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 <err.h> 47#include <kvm.h> 48#include <memstat.h> 49#include <stdint.h> 50#include <stdio.h> 51#include <stdlib.h> 52#include <stdbool.h> 53#include <string.h> 54#include <libxo/xo.h> 55#include "netstat.h" 56 57/* 58 * Print mbuf statistics. 59 */ 60void 61mbpr(void *kvmd, u_long mbaddr) 62{ 63 struct memory_type_list *mtlp; 64 struct memory_type *mtp; 65 uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; 66 uintmax_t mbuf_sleeps; 67 uintmax_t cluster_count, cluster_limit, cluster_free; 68 uintmax_t cluster_failures, cluster_size, cluster_sleeps; 69 uintmax_t packet_count, packet_bytes, packet_free, packet_failures; 70 uintmax_t packet_sleeps; 71 uintmax_t tag_bytes; 72 uintmax_t jumbop_count, jumbop_limit, jumbop_free; 73 uintmax_t jumbop_failures, jumbop_sleeps, jumbop_size; 74 uintmax_t jumbo9_count, jumbo9_limit, jumbo9_free; 75 uintmax_t jumbo9_failures, jumbo9_sleeps, jumbo9_size; 76 uintmax_t jumbo16_count, jumbo16_limit, jumbo16_free; 77 uintmax_t jumbo16_failures, jumbo16_sleeps, jumbo16_size; 78 uintmax_t bytes_inuse, bytes_incache, bytes_total; 79 int nsfbufs, nsfbufspeak, nsfbufsused; 80 struct sfstat sfstat; 81 size_t mlen; 82 int error; 83 84 mtlp = memstat_mtl_alloc(); 85 if (mtlp == NULL) { 86 xo_warn("memstat_mtl_alloc"); 87 return; 88 } 89 90 /* 91 * Use memstat_*_all() because some mbuf-related memory is in uma(9), 92 * and some malloc(9). 93 */ 94 if (live) { 95 if (memstat_sysctl_all(mtlp, 0) < 0) { 96 xo_warnx("memstat_sysctl_all: %s", 97 memstat_strerror(memstat_mtl_geterror(mtlp))); 98 goto out; 99 } 100 } else { 101 if (memstat_kvm_all(mtlp, kvmd) < 0) { 102 error = memstat_mtl_geterror(mtlp); 103 if (error == MEMSTAT_ERROR_KVM) 104 xo_warnx("memstat_kvm_all: %s", 105 kvm_geterr(kvmd)); 106 else 107 xo_warnx("memstat_kvm_all: %s", 108 memstat_strerror(error)); 109 goto out; 110 } 111 } 112 113 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); 114 if (mtp == NULL) { 115 xo_warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME); 116 goto out; 117 } 118 mbuf_count = memstat_get_count(mtp); 119 mbuf_bytes = memstat_get_bytes(mtp); 120 mbuf_free = memstat_get_free(mtp); 121 mbuf_failures = memstat_get_failures(mtp); 122 mbuf_sleeps = memstat_get_sleeps(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 xo_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_sleeps = memstat_get_sleeps(mtp); 135 packet_failures = memstat_get_failures(mtp); 136 137 mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME); 138 if (mtp == NULL) { 139 xo_warnx("memstat_mtl_find: zone %s not found", 140 MBUF_CLUSTER_MEM_NAME); 141 goto out; 142 } 143 cluster_count = memstat_get_count(mtp); 144 cluster_limit = memstat_get_countlimit(mtp); 145 cluster_free = memstat_get_free(mtp); 146 cluster_failures = memstat_get_failures(mtp); 147 cluster_sleeps = memstat_get_sleeps(mtp); 148 cluster_size = memstat_get_size(mtp); 149 150 mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME); 151 if (mtp == NULL) { 152 xo_warnx("memstat_mtl_find: malloc type %s not found", 153 MBUF_TAG_MEM_NAME); 154 goto out; 155 } 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 xo_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_limit = memstat_get_countlimit(mtp); 166 jumbop_free = memstat_get_free(mtp); 167 jumbop_failures = memstat_get_failures(mtp); 168 jumbop_sleeps = memstat_get_sleeps(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 xo_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_limit = memstat_get_countlimit(mtp); 179 jumbo9_free = memstat_get_free(mtp); 180 jumbo9_failures = memstat_get_failures(mtp); 181 jumbo9_sleeps = memstat_get_sleeps(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 xo_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_limit = memstat_get_countlimit(mtp); 192 jumbo16_free = memstat_get_free(mtp); 193 jumbo16_failures = memstat_get_failures(mtp); 194 jumbo16_sleeps = memstat_get_sleeps(mtp); 195 jumbo16_size = memstat_get_size(mtp); 196 197 xo_open_container("mbuf-statistics"); 198 199 xo_emit("{:mbuf-current/%ju}/{:mbuf-cache/%ju}/{:mbuf-total/%ju} " 200 "{N:mbufs in use (current\\/cache\\/total)}\n", 201 mbuf_count + packet_count, mbuf_free + packet_free, 202 mbuf_count + packet_count + mbuf_free + packet_free); 203 204 xo_emit("{:cluster-current/%ju}/{:cluster-cache/%ju}/" 205 "{:cluster-total/%ju}/{:cluster-max/%ju} " 206 "{N:mbuf clusters in use (current\\/cache\\/total\\/max)}\n", 207 cluster_count - packet_free, cluster_free + packet_free, 208 cluster_count + cluster_free, cluster_limit); 209 210 xo_emit("{:packet-count/%ju}/{:packet-free/%ju} " 211 "{N:mbuf+clusters out of packet secondary zone in use " 212 "(current\\/cache)}\n", 213 packet_count, packet_free); 214 215 xo_emit("{:jumbo-count/%ju}/{:jumbo-cache/%ju}/{:jumbo-total/%ju}/" 216 "{:jumbo-max/%ju} {:jumbo-page-size/%ju}{U:k} {N:(page size)} " 217 "{N:jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 218 jumbop_count, jumbop_free, jumbop_count + jumbop_free, 219 jumbop_limit, jumbop_size / 1024); 220 221 xo_emit("{:jumbo9-count/%ju}/{:jumbo9-cache/%ju}/" 222 "{:jumbo9-total/%ju}/{:jumbo9-max/%ju} " 223 "{N:9k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 224 jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, 225 jumbo9_limit); 226 227 xo_emit("{:jumbo16-count/%ju}/{:jumbo16-cache/%ju}/" 228 "{:jumbo16-total/%ju}/{:jumbo16-limit/%ju} " 229 "{N:16k jumbo clusters in use (current\\/cache\\/total\\/max)}\n", 230 jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, 231 jumbo16_limit); 232 233#if 0 234 xo_emit("{:tag-count/%ju} {N:mbuf tags in use}\n", tag_count); 235#endif 236 237 /*- 238 * Calculate in-use bytes as: 239 * - straight mbuf memory 240 * - mbuf memory in packets 241 * - the clusters attached to packets 242 * - and the rest of the non-packet-attached clusters. 243 * - m_tag memory 244 * This avoids counting the clusters attached to packets in the cache. 245 * This currently excludes sf_buf space. 246 */ 247 bytes_inuse = 248 mbuf_bytes + /* straight mbuf memory */ 249 packet_bytes + /* mbufs in packets */ 250 (packet_count * cluster_size) + /* clusters in packets */ 251 /* other clusters */ 252 ((cluster_count - packet_count - packet_free) * cluster_size) + 253 tag_bytes + 254 (jumbop_count * jumbop_size) + /* jumbo clusters */ 255 (jumbo9_count * jumbo9_size) + 256 (jumbo16_count * jumbo16_size); 257 258 /* 259 * Calculate in-cache bytes as: 260 * - cached straught mbufs 261 * - cached packet mbufs 262 * - cached packet clusters 263 * - cached straight clusters 264 * This currently excludes sf_buf space. 265 */ 266 bytes_incache = 267 (mbuf_free * mbuf_size) + /* straight free mbufs */ 268 (packet_free * mbuf_size) + /* mbufs in free packets */ 269 (packet_free * cluster_size) + /* clusters in free packets */ 270 (cluster_free * cluster_size) + /* free clusters */ 271 (jumbop_free * jumbop_size) + /* jumbo clusters */ 272 (jumbo9_free * jumbo9_size) + 273 (jumbo16_free * jumbo16_size); 274 275 /* 276 * Total is bytes in use + bytes in cache. This doesn't take into 277 * account various other misc data structures, overhead, etc, but 278 * gives the user something useful despite that. 279 */ 280 bytes_total = bytes_inuse + bytes_incache; 281 282 xo_emit("{:bytes-in-use/%ju}{U:K}/{:bytes-in-cache/%ju}{U:K}/" 283 "{:bytes-total/%ju}{U:K} " 284 "{N:bytes allocated to network (current\\/cache\\/total)}\n", 285 bytes_inuse / 1024, bytes_incache / 1024, bytes_total / 1024); 286 287 xo_emit("{:mbuf-failures/%ju}/{:cluster-failures/%ju}/" 288 "{:packet-failures/%ju} {N:requests for mbufs denied " 289 "(mbufs\\/clusters\\/mbuf+clusters)}\n", 290 mbuf_failures, cluster_failures, packet_failures); 291 xo_emit("{:mbuf-sleeps/%ju}/{:cluster-sleeps/%ju}/{:packet-sleeps/%ju} " 292 "{N:requests for mbufs delayed " 293 "(mbufs\\/clusters\\/mbuf+clusters)}\n", 294 mbuf_sleeps, cluster_sleeps, packet_sleeps); 295 296 xo_emit("{:jumbop-sleeps/%ju}/{:jumbo9-sleeps/%ju}/" 297 "{:jumbo16-sleeps/%ju} {N:/requests for jumbo clusters delayed " 298 "(%juk\\/9k\\/16k)}\n", 299 jumbop_sleeps, jumbo9_sleeps, jumbo16_sleeps, jumbop_size / 1024); 300 xo_emit("{:jumbop-failures/%ju}/{:jumbo9-failures/%ju}/" 301 "{:jumbo16-failures/%ju} {N:/requests for jumbo clusters denied " 302 "(%juk\\/9k\\/16k)}\n", 303 jumbop_failures, jumbo9_failures, jumbo16_failures, 304 jumbop_size / 1024); 305 306 mlen = sizeof(nsfbufs); 307 if (live && 308 sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) == 0 && 309 sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, 310 NULL, 0) == 0 && 311 sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, 312 NULL, 0) == 0) 313 xo_emit("{:nsfbufs-current/%d}/{:nsfbufs-peak/%d}/" 314 "{:nsfbufs/%d} " 315 "{N:sfbufs in use (current\\/peak\\/max)}\n", 316 nsfbufsused, nsfbufspeak, nsfbufs); 317 318 if (fetch_stats("kern.ipc.sfstat", mbaddr, &sfstat, sizeof(sfstat), 319 kread_counters) != 0) 320 goto out; 321 322 xo_emit("{:sendfile-syscalls/%ju} {N:sendfile syscalls}\n", 323 (uintmax_t)sfstat.sf_syscalls); 324 xo_emit("{:sendfile-no-io/%ju} " 325 "{N:sendfile syscalls completed without I\\/O request}\n", 326 (uintmax_t)sfstat.sf_noiocnt); 327 xo_emit("{:sendfile-io-count/%ju} " 328 "{N:requests for I\\/O initiated by sendfile}\n", 329 (uintmax_t)sfstat.sf_iocnt); 330 xo_emit("{:sendfile-pages-sent/%ju} " 331 "{N:pages read by sendfile as part of a request}\n", 332 (uintmax_t)sfstat.sf_pages_read); 333 xo_emit("{:sendfile-pages-valid/%ju} " 334 "{N:pages were valid at time of a sendfile request}\n", 335 (uintmax_t)sfstat.sf_pages_valid); 336 xo_emit("{:sendfile-pages-bogus/%ju} " 337 "{N:pages were valid and substituted to bogus page}\n", 338 (uintmax_t)sfstat.sf_pages_bogus); 339 xo_emit("{:sendfile-requested-readahead/%ju} " 340 "{N:pages were requested for read ahead by applications}\n", 341 (uintmax_t)sfstat.sf_rhpages_requested); 342 xo_emit("{:sendfile-readahead/%ju} " 343 "{N:pages were read ahead by sendfile}\n", 344 (uintmax_t)sfstat.sf_rhpages_read); 345 xo_emit("{:sendfile-busy-encounters/%ju} " 346 "{N:times sendfile encountered an already busy page}\n", 347 (uintmax_t)sfstat.sf_busy); 348 xo_emit("{:sfbufs-alloc-failed/%ju} {N:requests for sfbufs denied}\n", 349 (uintmax_t)sfstat.sf_allocfail); 350 xo_emit("{:sfbufs-alloc-wait/%ju} {N:requests for sfbufs delayed}\n", 351 (uintmax_t)sfstat.sf_allocwait); 352out: 353 xo_close_container("mbuf-statistics"); 354 memstat_mtl_free(mtlp); 355} 356