1 /* 2 * (MPSAFE) 3 * 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. 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 * @(#)vm_meter.c 8.4 (Berkeley) 1/4/94 36 * $FreeBSD: src/sys/vm/vm_meter.c,v 1.34.2.7 2002/10/10 19:28:22 dillon Exp $ 37 * $DragonFly: src/sys/vm/vm_meter.c,v 1.15 2008/04/28 18:04:08 dillon Exp $ 38 */ 39 40 #include <sys/param.h> 41 #include <sys/proc.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/resource.h> 45 #include <sys/vmmeter.h> 46 47 #include <vm/vm.h> 48 #include <vm/vm_page.h> 49 #include <vm/vm_extern.h> 50 #include <vm/vm_param.h> 51 #include <sys/lock.h> 52 #include <vm/pmap.h> 53 #include <vm/vm_map.h> 54 #include <vm/vm_object.h> 55 #include <sys/sysctl.h> 56 57 struct vmstats vmstats; 58 59 static int maxslp = MAXSLP; 60 61 SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min, 62 CTLFLAG_RW, &vmstats.v_free_min, 0, ""); 63 SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target, 64 CTLFLAG_RW, &vmstats.v_free_target, 0, ""); 65 SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved, 66 CTLFLAG_RW, &vmstats.v_free_reserved, 0, ""); 67 SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target, 68 CTLFLAG_RW, &vmstats.v_inactive_target, 0, ""); 69 SYSCTL_UINT(_vm, VM_V_CACHE_MIN, v_cache_min, 70 CTLFLAG_RW, &vmstats.v_cache_min, 0, ""); 71 SYSCTL_UINT(_vm, VM_V_CACHE_MAX, v_cache_max, 72 CTLFLAG_RW, &vmstats.v_cache_max, 0, ""); 73 SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min, 74 CTLFLAG_RW, &vmstats.v_pageout_free_min, 0, ""); 75 SYSCTL_UINT(_vm, OID_AUTO, v_free_severe, 76 CTLFLAG_RW, &vmstats.v_free_severe, 0, ""); 77 78 SYSCTL_STRUCT(_vm, VM_LOADAVG, loadavg, CTLFLAG_RD, 79 &averunnable, loadavg, "Machine loadaverage history"); 80 81 static int do_vmtotal_callback(struct proc *p, void *data); 82 83 /* 84 * No requirements. 85 */ 86 static int 87 do_vmtotal(SYSCTL_HANDLER_ARGS) 88 { 89 struct vmtotal total; 90 struct vmtotal *totalp; 91 vm_object_t object; 92 93 bzero(&total, sizeof(total)); 94 totalp = &total; 95 96 /* 97 * Mark all objects as inactive. 98 */ 99 lwkt_gettoken(&vmobj_token); 100 for (object = TAILQ_FIRST(&vm_object_list); 101 object != NULL; 102 object = TAILQ_NEXT(object,object_list)) { 103 if (object->type == OBJT_MARKER) 104 continue; 105 vm_object_clear_flag(object, OBJ_ACTIVE); 106 } 107 lwkt_reltoken(&vmobj_token); 108 109 /* 110 * Calculate process statistics. 111 */ 112 allproc_scan(do_vmtotal_callback, totalp); 113 114 /* 115 * Calculate object memory usage statistics. 116 */ 117 lwkt_gettoken(&vmobj_token); 118 for (object = TAILQ_FIRST(&vm_object_list); 119 object != NULL; 120 object = TAILQ_NEXT(object, object_list)) { 121 /* 122 * devices, like /dev/mem, will badly skew our totals. 123 * markers aren't real objects. 124 */ 125 if (object->type == OBJT_MARKER) 126 continue; 127 if (object->type == OBJT_DEVICE) 128 continue; 129 if (object->size >= 0x7FFFFFFF) { 130 /* 131 * Probably unbounded anonymous memory (really 132 * bounded by related vm_map_entry structures which 133 * we do not have access to in this loop). 134 */ 135 totalp->t_vm += object->resident_page_count; 136 } else { 137 /* 138 * It's questionable how useful this is but... 139 */ 140 totalp->t_vm += object->size; 141 } 142 totalp->t_rm += object->resident_page_count; 143 if (object->flags & OBJ_ACTIVE) { 144 totalp->t_avm += object->size; 145 totalp->t_arm += object->resident_page_count; 146 } 147 if (object->shadow_count > 1) { 148 /* shared object */ 149 totalp->t_vmshr += object->size; 150 totalp->t_rmshr += object->resident_page_count; 151 if (object->flags & OBJ_ACTIVE) { 152 totalp->t_avmshr += object->size; 153 totalp->t_armshr += object->resident_page_count; 154 } 155 } 156 } 157 lwkt_reltoken(&vmobj_token); 158 totalp->t_free = vmstats.v_free_count + vmstats.v_cache_count; 159 160 return (sysctl_handle_opaque(oidp, totalp, sizeof total, req)); 161 } 162 163 /* 164 * The caller must hold proc_token. 165 */ 166 static int 167 do_vmtotal_callback(struct proc *p, void *data) 168 { 169 struct vmtotal *totalp = data; 170 struct lwp *lp; 171 vm_map_entry_t entry; 172 vm_map_t map; 173 int paging; 174 175 if (p->p_flag & P_SYSTEM) 176 return(0); 177 178 FOREACH_LWP_IN_PROC(lp, p) { 179 switch (lp->lwp_stat) { 180 case LSSTOP: 181 case LSSLEEP: 182 if ((p->p_flag & P_SWAPPEDOUT) == 0) { 183 if ((lp->lwp_flag & LWP_SINTR) == 0) 184 totalp->t_dw++; 185 else if (lp->lwp_slptime < maxslp) 186 totalp->t_sl++; 187 } else if (lp->lwp_slptime < maxslp) { 188 totalp->t_sw++; 189 } 190 if (lp->lwp_slptime >= maxslp) 191 return(0); 192 break; 193 194 case LSRUN: 195 if (p->p_flag & P_SWAPPEDOUT) 196 totalp->t_sw++; 197 else 198 totalp->t_rq++; 199 if (p->p_stat == SIDL) 200 return(0); 201 break; 202 203 default: 204 return (0); 205 } 206 } 207 208 /* 209 * Note active objects. 210 */ 211 paging = 0; 212 lwkt_gettoken(&vm_token); 213 if (p->p_vmspace) { 214 map = &p->p_vmspace->vm_map; 215 vm_map_lock_read(map); 216 for (entry = map->header.next; 217 entry != &map->header; entry = entry->next) { 218 if (entry->maptype != VM_MAPTYPE_NORMAL && 219 entry->maptype != VM_MAPTYPE_VPAGETABLE) { 220 continue; 221 } 222 if (entry->object.vm_object == NULL) 223 continue; 224 vm_object_set_flag(entry->object.vm_object, OBJ_ACTIVE); 225 paging |= entry->object.vm_object->paging_in_progress; 226 } 227 vm_map_unlock_read(map); 228 } 229 lwkt_reltoken(&vm_token); 230 if (paging) 231 totalp->t_pw++; 232 return(0); 233 } 234 235 /* 236 * No requirements. 237 */ 238 static int 239 do_vmstats(SYSCTL_HANDLER_ARGS) 240 { 241 struct vmstats vms = vmstats; 242 return (sysctl_handle_opaque(oidp, &vms, sizeof(vms), req)); 243 } 244 245 /* 246 * No requirements. 247 */ 248 static int 249 do_vmmeter(SYSCTL_HANDLER_ARGS) 250 { 251 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin); 252 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end); 253 struct vmmeter vmm; 254 int i; 255 256 bzero(&vmm, sizeof(vmm)); 257 for (i = 0; i < ncpus; ++i) { 258 int off; 259 struct globaldata *gd = globaldata_find(i); 260 261 for (off = boffset; off <= eoffset; off += sizeof(u_int)) { 262 *(u_int *)((char *)&vmm + off) += 263 *(u_int *)((char *)&gd->gd_cnt + off); 264 } 265 266 } 267 vmm.v_intr += vmm.v_ipi + vmm.v_timer; 268 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req)); 269 } 270 271 /* 272 * vcnt() - accumulate statistics from the cnt structure for each cpu 273 * 274 * The vmmeter structure is now per-cpu as well as global. Those 275 * statistics which can be kept on a per-cpu basis (to avoid cache 276 * stalls between cpus) can be moved to the per-cpu vmmeter. Remaining 277 * statistics, such as v_free_reserved, are left in the global 278 * structure. 279 * 280 * (sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req) 281 * 282 * No requirements. 283 */ 284 static int 285 vcnt(SYSCTL_HANDLER_ARGS) 286 { 287 int i; 288 int count = 0; 289 int offset = arg2; 290 291 for (i = 0; i < ncpus; ++i) { 292 struct globaldata *gd = globaldata_find(i); 293 count += *(int *)((char *)&gd->gd_cnt + offset); 294 } 295 return(SYSCTL_OUT(req, &count, sizeof(int))); 296 } 297 298 /* 299 * No requirements. 300 */ 301 static int 302 vcnt_intr(SYSCTL_HANDLER_ARGS) 303 { 304 int i; 305 int count = 0; 306 307 for (i = 0; i < ncpus; ++i) { 308 struct globaldata *gd = globaldata_find(i); 309 310 count += gd->gd_cnt.v_intr + gd->gd_cnt.v_ipi + 311 gd->gd_cnt.v_timer; 312 } 313 return(SYSCTL_OUT(req, &count, sizeof(int))); 314 } 315 316 #define VMMETEROFF(var) offsetof(struct vmmeter, var) 317 318 SYSCTL_PROC(_vm, OID_AUTO, vmtotal, CTLTYPE_OPAQUE|CTLFLAG_RD, 319 0, sizeof(struct vmtotal), do_vmtotal, "S,vmtotal", 320 "System virtual memory aggregate"); 321 SYSCTL_PROC(_vm, OID_AUTO, vmstats, CTLTYPE_OPAQUE|CTLFLAG_RD, 322 0, sizeof(struct vmstats), do_vmstats, "S,vmstats", 323 "System virtual memory statistics"); 324 SYSCTL_PROC(_vm, OID_AUTO, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD, 325 0, sizeof(struct vmmeter), do_vmmeter, "S,vmmeter", 326 "System statistics"); 327 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats"); 328 SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0, "VM meter sys stats"); 329 SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0, "VM meter vm stats"); 330 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats"); 331 332 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_swtch, CTLTYPE_UINT|CTLFLAG_RD, 333 0, VMMETEROFF(v_swtch), vcnt, "IU", "Context switches"); 334 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_coll, CTLTYPE_UINT|CTLFLAG_RD, 335 0, VMMETEROFF(v_intrans_coll), vcnt, "IU", ""); 336 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_wait, CTLTYPE_UINT|CTLFLAG_RD, 337 0, VMMETEROFF(v_intrans_wait), vcnt, "IU", ""); 338 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_ints, CTLTYPE_UINT|CTLFLAG_RD, 339 0, VMMETEROFF(v_forwarded_ints), vcnt, "IU", ""); 340 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_hits, CTLTYPE_UINT|CTLFLAG_RD, 341 0, VMMETEROFF(v_forwarded_hits), vcnt, "IU", ""); 342 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_misses, CTLTYPE_UINT|CTLFLAG_RD, 343 0, VMMETEROFF(v_forwarded_misses), vcnt, "IU", ""); 344 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_trap, CTLTYPE_UINT|CTLFLAG_RD, 345 0, VMMETEROFF(v_trap), vcnt, "IU", "Traps"); 346 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_syscall, CTLTYPE_UINT|CTLFLAG_RD, 347 0, VMMETEROFF(v_syscall), vcnt, "IU", "Syscalls"); 348 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intr, CTLTYPE_UINT|CTLFLAG_RD, 349 0, VMMETEROFF(v_intr), vcnt_intr, "IU", "Hardware interrupts"); 350 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_ipi, CTLTYPE_UINT|CTLFLAG_RD, 351 0, VMMETEROFF(v_ipi), vcnt, "IU", "Inter-processor interrupts"); 352 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_timer, CTLTYPE_UINT|CTLFLAG_RD, 353 0, VMMETEROFF(v_timer), vcnt, "IU", "LAPIC timer interrupts"); 354 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_soft, CTLTYPE_UINT|CTLFLAG_RD, 355 0, VMMETEROFF(v_soft), vcnt, "IU", "Software interrupts"); 356 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vm_faults, CTLTYPE_UINT|CTLFLAG_RD, 357 0, VMMETEROFF(v_vm_faults), vcnt, "IU", "VM faults"); 358 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_faults, CTLTYPE_UINT|CTLFLAG_RD, 359 0, VMMETEROFF(v_cow_faults), vcnt, "IU", "COW faults"); 360 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_optim, CTLTYPE_UINT|CTLFLAG_RD, 361 0, VMMETEROFF(v_cow_optim), vcnt, "IU", "Optimized COW faults"); 362 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_zfod, CTLTYPE_UINT|CTLFLAG_RD, 363 0, VMMETEROFF(v_zfod), vcnt, "IU", "Zero fill"); 364 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ozfod, CTLTYPE_UINT|CTLFLAG_RD, 365 0, VMMETEROFF(v_ozfod), vcnt, "IU", "Optimized zero fill"); 366 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapin, CTLTYPE_UINT|CTLFLAG_RD, 367 0, VMMETEROFF(v_swapin), vcnt, "IU", "Swapin operations"); 368 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapout, CTLTYPE_UINT|CTLFLAG_RD, 369 0, VMMETEROFF(v_swapout), vcnt, "IU", "Swapout operations"); 370 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsin, CTLTYPE_UINT|CTLFLAG_RD, 371 0, VMMETEROFF(v_swappgsin), vcnt, "IU", "Swapin pages"); 372 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsout, CTLTYPE_UINT|CTLFLAG_RD, 373 0, VMMETEROFF(v_swappgsout), vcnt, "IU", "Swapout pages"); 374 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodein, CTLTYPE_UINT|CTLFLAG_RD, 375 0, VMMETEROFF(v_vnodein), vcnt, "IU", "Vnodein operations"); 376 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodeout, CTLTYPE_UINT|CTLFLAG_RD, 377 0, VMMETEROFF(v_vnodeout), vcnt, "IU", "Vnodeout operations"); 378 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsin, CTLTYPE_UINT|CTLFLAG_RD, 379 0, VMMETEROFF(v_vnodepgsin), vcnt, "IU", "Vnodein pages"); 380 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsout, CTLTYPE_UINT|CTLFLAG_RD, 381 0, VMMETEROFF(v_vnodepgsout), vcnt, "IU", "Vnodeout pages"); 382 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_intrans, CTLTYPE_UINT|CTLFLAG_RD, 383 0, VMMETEROFF(v_intrans), vcnt, "IU", "In transit page blocking"); 384 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_reactivated, CTLTYPE_UINT|CTLFLAG_RD, 385 0, VMMETEROFF(v_reactivated), vcnt, "IU", "Reactivated pages"); 386 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdwakeups, CTLTYPE_UINT|CTLFLAG_RD, 387 0, VMMETEROFF(v_pdwakeups), vcnt, "IU", "Pagedaemon wakeups"); 388 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ppwakeups, CTLTYPE_UINT|CTLFLAG_RD, 389 0, VMMETEROFF(v_ppwakeups), vcnt, "IU", "vm_wait wakeups"); 390 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, CTLTYPE_UINT|CTLFLAG_RD, 391 0, VMMETEROFF(v_pdpages), vcnt, "IU", "Pagedaemon page scans"); 392 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_dfree, CTLTYPE_UINT|CTLFLAG_RD, 393 0, VMMETEROFF(v_dfree), vcnt, "IU", ""); 394 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pfree, CTLTYPE_UINT|CTLFLAG_RD, 395 0, VMMETEROFF(v_pfree), vcnt, "IU", ""); 396 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_tfree, CTLTYPE_UINT|CTLFLAG_RD, 397 0, VMMETEROFF(v_tfree), vcnt, "IU", ""); 398 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forks, CTLTYPE_UINT|CTLFLAG_RD, 399 0, VMMETEROFF(v_forks), vcnt, "IU", "Number of fork() calls"); 400 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforks, CTLTYPE_UINT|CTLFLAG_RD, 401 0, VMMETEROFF(v_vforks), vcnt, "IU", "Number of vfork() calls"); 402 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforks, CTLTYPE_UINT|CTLFLAG_RD, 403 0, VMMETEROFF(v_rforks), vcnt, "IU", "Number of rfork() calls"); 404 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreads, CTLTYPE_UINT|CTLFLAG_RD, 405 0, VMMETEROFF(v_kthreads), vcnt, "IU", "Number of fork() calls by kernel"); 406 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forkpages, CTLTYPE_UINT|CTLFLAG_RD, 407 0, VMMETEROFF(v_forkpages), vcnt, "IU", "VM pages affected by fork()"); 408 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforkpages, CTLTYPE_UINT|CTLFLAG_RD, 409 0, VMMETEROFF(v_vforkpages), vcnt, "IU", "VM pages affected by vfork()"); 410 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforkpages, CTLTYPE_UINT|CTLFLAG_RD, 411 0, VMMETEROFF(v_rforkpages), vcnt, "IU", "VM pages affected by rfork()"); 412 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreadpages, CTLTYPE_UINT|CTLFLAG_RD, 413 0, VMMETEROFF(v_kthreadpages), vcnt, "IU", "VM pages affected by fork() by kernel"); 414 415 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 416 v_page_size, CTLFLAG_RD, &vmstats.v_page_size, 0, ""); 417 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 418 v_page_count, CTLFLAG_RD, &vmstats.v_page_count, 0, ""); 419 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 420 v_free_reserved, CTLFLAG_RD, &vmstats.v_free_reserved, 0, ""); 421 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 422 v_free_target, CTLFLAG_RD, &vmstats.v_free_target, 0, ""); 423 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 424 v_free_min, CTLFLAG_RD, &vmstats.v_free_min, 0, ""); 425 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 426 v_free_count, CTLFLAG_RD, &vmstats.v_free_count, 0, ""); 427 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 428 v_wire_count, CTLFLAG_RD, &vmstats.v_wire_count, 0, ""); 429 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 430 v_active_count, CTLFLAG_RD, &vmstats.v_active_count, 0, ""); 431 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 432 v_inactive_target, CTLFLAG_RD, &vmstats.v_inactive_target, 0, ""); 433 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 434 v_inactive_count, CTLFLAG_RD, &vmstats.v_inactive_count, 0, ""); 435 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 436 v_cache_count, CTLFLAG_RD, &vmstats.v_cache_count, 0, ""); 437 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 438 v_cache_min, CTLFLAG_RD, &vmstats.v_cache_min, 0, ""); 439 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 440 v_cache_max, CTLFLAG_RD, &vmstats.v_cache_max, 0, ""); 441 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 442 v_pageout_free_min, CTLFLAG_RD, &vmstats.v_pageout_free_min, 0, ""); 443 SYSCTL_UINT(_vm_stats_vm, OID_AUTO, 444 v_interrupt_free_min, CTLFLAG_RD, &vmstats.v_interrupt_free_min, 0, ""); 445 SYSCTL_INT(_vm_stats_misc, OID_AUTO, 446 zero_page_count, CTLFLAG_RD, &vm_page_zero_count, 0, ""); 447 448 /* 449 * No requirements. 450 */ 451 static int 452 do_vmmeter_pcpu(SYSCTL_HANDLER_ARGS) 453 { 454 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin); 455 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end); 456 struct globaldata *gd = arg1; 457 struct vmmeter vmm; 458 int off; 459 460 bzero(&vmm, sizeof(vmm)); 461 for (off = boffset; off <= eoffset; off += sizeof(u_int)) { 462 *(u_int *)((char *)&vmm + off) += 463 *(u_int *)((char *)&gd->gd_cnt + off); 464 } 465 vmm.v_intr += vmm.v_ipi + vmm.v_timer; 466 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req)); 467 } 468 469 /* 470 * Called from the low level boot code only. 471 */ 472 static void 473 vmmeter_init(void *dummy __unused) 474 { 475 int i; 476 477 for (i = 0; i < ncpus; ++i) { 478 struct sysctl_ctx_list *ctx; 479 struct sysctl_oid *oid; 480 struct globaldata *gd; 481 char name[32]; 482 483 ksnprintf(name, sizeof(name), "cpu%d", i); 484 485 ctx = kmalloc(sizeof(*ctx), M_TEMP, M_WAITOK); 486 sysctl_ctx_init(ctx); 487 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_vm), 488 OID_AUTO, name, CTLFLAG_RD, 0, ""); 489 490 gd = globaldata_find(i); 491 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 492 "vmmeter", CTLTYPE_OPAQUE|CTLFLAG_RD, 493 gd, sizeof(struct vmmeter), do_vmmeter_pcpu, 494 "S,vmmeter", "System per-cpu statistics"); 495 } 496 } 497 SYSINIT(vmmeter, SI_SUB_PSEUDO, SI_ORDER_ANY, vmmeter_init, 0); 498