4 * cc -I/usr/src/sys vmpagequeues.c -o ~/bin/vmpagequeues -lkvm
8 * Outputs statistics on PQ_FREE (-f, default), or -c, -i, -a for
9 * PQ_CACHE, PQ_INACTIVE, and PQ_ACTIVE.
11 * Copyright (c) 2016 The DragonFly Project. All rights reserved.
13 * This code is derived from software contributed to The DragonFly Project
14 * by Matthew Dillon <dillon@backplane.com>
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in
24 * the documentation and/or other materials provided with the
26 * 3. Neither the name of The DragonFly Project nor the names of its
27 * contributors may be used to endorse or promote products derived
28 * from this software without specific, prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
33 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
34 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
35 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
36 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
38 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
39 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
40 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44 #define _KERNEL_STRUCTURES_
45 #include <sys/param.h>
47 #include <sys/malloc.h>
48 #include <sys/signalvar.h>
49 #include <sys/vnode.h>
50 #include <sys/namecache.h>
51 #include <sys/slaballoc.h>
54 #include <vm/vm_page.h>
55 #include <vm/vm_kern.h>
56 #include <vm/vm_page.h>
57 #include <vm/vm_object.h>
58 #include <vm/swap_pager.h>
59 #include <vm/vnode_pager.h>
71 { "_vm_page_buckets" },
72 { "_vm_page_hash_mask" },
74 { "_vm_page_queues" },
81 static void kkread_vmpage(kvm_t *kd, u_long addr, vm_page_t m);
82 static void kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes);
83 static int kkread_err(kvm_t *kd, u_long addr, void *buf, size_t nbytes);
86 main(int ac, char **av)
88 const char *corefile = NULL;
89 const char *sysfile = NULL;
94 struct vpgqueues queues[PQ_COUNT];
96 while ((ch = getopt(ac, av, "M:N:dviacf")) != -1) {
123 fprintf(stderr, "%s [-M core] [-N system]\n", av[0]);
130 if ((kd = kvm_open(sysfile, corefile, NULL, O_RDONLY, "kvm:")) == NULL) {
134 if (kvm_nlist(kd, Nl) != 0) {
140 kkread(kd, Nl[0].n_value, queues, sizeof(queues));
141 for (i = 0; i < PQ_L2_SIZE; ++i) {
142 struct vpgqueues *vpq = &queues[q+i];
145 printf("\t%6d", vpq->lcnt);
158 kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes)
160 if (kvm_read(kd, addr, buf, nbytes) != nbytes) {
167 kkread_err(kvm_t *kd, u_long addr, void *buf, size_t nbytes)
169 if (kvm_read(kd, addr, buf, nbytes) != nbytes) {