pigs.c revision 145800
1251881Speter/*- 2251881Speter * Copyright (c) 1980, 1992, 1993 3251881Speter * The Regents of the University of California. All rights reserved. 4251881Speter * 5251881Speter * Redistribution and use in source and binary forms, with or without 6251881Speter * modification, are permitted provided that the following conditions 7251881Speter * are met: 8251881Speter * 1. Redistributions of source code must retain the above copyright 9251881Speter * notice, this list of conditions and the following disclaimer. 10251881Speter * 2. Redistributions in binary form must reproduce the above copyright 11251881Speter * notice, this list of conditions and the following disclaimer in the 12251881Speter * documentation and/or other materials provided with the distribution. 13251881Speter * 3. All advertising materials mentioning features or use of this software 14251881Speter * must display the following acknowledgement: 15251881Speter * This product includes software developed by the University of 16251881Speter * California, Berkeley and its contributors. 17251881Speter * 4. Neither the name of the University nor the names of its contributors 18251881Speter * may be used to endorse or promote products derived from this software 19251881Speter * without specific prior written permission. 20251881Speter * 21251881Speter * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22251881Speter * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23251881Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24251881Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25251881Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26251881Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27251881Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28251881Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29251881Speter * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30251881Speter * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31251881Speter * SUCH DAMAGE. 32251881Speter */ 33251881Speter 34251881Speter#if 0 35251881Speter#ifndef lint 36251881Speterstatic char sccsid[] = "@(#)pigs.c 8.2 (Berkeley) 9/23/93"; 37251881Speter#endif /* not lint */ 38251881Speter#endif 39251881Speter 40251881Speter#include <sys/cdefs.h> 41251881Speter__FBSDID("$FreeBSD: head/usr.bin/systat/pigs.c 145800 2005-05-02 10:50:10Z delphij $"); 42251881Speter 43251881Speter/* 44251881Speter * Pigs display from Bill Reeves at Lucasfilm 45251881Speter */ 46251881Speter 47251881Speter#include <sys/param.h> 48251881Speter#include <sys/proc.h> 49251881Speter#include <sys/sysctl.h> 50251881Speter#include <sys/time.h> 51251881Speter#include <sys/user.h> 52251881Speter 53251881Speter#include <curses.h> 54251881Speter#include <math.h> 55251881Speter#include <pwd.h> 56251881Speter#include <stdlib.h> 57251881Speter 58251881Speter#include "systat.h" 59251881Speter#include "extern.h" 60251881Speter 61251881Speterint compar(const void *, const void *); 62251881Speter 63251881Speterstatic int nproc; 64251881Speterstatic struct p_times { 65251881Speter float pt_pctcpu; 66251881Speter struct kinfo_proc *pt_kp; 67251881Speter} *pt; 68251881Speter 69251881Speterstatic long stime[CPUSTATES]; 70251881Speterstatic int fscale; 71251881Speterstatic double lccpu; 72251881Speter 73251881SpeterWINDOW * 74251881Speteropenpigs() 75251881Speter{ 76251881Speter return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 77251881Speter} 78251881Speter 79251881Spetervoid 80251881Speterclosepigs(w) 81251881Speter WINDOW *w; 82251881Speter{ 83251881Speter if (w == NULL) 84251881Speter return; 85251881Speter wclear(w); 86251881Speter wrefresh(w); 87251881Speter delwin(w); 88251881Speter} 89251881Speter 90251881Speter 91251881Spetervoid 92251881Spetershowpigs() 93251881Speter{ 94251881Speter register int i, j, y, k; 95251881Speter float total; 96251881Speter int factor; 97251881Speter const char *uname, *pname; 98251881Speter char pidname[30]; 99251881Speter 100251881Speter if (pt == NULL) 101251881Speter return; 102251881Speter /* Accumulate the percent of cpu per user. */ 103251881Speter total = 0.0; 104251881Speter for (i = 0; i <= nproc; i++) { 105251881Speter /* Accumulate the percentage. */ 106251881Speter total += pt[i].pt_pctcpu; 107251881Speter } 108251881Speter 109251881Speter if (total < 1.0) 110251881Speter total = 1.0; 111251881Speter factor = 50.0/total; 112251881Speter 113251881Speter qsort(pt, nproc + 1, sizeof (struct p_times), compar); 114251881Speter y = 1; 115251881Speter i = nproc + 1; 116251881Speter if (i > wnd->_maxy-1) 117251881Speter i = wnd->_maxy-1; 118251881Speter for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) { 119251881Speter if (pt[k].pt_kp == NULL) { 120251881Speter uname = ""; 121251881Speter pname = "<idle>"; 122251881Speter } 123251881Speter else { 124251881Speter uname = user_from_uid(pt[k].pt_kp->ki_uid, 0); 125251881Speter pname = pt[k].pt_kp->ki_comm; 126251881Speter } 127251881Speter wmove(wnd, y, 0); 128251881Speter wclrtoeol(wnd); 129251881Speter mvwaddstr(wnd, y, 0, uname); 130251881Speter snprintf(pidname, sizeof(pidname), "%10.10s", pname); 131251881Speter mvwaddstr(wnd, y, 9, pidname); 132251881Speter wmove(wnd, y, 20); 133251881Speter for (j = pt[k].pt_pctcpu*factor + 0.5; j > 0; j--) 134251881Speter waddch(wnd, 'X'); 135251881Speter } 136251881Speter wmove(wnd, y, 0); wclrtobot(wnd); 137251881Speter} 138251881Speter 139251881Speterint 140251881Speterinitpigs() 141251881Speter{ 142251881Speter fixpt_t ccpu; 143251881Speter size_t len; 144251881Speter int err; 145251881Speter 146251881Speter len = sizeof(stime); 147251881Speter err = sysctlbyname("kern.cp_time", &stime, &len, NULL, 0); 148251881Speter if (err || len != sizeof(stime)) { 149251881Speter perror("kern.cp_time"); 150251881Speter return (0); 151251881Speter } 152251881Speter 153251881Speter len = sizeof(ccpu); 154251881Speter err = sysctlbyname("kern.ccpu", &ccpu, &len, NULL, 0); 155251881Speter if (err || len != sizeof(ccpu)) { 156251881Speter perror("kern.ccpu"); 157251881Speter return (0); 158251881Speter } 159251881Speter 160251881Speter len = sizeof(fscale); 161251881Speter err = sysctlbyname("kern.fscale", &fscale, &len, NULL, 0); 162251881Speter if (err || len != sizeof(fscale)) { 163251881Speter perror("kern.fscale"); 164251881Speter return (0); 165251881Speter } 166251881Speter 167251881Speter lccpu = log((double) ccpu / fscale); 168251881Speter 169251881Speter return(1); 170251881Speter} 171251881Speter 172251881Spetervoid 173251881Speterfetchpigs() 174251881Speter{ 175251881Speter int i; 176251881Speter float ftime; 177251881Speter float *pctp; 178251881Speter struct kinfo_proc *kpp; 179251881Speter long c_time[CPUSTATES]; 180251881Speter double t; 181251881Speter static int lastnproc = 0; 182251881Speter size_t len; 183251881Speter int err; 184251881Speter 185251881Speter if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) { 186251881Speter error("%s", kvm_geterr(kd)); 187 if (pt) 188 free(pt); 189 return; 190 } 191 if (nproc > lastnproc) { 192 free(pt); 193 if ((pt = 194 malloc((nproc + 1) * sizeof(struct p_times))) == NULL) { 195 error("Out of memory"); 196 die(0); 197 } 198 } 199 lastnproc = nproc; 200 /* 201 * calculate %cpu for each proc 202 */ 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) 208 *pctp = 0; 209 else 210 *pctp = ((double) kpp[i].ki_pctcpu / 211 fscale) / (1.0 - exp(ftime * lccpu)); 212 } 213 /* 214 * and for the imaginary "idle" process 215 */ 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"); 220 return; 221 } 222 t = 0; 223 for (i = 0; i < CPUSTATES; i++) 224 t += c_time[i] - stime[i]; 225 if (t == 0.0) 226 t = 1.0; 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]; 231} 232 233void 234labelpigs() 235{ 236 wmove(wnd, 0, 0); 237 wclrtoeol(wnd); 238 mvwaddstr(wnd, 0, 20, 239 "/0 /10 /20 /30 /40 /50 /60 /70 /80 /90 /100"); 240} 241 242int 243compar(a, b) 244 const void *a, *b; 245{ 246 return (((const struct p_times *) a)->pt_pctcpu > 247 ((const struct p_times *) b)->pt_pctcpu)? -1: 1; 248} 249