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source: rtems-libbsd/freebsd-userspace/commands/usr.bin/netstat/mbuf.c @ 0fa7dab

4.1155-freebsd-126-freebsd-12freebsd-9.3

Last change on this file since 0fa7dab was 0fa7dab, checked in by Joel Sherrill <joel.sherrill@…>, on 10/22/12 at 15:53:17
route command: Clean up kernal symbol accesses
Property mode set to `100644`
File size: 10.5 KB

Line
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("$FreeBSD$");
44
45	#include <sys/param.h>
46	#ifdef __rtems__
47	#include <stdint.h>
48	#include <freebsd/sys/mbuf.h>
49	#include <freebsd/sys/protosw.h>
50	#else
51	#include <sys/mbuf.h>
52	#include <sys/protosw.h>
53	#endif
54	#include <sys/socket.h>
55	#include <sys/socketvar.h>
56	#include <sys/sysctl.h>
57
58	#include <err.h>
59	#include <kvm.h>
60	#include <memstat.h>
61	#include <stdint.h>
62	#include <stdio.h>
63	#include <stdlib.h>
64	#include <string.h>
65	#include "netstat.h"
66
67	/*
68	* Print mbuf statistics.
69	*/
70	void
71	mbpr(void *kvmd, u_long mbaddr)
72	{
73	struct memory_type_list *mtlp;
74	struct memory_type *mtp;
75	uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size;
76	uintmax_t cluster_count, cluster_bytes, cluster_limit, cluster_free;
77	uintmax_t cluster_failures, cluster_size;
78	uintmax_t packet_count, packet_bytes, packet_free, packet_failures;
79	uintmax_t tag_count, tag_bytes;
80	uintmax_t jumbop_count, jumbop_bytes, jumbop_limit, jumbop_free;
81	uintmax_t jumbop_failures, jumbop_size;
82	uintmax_t jumbo9_count, jumbo9_bytes, jumbo9_limit, jumbo9_free;
83	uintmax_t jumbo9_failures, jumbo9_size;
84	uintmax_t jumbo16_count, jumbo16_bytes, jumbo16_limit, jumbo16_free;
85	uintmax_t jumbo16_failures, jumbo16_size;
86	uintmax_t bytes_inuse, bytes_incache, bytes_total;
87	int nsfbufs, nsfbufspeak, nsfbufsused;
88	struct mbstat mbstat;
89	size_t mlen;
90	int error;
91
92	mtlp = memstat_mtl_alloc();
93	if (mtlp == NULL) {
94	warn("memstat_mtl_alloc");
95	return;
96	}
97
98	/*
99	* Use memstat_*_all() because some mbuf-related memory is in uma(9),
100	* and some malloc(9).
101	*/
102	if (live) {
103	if (memstat_sysctl_all(mtlp, 0) < 0) {
104	warnx("memstat_sysctl_all: %s",
105	memstat_strerror(memstat_mtl_geterror(mtlp)));
106	goto out;
107	}
108	} else {
109	#ifndef __rtems__
110	if (memstat_kvm_all(mtlp, kvmd) < 0) {
111	error = memstat_mtl_geterror(mtlp);
112	if (error == MEMSTAT_ERROR_KVM)
113	warnx("memstat_kvm_all: %s",
114	kvm_geterr(kvmd));
115	else
116	warnx("memstat_kvm_all: %s",
117	memstat_strerror(error));
118	goto out;
119	}
120	#else
121	;
122	#endif
123	}
124
125	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME);
126	if (mtp == NULL) {
127	warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME);
128	goto out;
129	}
130	mbuf_count = memstat_get_count(mtp);
131	mbuf_bytes = memstat_get_bytes(mtp);
132	mbuf_free = memstat_get_free(mtp);
133	mbuf_failures = memstat_get_failures(mtp);
134	mbuf_size = memstat_get_size(mtp);
135
136	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME);
137	if (mtp == NULL) {
138	warnx("memstat_mtl_find: zone %s not found",
139	MBUF_PACKET_MEM_NAME);
140	goto out;
141	}
142	packet_count = memstat_get_count(mtp);
143	packet_bytes = memstat_get_bytes(mtp);
144	packet_free = memstat_get_free(mtp);
145	packet_failures = memstat_get_failures(mtp);
146
147	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME);
148	if (mtp == NULL) {
149	warnx("memstat_mtl_find: zone %s not found",
150	MBUF_CLUSTER_MEM_NAME);
151	goto out;
152	}
153	cluster_count = memstat_get_count(mtp);
154	cluster_bytes = memstat_get_bytes(mtp);
155	cluster_limit = memstat_get_countlimit(mtp);
156	cluster_free = memstat_get_free(mtp);
157	cluster_failures = memstat_get_failures(mtp);
158	cluster_size = memstat_get_size(mtp);
159
160	mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME);
161	if (mtp == NULL) {
162	warnx("memstat_mtl_find: malloc type %s not found",
163	MBUF_TAG_MEM_NAME);
164	goto out;
165	}
166	tag_count = memstat_get_count(mtp);
167	tag_bytes = memstat_get_bytes(mtp);
168
169	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME);
170	if (mtp == NULL) {
171	warnx("memstat_mtl_find: zone %s not found",
172	MBUF_JUMBOP_MEM_NAME);
173	goto out;
174	}
175	jumbop_count = memstat_get_count(mtp);
176	jumbop_bytes = memstat_get_bytes(mtp);
177	jumbop_limit = memstat_get_countlimit(mtp);
178	jumbop_free = memstat_get_free(mtp);
179	jumbop_failures = memstat_get_failures(mtp);
180	jumbop_size = memstat_get_size(mtp);
181
182	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME);
183	if (mtp == NULL) {
184	warnx("memstat_mtl_find: zone %s not found",
185	MBUF_JUMBO9_MEM_NAME);
186	goto out;
187	}
188	jumbo9_count = memstat_get_count(mtp);
189	jumbo9_bytes = memstat_get_bytes(mtp);
190	jumbo9_limit = memstat_get_countlimit(mtp);
191	jumbo9_free = memstat_get_free(mtp);
192	jumbo9_failures = memstat_get_failures(mtp);
193	jumbo9_size = memstat_get_size(mtp);
194
195	mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME);
196	if (mtp == NULL) {
197	warnx("memstat_mtl_find: zone %s not found",
198	MBUF_JUMBO16_MEM_NAME);
199	goto out;
200	}
201	jumbo16_count = memstat_get_count(mtp);
202	jumbo16_bytes = memstat_get_bytes(mtp);
203	jumbo16_limit = memstat_get_countlimit(mtp);
204	jumbo16_free = memstat_get_free(mtp);
205	jumbo16_failures = memstat_get_failures(mtp);
206	jumbo16_size = memstat_get_size(mtp);
207
208	printf("%ju/%ju/%ju mbufs in use (current/cache/total)\n",
209	mbuf_count + packet_count, mbuf_free + packet_free,
210	mbuf_count + packet_count + mbuf_free + packet_free);
211
212	printf("%ju/%ju/%ju/%ju mbuf clusters in use "
213	"(current/cache/total/max)\n",
214	cluster_count - packet_free, cluster_free + packet_free,
215	cluster_count + cluster_free, cluster_limit);
216
217	printf("%ju/%ju mbuf+clusters out of packet secondary zone in use "
218	"(current/cache)\n",
219	packet_count, packet_free);
220
221	printf("%ju/%ju/%ju/%ju %juk (page size) jumbo clusters in use "
222	"(current/cache/total/max)\n",
223	jumbop_count, jumbop_free, jumbop_count + jumbop_free,
224	jumbop_limit, jumbop_size / 1024);
225
226	printf("%ju/%ju/%ju/%ju 9k jumbo clusters in use "
227	"(current/cache/total/max)\n",
228	jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free,
229	jumbo9_limit);
230
231	printf("%ju/%ju/%ju/%ju 16k jumbo clusters in use "
232	"(current/cache/total/max)\n",
233	jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free,
234	jumbo16_limit);
235
236	#if 0
237	printf("%ju mbuf tags in use\n", tag_count);
238	#endif
239
240	/*-
241	* Calculate in-use bytes as:
242	* - straight mbuf memory
243	* - mbuf memory in packets
244	* - the clusters attached to packets
245	* - and the rest of the non-packet-attached clusters.
246	* - m_tag memory
247	* This avoids counting the clusters attached to packets in the cache.
248	* This currently excludes sf_buf space.
249	*/
250	bytes_inuse =
251	mbuf_bytes + /* straight mbuf memory */
252	packet_bytes + /* mbufs in packets */
253	(packet_count * cluster_size) + /* clusters in packets */
254	/* other clusters */
255	((cluster_count - packet_count - packet_free) * cluster_size) +
256	tag_bytes +
257	(jumbop_count * jumbop_size) + /* jumbo clusters */
258	(jumbo9_count * jumbo9_size) +
259	(jumbo16_count * jumbo16_size);
260
261	/*
262	* Calculate in-cache bytes as:
263	* - cached straught mbufs
264	* - cached packet mbufs
265	* - cached packet clusters
266	* - cached straight clusters
267	* This currently excludes sf_buf space.
268	*/
269	bytes_incache =
270	(mbuf_free * mbuf_size) + /* straight free mbufs */
271	(packet_free * mbuf_size) + /* mbufs in free packets */
272	(packet_free * cluster_size) + /* clusters in free packets */
273	(cluster_free * cluster_size) + /* free clusters */
274	(jumbop_free * jumbop_size) + /* jumbo clusters */
275	(jumbo9_free * jumbo9_size) +
276	(jumbo16_free * jumbo16_size);
277
278	/*
279	* Total is bytes in use + bytes in cache. This doesn't take into
280	* account various other misc data structures, overhead, etc, but
281	* gives the user something useful despite that.
282	*/
283	bytes_total = bytes_inuse + bytes_incache;
284
285	printf("%juK/%juK/%juK bytes allocated to network "
286	"(current/cache/total)\n", bytes_inuse / 1024,
287	bytes_incache / 1024, bytes_total / 1024);
288
289	printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/"
290	"mbuf+clusters)\n", mbuf_failures, cluster_failures,
291	packet_failures);
292
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	if (live) {
298	mlen = sizeof(nsfbufs);
299	if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL,
300	0) &&
301	!sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused,
302	&mlen, NULL, 0) &&
303	!sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak,
304	&mlen, NULL, 0))
305	printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
306	nsfbufsused, nsfbufspeak, nsfbufs);
307	mlen = sizeof(mbstat);
308	if (sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) {
309	warn("kern.ipc.mbstat");
310	goto out;
311	}
312	} else {
313	if (kread(mbaddr, (char *)&mbstat, sizeof mbstat) != 0)
314	goto out;
315	}
316	printf("%lu requests for sfbufs denied\n", mbstat.sf_allocfail);
317	printf("%lu requests for sfbufs delayed\n", mbstat.sf_allocwait);
318	printf("%lu requests for I/O initiated by sendfile\n",
319	mbstat.sf_iocnt);
320	printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
321	out:
322	memstat_mtl_free(mtlp);
323	}

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