mirror of
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f70f5dd367
- Make sure to try hw.ncpu if kern.smp.cpus doesn't exist (i.e. on UP) to get number of CPUs.
320 lines
9.6 KiB
C
320 lines
9.6 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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/* XXX: mbtypes stats temporarily disactivated. */
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#if 0
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static struct mbtypenames {
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int mt_type;
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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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#endif /* 0 */
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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, u_long nmbcaddr, u_long nmbufaddr,
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u_long mblimaddr, u_long cllimaddr, u_long cpusaddr, u_long pgsaddr,
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u_long mbpaddr)
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{
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int i, nmbufs, nmbclusters, ncpu, page_size, num_objs;
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u_int mbuf_limit, clust_limit;
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u_long totspace, totnum, totfree;
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size_t mlen;
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struct mbstat *mbstat = NULL;
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struct mbpstat **mbpstat = NULL;
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/* XXX: mbtypes stats temporarily disabled. */
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#if 0
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int nmbtypes;
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size_t mbtypeslen;
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struct mbtypenames *mp;
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u_long *mbtypes = NULL;
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bool *seen = NULL;
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/*
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* XXX
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* We can't kread() mbtypeslen from a core image so we'll
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* bogusly assume it's the same as in the running kernel.
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*/
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if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) {
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warn("sysctl: retrieving mbtypes length");
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goto err;
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}
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if ((mbtypes = malloc(mbtypeslen)) == NULL) {
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warn("malloc: %lu bytes for mbtypes", (u_long)mbtypeslen);
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goto err;
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}
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nmbtypes = mbtypeslen / sizeof(*mbtypes);
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if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) {
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warn("calloc");
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goto err;
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}
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#endif
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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 0
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if (kread(mbtaddr, (char *)mbtypes, mbtypeslen))
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goto err;
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#endif
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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(mblimaddr, (char *)&mbuf_limit, sizeof(u_int)))
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goto err;
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if (kread(cllimaddr, (char *)&clust_limit, sizeof(u_int)))
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goto err;
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if (kread(cpusaddr, (char *)&ncpu, sizeof(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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#if 0
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if (sysctlbyname("kern.ipc.mbtypes", mbtypes, &mbtypeslen, NULL,
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0) < 0) {
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warn("sysctl: retrieving mbtypes");
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goto err;
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}
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#endif
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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_limit", &mbuf_limit, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving mbuf_limit");
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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_limit", &clust_limit, &mlen,
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NULL, 0) < 0) {
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warn("sysctl: retrieving clust_limit");
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goto err;
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}
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mlen = sizeof(int);
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if (sysctlbyname("kern.smp.cpus", &ncpu, &mlen, NULL, 0) < 0 &&
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sysctlbyname("hw.ncpu", &ncpu, &mlen, NULL, 0) < 0) {
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warn("sysctl: retrieving number of cpus");
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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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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 MBPERPG (page_size / MSIZE)
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#define CLPERPG (page_size / MCLBYTES)
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#define GENLST (num_objs - 1)
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printf("mbuf usage:\n");
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printf("\tGEN list:\t%lu/%lu (in use/in pool)\n",
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(mbpstat[GENLST]->mb_mbpgs * MBPERPG - mbpstat[GENLST]->mb_mbfree),
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(mbpstat[GENLST]->mb_mbpgs * MBPERPG));
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totnum = mbpstat[GENLST]->mb_mbpgs * MBPERPG;
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totfree = mbpstat[GENLST]->mb_mbfree;
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totspace = mbpstat[GENLST]->mb_mbpgs * page_size;
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for (i = 0; i < ncpu; i++) {
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printf("\tCPU #%d list:\t%lu/%lu (in use/in pool)\n", i,
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(mbpstat[i]->mb_mbpgs * MBPERPG - mbpstat[i]->mb_mbfree),
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(mbpstat[i]->mb_mbpgs * MBPERPG));
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totspace += mbpstat[i]->mb_mbpgs * page_size;
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totnum += mbpstat[i]->mb_mbpgs * MBPERPG;
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totfree += mbpstat[i]->mb_mbfree;
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}
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printf("\tTotal:\t\t%lu/%lu (in use/in pool)\n", (totnum - totfree),
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totnum);
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printf("\tMaximum number allowed on each CPU list: %d\n", mbuf_limit);
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printf("\tMaximum possible: %d\n", nmbufs);
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printf("\t%lu%% of mbuf map consumed\n", ((totspace * 100) / (nmbufs
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* MSIZE)));
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printf("mbuf cluster usage:\n");
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printf("\tGEN list:\t%lu/%lu (in use/in pool)\n",
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(mbpstat[GENLST]->mb_clpgs * CLPERPG - mbpstat[GENLST]->mb_clfree),
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(mbpstat[GENLST]->mb_clpgs * CLPERPG));
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totnum = mbpstat[GENLST]->mb_clpgs * CLPERPG;
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totfree = mbpstat[GENLST]->mb_clfree;
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totspace = mbpstat[GENLST]->mb_clpgs * page_size;
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for (i = 0; i < ncpu; i++) {
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printf("\tCPU #%d list:\t%lu/%lu (in use/in pool)\n", i,
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(mbpstat[i]->mb_clpgs * CLPERPG - mbpstat[i]->mb_clfree),
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(mbpstat[i]->mb_clpgs * CLPERPG));
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totspace += mbpstat[i]->mb_clpgs * page_size;
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totnum += mbpstat[i]->mb_clpgs * CLPERPG;
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totfree += mbpstat[i]->mb_clfree;
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}
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printf("\tTotal:\t\t%lu/%lu (in use/in pool)\n", (totnum - totfree),
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totnum);
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printf("\tMaximum number allowed on each CPU list: %d\n", clust_limit);
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printf("\tMaximum possible: %d\n", nmbclusters);
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printf("\t%lu%% of cluster map consumed\n", ((totspace * 100) /
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(nmbclusters * MCLBYTES)));
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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 calls to protocol drain routines\n", mbstat->m_drain);
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err:
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#if 0
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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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#endif
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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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return;
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}
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