2 * Copyright (c) 1980, 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 static char sccsid[] = "@(#)pigs.c 8.2 (Berkeley) 9/23/93";
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
44 * Pigs display from Bill Reeves at Lucasfilm
47 #include <sys/param.h>
49 #include <sys/sysctl.h>
61 int compar(const void *, const void *);
64 static struct p_times {
66 struct kinfo_proc *pt_kp;
69 static long stime[CPUSTATES];
76 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
94 register int i, j, y, k;
97 const char *uname, *pname;
102 /* Accumulate the percent of cpu per user. */
104 for (i = 0; i <= nproc; i++) {
105 /* Accumulate the percentage. */
106 total += pt[i].pt_pctcpu;
113 qsort(pt, nproc + 1, sizeof (struct p_times), compar);
116 if (i > wnd->_maxy-1)
118 for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) {
119 if (pt[k].pt_kp == NULL) {
124 uname = user_from_uid(pt[k].pt_kp->ki_uid, 0);
125 pname = pt[k].pt_kp->ki_comm;
129 mvwaddstr(wnd, y, 0, uname);
130 snprintf(pidname, sizeof(pidname), "%10.10s", pname);
131 mvwaddstr(wnd, y, 9, pidname);
133 for (j = pt[k].pt_pctcpu*factor + 0.5; j > 0; j--)
136 wmove(wnd, y, 0); wclrtobot(wnd);
147 err = sysctlbyname("kern.cp_time", &stime, &len, NULL, 0);
148 if (err || len != sizeof(stime)) {
149 perror("kern.cp_time");
154 err = sysctlbyname("kern.ccpu", &ccpu, &len, NULL, 0);
155 if (err || len != sizeof(ccpu)) {
160 len = sizeof(fscale);
161 err = sysctlbyname("kern.fscale", &fscale, &len, NULL, 0);
162 if (err || len != sizeof(fscale)) {
163 perror("kern.fscale");
167 lccpu = log((double) ccpu / fscale);
178 struct kinfo_proc *kpp;
179 long c_time[CPUSTATES];
181 static int lastnproc = 0;
185 if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) {
186 error("%s", kvm_geterr(kd));
191 if (nproc > lastnproc) {
194 malloc((nproc + 1) * sizeof(struct p_times))) == NULL) {
195 error("Out of memory");
201 * calculate %cpu for each proc
203 for (i = 0; i < nproc; i++) {
204 pt[i].pt_kp = &kpp[i];
205 pctp = &pt[i].pt_pctcpu;
206 ftime = kpp[i].ki_swtime;
207 if (ftime == 0 || (kpp[i].ki_sflag & PS_INMEM) == 0)
210 *pctp = ((double) kpp[i].ki_pctcpu /
211 fscale) / (1.0 - exp(ftime * lccpu));
214 * and for the imaginary "idle" process
216 len = sizeof(c_time);
217 err = sysctlbyname("kern.cp_time", &c_time, &len, NULL, 0);
218 if (err || len != sizeof(c_time)) {
219 perror("kern.cp_time");
223 for (i = 0; i < CPUSTATES; i++)
224 t += c_time[i] - stime[i];
227 pt[nproc].pt_kp = NULL;
228 pt[nproc].pt_pctcpu = (c_time[CP_IDLE] - stime[CP_IDLE]) / t;
229 for (i = 0; i < CPUSTATES; i++)
230 stime[i] = c_time[i];
238 mvwaddstr(wnd, 0, 20,
239 "/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100");
246 return (((const struct p_times *) a)->pt_pctcpu >
247 ((const struct p_times *) b)->pt_pctcpu)? -1: 1;