1 /*- 2 * Copyright (c) 1980, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if 0 31 #ifndef lint 32 static char sccsid[] = "@(#)pigs.c 8.2 (Berkeley) 9/23/93"; 33 #endif /* not lint */ 34 #endif 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 /* 40 * Pigs display from Bill Reeves at Lucasfilm 41 */ 42 43 #include <sys/param.h> 44 #include <sys/proc.h> 45 #include <sys/sysctl.h> 46 #include <sys/time.h> 47 #include <sys/user.h> 48 49 #include <curses.h> 50 #include <math.h> 51 #include <pwd.h> 52 #include <stdlib.h> 53 54 #include "systat.h" 55 #include "extern.h" 56 57 int compar(const void *, const void *); 58 59 static int nproc; 60 static struct p_times { 61 float pt_pctcpu; 62 struct kinfo_proc *pt_kp; 63 } *pt; 64 65 static int fscale; 66 static double lccpu; 67 68 WINDOW * 69 openpigs(void) 70 { 71 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0)); 72 } 73 74 void 75 closepigs(WINDOW *w) 76 { 77 if (w == NULL) 78 return; 79 wclear(w); 80 wrefresh(w); 81 delwin(w); 82 } 83 84 85 void 86 showpigs(void) 87 { 88 int i, j, y, k; 89 const char *uname, *pname; 90 char pidname[30]; 91 92 if (pt == NULL) 93 return; 94 95 qsort(pt, nproc, sizeof (struct p_times), compar); 96 y = 1; 97 i = nproc; 98 if (i > wnd->_maxy-1) 99 i = wnd->_maxy-1; 100 for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) { 101 uname = user_from_uid(pt[k].pt_kp->ki_uid, 0); 102 pname = pt[k].pt_kp->ki_comm; 103 wmove(wnd, y, 0); 104 wclrtoeol(wnd); 105 mvwaddstr(wnd, y, 0, uname); 106 snprintf(pidname, sizeof(pidname), "%10.10s", pname); 107 mvwaddstr(wnd, y, 9, pidname); 108 wmove(wnd, y, 20); 109 for (j = pt[k].pt_pctcpu * 50 + 0.5; j > 0; j--) 110 waddch(wnd, 'X'); 111 } 112 wmove(wnd, y, 0); wclrtobot(wnd); 113 } 114 115 int 116 initpigs(void) 117 { 118 fixpt_t ccpu; 119 size_t len; 120 int err; 121 122 len = sizeof(ccpu); 123 err = sysctlbyname("kern.ccpu", &ccpu, &len, NULL, 0); 124 if (err || len != sizeof(ccpu)) { 125 perror("kern.ccpu"); 126 return (0); 127 } 128 129 len = sizeof(fscale); 130 err = sysctlbyname("kern.fscale", &fscale, &len, NULL, 0); 131 if (err || len != sizeof(fscale)) { 132 perror("kern.fscale"); 133 return (0); 134 } 135 136 lccpu = log((double) ccpu / fscale); 137 138 return(1); 139 } 140 141 void 142 fetchpigs(void) 143 { 144 int i; 145 float ftime; 146 float *pctp; 147 struct kinfo_proc *kpp; 148 static int lastnproc = 0; 149 150 if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) { 151 error("%s", kvm_geterr(kd)); 152 if (pt) 153 free(pt); 154 return; 155 } 156 if (nproc > lastnproc) { 157 free(pt); 158 if ((pt = 159 malloc(nproc * sizeof(struct p_times))) == NULL) { 160 error("Out of memory"); 161 die(0); 162 } 163 } 164 lastnproc = nproc; 165 /* 166 * calculate %cpu for each proc 167 */ 168 for (i = 0; i < nproc; i++) { 169 pt[i].pt_kp = &kpp[i]; 170 pctp = &pt[i].pt_pctcpu; 171 ftime = kpp[i].ki_swtime; 172 if (ftime == 0 || (kpp[i].ki_flag & P_INMEM) == 0) 173 *pctp = 0; 174 else 175 *pctp = ((double) kpp[i].ki_pctcpu / 176 fscale) / (1.0 - exp(ftime * lccpu)); 177 } 178 } 179 180 void 181 labelpigs(void) 182 { 183 wmove(wnd, 0, 0); 184 wclrtoeol(wnd); 185 mvwaddstr(wnd, 0, 20, 186 "/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100"); 187 } 188 189 int 190 compar(const void *a, const void *b) 191 { 192 return (((const struct p_times *) a)->pt_pctcpu > 193 ((const struct p_times *) b)->pt_pctcpu)? -1: 1; 194 } 195