1 /*-
2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California.
4 * Copyright (c) 2005 Robert N. M. Watson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
22 *
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
33 * SUCH DAMAGE.
34 */
35
36 #if 0
37 #ifndef lint
38 static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
39 #endif /* not lint */
40 #endif
41
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD: stable/10/usr.bin/netstat/mbuf.c 293307 2016-01-07 07:21:37Z markj $");
44
45 #include <sys/param.h>
46 #include <sys/mbuf.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>
52
53 #include <err.h>
54 #include <kvm.h>
55 #include <memstat.h>
56 #include <stdint.h>
57 #include <stdio.h>
58 #include <stdlib.h>
59 #include <string.h>
60 #include "netstat.h"
61
62 /*
63 * Print mbuf statistics.
64 */
65 void
mbpr(void * kvmd,u_long mbaddr)66 mbpr(void *kvmd, u_long mbaddr)
67 {
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;
76 uintmax_t tag_bytes;
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;
85 struct sfstat sfstat;
86 size_t mlen;
87 int error;
88
89 mtlp = memstat_mtl_alloc();
90 if (mtlp == NULL) {
91 warn("memstat_mtl_alloc");
92 return;
93 }
94
95 /*
96 * Use memstat_*_all() because some mbuf-related memory is in uma(9),
97 * and some malloc(9).
98 */
99 if (live) {
100 if (memstat_sysctl_all(mtlp, 0) < 0) {
101 warnx("memstat_sysctl_all: %s",
102 memstat_strerror(memstat_mtl_geterror(mtlp)));
103 goto out;
104 }
105 } else {
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",
110 kvm_geterr(kvmd));
111 else
112 warnx("memstat_kvm_all: %s",
113 memstat_strerror(error));
114 goto out;
115 }
116 }
117
118 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
119 if (mtp == NULL) {
120 warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
121 goto out;
122 }
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);
129
130 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
131 if (mtp == NULL) {
132 warnx("memstat_mtl_find: zone %s not found",
133 MBUF_PACKET_MEM_NAME);
134 goto out;
135 }
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);
141
142 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
143 if (mtp == NULL) {
144 warnx("memstat_mtl_find: zone %s not found",
145 MBUF_CLUSTER_MEM_NAME);
146 goto out;
147 }
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);
154
155 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
156 if (mtp == NULL) {
157 warnx("memstat_mtl_find: malloc type %s not found",
158 MBUF_TAG_MEM_NAME);
159 goto out;
160 }
161 tag_bytes = memstat_get_bytes(mtp);
162
163 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
164 if (mtp == NULL) {
165 warnx("memstat_mtl_find: zone %s not found",
166 MBUF_JUMBOP_MEM_NAME);
167 goto out;
168 }
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);
175
176 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
177 if (mtp == NULL) {
178 warnx("memstat_mtl_find: zone %s not found",
179 MBUF_JUMBO9_MEM_NAME);
180 goto out;
181 }
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);
188
189 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
190 if (mtp == NULL) {
191 warnx("memstat_mtl_find: zone %s not found",
192 MBUF_JUMBO16_MEM_NAME);
193 goto out;
194 }
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);
201
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);
205
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);
210
211 printf("%ju/%ju mbuf+clusters out of packet secondary zone in use "
212 "(current/cache)\n",
213 packet_count, packet_free);
214
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);
219
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,
223 jumbo9_limit);
224
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,
228 jumbo16_limit);
229
230 #if 0
231 printf("%ju mbuf tags in use\n", tag_count);
232 #endif
233
234 /*-
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.
240 * - m_tag memory
241 * This avoids counting the clusters attached to packets in the cache.
242 * This currently excludes sf_buf space.
243 */
244 bytes_inuse =
245 mbuf_bytes + /* straight mbuf memory */
246 packet_bytes + /* mbufs in packets */
247 (packet_count * cluster_size) + /* clusters in packets */
248 /* other clusters */
249 ((cluster_count - packet_count - packet_free) * cluster_size) +
250 tag_bytes +
251 (jumbop_count * jumbop_size) + /* jumbo clusters */
252 (jumbo9_count * jumbo9_size) +
253 (jumbo16_count * jumbo16_size);
254
255 /*
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.
262 */
263 bytes_incache =
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);
271
272 /*
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.
276 */
277 bytes_total = bytes_inuse + bytes_incache;
278
279 printf("%juK/%juK/%juK bytes allocated to network "
280 "(current/cache/total)\n", bytes_inuse / 1024,
281 bytes_incache / 1024, bytes_total / 1024);
282
283 printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/"
284 "mbuf+clusters)\n", mbuf_failures, cluster_failures,
285 packet_failures);
286 printf("%ju/%ju/%ju requests for mbufs delayed (mbufs/clusters/"
287 "mbuf+clusters)\n", mbuf_sleeps, cluster_sleeps,
288 packet_sleeps);
289
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);
296
297 mlen = sizeof(nsfbufs);
298 if (live &&
299 sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 &&
300 sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen,
301 NULL, 0) == 0 &&
302 sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen,
303 NULL, 0) == 0)
304 printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
305 nsfbufsused, nsfbufspeak, nsfbufs);
306
307 if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat),
308 kread_counters) != 0)
309 goto out;
310
311 printf("%ju requests for sfbufs denied\n",
312 (uintmax_t)sfstat.sf_allocfail);
313 printf("%ju requests for sfbufs delayed\n",
314 (uintmax_t)sfstat.sf_allocwait);
315 printf("%ju requests for I/O initiated by sendfile\n",
316 (uintmax_t)sfstat.sf_iocnt);
317 out:
318 memstat_mtl_free(mtlp);
319 }
320