4 * cc -I/usr/src/sys psinfo.c -o ~/bin/psinfo -lkvm
6 * Dump information about processes and threads in the system.
8 * Copyright (c) 2019 The DragonFly Project. All rights reserved.
10 * This code is derived from software contributed to The DragonFly Project
11 * by Matthew Dillon <dillon@backplane.com>
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
23 * 3. Neither the name of The DragonFly Project nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific, prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
32 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #define _KERNEL_STRUCTURES_
42 #include <sys/param.h>
44 #include <sys/malloc.h>
45 #include <sys/signalvar.h>
46 #include <sys/vnode.h>
47 #include <sys/namecache.h>
48 #include <sys/sysctl.h>
49 #include <sys/thread.h>
53 #include <vm/vm_page.h>
54 #include <vm/vm_kern.h>
55 #include <vm/vm_page.h>
56 #include <vm/vm_object.h>
57 #include <vm/vm_map.h>
58 #include <vm/swap_pager.h>
59 #include <vm/vnode_pager.h>
77 vm_offset_t total_empty;
78 vm_offset_t total_used;
79 vm_offset_t total_used_byid[VM_SUBSYS_LIMIT];
82 static const char *formatnum(int64_t value);
83 static const char *entryid(vm_subsys_t id);
84 static void mapscan(kvm_t *kd, vm_map_entry_t kptr, vm_map_entry_t ken,
87 static void kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes);
89 static void dumpproc(kvm_t *kd, struct kinfo_proc *kp);
92 main(int ac, char **av)
94 const char *corefile = NULL;
95 const char *sysfile = NULL;
101 struct vm_map_entry entry;
102 struct vm_map_entry *kptr;
103 struct kinfo_proc *kp;
105 while ((ch = getopt(ac, av, "M:N:dv")) != -1) {
120 fprintf(stderr, "%s [-M core] [-N system]\n", av[0]);
127 if ((kd = kvm_open(sysfile, corefile, NULL, O_RDONLY, "kvm:")) == NULL) {
131 if (kvm_nlist(kd, Nl) != 0) {
136 kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
137 for (i = 0; i < count; ++i) {
138 dumpproc(kd, &kp[i]);
165 dumpproc(kvm_t *kd, struct kinfo_proc *kp)
169 struct vm_map_entry entry;
170 struct vm_map_backing *ba;
171 struct vm_object obj;
175 printf("Process %6d:%-3d %6.6s (%s)",
176 kp->kp_pid, kp->kp_lwp.kl_tid,
177 kp->kp_lwp.kl_wmesg, kp->kp_comm);
179 if ((int)kp->kp_pid <= 0) {
183 kkread(kd, (u_long)kp->kp_paddr, &p, sizeof(p));
184 kkread(kd, (u_long)p.p_vmspace, &vms, sizeof(vms));
186 printf(" (%6.2fM resident, %6.2f wired)\n",
187 vms.vm_pmap.pm_stats.resident_count * 4096.0 / 1048576.0,
188 vms.vm_pmap.pm_stats.wired_count * 4096.0 / 1048576.0);
190 kptr = kvm_vm_map_entry_first(kd, &vms.vm_map, &entry);
193 printf(" entry %016jx-%016jx eflags=%04x prot=%02x max_prot=%02x",
194 entry.ba.start, entry.ba.end,
195 entry.eflags, entry.protection, entry.max_protection);
199 if (++bacount == 3) {
203 printf(" [obj=%016jx,off=%016jx",
204 (uintptr_t)ba->object, ba->offset);
206 kkread(kd, (u_long)ba->object, &obj, sizeof(obj));
207 if (obj.flags & OBJ_DEAD)
212 if (ba->backing_ba == NULL)
214 kkread(kd, (u_long)ba->backing_ba, ba, sizeof(*ba));
217 kptr = kvm_vm_map_entry_next(kd, kptr, &entry);
224 kkread(kd, Nl[0].n_value, &kmap, sizeof(kmap));
225 last = kmap.min_addr;
227 kptr = kvm_vm_map_entry_first(kd, &kmap, &entry);
229 mapscan(kd, kptr, &entry, &last);
230 kptr = kvm_vm_map_entry_next(kd, kptr, &entry);
233 printf("%4ldM 0x%016jx %08lx-%08lx (%6s) EMPTY\n",
234 total_used / 1024 / 1024,
237 formatnum(kmap.max_addr - last));
238 total_empty += kmap.max_addr - last;
240 printf("-----------------------------------------------\n");
241 for (i = 0; i < VM_SUBSYS_LIMIT; ++i)
242 printf("Total-id: %9s %s\n", entryid(i), formatnum(total_used_byid[i]));
244 printf("-----------------------------------------------\n");
245 printf("Total empty space: %s\n", formatnum(total_empty));
246 printf("Total used space: %s\n", formatnum(total_used));
250 formatnum(int64_t value)
263 if (value < 100000) {
266 } else if (value < 1 * 1024 * 1024) {
269 } else if (value < 1024 * 1024 * 1024) {
272 } else if (value < 1024LL * 1024 * 1024 * 1024) {
273 div = 1024 * 1024 * 1024;
276 div = 1024LL * 1024 * 1024 * 1024;
280 snprintf(buf, sizeof(buf), "");
281 } else if (div == 1) {
282 snprintf(buf, sizeof(buf), "%s%7.0f%s",
284 (double)value / (double)div,
287 snprintf(buf, sizeof(buf), "%s%6.2f%s",
289 (double)value / (double)div,
296 mapscan(kvm_t *kd, vm_map_entry_t kptr, vm_map_entry_t ken, vm_offset_t *lastp)
298 if (*lastp != ken->ba.start) {
299 printf("%4ldM %p %08lx-%08lx (%s) EMPTY\n",
300 total_used / 1024 / 1024,
302 *lastp, ken->ba.start,
303 formatnum(ken->ba.start - *lastp));
304 total_empty += ken->ba.start - *lastp;
306 printf("%4ldM %p %08lx-%08lx (%6ldK) id=%-8s object=%p\n",
307 total_used / 1024 / 1024,
309 ken->ba.start, ken->ba.end,
310 (ken->ba.end - ken->ba.start) / 1024,
312 ken->object.map_object);
313 total_used += ken->ba.end - ken->ba.start;
314 if (ken->id < VM_SUBSYS_LIMIT)
315 total_used_byid[ken->id] += ken->ba.end - ken->ba.start;
317 total_used_byid[0] += ken->ba.end - ken->ba.start;
318 *lastp = ken->ba.end;
323 entryid(vm_subsys_t id)
328 case VM_SUBSYS_UNKNOWN:
330 case VM_SUBSYS_KMALLOC:
332 case VM_SUBSYS_STACK:
334 case VM_SUBSYS_IMGACT:
338 case VM_SUBSYS_RESERVED:
346 case VM_SUBSYS_SHMEM:
348 case VM_SUBSYS_SYSMAP:
354 case VM_SUBSYS_BOGUS:
358 case VM_SUBSYS_BUFDATA:
364 case VM_SUBSYS_PVENTRY:
368 case VM_SUBSYS_MAPDEV:
370 case VM_SUBSYS_ZALLOC:
375 case VM_SUBSYS_CONTIG:
379 case VM_SUBSYS_DRM_GEM:
381 case VM_SUBSYS_DRM_SCAT:
383 case VM_SUBSYS_DRM_VMAP:
385 case VM_SUBSYS_DRM_TTM:
387 case VM_SUBSYS_HAMMER:
389 case VM_SUBSYS_VMPGHASH:
394 snprintf(buf, sizeof(buf), "%d", (int)id);
402 kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes)
404 if (kvm_read(kd, addr, buf, nbytes) != nbytes) {