2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
38 static const char rcsid[] =
42 #include <sys/param.h>
44 #include <sys/protosw.h>
45 #include <sys/socket.h>
46 #include <sys/sysctl.h>
57 /* XXX: mbtypes stats temporarily disactivated. */
59 static struct mbtypenames {
64 { MT_OOBDATA, "oob data" },
65 { MT_CONTROL, "ancillary data" },
66 { MT_HEADER, "packet headers" },
68 { MT_SOCKET, "socket structures" }, /* XXX */
71 { MT_PCB, "protocol control blocks" }, /* XXX */
74 { MT_RTABLE, "routing table entries" }, /* XXX */
77 { MT_HTABLE, "IMP host table entries" }, /* XXX */
80 { MT_ATABLE, "address resolution tables" },
82 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
83 { MT_SONAME, "socket names and addresses" },
85 { MT_SOOPTS, "socket options" },
88 { MT_RIGHTS, "access rights" },
91 { MT_IFADDR, "interface addresses" }, /* XXX */
98 * Print mbuf statistics.
101 mbpr(u_long mbaddr, u_long mbtaddr, u_long nmbcaddr, u_long nmbufaddr,
102 u_long mblimaddr, u_long cllimaddr, u_long cpusaddr, u_long pgsaddr,
105 int i, nmbufs, nmbclusters, page_size, num_objs;
106 u_int mbuf_limit, clust_limit;
107 u_long totspace[2], totused[2], totnum, totfree;
109 struct mbstat *mbstat = NULL;
110 struct mbpstat **mbpstat = NULL;
112 /* XXX: mbtypes stats temporarily disabled. */
116 struct mbtypenames *mp;
117 u_long *mbtypes = NULL;
122 * We can't kread() mbtypeslen from a core image so we'll
123 * bogusly assume it's the same as in the running kernel.
125 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) {
126 warn("sysctl: retrieving mbtypes length");
129 if ((mbtypes = malloc(mbtypeslen)) == NULL) {
130 warn("malloc: %lu bytes for mbtypes", (u_long)mbtypeslen);
134 nmbtypes = mbtypeslen / sizeof(*mbtypes);
135 if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) {
141 mlen = sizeof *mbstat;
142 if ((mbstat = malloc(mlen)) == NULL) {
143 warn("malloc: cannot allocate memory for mbstat");
148 * XXX: Unfortunately, for the time being, we have to fetch
149 * the total length of the per-CPU stats area via sysctl
150 * (regardless of whether we're looking at a core or not.
152 if (sysctlbyname("kern.ipc.mb_statpcpu", NULL, &mlen, NULL, 0) < 0) {
153 warn("sysctl: retrieving mb_statpcpu len");
156 num_objs = (int)(mlen / sizeof(struct mbpstat));
157 if ((mbpstat = calloc(num_objs, sizeof(struct mbpstat *))) == NULL) {
158 warn("calloc: cannot allocate memory for mbpstats pointers");
161 if ((mbpstat[0] = calloc(num_objs, sizeof(struct mbpstat))) == NULL) {
162 warn("calloc: cannot allocate memory for mbpstats");
167 if (kread(mbpaddr, (char *)mbpstat[0], mlen))
169 if (kread(mbaddr, (char *)mbstat, sizeof mbstat))
172 if (kread(mbtaddr, (char *)mbtypes, mbtypeslen))
175 if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int)))
177 if (kread(nmbufaddr, (char *)&nmbufs, sizeof(int)))
179 if (kread(mblimaddr, (char *)&mbuf_limit, sizeof(u_int)))
181 if (kread(cllimaddr, (char *)&clust_limit, sizeof(u_int)))
183 if (kread(pgsaddr, (char *)&page_size, sizeof(int)))
186 if (sysctlbyname("kern.ipc.mb_statpcpu", mbpstat[0], &mlen,
188 warn("sysctl: retrieving mb_statpcpu");
191 mlen = sizeof *mbstat;
192 if (sysctlbyname("kern.ipc.mbstat", mbstat, &mlen, NULL, 0)
194 warn("sysctl: retrieving mbstat");
198 if (sysctlbyname("kern.ipc.mbtypes", mbtypes, &mbtypeslen, NULL,
200 warn("sysctl: retrieving mbtypes");
205 if (sysctlbyname("kern.ipc.nmbclusters", &nmbclusters, &mlen,
207 warn("sysctl: retrieving nmbclusters");
211 if (sysctlbyname("kern.ipc.nmbufs", &nmbufs, &mlen, NULL, 0)
213 warn("sysctl: retrieving nmbufs");
216 mlen = sizeof(u_int);
217 if (sysctlbyname("kern.ipc.mbuf_limit", &mbuf_limit, &mlen,
219 warn("sysctl: retrieving mbuf_limit");
222 mlen = sizeof(u_int);
223 if (sysctlbyname("kern.ipc.clust_limit", &clust_limit, &mlen,
225 warn("sysctl: retrieving clust_limit");
229 if (sysctlbyname("hw.pagesize", &page_size, &mlen, NULL, 0)
231 warn("sysctl: retrieving hw.pagesize");
236 for (i = 0; i < num_objs; i++)
237 mbpstat[i] = mbpstat[0] + i;
240 #define MSIZE (mbstat->m_msize)
242 #define MCLBYTES (mbstat->m_mclbytes)
243 #define MBPERPG (page_size / MSIZE)
244 #define CLPERPG (page_size / MCLBYTES)
245 #define GENLST (num_objs - 1)
247 printf("mbuf usage:\n");
248 printf("\tGEN list:\t%lu/%lu (in use/in pool)\n",
249 (mbpstat[GENLST]->mb_mbpgs * MBPERPG - mbpstat[GENLST]->mb_mbfree),
250 (mbpstat[GENLST]->mb_mbpgs * MBPERPG));
251 totnum = mbpstat[GENLST]->mb_mbpgs * MBPERPG;
252 totfree = mbpstat[GENLST]->mb_mbfree;
253 totspace[0] = mbpstat[GENLST]->mb_mbpgs * page_size;
254 for (i = 0; i < (num_objs - 1); i++) {
255 if (mbpstat[i]->mb_active == 0)
257 printf("\tCPU #%d list:\t%lu/%lu (in use/in pool)\n", i,
258 (mbpstat[i]->mb_mbpgs * MBPERPG - mbpstat[i]->mb_mbfree),
259 (mbpstat[i]->mb_mbpgs * MBPERPG));
260 totspace[0] += mbpstat[i]->mb_mbpgs * page_size;
261 totnum += mbpstat[i]->mb_mbpgs * MBPERPG;
262 totfree += mbpstat[i]->mb_mbfree;
264 totused[0] = totnum - totfree;
265 printf("\tTotal:\t\t%lu/%lu (in use/in pool)\n", totused[0], totnum);
266 printf("\tMaximum number allowed on each CPU list: %d\n", mbuf_limit);
267 printf("\tMaximum possible: %d\n", nmbufs);
268 printf("\t%lu%% of mbuf map consumed\n", ((totspace[0] * 100) / (nmbufs
271 printf("mbuf cluster usage:\n");
272 printf("\tGEN list:\t%lu/%lu (in use/in pool)\n",
273 (mbpstat[GENLST]->mb_clpgs * CLPERPG - mbpstat[GENLST]->mb_clfree),
274 (mbpstat[GENLST]->mb_clpgs * CLPERPG));
275 totnum = mbpstat[GENLST]->mb_clpgs * CLPERPG;
276 totfree = mbpstat[GENLST]->mb_clfree;
277 totspace[1] = mbpstat[GENLST]->mb_clpgs * page_size;
278 for (i = 0; i < (num_objs - 1); i++) {
279 if (mbpstat[i]->mb_active == 0)
281 printf("\tCPU #%d list:\t%lu/%lu (in use/in pool)\n", i,
282 (mbpstat[i]->mb_clpgs * CLPERPG - mbpstat[i]->mb_clfree),
283 (mbpstat[i]->mb_clpgs * CLPERPG));
284 totspace[1] += mbpstat[i]->mb_clpgs * page_size;
285 totnum += mbpstat[i]->mb_clpgs * CLPERPG;
286 totfree += mbpstat[i]->mb_clfree;
288 totused[1] = totnum - totfree;
289 printf("\tTotal:\t\t%lu/%lu (in use/in pool)\n", totused[1], totnum);
290 printf("\tMaximum number allowed on each CPU list: %d\n", clust_limit);
291 printf("\tMaximum possible: %d\n", nmbclusters);
292 printf("\t%lu%% of cluster map consumed\n", ((totspace[1] * 100) /
293 (nmbclusters * MCLBYTES)));
295 printf("%lu KBytes of wired memory reserved (%lu%% in use)\n",
296 (totspace[0] + totspace[1]) / 1024, ((totused[0] * MSIZE +
297 totused[1] * MCLBYTES) * 100) / (totspace[0] + totspace[1]));
298 printf("%lu requests for memory denied\n", mbstat->m_drops);
299 printf("%lu requests for memory delayed\n", mbstat->m_wait);
300 printf("%lu calls to protocol drain routines\n", mbstat->m_drain);
311 if (mbpstat != NULL) {
312 if (mbpstat[0] != NULL)