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/sf_buf.h>
49 #include <sys/socket.h>
50 #include <sys/socketvar.h>
51 #include <sys/sysctl.h>
63 * Print mbuf statistics.
66 mbpr(void *kvmd, u_long mbaddr)
68 struct memory_type_list *mtlp;
69 struct memory_type *mtp;
70 uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size;
71 uintmax_t mbuf_sleeps;
72 uintmax_t cluster_count, cluster_limit, cluster_free;
73 uintmax_t cluster_failures, cluster_size, cluster_sleeps;
74 uintmax_t packet_count, packet_bytes, packet_free, packet_failures;
75 uintmax_t packet_sleeps;
77 uintmax_t jumbop_count, jumbop_limit, jumbop_free;
78 uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size;
79 uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free;
80 uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size;
81 uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free;
82 uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size;
83 uintmax_t bytes_inuse, bytes_incache, bytes_total;
84 int nsfbufs, nsfbufspeak, nsfbufsused;
89 mtlp = memstat_mtl_alloc();
91 warn("memstat_mtl_alloc");
96 * Use memstat_*_all() because some mbuf-related memory is in uma(9),
100 if (memstat_sysctl_all(mtlp, 0) < 0) {
101 warnx("memstat_sysctl_all: %s",
102 memstat_strerror(memstat_mtl_geterror(mtlp)));
106 if (memstat_kvm_all(mtlp, kvmd) < 0) {
107 error = memstat_mtl_geterror(mtlp);
108 if (error == MEMSTAT_ERROR_KVM)
109 warnx("memstat_kvm_all: %s",
112 warnx("memstat_kvm_all: %s",
113 memstat_strerror(error));
118 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
120 warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
123 mbuf_count = memstat_get_count(mtp);
124 mbuf_bytes = memstat_get_bytes(mtp);
125 mbuf_free = memstat_get_free(mtp);
126 mbuf_failures = memstat_get_failures(mtp);
127 mbuf_sleeps = memstat_get_sleeps(mtp);
128 mbuf_size = memstat_get_size(mtp);
130 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
132 warnx("memstat_mtl_find: zone %s not found",
133 MBUF_PACKET_MEM_NAME);
136 packet_count = memstat_get_count(mtp);
137 packet_bytes = memstat_get_bytes(mtp);
138 packet_free = memstat_get_free(mtp);
139 packet_sleeps = memstat_get_sleeps(mtp);
140 packet_failures = memstat_get_failures(mtp);
142 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
144 warnx("memstat_mtl_find: zone %s not found",
145 MBUF_CLUSTER_MEM_NAME);
148 cluster_count = memstat_get_count(mtp);
149 cluster_limit = memstat_get_countlimit(mtp);
150 cluster_free = memstat_get_free(mtp);
151 cluster_failures = memstat_get_failures(mtp);
152 cluster_sleeps = memstat_get_sleeps(mtp);
153 cluster_size = memstat_get_size(mtp);
155 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
157 warnx("memstat_mtl_find: malloc type %s not found",
161 tag_bytes = memstat_get_bytes(mtp);
163 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
165 warnx("memstat_mtl_find: zone %s not found",
166 MBUF_JUMBOP_MEM_NAME);
169 jumbop_count = memstat_get_count(mtp);
170 jumbop_limit = memstat_get_countlimit(mtp);
171 jumbop_free = memstat_get_free(mtp);
172 jumbop_failures = memstat_get_failures(mtp);
173 jumbop_sleeps = memstat_get_sleeps(mtp);
174 jumbop_size = memstat_get_size(mtp);
176 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
178 warnx("memstat_mtl_find: zone %s not found",
179 MBUF_JUMBO9_MEM_NAME);
182 jumbo9_count = memstat_get_count(mtp);
183 jumbo9_limit = memstat_get_countlimit(mtp);
184 jumbo9_free = memstat_get_free(mtp);
185 jumbo9_failures = memstat_get_failures(mtp);
186 jumbo9_sleeps = memstat_get_sleeps(mtp);
187 jumbo9_size = memstat_get_size(mtp);
189 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
191 warnx("memstat_mtl_find: zone %s not found",
192 MBUF_JUMBO16_MEM_NAME);
195 jumbo16_count = memstat_get_count(mtp);
196 jumbo16_limit = memstat_get_countlimit(mtp);
197 jumbo16_free = memstat_get_free(mtp);
198 jumbo16_failures = memstat_get_failures(mtp);
199 jumbo16_sleeps = memstat_get_sleeps(mtp);
200 jumbo16_size = memstat_get_size(mtp);
202 printf("%ju/%ju/%ju mbufs in use (current/cache/total)\n",
203 mbuf_count + packet_count, mbuf_free + packet_free,
204 mbuf_count + packet_count + mbuf_free + packet_free);
206 printf("%ju/%ju/%ju/%ju mbuf clusters in use "
207 "(current/cache/total/max)\n",
208 cluster_count - packet_free, cluster_free + packet_free,
209 cluster_count + cluster_free, cluster_limit);
211 printf("%ju/%ju mbuf+clusters out of packet secondary zone in use "
213 packet_count, packet_free);
215 printf("%ju/%ju/%ju/%ju %juk (page size) jumbo clusters in use "
216 "(current/cache/total/max)\n",
217 jumbop_count, jumbop_free, jumbop_count + jumbop_free,
218 jumbop_limit, jumbop_size / 1024);
220 printf("%ju/%ju/%ju/%ju 9k jumbo clusters in use "
221 "(current/cache/total/max)\n",
222 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free,
225 printf("%ju/%ju/%ju/%ju 16k jumbo clusters in use "
226 "(current/cache/total/max)\n",
227 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free,
231 printf("%ju mbuf tags in use\n", tag_count);
235 * Calculate in-use bytes as:
236 * - straight mbuf memory
237 * - mbuf memory in packets
238 * - the clusters attached to packets
239 * - and the rest of the non-packet-attached clusters.
241 * This avoids counting the clusters attached to packets in the cache.
242 * This currently excludes sf_buf space.
245 mbuf_bytes + /* straight mbuf memory */
246 packet_bytes + /* mbufs in packets */
247 (packet_count * cluster_size) + /* clusters in packets */
249 ((cluster_count - packet_count - packet_free) * cluster_size) +
251 (jumbop_count * jumbop_size) + /* jumbo clusters */
252 (jumbo9_count * jumbo9_size) +
253 (jumbo16_count * jumbo16_size);
256 * Calculate in-cache bytes as:
257 * - cached straught mbufs
258 * - cached packet mbufs
259 * - cached packet clusters
260 * - cached straight clusters
261 * This currently excludes sf_buf space.
264 (mbuf_free * mbuf_size) + /* straight free mbufs */
265 (packet_free * mbuf_size) + /* mbufs in free packets */
266 (packet_free * cluster_size) + /* clusters in free packets */
267 (cluster_free * cluster_size) + /* free clusters */
268 (jumbop_free * jumbop_size) + /* jumbo clusters */
269 (jumbo9_free * jumbo9_size) +
270 (jumbo16_free * jumbo16_size);
273 * Total is bytes in use + bytes in cache. This doesn't take into
274 * account various other misc data structures, overhead, etc, but
275 * gives the user something useful despite that.
277 bytes_total = bytes_inuse + bytes_incache;
279 printf("%juK/%juK/%juK bytes allocated to network "
280 "(current/cache/total)\n", bytes_inuse / 1024,
281 bytes_incache / 1024, bytes_total / 1024);
283 printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/"
284 "mbuf+clusters)\n", mbuf_failures, cluster_failures,
286 printf("%ju/%ju/%ju requests for mbufs delayed (mbufs/clusters/"
287 "mbuf+clusters)\n", mbuf_sleeps, cluster_sleeps,
290 printf("%ju/%ju/%ju requests for jumbo clusters delayed "
291 "(%juk/9k/16k)\n", jumbop_sleeps, jumbo9_sleeps,
292 jumbo16_sleeps, jumbop_size / 1024);
293 printf("%ju/%ju/%ju requests for jumbo clusters denied "
294 "(%juk/9k/16k)\n", jumbop_failures, jumbo9_failures,
295 jumbo16_failures, jumbop_size / 1024);
298 mlen = sizeof(nsfbufs);
299 if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL,
301 !sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused,
303 !sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak,
305 printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
306 nsfbufsused, nsfbufspeak, nsfbufs);
307 mlen = sizeof(sfstat);
308 if (sysctlbyname("kern.ipc.sfstat", &sfstat, &mlen, NULL, 0)) {
309 warn("kern.ipc.sfstat");
313 if (kread_counters(mbaddr, (char *)&sfstat, sizeof sfstat) != 0)
316 printf("%ju requests for sfbufs denied\n",
317 (uintmax_t)sfstat.sf_allocfail);
318 printf("%ju requests for sfbufs delayed\n",
319 (uintmax_t)sfstat.sf_allocwait);
320 printf("%ju requests for I/O initiated by sendfile\n",
321 (uintmax_t)sfstat.sf_iocnt);
323 memstat_mtl_free(mtlp);