm, sizeof(u_int)))
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goto err;
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if (kread(pgsaddr, (char *)&page_size, sizeof(int)))
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goto err;
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} else {
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if (sysctlbyname("kern.ipc.mb_statpcpu", mbpstat[0], &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving mb_statpcpu");
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goto err;
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}
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mlen = sizeof *mbstat;
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if (sysctlbyname("kern.ipc.mbstat", mbstat, &mlen, NULL, 0)
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< 0) {
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warn("sysctl: retrieving mbstat");
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goto err;
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}
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mlen = sizeof(int);
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if (sysctlbyname("kern.ipc.nmbclusters", &nmbclusters, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving nmbclusters");
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goto err;
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}
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mlen = sizeof(int);
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if (sysctlbyname("kern.ipc.nmbufs", &nmbufs, &mlen, NULL, 0)
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< 0) {
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warn("sysctl: retrieving nmbufs");
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goto err;
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}
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mlen = sizeof(u_int);
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if (sysctlbyname("kern.ipc.mbuf_hiwm", &mbuf_hiwm, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving mbuf_hiwm");
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goto err;
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}
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mlen = sizeof(u_int);
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if (sysctlbyname("kern.ipc.clust_hiwm", &clust_hiwm, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving clust_hiwm");
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goto err;
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}
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mlen = sizeof(u_int);
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if (sysctlbyname("kern.ipc.mbuf_lowm", &mbuf_lowm, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving mbuf_lowm");
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goto err;
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}
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mlen = sizeof(u_int);
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if (sysctlbyname("kern.ipc.clust_lowm", &clust_lowm, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving clust_lowm");
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goto err;
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}
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mlen = sizeof(int);
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if (sysctlbyname("hw.pagesize", &page_size, &mlen, NULL, 0)
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< 0) {
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warn("sysctl: retrieving hw.pagesize");
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goto err;
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}
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}
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nmbtypes = mbstat->m_numtypes;
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if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) {
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warn("calloc: cannot allocate memory for mbtypes seen flag");
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goto err;
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}
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if ((mbtypes = calloc(nmbtypes, sizeof(long *))) == NULL) {
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warn("calloc: cannot allocate memory for mbtypes");
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goto err;
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}
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for (i = 0; i < num_objs; i++)
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mbpstat[i] = mbpstat[0] + i;
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#undef MSIZE
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#define MSIZE (mbstat->m_msize)
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#undef MCLBYTES
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#define MCLBYTES (mbstat->m_mclbytes)
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#define GENLST (num_objs - 1)
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totnum = mbpstat[GENLST]->mb_mbbucks * mbstat->m_mbperbuck;
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totfree = mbpstat[GENLST]->mb_mbfree;
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for (j = 1; j < nmbtypes; j++)
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mbtypes[j] += mbpstat[GENLST]->mb_mbtypes[j];
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totspace[0] = mbpstat[GENLST]->mb_mbbucks * mbstat->m_mbperbuck * MSIZE;
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for (i = 0; i < (num_objs - 1); i++) {
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if (mbpstat[i]->mb_active == 0)
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continue;
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totspace[0] += mbpstat[i]->mb_mbbucks*mbstat->m_mbperbuck*MSIZE;
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totnum += mbpstat[i]->mb_mbbucks * mbstat->m_mbperbuck;
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totfree += mbpstat[i]->mb_mbfree;
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for (j = 1; j < nmbtypes; j++)
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mbtypes[j] += mbpstat[i]->mb_mbtypes[j];
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}
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totused[0] = totnum - totfree;
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if (cflag) {
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printf("mbuf usage:\n"
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"\tTotal:\t\t%lu/%lu/%d (in use/in pool/max)\n",
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totused[0], totnum, nmbufs);
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gentotnum = mbpstat[GENLST]->mb_mbbucks * mbstat->m_mbperbuck;
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gentotfree = mbpstat[GENLST]->mb_mbfree;
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printf("\tGEN cache:\t%lu/%lu (in use/in pool)\n",
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gentotnum - gentotfree, gentotnum);
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} else {
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/* XXX: peak is now wrong. */
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printf("%lu/%lu/%d mbufs in use (current/peak/max):\n",
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totused[0], totnum, nmbufs);
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}
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for (i = 0; cflag && i < (num_objs - 1); i++) {
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if (mbpstat[i]->mb_active == 0)
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continue;
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printf("\tCPU #%d cache:\t%lu/%lu (in use/in pool)\n",
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i,
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(mbpstat[i]->mb_mbbucks * mbstat->m_mbperbuck -
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mbpstat[i]->mb_mbfree),
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(mbpstat[i]->mb_mbbucks * mbstat->m_mbperbuck));
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}
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if (cflag) {
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printf("\tMbuf cache high watermark: %d\n", mbuf_hiwm);
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#ifdef NOTYET
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printf("\tMbuf cache low watermark: %d\n", mbuf_lowm);
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#endif
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}
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for (mp = mbtypenames; mp->mt_name; mp++) {
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if (mbtypes[mp->mt_type]) {
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seen[mp->mt_type] = YES;
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printf("\t %lu mbufs allocated to %s\n",
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mbtypes[mp->mt_type], mp->mt_name);
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}
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}
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for (i = 1; i < nmbtypes; i++) {
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if (!seen[i] && mbtypes[i])
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printf("\t %lu mbufs allocated to <mbuf type: %d>\n",
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mbtypes[i], i);
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}
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if (cflag)
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printf("\t%.1f%% of mbuf map consumed\n",
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totspace[0] * 100.0 / (nmbufs * MSIZE));
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totnum = mbpstat[GENLST]->mb_clbucks * mbstat->m_clperbuck;
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totfree = mbpstat[GENLST]->mb_clfree;
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totspace[1] = mbpstat[GENLST]->mb_clbucks*mbstat->m_clperbuck*MCLBYTES;
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for (i = 0; i < (num_objs - 1); i++) {
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if (mbpstat[i]->mb_active == 0)
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continue;
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totspace[1] += mbpstat[i]->mb_clbucks * mbstat->m_clperbuck
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* MCLBYTES;
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totnum += mbpstat[i]->mb_clbucks * mbstat->m_clperbuck;
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totfree += mbpstat[i]->mb_clfree;
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}
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totused[1] = totnum - totfree;
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if (cflag) {
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printf("mbuf cluster usage:\n"
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"\tTotal:\t\t%lu/%lu/%d (in use/in pool/max)\n",
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totused[1], totnum, nmbclusters);
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gentotnum = mbpstat[GENLST]->mb_clbucks * mbstat->m_clperbuck;
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gentotfree = mbpstat[GENLST]->mb_clfree;
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printf("\tGEN cache:\t%lu/%lu (in use/in pool)\n",
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gentotnum - gentotfree, gentotnum);
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} else {
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/* XXX: peak is now wrong. */
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printf("%lu/%lu/%d mbuf clusters in use (current/peak/max)\n",
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totused[1], totnum, nmbclusters);
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}
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for (i = 0; cflag && i < (num_objs - 1); i++) {
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if (mbpstat[i]->mb_active == 0)
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continue;
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printf("\tCPU #%d cache:\t%lu/%lu (in use/in pool)\n",
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i,
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(mbpstat[i]->mb_clbucks * mbstat->m_clperbuck -
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mbpstat[i]->mb_clfree),
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(mbpstat[i]->mb_clbucks * mbstat->m_clperbuck));
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}
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if (cflag) {
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printf("\tCluster cache high watermark: %d\n", clust_hiwm);
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#ifdef NOTYET
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printf("\tCluster cache low watermark: %d\n", clust_lowm);
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#endif
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}
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if (cflag)
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printf("\t%.1f%% of cluster map consumed\n",
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totspace[1] * 100.0 / (nmbclusters * MCLBYTES));
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mlen = sizeof(nsfbufs);
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if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) &&
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!sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, NULL,
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0) &&
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!sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, NULL,
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0)) {
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printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
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nsfbufsused, nsfbufspeak, nsfbufs);
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}
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totmem = nmbufs * MSIZE + nmbclusters * MCLBYTES;
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totmemalloced = totspace[0] + totspace[1];
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totmemused = totused[0] * MSIZE + totused[1] * MCLBYTES;
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printf(
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"%lu KBytes allocated to network (%.1f%% in use, %.1f%% wired)\n",
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totmem / 1024, totmemused * 100.0 / totmem,
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totmemalloced * 100.0 / totmem);
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printf("%lu requests for memory denied\n", mbstat->m_drops);
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printf("%lu requests for memory delayed\n", mbstat->m_wait);
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printf("%lu requests for sfbufs denied\n", mbstat->sf_allocfail);
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printf("%lu requests for sfbufs delayed\n", mbstat->sf_allocwait);
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printf("%lu requests for I/O initiated by sendfile\n",
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mbstat->sf_iocnt);
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printf("%lu calls to protocol drain routines\n", mbstat->m_drain);
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err:
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if (mbtypes != NULL)
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free(mbtypes);
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if (seen != NULL)
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free(seen);
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if (mbstat != NULL)
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free(mbstat);
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if (mbpstat != NULL) {
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if (mbpstat[0] != NULL)
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free(mbpstat[0]);
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free(mbpstat);
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}
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}
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