4 * Copyright (c) 1982, 1986, 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
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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
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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
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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
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 $
40 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/resource.h>
45 #include <sys/vmmeter.h>
48 #include <vm/vm_page.h>
49 #include <vm/vm_extern.h>
50 #include <vm/vm_param.h>
53 #include <vm/vm_map.h>
54 #include <vm/vm_object.h>
55 #include <sys/sysctl.h>
57 struct vmstats vmstats;
59 static int maxslp = MAXSLP;
61 SYSCTL_UINT(_vm, VM_V_FREE_MIN, v_free_min,
62 CTLFLAG_RW, &vmstats.v_free_min, 0,
63 "Minimum number of pages desired free");
64 SYSCTL_UINT(_vm, VM_V_FREE_TARGET, v_free_target,
65 CTLFLAG_RW, &vmstats.v_free_target, 0,
66 "Number of pages desired free");
67 SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved,
68 CTLFLAG_RW, &vmstats.v_free_reserved, 0,
69 "Number of pages reserved for deadlock");
70 SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target,
71 CTLFLAG_RW, &vmstats.v_inactive_target, 0,
72 "Number of pages desired inactive");
73 SYSCTL_UINT(_vm, VM_V_CACHE_MIN, v_cache_min,
74 CTLFLAG_RW, &vmstats.v_cache_min, 0,
75 "Min number of pages desired on cache queue");
76 SYSCTL_UINT(_vm, VM_V_CACHE_MAX, v_cache_max,
77 CTLFLAG_RW, &vmstats.v_cache_max, 0,
78 "Max number of pages in cached obj");
79 SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min,
80 CTLFLAG_RW, &vmstats.v_pageout_free_min, 0,
81 "Min number pages reserved for kernel");
82 SYSCTL_UINT(_vm, OID_AUTO, v_free_severe,
83 CTLFLAG_RW, &vmstats.v_free_severe, 0, "");
85 SYSCTL_STRUCT(_vm, VM_LOADAVG, loadavg, CTLFLAG_RD,
86 &averunnable, loadavg, "Machine loadaverage history");
88 static int do_vmtotal_callback(struct proc *p, void *data);
94 do_vmtotal(SYSCTL_HANDLER_ARGS)
97 struct vmtotal *totalp;
98 struct vm_object marker;
103 bzero(&total, sizeof(total));
105 bzero(&marker, sizeof(marker));
106 marker.type = OBJT_MARKER;
107 collisions = vmobj_token.t_collisions;
111 * Mark all objects as inactive.
113 lwkt_gettoken(&vmobj_token);
114 for (object = TAILQ_FIRST(&vm_object_list);
116 object = TAILQ_NEXT(object,object_list)) {
117 if (object->type == OBJT_MARKER)
119 vm_object_clear_flag(object, OBJ_ACTIVE);
121 lwkt_reltoken(&vmobj_token);
125 * Calculate process statistics.
127 allproc_scan(do_vmtotal_callback, totalp);
130 * Calculate object memory usage statistics.
132 lwkt_gettoken(&vmobj_token);
133 TAILQ_INSERT_HEAD(&vm_object_list, &marker, object_list);
136 for (object = TAILQ_FIRST(&vm_object_list);
138 object = TAILQ_NEXT(object, object_list)) {
140 * devices, like /dev/mem, will badly skew our totals.
141 * markers aren't real objects.
143 if (object->type == OBJT_MARKER)
145 if (object->type == OBJT_DEVICE)
147 if (object->size >= 0x7FFFFFFF) {
149 * Probably unbounded anonymous memory (really
150 * bounded by related vm_map_entry structures which
151 * we do not have access to in this loop).
153 totalp->t_vm += object->resident_page_count;
156 * It's questionable how useful this is but...
158 totalp->t_vm += object->size;
160 totalp->t_rm += object->resident_page_count;
161 if (object->flags & OBJ_ACTIVE) {
162 totalp->t_avm += object->size;
163 totalp->t_arm += object->resident_page_count;
165 if (object->shadow_count > 1) {
167 totalp->t_vmshr += object->size;
168 totalp->t_rmshr += object->resident_page_count;
169 if (object->flags & OBJ_ACTIVE) {
170 totalp->t_avmshr += object->size;
171 totalp->t_armshr += object->resident_page_count;
176 * Don't waste time unnecessarily
183 * Don't hog the vmobj_token if someone else wants it.
185 TAILQ_REMOVE(&vm_object_list, &marker, object_list);
186 TAILQ_INSERT_AFTER(&vm_object_list, object,
187 &marker, object_list);
189 if (collisions != vmobj_token.t_collisions) {
190 tsleep(&vm_object_list, 0, "breath", 1);
191 collisions = vmobj_token.t_collisions;
197 TAILQ_REMOVE(&vm_object_list, &marker, object_list);
198 lwkt_reltoken(&vmobj_token);
200 totalp->t_free = vmstats.v_free_count + vmstats.v_cache_count;
202 return (sysctl_handle_opaque(oidp, totalp, sizeof total, req));
206 * The caller must hold proc_token.
209 do_vmtotal_callback(struct proc *p, void *data)
211 struct vmtotal *totalp = data;
214 if (p->p_flags & P_SYSTEM)
217 FOREACH_LWP_IN_PROC(lp, p) {
218 switch (lp->lwp_stat) {
221 if ((p->p_flags & P_SWAPPEDOUT) == 0) {
222 if ((lp->lwp_flags & LWP_SINTR) == 0)
224 else if (lp->lwp_slptime < maxslp)
226 } else if (lp->lwp_slptime < maxslp) {
229 if (lp->lwp_slptime >= maxslp)
234 if (p->p_flags & P_SWAPPEDOUT)
238 if (p->p_stat == SIDL)
247 * Set while in vm_fault()
249 if (lp->lwp_flags & LWP_PAGING)
259 do_vmstats(SYSCTL_HANDLER_ARGS)
261 struct vmstats vms = vmstats;
262 return (sysctl_handle_opaque(oidp, &vms, sizeof(vms), req));
269 do_vmmeter(SYSCTL_HANDLER_ARGS)
271 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin);
272 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end);
276 bzero(&vmm, sizeof(vmm));
277 for (i = 0; i < ncpus; ++i) {
279 struct globaldata *gd = globaldata_find(i);
281 for (off = boffset; off <= eoffset; off += sizeof(u_int)) {
282 *(u_int *)((char *)&vmm + off) +=
283 *(u_int *)((char *)&gd->gd_cnt + off);
287 vmm.v_intr += vmm.v_ipi + vmm.v_timer;
288 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req));
292 * vcnt() - accumulate statistics from the cnt structure for each cpu
294 * The vmmeter structure is now per-cpu as well as global. Those
295 * statistics which can be kept on a per-cpu basis (to avoid cache
296 * stalls between cpus) can be moved to the per-cpu vmmeter. Remaining
297 * statistics, such as v_free_reserved, are left in the global
300 * (sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
305 vcnt(SYSCTL_HANDLER_ARGS)
311 for (i = 0; i < ncpus; ++i) {
312 struct globaldata *gd = globaldata_find(i);
313 count += *(int *)((char *)&gd->gd_cnt + offset);
315 return(SYSCTL_OUT(req, &count, sizeof(int)));
322 vcnt_intr(SYSCTL_HANDLER_ARGS)
327 for (i = 0; i < ncpus; ++i) {
328 struct globaldata *gd = globaldata_find(i);
330 count += gd->gd_cnt.v_intr + gd->gd_cnt.v_ipi +
333 return(SYSCTL_OUT(req, &count, sizeof(int)));
336 #define VMMETEROFF(var) offsetof(struct vmmeter, var)
338 SYSCTL_PROC(_vm, OID_AUTO, vmtotal, CTLTYPE_OPAQUE|CTLFLAG_RD,
339 0, sizeof(struct vmtotal), do_vmtotal, "S,vmtotal",
340 "System virtual memory aggregate");
341 SYSCTL_PROC(_vm, OID_AUTO, vmstats, CTLTYPE_OPAQUE|CTLFLAG_RD,
342 0, sizeof(struct vmstats), do_vmstats, "S,vmstats",
343 "System virtual memory statistics");
344 SYSCTL_PROC(_vm, OID_AUTO, vmmeter, CTLTYPE_OPAQUE|CTLFLAG_RD,
345 0, sizeof(struct vmmeter), do_vmmeter, "S,vmmeter",
346 "System statistics");
347 SYSCTL_NODE(_vm, OID_AUTO, stats, CTLFLAG_RW, 0, "VM meter stats");
348 SYSCTL_NODE(_vm_stats, OID_AUTO, sys, CTLFLAG_RW, 0, "VM meter sys stats");
349 SYSCTL_NODE(_vm_stats, OID_AUTO, vm, CTLFLAG_RW, 0, "VM meter vm stats");
350 SYSCTL_NODE(_vm_stats, OID_AUTO, misc, CTLFLAG_RW, 0, "VM meter misc stats");
352 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_swtch, CTLTYPE_UINT|CTLFLAG_RD,
353 0, VMMETEROFF(v_swtch), vcnt, "IU", "Context switches");
354 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_coll, CTLTYPE_UINT|CTLFLAG_RD,
355 0, VMMETEROFF(v_intrans_coll), vcnt, "IU", "Intransit map collisions (total)");
356 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intrans_wait, CTLTYPE_UINT|CTLFLAG_RD,
357 0, VMMETEROFF(v_intrans_wait), vcnt, "IU", "Intransit map collisions which blocked");
358 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_ints, CTLTYPE_UINT|CTLFLAG_RD,
359 0, VMMETEROFF(v_forwarded_ints), vcnt, "IU", "Forwarded interrupts due to MP lock");
360 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_hits, CTLTYPE_UINT|CTLFLAG_RD,
361 0, VMMETEROFF(v_forwarded_hits), vcnt, "IU", "Forwarded hits due to MP lock");
362 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_forwarded_misses, CTLTYPE_UINT|CTLFLAG_RD,
363 0, VMMETEROFF(v_forwarded_misses), vcnt, "IU", "Forwarded misses due to MP lock");
364 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_trap, CTLTYPE_UINT|CTLFLAG_RD,
365 0, VMMETEROFF(v_trap), vcnt, "IU", "Traps");
366 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_syscall, CTLTYPE_UINT|CTLFLAG_RD,
367 0, VMMETEROFF(v_syscall), vcnt, "IU", "Syscalls");
368 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_intr, CTLTYPE_UINT|CTLFLAG_RD,
369 0, VMMETEROFF(v_intr), vcnt_intr, "IU", "Hardware interrupts");
370 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_ipi, CTLTYPE_UINT|CTLFLAG_RD,
371 0, VMMETEROFF(v_ipi), vcnt, "IU", "Inter-processor interrupts");
372 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_timer, CTLTYPE_UINT|CTLFLAG_RD,
373 0, VMMETEROFF(v_timer), vcnt, "IU", "LAPIC timer interrupts");
374 SYSCTL_PROC(_vm_stats_sys, OID_AUTO, v_soft, CTLTYPE_UINT|CTLFLAG_RD,
375 0, VMMETEROFF(v_soft), vcnt, "IU", "Software interrupts");
376 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vm_faults, CTLTYPE_UINT|CTLFLAG_RD,
377 0, VMMETEROFF(v_vm_faults), vcnt, "IU", "VM faults");
378 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_faults, CTLTYPE_UINT|CTLFLAG_RD,
379 0, VMMETEROFF(v_cow_faults), vcnt, "IU", "COW faults");
380 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_cow_optim, CTLTYPE_UINT|CTLFLAG_RD,
381 0, VMMETEROFF(v_cow_optim), vcnt, "IU", "Optimized COW faults");
382 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_zfod, CTLTYPE_UINT|CTLFLAG_RD,
383 0, VMMETEROFF(v_zfod), vcnt, "IU", "Zero fill");
384 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ozfod, CTLTYPE_UINT|CTLFLAG_RD,
385 0, VMMETEROFF(v_ozfod), vcnt, "IU", "Optimized zero fill");
386 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapin, CTLTYPE_UINT|CTLFLAG_RD,
387 0, VMMETEROFF(v_swapin), vcnt, "IU", "Swapin operations");
388 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swapout, CTLTYPE_UINT|CTLFLAG_RD,
389 0, VMMETEROFF(v_swapout), vcnt, "IU", "Swapout operations");
390 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsin, CTLTYPE_UINT|CTLFLAG_RD,
391 0, VMMETEROFF(v_swappgsin), vcnt, "IU", "Swapin pages");
392 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_swappgsout, CTLTYPE_UINT|CTLFLAG_RD,
393 0, VMMETEROFF(v_swappgsout), vcnt, "IU", "Swapout pages");
394 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodein, CTLTYPE_UINT|CTLFLAG_RD,
395 0, VMMETEROFF(v_vnodein), vcnt, "IU", "Vnodein operations");
396 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodeout, CTLTYPE_UINT|CTLFLAG_RD,
397 0, VMMETEROFF(v_vnodeout), vcnt, "IU", "Vnodeout operations");
398 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsin, CTLTYPE_UINT|CTLFLAG_RD,
399 0, VMMETEROFF(v_vnodepgsin), vcnt, "IU", "Vnodein pages");
400 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vnodepgsout, CTLTYPE_UINT|CTLFLAG_RD,
401 0, VMMETEROFF(v_vnodepgsout), vcnt, "IU", "Vnodeout pages");
402 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_intrans, CTLTYPE_UINT|CTLFLAG_RD,
403 0, VMMETEROFF(v_intrans), vcnt, "IU", "In transit page blocking");
404 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_reactivated, CTLTYPE_UINT|CTLFLAG_RD,
405 0, VMMETEROFF(v_reactivated), vcnt, "IU", "Reactivated pages");
406 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdwakeups, CTLTYPE_UINT|CTLFLAG_RD,
407 0, VMMETEROFF(v_pdwakeups), vcnt, "IU", "Pagedaemon wakeups");
408 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_ppwakeups, CTLTYPE_UINT|CTLFLAG_RD,
409 0, VMMETEROFF(v_ppwakeups), vcnt, "IU", "vm_wait wakeups");
410 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pdpages, CTLTYPE_UINT|CTLFLAG_RD,
411 0, VMMETEROFF(v_pdpages), vcnt, "IU", "Pagedaemon page scans");
412 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_dfree, CTLTYPE_UINT|CTLFLAG_RD,
413 0, VMMETEROFF(v_dfree), vcnt, "IU", "Pages freed by daemon");
414 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_pfree, CTLTYPE_UINT|CTLFLAG_RD,
415 0, VMMETEROFF(v_pfree), vcnt, "IU", "Pages freed by exiting processes");
416 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_tfree, CTLTYPE_UINT|CTLFLAG_RD,
417 0, VMMETEROFF(v_tfree), vcnt, "IU", "Total pages freed");
418 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forks, CTLTYPE_UINT|CTLFLAG_RD,
419 0, VMMETEROFF(v_forks), vcnt, "IU", "Number of fork() calls");
420 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforks, CTLTYPE_UINT|CTLFLAG_RD,
421 0, VMMETEROFF(v_vforks), vcnt, "IU", "Number of vfork() calls");
422 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforks, CTLTYPE_UINT|CTLFLAG_RD,
423 0, VMMETEROFF(v_rforks), vcnt, "IU", "Number of rfork() calls");
424 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreads, CTLTYPE_UINT|CTLFLAG_RD,
425 0, VMMETEROFF(v_kthreads), vcnt, "IU", "Number of fork() calls by kernel");
426 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_forkpages, CTLTYPE_UINT|CTLFLAG_RD,
427 0, VMMETEROFF(v_forkpages), vcnt, "IU", "VM pages affected by fork()");
428 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_vforkpages, CTLTYPE_UINT|CTLFLAG_RD,
429 0, VMMETEROFF(v_vforkpages), vcnt, "IU", "VM pages affected by vfork()");
430 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_rforkpages, CTLTYPE_UINT|CTLFLAG_RD,
431 0, VMMETEROFF(v_rforkpages), vcnt, "IU", "VM pages affected by rfork()");
432 SYSCTL_PROC(_vm_stats_vm, OID_AUTO, v_kthreadpages, CTLTYPE_UINT|CTLFLAG_RD,
433 0, VMMETEROFF(v_kthreadpages), vcnt, "IU", "VM pages affected by fork() by kernel");
435 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
436 v_page_size, CTLFLAG_RD, &vmstats.v_page_size, 0,
437 "Page size in bytes");
438 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
439 v_page_count, CTLFLAG_RD, &vmstats.v_page_count, 0,
440 "Total number of pages in system");
441 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
442 v_free_reserved, CTLFLAG_RD, &vmstats.v_free_reserved, 0,
443 "Number of pages reserved for deadlock");
444 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
445 v_free_target, CTLFLAG_RD, &vmstats.v_free_target, 0,
446 "Number of pages desired free");
447 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
448 v_free_min, CTLFLAG_RD, &vmstats.v_free_min, 0,
449 "Minimum number of pages desired free");
450 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
451 v_free_count, CTLFLAG_RD, &vmstats.v_free_count, 0,
452 "Number of pages free");
453 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
454 v_wire_count, CTLFLAG_RD, &vmstats.v_wire_count, 0,
455 "Number of pages wired down");
456 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
457 v_active_count, CTLFLAG_RD, &vmstats.v_active_count, 0,
458 "Number of pages active");
459 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
460 v_inactive_target, CTLFLAG_RD, &vmstats.v_inactive_target, 0,
461 "Number of pages desired inactive");
462 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
463 v_inactive_count, CTLFLAG_RD, &vmstats.v_inactive_count, 0,
464 "Number of pages inactive");
465 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
466 v_cache_count, CTLFLAG_RD, &vmstats.v_cache_count, 0,
467 "Number of pages on buffer cache queue");
468 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
469 v_cache_min, CTLFLAG_RD, &vmstats.v_cache_min, 0,
470 "Min number of pages desired on cache queue");
471 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
472 v_cache_max, CTLFLAG_RD, &vmstats.v_cache_max, 0,
473 "Max number of pages in cached obj");
474 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
475 v_pageout_free_min, CTLFLAG_RD, &vmstats.v_pageout_free_min, 0,
476 "Min number pages reserved for kernel");
477 SYSCTL_UINT(_vm_stats_vm, OID_AUTO,
478 v_interrupt_free_min, CTLFLAG_RD, &vmstats.v_interrupt_free_min, 0,
479 "Reserved number of pages for int code");
480 SYSCTL_INT(_vm_stats_misc, OID_AUTO,
481 zero_page_count, CTLFLAG_RD, &vm_page_zero_count, 0,
482 "Number of zeroing pages");
488 do_vmmeter_pcpu(SYSCTL_HANDLER_ARGS)
490 int boffset = offsetof(struct vmmeter, vmmeter_uint_begin);
491 int eoffset = offsetof(struct vmmeter, vmmeter_uint_end);
492 struct globaldata *gd = arg1;
496 bzero(&vmm, sizeof(vmm));
497 for (off = boffset; off <= eoffset; off += sizeof(u_int)) {
498 *(u_int *)((char *)&vmm + off) +=
499 *(u_int *)((char *)&gd->gd_cnt + off);
501 vmm.v_intr += vmm.v_ipi + vmm.v_timer;
502 return (sysctl_handle_opaque(oidp, &vmm, sizeof(vmm), req));
506 * Called from the low level boot code only.
509 vmmeter_init(void *dummy __unused)
513 for (i = 0; i < ncpus; ++i) {
514 struct sysctl_ctx_list *ctx;
515 struct sysctl_oid *oid;
516 struct globaldata *gd;
519 ksnprintf(name, sizeof(name), "cpu%d", i);
521 ctx = kmalloc(sizeof(*ctx), M_TEMP, M_WAITOK);
522 sysctl_ctx_init(ctx);
523 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_STATIC_CHILDREN(_vm),
524 OID_AUTO, name, CTLFLAG_RD, 0, "");
526 gd = globaldata_find(i);
527 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
528 "vmmeter", CTLTYPE_OPAQUE|CTLFLAG_RD,
529 gd, sizeof(struct vmmeter), do_vmmeter_pcpu,
530 "S,vmmeter", "System per-cpu statistics");
533 SYSINIT(vmmeter, SI_SUB_PSEUDO, SI_ORDER_ANY, vmmeter_init, 0);