2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California.
4 * Copyright (c) 2005 Robert N. M. Watson
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
45 #include <sys/param.h>
47 #include <sys/protosw.h>
48 #include <sys/socket.h>
49 #include <sys/socketvar.h>
50 #include <sys/sysctl.h>
62 * Print mbuf statistics.
65 mbpr(void *kvmd, u_long mbaddr)
67 struct memory_type_list *mtlp;
68 struct memory_type *mtp;
69 uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size;
70 uintmax_t cluster_count, cluster_bytes, cluster_limit, cluster_free;
71 uintmax_t cluster_failures, cluster_size;
72 uintmax_t packet_count, packet_bytes, packet_free, packet_failures;
73 uintmax_t tag_count, tag_bytes;
74 uintmax_t jumbop_count, jumbop_bytes, jumbop_limit, jumbop_free;
75 uintmax_t jumbop_failures, jumbop_size;
76 uintmax_t jumbo9_count, jumbo9_bytes, jumbo9_limit, jumbo9_free;
77 uintmax_t jumbo9_failures, jumbo9_size;
78 uintmax_t jumbo16_count, jumbo16_bytes, jumbo16_limit, jumbo16_free;
79 uintmax_t jumbo16_failures, jumbo16_size;
80 uintmax_t bytes_inuse, bytes_incache, bytes_total;
81 int nsfbufs, nsfbufspeak, nsfbufsused;
86 mtlp = memstat_mtl_alloc();
88 warn("memstat_mtl_alloc");
93 * Use memstat_*_all() because some mbuf-related memory is in uma(9),
97 if (memstat_sysctl_all(mtlp, 0) < 0) {
98 warnx("memstat_sysctl_all: %s",
99 memstat_strerror(memstat_mtl_geterror(mtlp)));
103 if (memstat_kvm_all(mtlp, kvmd) < 0) {
104 error = memstat_mtl_geterror(mtlp);
105 if (error == MEMSTAT_ERROR_KVM)
106 warnx("memstat_kvm_all: %s",
109 warnx("memstat_kvm_all: %s",
110 memstat_strerror(error));
115 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
117 warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
120 mbuf_count = memstat_get_count(mtp);
121 mbuf_bytes = memstat_get_bytes(mtp);
122 mbuf_free = memstat_get_free(mtp);
123 mbuf_failures = memstat_get_failures(mtp);
124 mbuf_size = memstat_get_size(mtp);
126 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
128 warnx("memstat_mtl_find: zone %s not found",
129 MBUF_PACKET_MEM_NAME);
132 packet_count = memstat_get_count(mtp);
133 packet_bytes = memstat_get_bytes(mtp);
134 packet_free = memstat_get_free(mtp);
135 packet_failures = memstat_get_failures(mtp);
137 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
139 warnx("memstat_mtl_find: zone %s not found",
140 MBUF_CLUSTER_MEM_NAME);
143 cluster_count = memstat_get_count(mtp);
144 cluster_bytes = memstat_get_bytes(mtp);
145 cluster_limit = memstat_get_countlimit(mtp);
146 cluster_free = memstat_get_free(mtp);
147 cluster_failures = memstat_get_failures(mtp);
148 cluster_size = memstat_get_size(mtp);
150 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
152 warnx("memstat_mtl_find: malloc type %s not found",
156 tag_count = memstat_get_count(mtp);
157 tag_bytes = memstat_get_bytes(mtp);
159 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
161 warnx("memstat_mtl_find: zone %s not found",
162 MBUF_JUMBOP_MEM_NAME);
165 jumbop_count = memstat_get_count(mtp);
166 jumbop_bytes = memstat_get_bytes(mtp);
167 jumbop_limit = memstat_get_countlimit(mtp);
168 jumbop_free = memstat_get_free(mtp);
169 jumbop_failures = memstat_get_failures(mtp);
170 jumbop_size = memstat_get_size(mtp);
172 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
174 warnx("memstat_mtl_find: zone %s not found",
175 MBUF_JUMBO9_MEM_NAME);
178 jumbo9_count = memstat_get_count(mtp);
179 jumbo9_bytes = memstat_get_bytes(mtp);
180 jumbo9_limit = memstat_get_countlimit(mtp);
181 jumbo9_free = memstat_get_free(mtp);
182 jumbo9_failures = memstat_get_failures(mtp);
183 jumbo9_size = memstat_get_size(mtp);
185 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
187 warnx("memstat_mtl_find: zone %s not found",
188 MBUF_JUMBO16_MEM_NAME);
191 jumbo16_count = memstat_get_count(mtp);
192 jumbo16_bytes = memstat_get_bytes(mtp);
193 jumbo16_limit = memstat_get_countlimit(mtp);
194 jumbo16_free = memstat_get_free(mtp);
195 jumbo16_failures = memstat_get_failures(mtp);
196 jumbo16_size = memstat_get_size(mtp);
198 printf("%ju/%ju/%ju mbufs in use (current/cache/total)\n",
199 mbuf_count + packet_count, mbuf_free + packet_free,
200 mbuf_count + packet_count + mbuf_free + packet_free);
202 printf("%ju/%ju/%ju/%ju mbuf clusters in use "
203 "(current/cache/total/max)\n",
204 cluster_count - packet_free, cluster_free + packet_free,
205 cluster_count + cluster_free, cluster_limit);
207 printf("%ju/%ju mbuf+clusters out of packet secondary zone in use "
209 packet_count, packet_free);
211 printf("%ju/%ju/%ju/%ju %juk (page size) jumbo clusters in use "
212 "(current/cache/total/max)\n",
213 jumbop_count, jumbop_free, jumbop_count + jumbop_free,
214 jumbop_limit, jumbop_size / 1024);
216 printf("%ju/%ju/%ju/%ju 9k jumbo clusters in use "
217 "(current/cache/total/max)\n",
218 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free,
221 printf("%ju/%ju/%ju/%ju 16k jumbo clusters in use "
222 "(current/cache/total/max)\n",
223 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free,
227 printf("%ju mbuf tags in use\n", tag_count);
231 * Calculate in-use bytes as:
232 * - straight mbuf memory
233 * - mbuf memory in packets
234 * - the clusters attached to packets
235 * - and the rest of the non-packet-attached clusters.
237 * This avoids counting the clusters attached to packets in the cache.
238 * This currently excludes sf_buf space.
241 mbuf_bytes + /* straight mbuf memory */
242 packet_bytes + /* mbufs in packets */
243 (packet_count * cluster_size) + /* clusters in packets */
245 ((cluster_count - packet_count - packet_free) * cluster_size) +
247 (jumbop_count * jumbop_size) + /* jumbo clusters */
248 (jumbo9_count * jumbo9_size) +
249 (jumbo16_count * jumbo16_size);
252 * Calculate in-cache bytes as:
253 * - cached straught mbufs
254 * - cached packet mbufs
255 * - cached packet clusters
256 * - cached straight clusters
257 * This currently excludes sf_buf space.
260 (mbuf_free * mbuf_size) + /* straight free mbufs */
261 (packet_free * mbuf_size) + /* mbufs in free packets */
262 (packet_free * cluster_size) + /* clusters in free packets */
263 (cluster_free * cluster_size) + /* free clusters */
264 (jumbop_free * jumbop_size) + /* jumbo clusters */
265 (jumbo9_free * jumbo9_size) +
266 (jumbo16_free * jumbo16_size);
269 * Total is bytes in use + bytes in cache. This doesn't take into
270 * account various other misc data structures, overhead, etc, but
271 * gives the user something useful despite that.
273 bytes_total = bytes_inuse + bytes_incache;
275 printf("%juK/%juK/%juK bytes allocated to network "
276 "(current/cache/total)\n", bytes_inuse / 1024,
277 bytes_incache / 1024, bytes_total / 1024);
279 printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/"
280 "mbuf+clusters)\n", mbuf_failures, cluster_failures,
283 printf("%ju/%ju/%ju requests for jumbo clusters denied "
284 "(%juk/9k/16k)\n", jumbop_failures, jumbo9_failures,
285 jumbo16_failures, jumbop_size / 1024);
288 mlen = sizeof(nsfbufs);
289 if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL,
291 !sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused,
293 !sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak,
295 printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
296 nsfbufsused, nsfbufspeak, nsfbufs);
297 mlen = sizeof(mbstat);
298 if (sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) {
299 warn("kern.ipc.mbstat");
303 if (kread(mbaddr, (char *)&mbstat, sizeof mbstat) != 0)
306 printf("%lu requests for sfbufs denied\n", mbstat.sf_allocfail);
307 printf("%lu requests for sfbufs delayed\n", mbstat.sf_allocwait);
308 printf("%lu requests for I/O initiated by sendfile\n",
310 printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
312 memstat_mtl_free(mtlp);