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 #include <sys/mbuf.h> 47 #include <sys/protosw.h> 48 #include <sys/socket.h> 49 #include <sys/sysctl.h> 50 51 #include <err.h> 52 #include <kvm.h> 53 #include <memstat.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include "netstat.h" 58 59 /* 60 * Print mbuf statistics. 61 */ 62 void 63 mbpr(void *kvmd, u_long mbaddr) 64 { 65 struct memory_type_list *mtlp; 66 struct memory_type *mtp; 67 u_int64_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; 68 u_int64_t cluster_count, cluster_bytes, cluster_limit, cluster_free; 69 u_int64_t cluster_failures, cluster_size; 70 u_int64_t packet_count, packet_bytes, packet_free, packet_failures; 71 u_int64_t tag_count, tag_bytes; 72 u_int64_t jumbop_count, jumbop_bytes, jumbop_limit, jumbop_free; 73 u_int64_t jumbop_failures, jumbop_size; 74 u_int64_t jumbo9_count, jumbo9_bytes, jumbo9_limit, jumbo9_free; 75 u_int64_t jumbo9_failures, jumbo9_size; 76 u_int64_t jumbo16_count, jumbo16_bytes, jumbo16_limit, jumbo16_free; 77 u_int64_t jumbo16_failures, jumbo16_size; 78 u_int64_t bytes_inuse, bytes_incache, bytes_total; 79 int nsfbufs, nsfbufspeak, nsfbufsused; 80 struct mbstat mbstat; 81 size_t mlen; 82 int error, live; 83 84 live = (kvmd == NULL); 85 mtlp = memstat_mtl_alloc(); 86 if (mtlp == NULL) { 87 warn("memstat_mtl_alloc"); 88 return; 89 } 90 91 /* 92 * Use memstat_*_all() because some mbuf-related memory is in uma(9), 93 * and some malloc(9). 94 */ 95 if (live) { 96 if (memstat_sysctl_all(mtlp, 0) < 0) { 97 warnx("memstat_sysctl_all: %s", 98 memstat_strerror(memstat_mtl_geterror(mtlp))); 99 goto out; 100 } 101 } else { 102 if (memstat_kvm_all(mtlp, kvmd) < 0) { 103 error = memstat_mtl_geterror(mtlp); 104 if (error == MEMSTAT_ERROR_KVM) 105 warnx("memstat_kvm_all: %s", 106 kvm_geterr(kvmd)); 107 else 108 warnx("memstat_kvm_all: %s", 109 memstat_strerror(error)); 110 goto out; 111 } 112 } 113 114 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); 115 if (mtp == NULL) { 116 warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME); 117 goto out; 118 } 119 mbuf_count = memstat_get_count(mtp); 120 mbuf_bytes = memstat_get_bytes(mtp); 121 mbuf_free = memstat_get_free(mtp); 122 mbuf_failures = memstat_get_failures(mtp); 123 mbuf_size = memstat_get_size(mtp); 124 125 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME); 126 if (mtp == NULL) { 127 warnx("memstat_mtl_find: zone %s not found", 128 MBUF_PACKET_MEM_NAME); 129 goto out; 130 } 131 packet_count = memstat_get_count(mtp); 132 packet_bytes = memstat_get_bytes(mtp); 133 packet_free = memstat_get_free(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 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_bytes = memstat_get_bytes(mtp); 144 cluster_limit = memstat_get_countlimit(mtp); 145 cluster_free = memstat_get_free(mtp); 146 cluster_failures = memstat_get_failures(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 warnx("memstat_mtl_find: malloc type %s not found", 152 MBUF_TAG_MEM_NAME); 153 goto out; 154 } 155 tag_count = memstat_get_count(mtp); 156 tag_bytes = memstat_get_bytes(mtp); 157 158 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME); 159 if (mtp == NULL) { 160 warnx("memstat_mtl_find: zone %s not found", 161 MBUF_JUMBOP_MEM_NAME); 162 goto out; 163 } 164 jumbop_count = memstat_get_count(mtp); 165 jumbop_bytes = memstat_get_bytes(mtp); 166 jumbop_limit = memstat_get_countlimit(mtp); 167 jumbop_free = memstat_get_free(mtp); 168 jumbop_failures = memstat_get_failures(mtp); 169 jumbop_size = memstat_get_size(mtp); 170 171 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME); 172 if (mtp == NULL) { 173 warnx("memstat_mtl_find: zone %s not found", 174 MBUF_JUMBO9_MEM_NAME); 175 goto out; 176 } 177 jumbo9_count = memstat_get_count(mtp); 178 jumbo9_bytes = memstat_get_bytes(mtp); 179 jumbo9_limit = memstat_get_countlimit(mtp); 180 jumbo9_free = memstat_get_free(mtp); 181 jumbo9_failures = memstat_get_failures(mtp); 182 jumbo9_size = memstat_get_size(mtp); 183 184 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME); 185 if (mtp == NULL) { 186 warnx("memstat_mtl_find: zone %s not found", 187 MBUF_JUMBO16_MEM_NAME); 188 goto out; 189 } 190 jumbo16_count = memstat_get_count(mtp); 191 jumbo16_bytes = memstat_get_bytes(mtp); 192 jumbo16_limit = memstat_get_countlimit(mtp); 193 jumbo16_free = memstat_get_free(mtp); 194 jumbo16_failures = memstat_get_failures(mtp); 195 jumbo16_size = memstat_get_size(mtp); 196 197 printf("%llu/%llu/%llu mbufs in use (current/cache/total)\n", 198 mbuf_count + packet_count, mbuf_free + packet_free, 199 mbuf_count + packet_count + mbuf_free + packet_free); 200 201 printf("%llu/%llu/%llu/%llu mbuf clusters in use " 202 "(current/cache/total/max)\n", 203 cluster_count - packet_free, cluster_free + packet_free, 204 cluster_count + cluster_free, cluster_limit); 205 206 printf("%llu/%llu mbuf+clusters out of packet secondary zone in use " 207 "(current/cache)\n", 208 packet_count, packet_free); 209 210 printf("%llu/%llu/%llu/%llu %lluk (page size) jumbo clusters in use " 211 "(current/cache/total/max)\n", 212 jumbop_count, jumbop_free, jumbop_count + jumbop_free, 213 jumbop_limit, jumbop_size / 1024); 214 215 printf("%llu/%llu/%llu/%llu 9k jumbo clusters in use " 216 "(current/cache/total/max)\n", 217 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, 218 jumbo9_limit); 219 220 printf("%llu/%llu/%llu/%llu 16k jumbo clusters in use " 221 "(current/cache/total/max)\n", 222 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, 223 jumbo16_limit); 224 225 #if 0 226 printf("%llu mbuf tags in use\n", tag_count); 227 #endif 228 229 /*- 230 * Calculate in-use bytes as: 231 * - straight mbuf memory 232 * - mbuf memory in packets 233 * - the clusters attached to packets 234 * - and the rest of the non-packet-attached clusters. 235 * - m_tag memory 236 * This avoids counting the clusters attached to packets in the cache. 237 * This currently excludes sf_buf space. 238 */ 239 bytes_inuse = 240 mbuf_bytes + /* straight mbuf memory */ 241 packet_bytes + /* mbufs in packets */ 242 (packet_count * cluster_size) + /* clusters in packets */ 243 /* other clusters */ 244 ((cluster_count - packet_count - packet_free) * cluster_size) + 245 tag_bytes + 246 (jumbop_count * jumbop_size) + /* jumbo clusters */ 247 (jumbo9_count * jumbo9_size) + 248 (jumbo16_count * jumbo16_size); 249 250 /* 251 * Calculate in-cache bytes as: 252 * - cached straught mbufs 253 * - cached packet mbufs 254 * - cached packet clusters 255 * - cached straight clusters 256 * This currently excludes sf_buf space. 257 */ 258 bytes_incache = 259 (mbuf_free * mbuf_size) + /* straight free mbufs */ 260 (packet_free * mbuf_size) + /* mbufs in free packets */ 261 (packet_free * cluster_size) + /* clusters in free packets */ 262 (cluster_free * cluster_size) + /* free clusters */ 263 (jumbop_free * jumbop_size) + /* jumbo clusters */ 264 (jumbo9_free * jumbo9_size) + 265 (jumbo16_free * jumbo16_size); 266 267 /* 268 * Total is bytes in use + bytes in cache. This doesn't take into 269 * account various other misc data structures, overhead, etc, but 270 * gives the user something useful despite that. 271 */ 272 bytes_total = bytes_inuse + bytes_incache; 273 274 printf("%lluK/%lluK/%lluK bytes allocated to network " 275 "(current/cache/total)\n", bytes_inuse / 1024, 276 bytes_incache / 1024, bytes_total / 1024); 277 278 printf("%llu/%llu/%llu requests for mbufs denied (mbufs/clusters/" 279 "mbuf+clusters)\n", mbuf_failures, cluster_failures, 280 packet_failures); 281 282 printf("%llu/%llu/%llu requests for jumbo clusters denied " 283 "(%lluk/9k/16k)\n", jumbop_failures, jumbo9_failures, 284 jumbo16_failures, jumbop_size / 1024); 285 286 if (live) { 287 mlen = sizeof(nsfbufs); 288 if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 289 0) && 290 !sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, 291 &mlen, NULL, 0) && 292 !sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, 293 &mlen, NULL, 0)) 294 printf("%d/%d/%d sfbufs in use (current/peak/max)\n", 295 nsfbufsused, nsfbufspeak, nsfbufs); 296 mlen = sizeof(mbstat); 297 if (sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) { 298 warn("kern.ipc.mbstat"); 299 goto out; 300 } 301 } else { 302 if (kread(mbaddr, (char *)&mbstat, sizeof mbstat)) 303 goto out; 304 } 305 printf("%lu requests for sfbufs denied\n", mbstat.sf_allocfail); 306 printf("%lu requests for sfbufs delayed\n", mbstat.sf_allocwait); 307 printf("%lu requests for I/O initiated by sendfile\n", 308 mbstat.sf_iocnt); 309 printf("%lu calls to protocol drain routines\n", mbstat.m_drain); 310 out: 311 memstat_mtl_free(mtlp); 312 } 313