1 | /*- |
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2 | * Copyright (c) 1983, 1988, 1993 |
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3 | * The Regents of the University of California. |
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4 | * Copyright (c) 2005 Robert N. M. Watson |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * 3. All advertising materials mentioning features or use of this software |
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16 | * must display the following acknowledgement: |
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17 | * This product includes software developed by the University of |
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18 | * California, Berkeley and its contributors. |
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19 | * 4. Neither the name of the University nor the names of its contributors |
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20 | * may be used to endorse or promote products derived from this software |
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21 | * without specific prior written permission. |
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22 | * |
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23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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33 | * SUCH DAMAGE. |
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34 | */ |
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35 | |
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36 | #if 0 |
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37 | #ifndef lint |
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38 | static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; |
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39 | #endif /* not lint */ |
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40 | #endif |
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41 | |
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42 | #include <sys/cdefs.h> |
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43 | __FBSDID("$FreeBSD$"); |
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44 | |
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45 | #include <sys/param.h> |
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46 | #ifdef __rtems__ |
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47 | #include <stdint.h> |
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48 | #include <freebsd/sys/mbuf.h> |
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49 | #include <freebsd/sys/protosw.h> |
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50 | #else |
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51 | #include <sys/mbuf.h> |
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52 | #include <sys/protosw.h> |
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53 | #endif |
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54 | #include <sys/socket.h> |
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55 | #include <sys/socketvar.h> |
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56 | #include <sys/sysctl.h> |
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57 | |
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58 | #include <err.h> |
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59 | #ifndef __rtems__ |
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60 | #include <kvm.h> |
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61 | #endif |
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62 | #include <memstat.h> |
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63 | #include <stdint.h> |
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64 | #include <stdio.h> |
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65 | #include <stdlib.h> |
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66 | #include <string.h> |
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67 | #include "netstat.h" |
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68 | |
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69 | /* |
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70 | * Print mbuf statistics. |
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71 | */ |
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72 | void |
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73 | mbpr(void *kvmd, u_long mbaddr) |
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74 | { |
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75 | struct memory_type_list *mtlp; |
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76 | struct memory_type *mtp; |
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77 | uintmax_t mbuf_count, mbuf_bytes, mbuf_free, mbuf_failures, mbuf_size; |
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78 | uintmax_t cluster_count, cluster_bytes, cluster_limit, cluster_free; |
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79 | uintmax_t cluster_failures, cluster_size; |
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80 | uintmax_t packet_count, packet_bytes, packet_free, packet_failures; |
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81 | uintmax_t tag_count, tag_bytes; |
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82 | uintmax_t jumbop_count, jumbop_bytes, jumbop_limit, jumbop_free; |
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83 | uintmax_t jumbop_failures, jumbop_size; |
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84 | uintmax_t jumbo9_count, jumbo9_bytes, jumbo9_limit, jumbo9_free; |
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85 | uintmax_t jumbo9_failures, jumbo9_size; |
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86 | uintmax_t jumbo16_count, jumbo16_bytes, jumbo16_limit, jumbo16_free; |
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87 | uintmax_t jumbo16_failures, jumbo16_size; |
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88 | uintmax_t bytes_inuse, bytes_incache, bytes_total; |
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89 | int nsfbufs, nsfbufspeak, nsfbufsused; |
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90 | struct mbstat mbstat; |
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91 | size_t mlen; |
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92 | int error; |
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93 | |
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94 | mtlp = memstat_mtl_alloc(); |
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95 | if (mtlp == NULL) { |
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96 | warn("memstat_mtl_alloc"); |
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97 | return; |
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98 | } |
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99 | |
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100 | /* |
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101 | * Use memstat_*_all() because some mbuf-related memory is in uma(9), |
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102 | * and some malloc(9). |
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103 | */ |
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104 | if (live) { |
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105 | if (memstat_sysctl_all(mtlp, 0) < 0) { |
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106 | warnx("memstat_sysctl_all: %s", |
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107 | memstat_strerror(memstat_mtl_geterror(mtlp))); |
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108 | goto out; |
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109 | } |
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110 | } else { |
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111 | #ifndef __rtems__ |
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112 | if (memstat_kvm_all(mtlp, kvmd) < 0) { |
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113 | error = memstat_mtl_geterror(mtlp); |
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114 | if (error == MEMSTAT_ERROR_KVM) |
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115 | warnx("memstat_kvm_all: %s", |
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116 | kvm_geterr(kvmd)); |
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117 | else |
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118 | warnx("memstat_kvm_all: %s", |
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119 | memstat_strerror(error)); |
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120 | goto out; |
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121 | } |
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122 | #endif |
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123 | } |
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124 | |
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125 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_MEM_NAME); |
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126 | if (mtp == NULL) { |
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127 | warnx("memstat_mtl_find: zone %s not found", MBUF_MEM_NAME); |
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128 | goto out; |
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129 | } |
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130 | mbuf_count = memstat_get_count(mtp); |
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131 | mbuf_bytes = memstat_get_bytes(mtp); |
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132 | mbuf_free = memstat_get_free(mtp); |
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133 | mbuf_failures = memstat_get_failures(mtp); |
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134 | mbuf_size = memstat_get_size(mtp); |
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135 | |
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136 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_PACKET_MEM_NAME); |
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137 | if (mtp == NULL) { |
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138 | warnx("memstat_mtl_find: zone %s not found", |
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139 | MBUF_PACKET_MEM_NAME); |
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140 | goto out; |
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141 | } |
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142 | packet_count = memstat_get_count(mtp); |
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143 | packet_bytes = memstat_get_bytes(mtp); |
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144 | packet_free = memstat_get_free(mtp); |
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145 | packet_failures = memstat_get_failures(mtp); |
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146 | |
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147 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_CLUSTER_MEM_NAME); |
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148 | if (mtp == NULL) { |
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149 | warnx("memstat_mtl_find: zone %s not found", |
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150 | MBUF_CLUSTER_MEM_NAME); |
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151 | goto out; |
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152 | } |
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153 | cluster_count = memstat_get_count(mtp); |
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154 | cluster_bytes = memstat_get_bytes(mtp); |
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155 | cluster_limit = memstat_get_countlimit(mtp); |
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156 | cluster_free = memstat_get_free(mtp); |
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157 | cluster_failures = memstat_get_failures(mtp); |
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158 | cluster_size = memstat_get_size(mtp); |
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159 | |
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160 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_MALLOC, MBUF_TAG_MEM_NAME); |
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161 | if (mtp == NULL) { |
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162 | warnx("memstat_mtl_find: malloc type %s not found", |
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163 | MBUF_TAG_MEM_NAME); |
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164 | goto out; |
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165 | } |
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166 | tag_count = memstat_get_count(mtp); |
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167 | tag_bytes = memstat_get_bytes(mtp); |
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168 | |
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169 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBOP_MEM_NAME); |
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170 | if (mtp == NULL) { |
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171 | warnx("memstat_mtl_find: zone %s not found", |
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172 | MBUF_JUMBOP_MEM_NAME); |
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173 | goto out; |
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174 | } |
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175 | jumbop_count = memstat_get_count(mtp); |
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176 | jumbop_bytes = memstat_get_bytes(mtp); |
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177 | jumbop_limit = memstat_get_countlimit(mtp); |
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178 | jumbop_free = memstat_get_free(mtp); |
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179 | jumbop_failures = memstat_get_failures(mtp); |
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180 | jumbop_size = memstat_get_size(mtp); |
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181 | |
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182 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO9_MEM_NAME); |
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183 | if (mtp == NULL) { |
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184 | warnx("memstat_mtl_find: zone %s not found", |
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185 | MBUF_JUMBO9_MEM_NAME); |
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186 | goto out; |
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187 | } |
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188 | jumbo9_count = memstat_get_count(mtp); |
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189 | jumbo9_bytes = memstat_get_bytes(mtp); |
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190 | jumbo9_limit = memstat_get_countlimit(mtp); |
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191 | jumbo9_free = memstat_get_free(mtp); |
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192 | jumbo9_failures = memstat_get_failures(mtp); |
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193 | jumbo9_size = memstat_get_size(mtp); |
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194 | |
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195 | mtp = memstat_mtl_find(mtlp, ALLOCATOR_UMA, MBUF_JUMBO16_MEM_NAME); |
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196 | if (mtp == NULL) { |
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197 | warnx("memstat_mtl_find: zone %s not found", |
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198 | MBUF_JUMBO16_MEM_NAME); |
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199 | goto out; |
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200 | } |
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201 | jumbo16_count = memstat_get_count(mtp); |
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202 | jumbo16_bytes = memstat_get_bytes(mtp); |
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203 | jumbo16_limit = memstat_get_countlimit(mtp); |
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204 | jumbo16_free = memstat_get_free(mtp); |
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205 | jumbo16_failures = memstat_get_failures(mtp); |
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206 | jumbo16_size = memstat_get_size(mtp); |
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207 | |
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208 | printf("%ju/%ju/%ju mbufs in use (current/cache/total)\n", |
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209 | mbuf_count + packet_count, mbuf_free + packet_free, |
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210 | mbuf_count + packet_count + mbuf_free + packet_free); |
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211 | |
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212 | printf("%ju/%ju/%ju/%ju mbuf clusters in use " |
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213 | "(current/cache/total/max)\n", |
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214 | cluster_count - packet_free, cluster_free + packet_free, |
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215 | cluster_count + cluster_free, cluster_limit); |
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216 | |
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217 | printf("%ju/%ju mbuf+clusters out of packet secondary zone in use " |
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218 | "(current/cache)\n", |
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219 | packet_count, packet_free); |
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220 | |
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221 | printf("%ju/%ju/%ju/%ju %juk (page size) jumbo clusters in use " |
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222 | "(current/cache/total/max)\n", |
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223 | jumbop_count, jumbop_free, jumbop_count + jumbop_free, |
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224 | jumbop_limit, jumbop_size / 1024); |
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225 | |
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226 | printf("%ju/%ju/%ju/%ju 9k jumbo clusters in use " |
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227 | "(current/cache/total/max)\n", |
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228 | jumbo9_count, jumbo9_free, jumbo9_count + jumbo9_free, |
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229 | jumbo9_limit); |
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230 | |
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231 | printf("%ju/%ju/%ju/%ju 16k jumbo clusters in use " |
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232 | "(current/cache/total/max)\n", |
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233 | jumbo16_count, jumbo16_free, jumbo16_count + jumbo16_free, |
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234 | jumbo16_limit); |
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235 | |
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236 | #if 0 |
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237 | printf("%ju mbuf tags in use\n", tag_count); |
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238 | #endif |
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239 | |
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240 | /*- |
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241 | * Calculate in-use bytes as: |
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242 | * - straight mbuf memory |
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243 | * - mbuf memory in packets |
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244 | * - the clusters attached to packets |
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245 | * - and the rest of the non-packet-attached clusters. |
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246 | * - m_tag memory |
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247 | * This avoids counting the clusters attached to packets in the cache. |
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248 | * This currently excludes sf_buf space. |
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249 | */ |
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250 | bytes_inuse = |
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251 | mbuf_bytes + /* straight mbuf memory */ |
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252 | packet_bytes + /* mbufs in packets */ |
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253 | (packet_count * cluster_size) + /* clusters in packets */ |
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254 | /* other clusters */ |
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255 | ((cluster_count - packet_count - packet_free) * cluster_size) + |
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256 | tag_bytes + |
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257 | (jumbop_count * jumbop_size) + /* jumbo clusters */ |
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258 | (jumbo9_count * jumbo9_size) + |
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259 | (jumbo16_count * jumbo16_size); |
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260 | |
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261 | /* |
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262 | * Calculate in-cache bytes as: |
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263 | * - cached straught mbufs |
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264 | * - cached packet mbufs |
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265 | * - cached packet clusters |
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266 | * - cached straight clusters |
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267 | * This currently excludes sf_buf space. |
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268 | */ |
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269 | bytes_incache = |
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270 | (mbuf_free * mbuf_size) + /* straight free mbufs */ |
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271 | (packet_free * mbuf_size) + /* mbufs in free packets */ |
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272 | (packet_free * cluster_size) + /* clusters in free packets */ |
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273 | (cluster_free * cluster_size) + /* free clusters */ |
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274 | (jumbop_free * jumbop_size) + /* jumbo clusters */ |
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275 | (jumbo9_free * jumbo9_size) + |
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276 | (jumbo16_free * jumbo16_size); |
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277 | |
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278 | /* |
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279 | * Total is bytes in use + bytes in cache. This doesn't take into |
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280 | * account various other misc data structures, overhead, etc, but |
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281 | * gives the user something useful despite that. |
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282 | */ |
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283 | bytes_total = bytes_inuse + bytes_incache; |
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284 | |
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285 | printf("%juK/%juK/%juK bytes allocated to network " |
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286 | "(current/cache/total)\n", bytes_inuse / 1024, |
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287 | bytes_incache / 1024, bytes_total / 1024); |
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288 | |
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289 | printf("%ju/%ju/%ju requests for mbufs denied (mbufs/clusters/" |
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290 | "mbuf+clusters)\n", mbuf_failures, cluster_failures, |
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291 | packet_failures); |
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292 | |
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293 | printf("%ju/%ju/%ju requests for jumbo clusters denied " |
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294 | "(%juk/9k/16k)\n", jumbop_failures, jumbo9_failures, |
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295 | jumbo16_failures, jumbop_size / 1024); |
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296 | |
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297 | if (live) { |
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298 | mlen = sizeof(nsfbufs); |
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299 | if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, |
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300 | 0) && |
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301 | !sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, |
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302 | &mlen, NULL, 0) && |
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303 | !sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, |
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304 | &mlen, NULL, 0)) |
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305 | printf("%d/%d/%d sfbufs in use (current/peak/max)\n", |
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306 | nsfbufsused, nsfbufspeak, nsfbufs); |
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307 | mlen = sizeof(mbstat); |
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308 | if (sysctlbyname("kern.ipc.mbstat", &mbstat, &mlen, NULL, 0)) { |
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309 | warn("kern.ipc.mbstat"); |
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310 | goto out; |
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311 | } |
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312 | } else { |
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313 | if (kread(mbaddr, (char *)&mbstat, sizeof mbstat) != 0) |
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314 | goto out; |
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315 | } |
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316 | printf("%lu requests for sfbufs denied\n", mbstat.sf_allocfail); |
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317 | printf("%lu requests for sfbufs delayed\n", mbstat.sf_allocwait); |
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318 | printf("%lu requests for I/O initiated by sendfile\n", |
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319 | mbstat.sf_iocnt); |
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320 | printf("%lu calls to protocol drain routines\n", mbstat.m_drain); |
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321 | out: |
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322 | memstat_mtl_free(mtlp); |
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323 | } |
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