1/* $OpenBSD: uvm.c,v 1.10 2024/05/18 09:02:34 jsg Exp $ */ 2/* 3 * Copyright (c) 2008 Can Erkin Acar <canacar@openbsd.org> 4 * Copyright (c) 2018 Kenneth R Westerback <krw@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#include <sys/types.h> 20#include <sys/signal.h> 21#include <sys/sysctl.h> 22#include <sys/pool.h> 23#include <ctype.h> 24#include <err.h> 25#include <errno.h> 26#include <stdlib.h> 27#include <string.h> 28#include <limits.h> 29 30#include "systat.h" 31 32#ifndef nitems 33#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) 34#endif 35 36void print_uvm(void); 37int read_uvm(void); 38int select_uvm(void); 39 40void print_uvmexp_field(field_def *, field_def *, int *, int *, const char *); 41 42struct uvmexp uvmexp; 43struct uvmexp last_uvmexp; 44 45struct uvmline { 46 int *v1; 47 int *ov1; 48 char *n1; 49 int *v2; 50 int *ov2; 51 char *n2; 52 int *v3; 53 int *ov3; 54 char *n3; 55}; 56 57struct uvmline uvmline[] = { 58 { NULL, NULL, "Page Counters", 59 NULL, NULL, "Stats Counters", 60 NULL, NULL, "Fault Counters" }, 61 { &uvmexp.npages, &last_uvmexp.npages, "npages", 62 &uvmexp.faults, &last_uvmexp.faults, "faults", 63 &uvmexp.fltnoram, &last_uvmexp.fltnoram, "fltnoram" }, 64 { &uvmexp.free, &last_uvmexp.free, "free", 65 &uvmexp.traps, &last_uvmexp.traps, "traps", 66 &uvmexp.fltnoanon, &last_uvmexp.fltnoanon, "fltnoanon" }, 67 { &uvmexp.active, &last_uvmexp.active, "active", 68 &uvmexp.intrs, &last_uvmexp.intrs, "intrs", 69 &uvmexp.fltnoamap, &last_uvmexp.fltnoamap, "fltnoamap" }, 70 { &uvmexp.inactive, &last_uvmexp.inactive, "inactive", 71 &uvmexp.swtch, &last_uvmexp.swtch, "swtch", 72 &uvmexp.fltpgwait, &last_uvmexp.fltpgwait, "fltpgwait" }, 73 { &uvmexp.paging, &last_uvmexp.paging, "paging", 74 &uvmexp.softs, &last_uvmexp.softs, "softs", 75 &uvmexp.fltpgrele, &last_uvmexp.fltpgrele, "fltpgrele" }, 76 { &uvmexp.wired, &last_uvmexp.wired, "wired", 77 &uvmexp.syscalls, &last_uvmexp.syscalls, "syscalls", 78 &uvmexp.fltrelck, &last_uvmexp.fltrelck, "fltrelck" }, 79 { &uvmexp.zeropages, &last_uvmexp.zeropages, "zeropages", 80 &uvmexp.pageins, &last_uvmexp.pageins, "pageins", 81 &uvmexp.fltrelckok, &last_uvmexp.fltrelckok, "fltrelckok" }, 82 { &uvmexp.percpucaches, &last_uvmexp.percpucaches, "percpucaches", 83 &uvmexp.pgswapin, &last_uvmexp.pgswapin, "pgswapin", 84 &uvmexp.fltanget, &last_uvmexp.fltanget, "fltanget" }, 85 { NULL, NULL, NULL, 86 &uvmexp.pgswapout, &last_uvmexp.pgswapout, "pgswapout", 87 &uvmexp.fltanretry, &last_uvmexp.fltanretry, "fltanretry" }, 88 { NULL, NULL, NULL, 89 &uvmexp.forks, &last_uvmexp.forks, "forks", 90 &uvmexp.fltamcopy, &last_uvmexp.fltamcopy, "fltamcopy" }, 91 { NULL, NULL, "Pageout Params", 92 &uvmexp.forks_ppwait, &last_uvmexp.forks_ppwait, "forks_ppwait", 93 &uvmexp.fltnamap, &last_uvmexp.fltnamap, "fltnamap" }, 94 { &uvmexp.freemin, &last_uvmexp.freemin, "freemin", 95 &uvmexp.forks_sharevm, &last_uvmexp.forks_sharevm, "forks_sharevm", 96 &uvmexp.fltnomap, &last_uvmexp.fltnomap, "fltnomap" }, 97 { &uvmexp.freetarg, &last_uvmexp.freetarg, "freetarg", 98 &uvmexp.pga_zerohit, &last_uvmexp.pga_zerohit, "pga_zerohit", 99 &uvmexp.fltlget, &last_uvmexp.fltlget, "fltlget" }, 100 { &uvmexp.inactarg, &last_uvmexp.inactarg, "inactarg", 101 &uvmexp.pga_zeromiss, &last_uvmexp.pga_zeromiss, "pga_zeromiss", 102 &uvmexp.fltget, &last_uvmexp.fltget, "fltget" }, 103 { &uvmexp.wiredmax, &last_uvmexp.wiredmax, "wiredmax", 104 NULL, NULL, NULL, 105 &uvmexp.flt_anon, &last_uvmexp.flt_anon, "flt_anon" }, 106 { &uvmexp.anonmin, &last_uvmexp.anonmin, "anonmin", 107 NULL, NULL, "Daemon Counters", 108 &uvmexp.flt_acow, &last_uvmexp.flt_acow, "flt_acow" }, 109 { &uvmexp.vtextmin, &last_uvmexp.vtextmin, "vtextmin", 110 &uvmexp.pdwoke, &last_uvmexp.pdwoke, "pdwoke", 111 &uvmexp.flt_obj, &last_uvmexp.flt_obj, "flt_obj" }, 112 { &uvmexp.vnodemin, &last_uvmexp.vnodemin, "vnodemin", 113 &uvmexp.pdrevs, &last_uvmexp.pdrevs, "pdrevs", 114 &uvmexp.flt_prcopy, &last_uvmexp.flt_prcopy, "flt_prcopy" }, 115 { &uvmexp.anonminpct, &last_uvmexp.anonminpct, "anonminpct", 116 &uvmexp.pdswout, &last_uvmexp.pdswout, "pdswout", 117 &uvmexp.flt_przero, &last_uvmexp.flt_przero, "flt_przero" }, 118 { &uvmexp.vtextminpct, &last_uvmexp.vtextminpct, "vtextminpct", 119 &uvmexp.swpgonly, &last_uvmexp.swpgonly, "swpgonly", 120 NULL, NULL, NULL }, 121 { &uvmexp.vnodeminpct, &last_uvmexp.vnodeminpct, "vnodeminpct", 122 &uvmexp.pdfreed, &last_uvmexp.pdfreed, "pdfreed", 123 NULL, NULL, "Swap Counters" }, 124 { NULL, NULL, NULL, 125 &uvmexp.pdscans, &last_uvmexp.pdscans, "pdscans", 126 &uvmexp.nswapdev, &last_uvmexp.nswapdev, "nswapdev" }, 127 { NULL, NULL, "Misc Counters", 128 &uvmexp.pdanscan, &last_uvmexp.pdanscan, "pdanscan", 129 &uvmexp.swpages, &last_uvmexp.swpages, "swpages" }, 130 { &uvmexp.fpswtch, &last_uvmexp.fpswtch, "fpswtch", 131 &uvmexp.pdobscan, &last_uvmexp.pdobscan, "pdobscan", 132 &uvmexp.swpginuse, &last_uvmexp.swpginuse, "swpginuse" }, 133 { &uvmexp.kmapent, &last_uvmexp.kmapent, "kmapent", 134 &uvmexp.pdreact, &last_uvmexp.pdreact, "pdreact", 135 &uvmexp.swpgonly, &last_uvmexp.swpgonly, "swpgonly" }, 136 { NULL, NULL, NULL, 137 &uvmexp.pdbusy, &last_uvmexp.pdbusy, "pdbusy", 138 &uvmexp.nswget, &last_uvmexp.nswget, "nswget" }, 139 { NULL, NULL, "Constants", 140 &uvmexp.pdpageouts, &last_uvmexp.pdpageouts, "pdpageouts", 141 NULL, NULL, NULL }, 142 { &uvmexp.pagesize, &last_uvmexp.pagesize, "pagesize", 143 &uvmexp.pdpending, &last_uvmexp.pdpending, "pdpending", 144 NULL, NULL, "Per-CPU Counters" }, 145 { &uvmexp.pagemask, &last_uvmexp.pagemask, "pagemask", 146 &uvmexp.pddeact, &last_uvmexp.pddeact, "pddeact", 147 &uvmexp.pcphit, &last_uvmexp.pcphit, "pcphit" }, 148 { &uvmexp.pageshift, &last_uvmexp.pageshift, "pageshift", 149 NULL, NULL, NULL, 150 &uvmexp.pcpmiss, &last_uvmexp.pcpmiss, "pcpmiss" } 151}; 152 153field_def fields_uvm[] = { 154 {"", 5,10,1, FLD_ALIGN_RIGHT, -1,0,0,0 }, 155 {"", 18,19,1, FLD_ALIGN_LEFT, -1,0,0,0 }, 156 {"", 5,10,1, FLD_ALIGN_RIGHT, -1,0,0,0 }, 157 {"", 18,19,1, FLD_ALIGN_LEFT, -1,0,0,0 }, 158 {"", 5,10,1, FLD_ALIGN_RIGHT, -1,0,0,0 }, 159 {"", 18,19,1, FLD_ALIGN_LEFT, -1,0,0,0 }, 160}; 161 162#define FLD_VALUE1 FIELD_ADDR(fields_uvm, 0) 163#define FLD_NAME1 FIELD_ADDR(fields_uvm, 1) 164#define FLD_VALUE2 FIELD_ADDR(fields_uvm, 2) 165#define FLD_NAME2 FIELD_ADDR(fields_uvm, 3) 166#define FLD_VALUE3 FIELD_ADDR(fields_uvm, 4) 167#define FLD_NAME3 FIELD_ADDR(fields_uvm, 5) 168 169/* Define views */ 170field_def *view_uvm_0[] = { 171 FLD_VALUE1, FLD_NAME1, 172 FLD_VALUE2, FLD_NAME2, 173 FLD_VALUE3, FLD_NAME3, 174 NULL 175}; 176 177/* Define view managers */ 178struct view_manager uvm_mgr = { 179 "UVM", select_uvm, read_uvm, NULL, print_header, 180 print_uvm, keyboard_callback, NULL, NULL 181}; 182 183field_view uvm_view = { 184 view_uvm_0, 185 "uvm", 186 '5', 187 &uvm_mgr 188}; 189 190int 191select_uvm(void) 192{ 193 return (0); 194} 195 196int 197read_uvm(void) 198{ 199 static int uvmexp_mib[2] = { CTL_VM, VM_UVMEXP }; 200 size_t size; 201 202 num_disp = nitems(uvmline); 203 memcpy(&last_uvmexp, &uvmexp, sizeof(uvmexp)); 204 205 size = sizeof(uvmexp); 206 if (sysctl(uvmexp_mib, 2, &uvmexp, &size, NULL, 0) == -1) { 207 error("Can't get VM_UVMEXP: %s\n", strerror(errno)); 208 memset(&uvmexp, 0, sizeof(uvmexp)); 209 } 210 211 return 0; 212} 213 214void 215print_uvmexp_field(field_def *fvalue, field_def *fname, int *new, int *old, 216 const char *name) 217{ 218 char *uppername; 219 size_t len, i; 220 221 if (new == NULL && name == NULL) 222 return; 223 224 if (new == NULL) { 225 print_fld_str(fvalue, "====="); 226 print_fld_str(fname, name); 227 return; 228 } 229 230 if (*new != 0) 231 print_fld_ssize(fvalue, *new); 232 if (*new == *old) { 233 print_fld_str(fname, name); 234 return; 235 } 236 len = strlen(name); 237 uppername = malloc(len + 1); 238 if (uppername == NULL) 239 err(1, "malloc"); 240 for (i = 0; i < len; i++) 241 uppername[i] = toupper(name[i]); 242 uppername[len] = '\0'; 243 print_fld_str(fname, uppername); 244 free(uppername); 245} 246 247void 248print_uvm(void) 249{ 250 struct uvmline *l; 251 int i, maxline; 252 253 maxline = nitems(uvmline); 254 if (maxline > (dispstart + maxprint)) 255 maxline = dispstart + maxprint; 256 257 for (i = dispstart; i < nitems(uvmline); i++) { 258 l = &uvmline[i]; 259 print_uvmexp_field(FLD_VALUE1, FLD_NAME1, l->v1, l->ov1, l->n1); 260 print_uvmexp_field(FLD_VALUE2, FLD_NAME2, l->v2, l->ov2, l->n2); 261 print_uvmexp_field(FLD_VALUE3, FLD_NAME3, l->v3, l->ov3, l->n3); 262 end_line(); 263 } 264} 265 266int 267inituvm(void) 268{ 269 add_view(&uvm_view); 270 read_uvm(); 271 272 return(0); 273} 274