1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1983, 1988, 1993
5 * The Regents of the University of California.
6 * Copyright (c) 2005 Robert N. M. Watson
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include <sys/param.h>
39 #include <sys/mbuf.h>
40 #include <sys/protosw.h>
41 #include <sys/sf_buf.h>
42 #include <sys/socket.h>
43 #include <sys/socketvar.h>
44 #include <sys/sysctl.h>
45
46 #include <kvm.h>
47 #include <memstat.h>
48 #include <stdint.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #include <stdbool.h>
52 #include <string.h>
53 #include <libxo/xo.h>
54 #include "netstat.h"
55
56 /*
57 * Print mbuf statistics.
58 */
59 void
mbpr(void * kvmd,u_long mbaddr)60 mbpr(void *kvmd, u_long mbaddr)
61 {
62 struct memory_type_list *mtlp;
63 struct memory_type *mtp;
64 uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size;
65 uintmax_t mbuf_sleeps;
66 uintmax_t cluster_count, cluster_limit, cluster_free;
67 uintmax_t cluster_failures, cluster_size, cluster_sleeps;
68 uintmax_t packet_count, packet_bytes, packet_free, packet_failures;
69 uintmax_t packet_sleeps;
70 uintmax_t tag_bytes;
71 uintmax_t jumbop_count, jumbop_limit, jumbop_free;
72 uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size;
73 uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free;
74 uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size;
75 uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free;
76 uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size;
77 uintmax_t bytes_inuse, bytes_incache, bytes_total;
78 int nsfbufs, nsfbufspeak, nsfbufsused;
79 struct sfstat sfstat;
80 size_t mlen;
81 int error;
82
83 mtlp = memstat_mtl_alloc();
84 if (mtlp == NULL) {
85 xo_warn("memstat_mtl_alloc");
86 return;
87 }
88
89 /*
90 * Use memstat_*_all() because some mbuf-related memory is in uma(9),
91 * and some malloc(9).
92 */
93 if (live) {
94 if (memstat_sysctl_all(mtlp, 0) < 0) {
95 xo_warnx("memstat_sysctl_all: %s",
96 memstat_strerror(memstat_mtl_geterror(mtlp)));
97 goto out;
98 }
99 } else {
100 if (memstat_kvm_all(mtlp, kvmd) < 0) {
101 error = memstat_mtl_geterror(mtlp);
102 if (error == MEMSTAT_ERROR_KVM)
103 xo_warnx("memstat_kvm_all: %s",
104 kvm_geterr(kvmd));
105 else
106 xo_warnx("memstat_kvm_all: %s",
107 memstat_strerror(error));
108 goto out;
109 }
110 }
111
112 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
113 if (mtp == NULL) {
114 xo_warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
115 goto out;
116 }
117 mbuf_count = memstat_get_count(mtp);
118 mbuf_bytes = memstat_get_bytes(mtp);
119 mbuf_free = memstat_get_free(mtp);
120 mbuf_failures = memstat_get_failures(mtp);
121 mbuf_sleeps = memstat_get_sleeps(mtp);
122 mbuf_size = memstat_get_size(mtp);
123
124 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
125 if (mtp == NULL) {
126 xo_warnx("memstat_mtl_find: zone %s not found",
127 MBUF_PACKET_MEM_NAME);
128 goto out;
129 }
130 packet_count = memstat_get_count(mtp);
131 packet_bytes = memstat_get_bytes(mtp);
132 packet_free = memstat_get_free(mtp);
133 packet_sleeps = memstat_get_sleeps(mtp);
134 packet_failures = memstat_get_failures(mtp);
135
136 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
137 if (mtp == NULL) {
138 xo_warnx("memstat_mtl_find: zone %s not found",
139 MBUF_CLUSTER_MEM_NAME);
140 goto out;
141 }
142 cluster_count = memstat_get_count(mtp);
143 cluster_limit = memstat_get_countlimit(mtp);
144 cluster_free = memstat_get_free(mtp);
145 cluster_failures = memstat_get_failures(mtp);
146 cluster_sleeps = memstat_get_sleeps(mtp);
147 cluster_size = memstat_get_size(mtp);
148
149 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
150 if (mtp == NULL) {
151 xo_warnx("memstat_mtl_find: malloc type %s not found",
152 MBUF_TAG_MEM_NAME);
153 goto out;
154 }
155 tag_bytes = memstat_get_bytes(mtp);
156
157 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
158 if (mtp == NULL) {
159 xo_warnx("memstat_mtl_find: zone %s not found",
160 MBUF_JUMBOP_MEM_NAME);
161 goto out;
162 }
163 jumbop_count = memstat_get_count(mtp);
164 jumbop_limit = memstat_get_countlimit(mtp);
165 jumbop_free = memstat_get_free(mtp);
166 jumbop_failures = memstat_get_failures(mtp);
167 jumbop_sleeps = memstat_get_sleeps(mtp);
168 jumbop_size = memstat_get_size(mtp);
169
170 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
171 if (mtp == NULL) {
172 xo_warnx("memstat_mtl_find: zone %s not found",
173 MBUF_JUMBO9_MEM_NAME);
174 goto out;
175 }
176 jumbo9_count = memstat_get_count(mtp);
177 jumbo9_limit = memstat_get_countlimit(mtp);
178 jumbo9_free = memstat_get_free(mtp);
179 jumbo9_failures = memstat_get_failures(mtp);
180 jumbo9_sleeps = memstat_get_sleeps(mtp);
181 jumbo9_size = memstat_get_size(mtp);
182
183 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
184 if (mtp == NULL) {
185 xo_warnx("memstat_mtl_find: zone %s not found",
186 MBUF_JUMBO16_MEM_NAME);
187 goto out;
188 }
189 jumbo16_count = memstat_get_count(mtp);
190 jumbo16_limit = memstat_get_countlimit(mtp);
191 jumbo16_free = memstat_get_free(mtp);
192 jumbo16_failures = memstat_get_failures(mtp);
193 jumbo16_sleeps = memstat_get_sleeps(mtp);
194 jumbo16_size = memstat_get_size(mtp);
195
196 xo_open_container("mbuf-statistics");
197
198 xo_emit("{:mbuf-current/%ju}/{:mbuf-cache/%ju}/{:mbuf-total/%ju} "
199 "{N:mbufs in use (current\\/cache\\/total)}\n",
200 mbuf_count + packet_count, mbuf_free + packet_free,
201 mbuf_count + packet_count + mbuf_free + packet_free);
202
203 xo_emit("{:cluster-current/%ju}/{:cluster-cache/%ju}/"
204 "{:cluster-total/%ju}/{:cluster-max/%ju} "
205 "{N:mbuf clusters in use (current\\/cache\\/total\\/max)}\n",
206 cluster_count - packet_free, cluster_free + packet_free,
207 cluster_count + cluster_free, cluster_limit);
208
209 xo_emit("{:packet-count/%ju}/{:packet-free/%ju} "
210 "{N:mbuf+clusters out of packet secondary zone in use "
211 "(current\\/cache)}\n",
212 packet_count, packet_free);
213
214 xo_emit("{:jumbo-count/%ju}/{:jumbo-cache/%ju}/{:jumbo-total/%ju}/"
215 "{:jumbo-max/%ju} {:jumbo-page-size/%ju}{U:k} {N:(page size)} "
216 "{N:jumbo clusters in use (current\\/cache\\/total\\/max)}\n",
217 jumbop_count, jumbop_free, jumbop_count + jumbop_free,
218 jumbop_limit, jumbop_size / 1024);
219
220 xo_emit("{:jumbo9-count/%ju}/{:jumbo9-cache/%ju}/"
221 "{:jumbo9-total/%ju}/{:jumbo9-max/%ju} "
222 "{N:9k jumbo clusters in use (current\\/cache\\/total\\/max)}\n",
223 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free,
224 jumbo9_limit);
225
226 xo_emit("{:jumbo16-count/%ju}/{:jumbo16-cache/%ju}/"
227 "{:jumbo16-total/%ju}/{:jumbo16-limit/%ju} "
228 "{N:16k jumbo clusters in use (current\\/cache\\/total\\/max)}\n",
229 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free,
230 jumbo16_limit);
231
232 #if 0
233 xo_emit("{:tag-count/%ju} {N:mbuf tags in use}\n", tag_count);
234 #endif
235
236 /*-
237 * Calculate in-use bytes as:
238 * - straight mbuf memory
239 * - mbuf memory in packets
240 * - the clusters attached to packets
241 * - and the rest of the non-packet-attached clusters.
242 * - m_tag memory
243 * This avoids counting the clusters attached to packets in the cache.
244 * This currently excludes sf_buf space.
245 */
246 bytes_inuse =
247 mbuf_bytes + /* straight mbuf memory */
248 packet_bytes + /* mbufs in packets */
249 (packet_count * cluster_size) + /* clusters in packets */
250 /* other clusters */
251 ((cluster_count - packet_count - packet_free) * cluster_size) +
252 tag_bytes +
253 (jumbop_count * jumbop_size) + /* jumbo clusters */
254 (jumbo9_count * jumbo9_size) +
255 (jumbo16_count * jumbo16_size);
256
257 /*
258 * Calculate in-cache bytes as:
259 * - cached straught mbufs
260 * - cached packet mbufs
261 * - cached packet clusters
262 * - cached straight clusters
263 * This currently excludes sf_buf space.
264 */
265 bytes_incache =
266 (mbuf_free * mbuf_size) + /* straight free mbufs */
267 (packet_free * mbuf_size) + /* mbufs in free packets */
268 (packet_free * cluster_size) + /* clusters in free packets */
269 (cluster_free * cluster_size) + /* free clusters */
270 (jumbop_free * jumbop_size) + /* jumbo clusters */
271 (jumbo9_free * jumbo9_size) +
272 (jumbo16_free * jumbo16_size);
273
274 /*
275 * Total is bytes in use + bytes in cache. This doesn't take into
276 * account various other misc data structures, overhead, etc, but
277 * gives the user something useful despite that.
278 */
279 bytes_total = bytes_inuse + bytes_incache;
280
281 xo_emit("{:bytes-in-use/%ju}{U:K}/{:bytes-in-cache/%ju}{U:K}/"
282 "{:bytes-total/%ju}{U:K} "
283 "{N:bytes allocated to network (current\\/cache\\/total)}\n",
284 bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024);
285
286 xo_emit("{:mbuf-failures/%ju}/{:cluster-failures/%ju}/"
287 "{:packet-failures/%ju} {N:requests for mbufs denied "
288 "(mbufs\\/clusters\\/mbuf+clusters)}\n",
289 mbuf_failures, cluster_failures, packet_failures);
290 xo_emit("{:mbuf-sleeps/%ju}/{:cluster-sleeps/%ju}/{:packet-sleeps/%ju} "
291 "{N:requests for mbufs delayed "
292 "(mbufs\\/clusters\\/mbuf+clusters)}\n",
293 mbuf_sleeps, cluster_sleeps, packet_sleeps);
294
295 xo_emit("{:jumbop-sleeps/%ju}/{:jumbo9-sleeps/%ju}/"
296 "{:jumbo16-sleeps/%ju} {N:/requests for jumbo clusters delayed "
297 "(%juk\\/9k\\/16k)}\n",
298 jumbop_sleeps, jumbo9_sleeps, jumbo16_sleeps, jumbop_size / 1024);
299 xo_emit("{:jumbop-failures/%ju}/{:jumbo9-failures/%ju}/"
300 "{:jumbo16-failures/%ju} {N:/requests for jumbo clusters denied "
301 "(%juk\\/9k\\/16k)}\n",
302 jumbop_failures, jumbo9_failures, jumbo16_failures,
303 jumbop_size / 1024);
304
305 mlen = sizeof(nsfbufs);
306 if (live &&
307 sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 &&
308 sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen,
309 NULL, 0) == 0 &&
310 sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen,
311 NULL, 0) == 0)
312 xo_emit("{:nsfbufs-current/%d}/{:nsfbufs-peak/%d}/"
313 "{:nsfbufs/%d} "
314 "{N:sfbufs in use (current\\/peak\\/max)}\n",
315 nsfbufsused, nsfbufspeak, nsfbufs);
316
317 if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat),
318 kread_counters) != 0)
319 goto out;
320
321 xo_emit("{:sendfile-syscalls/%ju} {N:sendfile syscalls}\n",
322 (uintmax_t)sfstat.sf_syscalls);
323 xo_emit("{:sendfile-no-io/%ju} "
324 "{N:sendfile syscalls completed without I\\/O request}\n",
325 (uintmax_t)sfstat.sf_noiocnt);
326 xo_emit("{:sendfile-io-count/%ju} "
327 "{N:requests for I\\/O initiated by sendfile}\n",
328 (uintmax_t)sfstat.sf_iocnt);
329 xo_emit("{:sendfile-pages-sent/%ju} "
330 "{N:pages read by sendfile as part of a request}\n",
331 (uintmax_t)sfstat.sf_pages_read);
332 xo_emit("{:sendfile-pages-valid/%ju} "
333 "{N:pages were valid at time of a sendfile request}\n",
334 (uintmax_t)sfstat.sf_pages_valid);
335 xo_emit("{:sendfile-pages-bogus/%ju} "
336 "{N:pages were valid and substituted to bogus page}\n",
337 (uintmax_t)sfstat.sf_pages_bogus);
338 xo_emit("{:sendfile-requested-readahead/%ju} "
339 "{N:pages were requested for read ahead by applications}\n",
340 (uintmax_t)sfstat.sf_rhpages_requested);
341 xo_emit("{:sendfile-readahead/%ju} "
342 "{N:pages were read ahead by sendfile}\n",
343 (uintmax_t)sfstat.sf_rhpages_read);
344 xo_emit("{:sendfile-busy-encounters/%ju} "
345 "{N:times sendfile encountered an already busy page}\n",
346 (uintmax_t)sfstat.sf_busy);
347 xo_emit("{:sfbufs-alloc-failed/%ju} {N:requests for sfbufs denied}\n",
348 (uintmax_t)sfstat.sf_allocfail);
349 xo_emit("{:sfbufs-alloc-wait/%ju} {N:requests for sfbufs delayed}\n",
350 (uintmax_t)sfstat.sf_allocwait);
351 out:
352 xo_close_container("mbuf-statistics");
353 memstat_mtl_free(mtlp);
354 }
355