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33 * @(#)pigs.c 8.2 (Berkeley) 9/23/93
37 * Pigs display from Bill Reeves at Lucasfilm
40 #include <sys/param.h>
41 #include <sys/dkstat.h>
45 #include <sys/sysctl.h>
56 int compar __P((const void *, const void *));
59 static struct p_times {
61 struct kinfo_proc *pt_kp;
64 static long stime[CPUSTATES];
71 return (subwin(stdscr, LINES-5-1, 0, 5, 0));
89 register int i, j, y, k;
93 char *uname, *pname, pidname[30];
97 /* Accumulate the percent of cpu per user. */
99 for (i = 0; i <= nproc; i++) {
100 /* Accumulate the percentage. */
101 total += pt[i].pt_pctcpu;
108 qsort(pt, nproc + 1, sizeof (struct p_times), compar);
111 if (i > wnd->_maxy-1)
113 for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) {
114 if (pt[k].pt_kp == NULL) {
119 ep = &pt[k].pt_kp->kp_eproc;
120 uname = (char *)user_from_uid(ep->e_ucred.cr_uid, 0);
121 pname = pt[k].pt_kp->kp_thread.td_comm;
125 mvwaddstr(wnd, y, 0, uname);
126 snprintf(pidname, sizeof(pidname), "%10.10s", pname);
127 mvwaddstr(wnd, y, 9, pidname);
129 for (j = pt[k].pt_pctcpu*factor + 0.5; j > 0; j--)
132 wmove(wnd, y, 0); wclrtobot(wnd);
135 static struct nlist namelist[] = {
152 if (namelist[X_FIRST].n_type == 0) {
153 if (kvm_nlist(kd, namelist)) {
157 if (namelist[X_FIRST].n_type == 0) {
158 error("namelist failed");
162 KREAD(NPTR(X_CPTIME), stime, sizeof (stime));
163 NREAD(X_CCPU, &ccpu, sizeof(ccpu));
164 NREAD(X_FSCALE, &fscale, LONG);
165 lccpu = log((double) ccpu / fscale);
175 register struct proc *pp;
176 register float *pctp;
177 struct kinfo_proc *kpp;
178 long ctime[CPUSTATES];
180 static int lastnproc = 0;
182 if (namelist[X_FIRST].n_type == 0)
184 if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) {
185 error("%s", kvm_geterr(kd));
190 if (nproc > lastnproc) {
193 malloc((nproc + 1) * sizeof(struct p_times))) == NULL) {
194 error("Out of memory");
200 * calculate %cpu for each proc
202 for (i = 0; i < nproc; i++) {
203 pt[i].pt_kp = &kpp[i];
204 pp = &kpp[i].kp_proc;
205 pctp = &pt[i].pt_pctcpu;
207 if (time == 0 || (pp->p_flag & P_INMEM) == 0)
210 *pctp = ((double) pp->p_pctcpu /
211 fscale) / (1.0 - exp(time * lccpu));
214 * and for the imaginary "idle" process
216 KREAD(NPTR(X_CPTIME), ctime, sizeof (ctime));
218 for (i = 0; i < CPUSTATES; i++)
219 t += ctime[i] - stime[i];
222 pt[nproc].pt_kp = NULL;
223 pt[nproc].pt_pctcpu = (ctime[CP_IDLE] - stime[CP_IDLE]) / t;
224 for (i = 0; i < CPUSTATES; i++)
233 mvwaddstr(wnd, 0, 20,
234 "/0 /10 /20 /30 /40 /50 /60 /70 /80 /90 /100");
241 return (((struct p_times *) a)->pt_pctcpu >
242 ((struct p_times *) b)->pt_pctcpu)? -1: 1;