pigs.c revision 175387
11590Srgrimes/*- 21590Srgrimes * Copyright (c) 1980, 1992, 1993 31590Srgrimes * The Regents of the University of California. All rights reserved. 41590Srgrimes * 51590Srgrimes * Redistribution and use in source and binary forms, with or without 61590Srgrimes * modification, are permitted provided that the following conditions 71590Srgrimes * are met: 81590Srgrimes * 1. Redistributions of source code must retain the above copyright 91590Srgrimes * notice, this list of conditions and the following disclaimer. 101590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer in the 121590Srgrimes * documentation and/or other materials provided with the distribution. 131590Srgrimes * 3. All advertising materials mentioning features or use of this software 141590Srgrimes * must display the following acknowledgement: 151590Srgrimes * This product includes software developed by the University of 161590Srgrimes * California, Berkeley and its contributors. 171590Srgrimes * 4. Neither the name of the University nor the names of its contributors 181590Srgrimes * may be used to endorse or promote products derived from this software 191590Srgrimes * without specific prior written permission. 201590Srgrimes * 211590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311590Srgrimes * SUCH DAMAGE. 321590Srgrimes */ 331590Srgrimes 3494610Sdwmalone#if 0 3594610Sdwmalone#ifndef lint 3694610Sdwmalonestatic char sccsid[] = "@(#)pigs.c 8.2 (Berkeley) 9/23/93"; 3794610Sdwmalone#endif /* not lint */ 3894610Sdwmalone#endif 3994610Sdwmalone 4087715Smarkm#include <sys/cdefs.h> 4187715Smarkm__FBSDID("$FreeBSD: head/usr.bin/systat/pigs.c 175387 2008-01-16 19:27:43Z delphij $"); 4287715Smarkm 431590Srgrimes/* 441590Srgrimes * Pigs display from Bill Reeves at Lucasfilm 451590Srgrimes */ 461590Srgrimes 471590Srgrimes#include <sys/param.h> 48128230Sbde#include <sys/proc.h> 49128230Sbde#include <sys/sysctl.h> 501590Srgrimes#include <sys/time.h> 5111914Sphk#include <sys/user.h> 521590Srgrimes 531590Srgrimes#include <curses.h> 541590Srgrimes#include <math.h> 551590Srgrimes#include <pwd.h> 561590Srgrimes#include <stdlib.h> 571590Srgrimes 58145800Sdelphij#include "systat.h" 591590Srgrimes#include "extern.h" 601590Srgrimes 6192922Simpint compar(const void *, const void *); 621590Srgrimes 631590Srgrimesstatic int nproc; 641590Srgrimesstatic struct p_times { 651590Srgrimes float pt_pctcpu; 661590Srgrimes struct kinfo_proc *pt_kp; 671590Srgrimes} *pt; 681590Srgrimes 6969493Sgallatinstatic int fscale; 701590Srgrimesstatic double lccpu; 711590Srgrimes 721590SrgrimesWINDOW * 73175387Sdelphijopenpigs(void) 741590Srgrimes{ 75158160Sbde return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0)); 761590Srgrimes} 771590Srgrimes 781590Srgrimesvoid 79175387Sdelphijclosepigs(WINDOW *w) 801590Srgrimes{ 811590Srgrimes if (w == NULL) 821590Srgrimes return; 831590Srgrimes wclear(w); 841590Srgrimes wrefresh(w); 851590Srgrimes delwin(w); 861590Srgrimes} 871590Srgrimes 881590Srgrimes 891590Srgrimesvoid 90175387Sdelphijshowpigs(void) 911590Srgrimes{ 92175387Sdelphij int i, j, y, k; 9387715Smarkm const char *uname, *pname; 9487715Smarkm char pidname[30]; 951590Srgrimes 961590Srgrimes if (pt == NULL) 971590Srgrimes return; 981590Srgrimes 99172143Sru qsort(pt, nproc, sizeof (struct p_times), compar); 1001590Srgrimes y = 1; 101172143Sru i = nproc; 10250635Speter if (i > wnd->_maxy-1) 10350635Speter i = wnd->_maxy-1; 1041590Srgrimes for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) { 105172143Sru uname = user_from_uid(pt[k].pt_kp->ki_uid, 0); 106172143Sru pname = pt[k].pt_kp->ki_comm; 1071590Srgrimes wmove(wnd, y, 0); 1081590Srgrimes wclrtoeol(wnd); 1091590Srgrimes mvwaddstr(wnd, y, 0, uname); 11036789Simp snprintf(pidname, sizeof(pidname), "%10.10s", pname); 1111590Srgrimes mvwaddstr(wnd, y, 9, pidname); 1121590Srgrimes wmove(wnd, y, 20); 113172143Sru for (j = pt[k].pt_pctcpu * 50 + 0.5; j > 0; j--) 1141590Srgrimes waddch(wnd, 'X'); 1151590Srgrimes } 1161590Srgrimes wmove(wnd, y, 0); wclrtobot(wnd); 1171590Srgrimes} 1181590Srgrimes 1191590Srgrimesint 120175387Sdelphijinitpigs(void) 1211590Srgrimes{ 1221590Srgrimes fixpt_t ccpu; 12369142Srwatson size_t len; 12469142Srwatson int err; 1251590Srgrimes 12669142Srwatson len = sizeof(ccpu); 12769142Srwatson err = sysctlbyname("kern.ccpu", &ccpu, &len, NULL, 0); 12869142Srwatson if (err || len != sizeof(ccpu)) { 12969142Srwatson perror("kern.ccpu"); 13069142Srwatson return (0); 13169142Srwatson } 13269142Srwatson 13369142Srwatson len = sizeof(fscale); 13469142Srwatson err = sysctlbyname("kern.fscale", &fscale, &len, NULL, 0); 13569142Srwatson if (err || len != sizeof(fscale)) { 13669142Srwatson perror("kern.fscale"); 13769142Srwatson return (0); 13869142Srwatson } 13969142Srwatson 1401590Srgrimes lccpu = log((double) ccpu / fscale); 1411590Srgrimes 1421590Srgrimes return(1); 1431590Srgrimes} 1441590Srgrimes 1451590Srgrimesvoid 146175387Sdelphijfetchpigs(void) 1471590Srgrimes{ 14887715Smarkm int i; 14987715Smarkm float ftime; 15087715Smarkm float *pctp; 1511590Srgrimes struct kinfo_proc *kpp; 1521590Srgrimes static int lastnproc = 0; 1531590Srgrimes 1541590Srgrimes if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) { 1551590Srgrimes error("%s", kvm_geterr(kd)); 1561590Srgrimes if (pt) 1571590Srgrimes free(pt); 1581590Srgrimes return; 1591590Srgrimes } 1601590Srgrimes if (nproc > lastnproc) { 1611590Srgrimes free(pt); 1621590Srgrimes if ((pt = 163172143Sru malloc(nproc * sizeof(struct p_times))) == NULL) { 1641590Srgrimes error("Out of memory"); 1651590Srgrimes die(0); 1661590Srgrimes } 1671590Srgrimes } 1681590Srgrimes lastnproc = nproc; 1691590Srgrimes /* 1701590Srgrimes * calculate %cpu for each proc 1711590Srgrimes */ 1721590Srgrimes for (i = 0; i < nproc; i++) { 1731590Srgrimes pt[i].pt_kp = &kpp[i]; 1741590Srgrimes pctp = &pt[i].pt_pctcpu; 17587715Smarkm ftime = kpp[i].ki_swtime; 176172207Sjeff if (ftime == 0 || (kpp[i].ki_flag & P_INMEM) == 0) 1771590Srgrimes *pctp = 0; 1781590Srgrimes else 17969896Smckusick *pctp = ((double) kpp[i].ki_pctcpu / 18087715Smarkm fscale) / (1.0 - exp(ftime * lccpu)); 1811590Srgrimes } 1821590Srgrimes} 1831590Srgrimes 1841590Srgrimesvoid 185175387Sdelphijlabelpigs(void) 1861590Srgrimes{ 1871590Srgrimes wmove(wnd, 0, 0); 1881590Srgrimes wclrtoeol(wnd); 1891590Srgrimes mvwaddstr(wnd, 0, 20, 190164689Syar "/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100"); 1911590Srgrimes} 1921590Srgrimes 1931590Srgrimesint 194175387Sdelphijcompar(const void *a, const void *b) 1951590Srgrimes{ 19687715Smarkm return (((const struct p_times *) a)->pt_pctcpu > 19787715Smarkm ((const struct p_times *) b)->pt_pctcpu)? -1: 1; 1981590Srgrimes} 199