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/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 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 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(sfstat); 308 if (sysctlbyname("kern.ipc.sfstat", &sfstat, &mlen, NULL, 0)) { 309 warn("kern.ipc.sfstat"); 310 goto out; 311 } 312 } else { 313 if (kread_counters(mbaddr, (char *)&sfstat, sizeof sfstat) != 0) 314 goto out; 315 } 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); 322 out: 323 memstat_mtl_free(mtlp); 324 } 325