Annotation of src/usr.bin/systat/uvm.c, Revision 1.8
1.7 mpi 1: /* $OpenBSD: uvm.c,v 1.6 2022/11/27 23:18:54 kn Exp $ */
1.1 krw 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:
36: void print_uvm(void);
37: int read_uvm(void);
38: int select_uvm(void);
39:
40: void print_uvmexp_field(field_def *, field_def *, int *, int *, const char *);
41: void print_uvmexp_line(int);
42:
43: struct uvmexp uvmexp;
44: struct uvmexp last_uvmexp;
45:
46: struct uvmline {
47: int *v1;
48: int *ov1;
49: char *n1;
50: int *v2;
51: int *ov2;
52: char *n2;
53: int *v3;
54: int *ov3;
55: char *n3;
56: };
57:
58: struct uvmline uvmline[] = {
59: { NULL, NULL, "Page Counters",
60: NULL, NULL, "Stats Counters",
61: NULL, NULL, "Fault Counters" },
62: { &uvmexp.npages, &last_uvmexp.npages, "npages",
63: &uvmexp.faults, &last_uvmexp.faults, "faults",
64: &uvmexp.fltnoram, &last_uvmexp.fltnoram, "fltnoram" },
65: { &uvmexp.free, &last_uvmexp.free, "free",
66: &uvmexp.traps, &last_uvmexp.traps, "traps",
67: &uvmexp.fltnoanon, &last_uvmexp.fltnoanon, "fltnoanon" },
68: { &uvmexp.active, &last_uvmexp.active, "active",
69: &uvmexp.intrs, &last_uvmexp.intrs, "intrs",
70: &uvmexp.fltnoamap, &last_uvmexp.fltnoamap, "fltnoamap" },
71: { &uvmexp.inactive, &last_uvmexp.inactive, "inactive",
72: &uvmexp.swtch, &last_uvmexp.swtch, "swtch",
73: &uvmexp.fltpgwait, &last_uvmexp.fltpgwait, "fltpgwait" },
74: { &uvmexp.paging, &last_uvmexp.paging, "paging",
75: &uvmexp.softs, &last_uvmexp.softs, "softs",
76: &uvmexp.fltpgrele, &last_uvmexp.fltpgrele, "fltpgrele" },
77: { &uvmexp.wired, &last_uvmexp.wired, "wired",
78: &uvmexp.syscalls, &last_uvmexp.syscalls, "syscalls",
79: &uvmexp.fltrelck, &last_uvmexp.fltrelck, "fltrelck" },
80: { &uvmexp.zeropages, &last_uvmexp.zeropages, "zeropages",
81: &uvmexp.pageins, &last_uvmexp.pageins, "pageins",
82: &uvmexp.fltrelckok, &last_uvmexp.fltrelckok, "fltrelckok" },
1.8 ! mpi 83: { &uvmexp.reserve_pagedaemon, &last_uvmexp.reserve_pagedaemon,
! 84: "reserve_pagedaemon",
1.4 krw 85: &uvmexp.pgswapin, &last_uvmexp.pgswapin, "pgswapin",
1.1 krw 86: &uvmexp.fltanget, &last_uvmexp.fltanget, "fltanget" },
1.8 ! mpi 87: { &uvmexp.reserve_kernel, &last_uvmexp.reserve_kernel, "reserve_kernel",
1.4 krw 88: &uvmexp.pgswapout, &last_uvmexp.pgswapout, "pgswapout",
1.1 krw 89: &uvmexp.fltanretry, &last_uvmexp.fltanretry, "fltanretry" },
1.3 krw 90: { NULL, NULL, NULL,
1.4 krw 91: &uvmexp.forks, &last_uvmexp.forks, "forks",
1.1 krw 92: &uvmexp.fltamcopy, &last_uvmexp.fltamcopy, "fltamcopy" },
1.4 krw 93: { NULL, NULL, "Pageout Params",
94: &uvmexp.forks_ppwait, &last_uvmexp.forks_ppwait, "forks_ppwait",
1.1 krw 95: &uvmexp.fltnamap, &last_uvmexp.fltnamap, "fltnamap" },
1.4 krw 96: { &uvmexp.freemin, &last_uvmexp.freemin, "freemin",
97: &uvmexp.forks_sharevm, &last_uvmexp.forks_sharevm, "forks_sharevm",
1.1 krw 98: &uvmexp.fltnomap, &last_uvmexp.fltnomap, "fltnomap" },
1.4 krw 99: { &uvmexp.freetarg, &last_uvmexp.freetarg, "freetarg",
100: &uvmexp.pga_zerohit, &last_uvmexp.pga_zerohit, "pga_zerohit",
1.1 krw 101: &uvmexp.fltlget, &last_uvmexp.fltlget, "fltlget" },
1.4 krw 102: { &uvmexp.inactarg, &last_uvmexp.inactarg, "inactarg",
103: &uvmexp.pga_zeromiss, &last_uvmexp.pga_zeromiss, "pga_zeromiss",
1.1 krw 104: &uvmexp.fltget, &last_uvmexp.fltget, "fltget" },
105: { &uvmexp.wiredmax, &last_uvmexp.wiredmax, "wiredmax",
106: NULL, NULL, NULL,
1.4 krw 107: &uvmexp.flt_anon, &last_uvmexp.flt_anon, "flt_anon" },
1.1 krw 108: { &uvmexp.anonmin, &last_uvmexp.anonmin, "anonmin",
1.4 krw 109: NULL, NULL, "Daemon Counters",
110: &uvmexp.flt_acow, &last_uvmexp.flt_acow, "flt_acow" },
1.1 krw 111: { &uvmexp.vtextmin, &last_uvmexp.vtextmin, "vtextmin",
1.4 krw 112: &uvmexp.pdwoke, &last_uvmexp.pdwoke, "pdwoke",
113: &uvmexp.flt_obj, &last_uvmexp.flt_obj, "flt_obj" },
1.1 krw 114: { &uvmexp.vnodemin, &last_uvmexp.vnodemin, "vnodemin",
1.4 krw 115: &uvmexp.pdrevs, &last_uvmexp.pdrevs, "pdrevs",
116: &uvmexp.flt_prcopy, &last_uvmexp.flt_prcopy, "flt_prcopy" },
1.1 krw 117: { &uvmexp.anonminpct, &last_uvmexp.anonminpct, "anonminpct",
1.4 krw 118: &uvmexp.pdswout, &last_uvmexp.pdswout, "pdswout",
119: &uvmexp.flt_przero, &last_uvmexp.flt_przero, "flt_przero" },
1.1 krw 120: { &uvmexp.vtextminpct, &last_uvmexp.vtextminpct, "vtextminpct",
121: &uvmexp.swpgonly, &last_uvmexp.swpgonly, "swpgonly",
1.4 krw 122: NULL, NULL, NULL },
1.1 krw 123: { &uvmexp.vnodeminpct, &last_uvmexp.vnodeminpct, "vnodeminpct",
1.4 krw 124: &uvmexp.pdfreed, &last_uvmexp.pdfreed, "pdfreed",
125: NULL, NULL, "Swap Counters" },
1.1 krw 126: { NULL, NULL, NULL,
1.4 krw 127: &uvmexp.pdscans, &last_uvmexp.pdscans, "pdscans",
128: &uvmexp.nswapdev, &last_uvmexp.nswapdev, "nswapdev" },
1.1 krw 129: { NULL, NULL, "Misc Counters",
1.4 krw 130: &uvmexp.pdanscan, &last_uvmexp.pdanscan, "pdanscan",
131: &uvmexp.swpages, &last_uvmexp.swpages, "swpages" },
1.1 krw 132: { &uvmexp.fpswtch, &last_uvmexp.fpswtch, "fpswtch",
1.4 krw 133: &uvmexp.pdobscan, &last_uvmexp.pdobscan, "pdobscan",
134: &uvmexp.swpginuse, &last_uvmexp.swpginuse, "swpginuse" },
1.1 krw 135: { &uvmexp.kmapent, &last_uvmexp.kmapent, "kmapent",
1.4 krw 136: &uvmexp.pdreact, &last_uvmexp.pdreact, "pdreact",
1.6 kn 137: &uvmexp.swpgonly, &last_uvmexp.swpgonly, "swpgonly" },
1.1 krw 138: { NULL, NULL, NULL,
1.4 krw 139: &uvmexp.pdbusy, &last_uvmexp.pdbusy, "pdbusy",
1.6 kn 140: &uvmexp.nswget, &last_uvmexp.nswget, "nswget" },
1.1 krw 141: { NULL, NULL, "Constants",
1.4 krw 142: &uvmexp.pdpageouts, &last_uvmexp.pdpageouts, "pdpageouts",
143: NULL, NULL, NULL },
1.1 krw 144: { &uvmexp.pagesize, &last_uvmexp.pagesize, "pagesize",
1.4 krw 145: &uvmexp.pdpending, &last_uvmexp.pdpending, "pdpending",
1.8 ! mpi 146: NULL, NULL, NULL },
1.1 krw 147: { &uvmexp.pagemask, &last_uvmexp.pagemask, "pagemask",
1.4 krw 148: &uvmexp.pddeact, &last_uvmexp.pddeact, "pddeact",
1.8 ! mpi 149: NULL, NULL, NULL },
1.1 krw 150: { &uvmexp.pageshift, &last_uvmexp.pageshift, "pageshift",
151: NULL, NULL, NULL,
1.8 ! mpi 152: NULL, NULL, NULL }
1.1 krw 153: };
154:
155: field_def fields_uvm[] = {
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: {"", 5,10,1, FLD_ALIGN_RIGHT, -1,0,0,0 },
161: {"", 18,19,1, FLD_ALIGN_LEFT, -1,0,0,0 },
162: };
163:
164: #define FLD_VALUE1 FIELD_ADDR(fields_uvm, 0)
165: #define FLD_NAME1 FIELD_ADDR(fields_uvm, 1)
166: #define FLD_VALUE2 FIELD_ADDR(fields_uvm, 2)
167: #define FLD_NAME2 FIELD_ADDR(fields_uvm, 3)
168: #define FLD_VALUE3 FIELD_ADDR(fields_uvm, 4)
169: #define FLD_NAME3 FIELD_ADDR(fields_uvm, 5)
170:
171: /* Define views */
172: field_def *view_uvm_0[] = {
173: FLD_VALUE1, FLD_NAME1,
174: FLD_VALUE2, FLD_NAME2,
175: FLD_VALUE3, FLD_NAME3,
176: NULL
177: };
178:
179: /* Define view managers */
180: struct view_manager uvm_mgr = {
181: "UVM", select_uvm, read_uvm, NULL, print_header,
182: print_uvm, keyboard_callback, NULL, NULL
183: };
184:
185: field_view uvm_view = {
186: view_uvm_0,
187: "uvm",
188: '5',
189: &uvm_mgr
190: };
191:
192: int
193: select_uvm(void)
194: {
195: return (0);
196: }
197:
198: int
199: read_uvm(void)
200: {
201: static int uvmexp_mib[2] = { CTL_VM, VM_UVMEXP };
202: size_t size;
203:
204: num_disp = nitems(uvmline);
205: memcpy(&last_uvmexp, &uvmexp, sizeof(uvmexp));
206:
207: size = sizeof(uvmexp);
1.5 deraadt 208: if (sysctl(uvmexp_mib, 2, &uvmexp, &size, NULL, 0) == -1) {
1.1 krw 209: error("Can't get VM_UVMEXP: %s\n", strerror(errno));
210: memset(&uvmexp, 0, sizeof(uvmexp));
211: }
212:
213: return 0;
214: }
215:
216: void
217: print_uvmexp_field(field_def *fvalue, field_def *fname, int *new, int *old,
218: const char *name)
219: {
220: char *uppername;
1.2 bluhm 221: size_t len, i;
1.1 krw 222:
223: if (new == NULL && name == NULL)
224: return;
225:
226: if (new == NULL) {
227: print_fld_str(fvalue, "=====");
228: print_fld_str(fname, name);
229: return;
230: }
231:
232: if (*new != 0)
233: print_fld_ssize(fvalue, *new);
234: if (*new == *old) {
235: print_fld_str(fname, name);
236: return;
237: }
1.2 bluhm 238: len = strlen(name);
239: uppername = malloc(len + 1);
1.1 krw 240: if (uppername == NULL)
1.2 bluhm 241: err(1, "malloc");
242: for (i = 0; i < len; i++)
1.1 krw 243: uppername[i] = toupper(name[i]);
1.2 bluhm 244: uppername[len] = '\0';
1.1 krw 245: print_fld_str(fname, uppername);
246: free(uppername);
247: }
248:
249: void
250: print_uvm(void)
251: {
252: struct uvmline *l;
253: int i, maxline;
254:
255: maxline = nitems(uvmline);
256: if (maxline > (dispstart + maxprint))
257: maxline = dispstart + maxprint;
258:
259: for (i = dispstart; i < nitems(uvmline); i++) {
260: l = &uvmline[i];
261: print_uvmexp_field(FLD_VALUE1, FLD_NAME1, l->v1, l->ov1, l->n1);
262: print_uvmexp_field(FLD_VALUE2, FLD_NAME2, l->v2, l->ov2, l->n2);
263: print_uvmexp_field(FLD_VALUE3, FLD_NAME3, l->v3, l->ov3, l->n3);
264: end_line();
265: }
266: }
267:
268: int
269: inituvm(void)
270: {
271: add_view(&uvm_view);
272: read_uvm();
273:
274: return(0);
275: }
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