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 <stdbool.h> 60 #include <string.h> 61 #include <libxo/xo.h> 62 #include "netstat.h" 63 64 /* 65 * Print mbuf statistics. 66 */ 67 void 68 mbpr(void *kvmd, u_long mbaddr) 69 { 70 struct memory_type_list *mtlp; 71 struct memory_type *mtp; 72 uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; 73 uintmax_t mbuf_sleeps; 74 uintmax_t cluster_count, cluster_limit, cluster_free; 75 uintmax_t cluster_failures, cluster_size, cluster_sleeps; 76 uintmax_t packet_count, packet_bytes, packet_free, packet_failures; 77 uintmax_t packet_sleeps; 78 uintmax_t tag_bytes; 79 uintmax_t jumbop_count, jumbop_limit, jumbop_free; 80 uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size; 81 uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free; 82 uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size; 83 uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free; 84 uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size; 85 uintmax_t bytes_inuse, bytes_incache, bytes_total; 86 int nsfbufs, nsfbufspeak, nsfbufsused; 87 struct sfstat sfstat; 88 size_t mlen; 89 int error; 90 91 mtlp = memstat_mtl_alloc(); 92 if (mtlp == NULL) { 93 xo_warn("memstat_mtl_alloc"); 94 return; 95 } 96 97 /* 98 * Use memstat_*_all() because some mbuf-related memory is in uma(9), 99 * and some malloc(9). 100 */ 101 if (live) { 102 if (memstat_sysctl_all(mtlp, 0) < 0) { 103 xo_warnx("memstat_sysctl_all: %s", 104 memstat_strerror(memstat_mtl_geterror(mtlp))); 105 goto out; 106 } 107 } else { 108 if (memstat_kvm_all(mtlp, kvmd) < 0) { 109 error = memstat_mtl_geterror(mtlp); 110 if (error == MEMSTAT_ERROR_KVM) 111 xo_warnx("memstat_kvm_all: %s", 112 kvm_geterr(kvmd)); 113 else 114 xo_warnx("memstat_kvm_all: %s", 115 memstat_strerror(error)); 116 goto out; 117 } 118 } 119 120 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); 121 if (mtp == NULL) { 122 xo_warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME); 123 goto out; 124 } 125 mbuf_count = memstat_get_count(mtp); 126 mbuf_bytes = memstat_get_bytes(mtp); 127 mbuf_free = memstat_get_free(mtp); 128 mbuf_failures = memstat_get_failures(mtp); 129 mbuf_sleeps = memstat_get_sleeps(mtp); 130 mbuf_size = memstat_get_size(mtp); 131 132 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME); 133 if (mtp == NULL) { 134 xo_warnx("memstat_mtl_find: zone %s not found", 135 MBUF_PACKET_MEM_NAME); 136 goto out; 137 } 138 packet_count = memstat_get_count(mtp); 139 packet_bytes = memstat_get_bytes(mtp); 140 packet_free = memstat_get_free(mtp); 141 packet_sleeps = memstat_get_sleeps(mtp); 142 packet_failures = memstat_get_failures(mtp); 143 144 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME); 145 if (mtp == NULL) { 146 xo_warnx("memstat_mtl_find: zone %s not found", 147 MBUF_CLUSTER_MEM_NAME); 148 goto out; 149 } 150 cluster_count = memstat_get_count(mtp); 151 cluster_limit = memstat_get_countlimit(mtp); 152 cluster_free = memstat_get_free(mtp); 153 cluster_failures = memstat_get_failures(mtp); 154 cluster_sleeps = memstat_get_sleeps(mtp); 155 cluster_size = memstat_get_size(mtp); 156 157 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME); 158 if (mtp == NULL) { 159 xo_warnx("memstat_mtl_find: malloc type %s not found", 160 MBUF_TAG_MEM_NAME); 161 goto out; 162 } 163 tag_bytes = memstat_get_bytes(mtp); 164 165 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME); 166 if (mtp == NULL) { 167 xo_warnx("memstat_mtl_find: zone %s not found", 168 MBUF_JUMBOP_MEM_NAME); 169 goto out; 170 } 171 jumbop_count = memstat_get_count(mtp); 172 jumbop_limit = memstat_get_countlimit(mtp); 173 jumbop_free = memstat_get_free(mtp); 174 jumbop_failures = memstat_get_failures(mtp); 175 jumbop_sleeps = memstat_get_sleeps(mtp); 176 jumbop_size = memstat_get_size(mtp); 177 178 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME); 179 if (mtp == NULL) { 180 xo_warnx("memstat_mtl_find: zone %s not found", 181 MBUF_JUMBO9_MEM_NAME); 182 goto out; 183 } 184 jumbo9_count = memstat_get_count(mtp); 185 jumbo9_limit = memstat_get_countlimit(mtp); 186 jumbo9_free = memstat_get_free(mtp); 187 jumbo9_failures = memstat_get_failures(mtp); 188 jumbo9_sleeps = memstat_get_sleeps(mtp); 189 jumbo9_size = memstat_get_size(mtp); 190 191 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME); 192 if (mtp == NULL) { 193 xo_warnx("memstat_mtl_find: zone %s not found", 194 MBUF_JUMBO16_MEM_NAME); 195 goto out; 196 } 197 jumbo16_count = memstat_get_count(mtp); 198 jumbo16_limit = memstat_get_countlimit(mtp); 199 jumbo16_free = memstat_get_free(mtp); 200 jumbo16_failures = memstat_get_failures(mtp); 201 jumbo16_sleeps = memstat_get_sleeps(mtp); 202 jumbo16_size = memstat_get_size(mtp); 203 204 xo_open_container("mbuf-statistics"); 205 206 xo_emit("{:mbuf-current/%ju}/{:mbuf-cache/%ju}/{:mbuf-total/%ju} " 207 "{N:mbufs in use (current\\/cache\\/total)}\n", 208 mbuf_count + packet_count, mbuf_free + packet_free, 209 mbuf_count + packet_count + mbuf_free + packet_free); 210 211 xo_emit("{:cluster-current/%ju}/{:cluster-cache/%ju}/" 212 "{:cluster-total/%ju}/{:cluster-max/%ju} " 213 "{N:mbuf clusters in use (current\\/cache\\/total\\/max)}\n", 214 cluster_count - packet_free, cluster_free + packet_free, 215 cluster_count + cluster_free, cluster_limit); 216 217 xo_emit("{:packet-count/%ju}/{:packet-free/%ju} " 218 "{N:mbuf+clusters out of packet secondary zone in use " 219 "(current\\/cache)}\n", 220 packet_count, packet_free); 221 222 xo_emit("{:jumbo-count/%ju}/{:jumbo-cache/%ju}/{:jumbo-total/%ju}/" 223 "{:jumbo-max/%ju} {:jumbo-page-size/%ju}{U:k} {N:(page size)} " 224 "{N:jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 225 jumbop_count, jumbop_free, jumbop_count + jumbop_free, 226 jumbop_limit, jumbop_size / 1024); 227 228 xo_emit("{:jumbo9-count/%ju}/{:jumbo9-cache/%ju}/" 229 "{:jumbo9-total/%ju}/{:jumbo9-max/%ju} " 230 "{N:9k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 231 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, 232 jumbo9_limit); 233 234 xo_emit("{:jumbo16-count/%ju}/{:jumbo16-cache/%ju}/" 235 "{:jumbo16-total/%ju}/{:jumbo16-limit/%ju} " 236 "{N:16k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 237 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, 238 jumbo16_limit); 239 240 #if 0 241 xo_emit("{:tag-count/%ju} {N:mbuf tags in use}\n", tag_count); 242 #endif 243 244 /*- 245 * Calculate in-use bytes as: 246 * - straight mbuf memory 247 * - mbuf memory in packets 248 * - the clusters attached to packets 249 * - and the rest of the non-packet-attached clusters. 250 * - m_tag memory 251 * This avoids counting the clusters attached to packets in the cache. 252 * This currently excludes sf_buf space. 253 */ 254 bytes_inuse = 255 mbuf_bytes + /* straight mbuf memory */ 256 packet_bytes + /* mbufs in packets */ 257 (packet_count * cluster_size) + /* clusters in packets */ 258 /* other clusters */ 259 ((cluster_count - packet_count - packet_free) * cluster_size) + 260 tag_bytes + 261 (jumbop_count * jumbop_size) + /* jumbo clusters */ 262 (jumbo9_count * jumbo9_size) + 263 (jumbo16_count * jumbo16_size); 264 265 /* 266 * Calculate in-cache bytes as: 267 * - cached straught mbufs 268 * - cached packet mbufs 269 * - cached packet clusters 270 * - cached straight clusters 271 * This currently excludes sf_buf space. 272 */ 273 bytes_incache = 274 (mbuf_free * mbuf_size) + /* straight free mbufs */ 275 (packet_free * mbuf_size) + /* mbufs in free packets */ 276 (packet_free * cluster_size) + /* clusters in free packets */ 277 (cluster_free * cluster_size) + /* free clusters */ 278 (jumbop_free * jumbop_size) + /* jumbo clusters */ 279 (jumbo9_free * jumbo9_size) + 280 (jumbo16_free * jumbo16_size); 281 282 /* 283 * Total is bytes in use + bytes in cache. This doesn't take into 284 * account various other misc data structures, overhead, etc, but 285 * gives the user something useful despite that. 286 */ 287 bytes_total = bytes_inuse + bytes_incache; 288 289 xo_emit("{:bytes-in-use/%ju}{U:K}/{:bytes-in-cache/%ju}{U:K}/" 290 "{:bytes-total/%ju}{U:K} " 291 "{N:bytes allocated to network (current\\/cache\\/total)}\n", 292 bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024); 293 294 xo_emit("{:mbuf-failures/%ju}/{:cluster-failures/%ju}/" 295 "{:packet-failures/%ju} {N:requests for mbufs denied " 296 "(mbufs\\/clusters\\/mbuf+clusters)}\n", 297 mbuf_failures, cluster_failures, packet_failures); 298 xo_emit("{:mbuf-sleeps/%ju}/{:cluster-sleeps/%ju}/{:packet-sleeps/%ju} " 299 "{N:requests for mbufs delayed " 300 "(mbufs\\/clusters\\/mbuf+clusters)}\n", 301 mbuf_sleeps, cluster_sleeps, packet_sleeps); 302 303 xo_emit("{:jumbop-sleeps/%ju}/{:jumbo9-sleeps/%ju}/" 304 "{:jumbo16-sleeps/%ju} {N:/requests for jumbo clusters delayed " 305 "(%juk\\/9k\\/16k)}\n", 306 jumbop_sleeps, jumbo9_sleeps, jumbo16_sleeps, jumbop_size / 1024); 307 xo_emit("{:jumbop-failures/%ju}/{:jumbo9-failures/%ju}/" 308 "{:jumbo16-failures/%ju} {N:/requests for jumbo clusters denied " 309 "(%juk\\/9k\\/16k)}\n", 310 jumbop_failures, jumbo9_failures, jumbo16_failures, 311 jumbop_size / 1024); 312 313 mlen = sizeof(nsfbufs); 314 if (live && 315 sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 && 316 sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, 317 NULL, 0) == 0 && 318 sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, 319 NULL, 0) == 0) 320 xo_emit("{:nsfbufs-current/%d}/{:nsfbufs-peak/%d}/" 321 "{:nsfbufs/%d} " 322 "{N:sfbufs in use (current\\/peak\\/max)}\n", 323 nsfbufsused, nsfbufspeak, nsfbufs); 324 325 if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat), 326 kread_counters) != 0) 327 goto out; 328 329 xo_emit("{:sendfile-syscalls/%ju} {N:sendfile syscalls}\n", 330 (uintmax_t)sfstat.sf_syscalls); 331 xo_emit("{:sendfile-no-io/%ju} " 332 "{N:sendfile syscalls completed without I\\/O request}\n", 333 (uintmax_t)sfstat.sf_noiocnt); 334 xo_emit("{:sendfile-io-count/%ju} " 335 "{N:requests for I\\/O initiated by sendfile}\n", 336 (uintmax_t)sfstat.sf_iocnt); 337 xo_emit("{:sendfile-pages-sent/%ju} " 338 "{N:pages read by sendfile as part of a request}\n", 339 (uintmax_t)sfstat.sf_pages_read); 340 xo_emit("{:sendfile-pages-valid/%ju} " 341 "{N:pages were valid at time of a sendfile request}\n", 342 (uintmax_t)sfstat.sf_pages_valid); 343 xo_emit("{:sendfile-requested-readahead/%ju} " 344 "{N:pages were requested for read ahead by applications}\n", 345 (uintmax_t)sfstat.sf_rhpages_requested); 346 xo_emit("{:sendfile-readahead/%ju} " 347 "{N:pages were read ahead by sendfile}\n", 348 (uintmax_t)sfstat.sf_rhpages_read); 349 xo_emit("{:sendfile-busy-encounters/%ju} " 350 "{N:times sendfile encountered an already busy page}\n", 351 (uintmax_t)sfstat.sf_busy); 352 xo_emit("{:sfbufs-alloc-failed/%ju} {N:requests for sfbufs denied}\n", 353 (uintmax_t)sfstat.sf_allocfail); 354 xo_emit("{:sfbufs-alloc-wait/%ju} {N:requests for sfbufs delayed}\n", 355 (uintmax_t)sfstat.sf_allocwait); 356 out: 357 xo_close_container("mbuf-statistics"); 358 memstat_mtl_free(mtlp); 359 } 360