/* $OpenBSD: vmstat.c,v 1.65 2008/06/13 10:06:14 deraadt Exp $ */ /* $NetBSD: vmstat.c,v 1.5 1996/05/10 23:16:40 thorpej Exp $ */ /*- * Copyright (c) 1983, 1989, 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint #if 0 static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; #endif static char rcsid[] = "$OpenBSD: vmstat.c,v 1.65 2008/06/13 10:06:14 deraadt Exp $"; #endif /* not lint */ /* * Cursed vmstat -- from Robert Elz. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "systat.h" static struct Info { long time[CPUSTATES]; struct uvmexp uvmexp; struct vmtotal Total; struct nchstats nchstats; long nchcount; u_quad_t *intrcnt; } s, s1, s2, s3, z; #include "dkstats.h" extern struct _disk cur; #define cnt s.Cnt #define oldcnt s1.Cnt #define total s.Total #define nchtotal s.nchstats #define oldnchtotal s1.nchstats static enum state { BOOT, TIME, RUN } state = TIME; static void allocinfo(struct Info *); static void copyinfo(struct Info *, struct Info *); static float cputime(int); static void dinfo(int, int); static void getinfo(struct Info *); void putint(int, int, int, int); void putuint64(u_int64_t, int, int, int); void putfloat(double, int, int, int, int, int); int ucount(void); void print_vm(void); int read_vm(void); int select_vm(void); int vm_keyboard_callback(int); static time_t t; static double etime; static float hertz; static int nintr; static long *intrloc; static char **intrname; static int nextintsrow; WINDOW * openkre(void) { return (subwin(stdscr, LINES-1-1, 0, 1, 0)); } void closekre(WINDOW *w) { if (w == NULL) return; wclear(w); wrefresh(w); delwin(w); } /* * These constants define where the major pieces are laid out */ #define STATROW 0 /* uses 1 row and 68 cols */ #define STATCOL 2 #define MEMROW 2 /* uses 4 rows and 34 cols */ #define MEMCOL 0 #define PAGEROW 2 /* uses 4 rows and 26 cols */ #define PAGECOL 37 #define INTSROW 2 /* uses all rows to bottom and 17 cols */ #define INTSCOL 63 #define PROCSROW 7 /* uses 2 rows and 20 cols */ #define PROCSCOL 0 #define GENSTATROW 7 /* uses 2 rows and 35 cols */ #define GENSTATCOL 16 #define VMSTATROW 7 /* uses 18 rows and 12 cols */ #define VMSTATCOL 48 #define GRAPHROW 10 /* uses 3 rows and 51 cols */ #define GRAPHCOL 0 #define NAMEIROW 14 /* uses 3 rows and 49 cols */ #define NAMEICOL 0 #define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ #define DISKCOL 0 #define DRIVESPACE 45 /* max space for drives */ field_def *view_vm_0[] = { NULL }; /* Define view managers */ struct view_manager vmstat_mgr = { "VMstat", select_vm, read_vm, NULL, print_header, print_vm, vm_keyboard_callback, NULL, NULL }; field_view views_vm[] = { {view_vm_0, "vmstat", '7', &vmstat_mgr}, {NULL, NULL, 0, NULL} }; int ncpu = 1; int initvmstat(void) { field_view *v; int mib[4], i; size_t size; mib[0] = CTL_HW; mib[1] = HW_NCPU; size = sizeof(ncpu); if (sysctl(mib, 2, &ncpu, &size, NULL, 0) < 0) return (-1); hertz = stathz ? stathz : hz; if (!dkinit(1)) return(0); mib[0] = CTL_KERN; mib[1] = KERN_INTRCNT; mib[2] = KERN_INTRCNT_NUM; size = sizeof(nintr); if (sysctl(mib, 3, &nintr, &size, NULL, 0) < 0) return (-1); intrloc = calloc(nintr, sizeof(long)); intrname = calloc(nintr, sizeof(char *)); for (i = 0; i < nintr; i++) { char name[128]; mib[0] = CTL_KERN; mib[1] = KERN_INTRCNT; mib[2] = KERN_INTRCNT_NAME; mib[3] = i; size = sizeof(name); if (sysctl(mib, 4, name, &size, NULL, 0) < 0) return (-1); intrname[i] = strdup(name); if (intrname[i] == NULL) return (-1); } nextintsrow = INTSROW + 2; allocinfo(&s); allocinfo(&s1); allocinfo(&s2); allocinfo(&s3); allocinfo(&z); getinfo(&s2); copyinfo(&z, &s1); for (v = views_vm; v->name != NULL; v++) add_view(v); return(1); } void fetchkre(void) { getinfo(&s3); } void labelkre(void) { int i, j, l; mvprintw(MEMROW, MEMCOL, " memory totals (in KB)"); mvprintw(MEMROW + 1, MEMCOL, " real virtual free"); mvprintw(MEMROW + 2, MEMCOL, "Active"); mvprintw(MEMROW + 3, MEMCOL, "All"); mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); mvprintw(PAGEROW + 2, PAGECOL, "ops"); mvprintw(PAGEROW + 3, PAGECOL, "pages"); mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); mvprintw(INTSROW + 1, INTSCOL + 9, "total"); mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "forks"); mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "fkppw"); mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "fksvm"); mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "pwait"); mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "relck"); mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "rlkok"); mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "noram"); mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "ndcpy"); mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "fltcp"); mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "zfod"); mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "cow"); mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "fmin"); mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "ftarg"); mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "itarg"); mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "wired"); mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "pdfre"); if (LINES - 1 > VMSTATROW + 16) mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "pdscn"); if (LINES - 1 > VMSTATROW + 17) mvprintw(VMSTATROW + 17, VMSTATCOL + 10, "pzidle"); if (LINES - 1 > VMSTATROW + 18) mvprintw(VMSTATROW + 18, VMSTATCOL + 10, "kmapent"); mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); mvprintw(GRAPHROW, GRAPHCOL, " . %%Int . %%Sys . %%Usr . %%Nic . %%Idle"); mvprintw(PROCSROW, PROCSCOL, "Proc:r d s w"); mvprintw(GRAPHROW + 1, GRAPHCOL, "| | | | | | | | | | |"); mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache No-cache"); mvprintw(NAMEIROW + 1, NAMEICOL, " Calls hits %% hits %% miss %%"); mvprintw(DISKROW, DISKCOL, "Disks"); mvprintw(DISKROW + 1, DISKCOL, "seeks"); mvprintw(DISKROW + 2, DISKCOL, "xfers"); mvprintw(DISKROW + 3, DISKCOL, "Kbyte"); mvprintw(DISKROW + 4, DISKCOL, " sec"); for (i = 0, j = 0; i < cur.dk_ndrive && j < DRIVESPACE; i++) if (cur.dk_select[i] && (j + strlen(dr_name[i])) < DRIVESPACE) { l = MAX(5, strlen(dr_name[i])); mvprintw(DISKROW, DISKCOL + 5 + j, " %*s", l, dr_name[i]); j += 1 + l; } for (i = 0; i < nintr; i++) { if (intrloc[i] == 0) continue; mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); } } #define X(fld) {s.fld[i]; s.fld[i]-=s1.fld[i];} #define Y(fld) {s.fld; s.fld -= s1.fld;} #define Z(fld) {s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld;} #define PUTRATE(fld, l, c, w) \ do { \ Y(fld); \ putint((int)((float)s.fld/etime + 0.5), l, c, w); \ } while (0) #define MAXFAIL 5 static char cpuchar[CPUSTATES] = { '|', '=', '>', '-', ' ' }; static char cpuorder[CPUSTATES] = { CP_INTR, CP_SYS, CP_USER, CP_NICE, CP_IDLE }; void showkre(void) { float f1, f2; int psiz; u_int64_t inttotal, intcnt; int i, l, c; static int failcnt = 0, first_run = 0; if (state == TIME) { if (!first_run) { first_run = 1; return; } } etime = 0; for (i = 0; i < CPUSTATES; i++) { X(time); etime += s.time[i]; } if (etime < 5.0) { /* < 5 ticks - ignore this trash */ if (failcnt++ >= MAXFAIL) { error("The alternate system clock has died!"); failcnt = 0; } return; } failcnt = 0; etime /= hertz; etime /= ncpu; inttotal = 0; for (i = 0; i < nintr; i++) { if (s.intrcnt[i] == 0) continue; if (intrloc[i] == 0) { if (nextintsrow == LINES) continue; intrloc[i] = nextintsrow++; mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); } t = intcnt = s.intrcnt[i]; s.intrcnt[i] -= s1.intrcnt[i]; intcnt = (u_int64_t)((float)s.intrcnt[i]/etime + 0.5); inttotal += intcnt; putuint64(intcnt, intrloc[i], INTSCOL, 8); } putuint64(inttotal, INTSROW + 1, INTSCOL, 8); Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss); Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits + nchtotal.ncs_miss + nchtotal.ncs_long; psiz = 0; f2 = 0.0; for (c = 0; c < CPUSTATES; c++) { i = cpuorder[c]; f1 = cputime(i); f2 += f1; l = (int) ((f2 + 1.0) / 2.0) - psiz; putfloat(f1, GRAPHROW, GRAPHCOL + 1 + (10 * c), 5, 1, 0); move(GRAPHROW + 2, psiz); psiz += l; while (l-- > 0) addch(cpuchar[c]); } #define pgtokb(pg) ((pg) * (s.uvmexp.pagesize / 1024)) putint(pgtokb(s.uvmexp.active), MEMROW + 2, MEMCOL + 7, 8); putint(pgtokb(s.uvmexp.active + s.uvmexp.swpginuse), /* XXX */ MEMROW + 2, MEMCOL + 17, 8); putint(pgtokb(s.uvmexp.npages - s.uvmexp.free), MEMROW + 3, MEMCOL + 7, 8); putint(pgtokb(s.uvmexp.npages - s.uvmexp.free + s.uvmexp.swpginuse), MEMROW + 3, MEMCOL + 17, 8); putint(pgtokb(s.uvmexp.free), MEMROW + 2, MEMCOL + 26, 8); putint(pgtokb(s.uvmexp.free + s.uvmexp.swpages - s.uvmexp.swpginuse), MEMROW + 3, MEMCOL + 26, 8); putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); putint(total.t_dw, PROCSROW + 1, PROCSCOL + 6, 3); putint(total.t_sl, PROCSROW + 1, PROCSCOL + 9, 3); putint(total.t_sw, PROCSROW + 1, PROCSCOL + 12, 3); PUTRATE(uvmexp.forks, VMSTATROW + 0, VMSTATCOL + 3, 6); PUTRATE(uvmexp.forks_ppwait, VMSTATROW + 1, VMSTATCOL + 3, 6); PUTRATE(uvmexp.forks_sharevm, VMSTATROW + 2, VMSTATCOL + 3, 6); PUTRATE(uvmexp.fltpgwait, VMSTATROW + 3, VMSTATCOL + 4, 5); PUTRATE(uvmexp.fltrelck, VMSTATROW + 4, VMSTATCOL + 3, 6); PUTRATE(uvmexp.fltrelckok, VMSTATROW + 5, VMSTATCOL + 3, 6); PUTRATE(uvmexp.fltnoram, VMSTATROW + 6, VMSTATCOL + 3, 6); PUTRATE(uvmexp.fltamcopy, VMSTATROW + 7, VMSTATCOL + 3, 6); PUTRATE(uvmexp.flt_prcopy, VMSTATROW + 8, VMSTATCOL + 3, 6); PUTRATE(uvmexp.flt_przero, VMSTATROW + 9, VMSTATCOL + 3, 6); PUTRATE(uvmexp.flt_acow, VMSTATROW + 10, VMSTATCOL, 9); putint(s.uvmexp.freemin, VMSTATROW + 11, VMSTATCOL, 9); putint(s.uvmexp.freetarg, VMSTATROW + 12, VMSTATCOL, 9); putint(s.uvmexp.inactarg, VMSTATROW + 13, VMSTATCOL, 9); putint(s.uvmexp.wired, VMSTATROW + 14, VMSTATCOL, 9); PUTRATE(uvmexp.pdfreed, VMSTATROW + 15, VMSTATCOL, 9); if (LINES - 1 > VMSTATROW + 16) PUTRATE(uvmexp.pdscans, VMSTATROW + 16, VMSTATCOL, 9); if (LINES - 1 > VMSTATROW + 17) PUTRATE(uvmexp.zeropages, VMSTATROW + 17, VMSTATCOL, 9); if (LINES - 1 > VMSTATROW + 18) putint(s.uvmexp.kmapent, VMSTATROW + 18, VMSTATCOL, 9); PUTRATE(uvmexp.pageins, PAGEROW + 2, PAGECOL + 5, 5); PUTRATE(uvmexp.pdpageouts, PAGEROW + 2, PAGECOL + 10, 5); PUTRATE(uvmexp.swapins, PAGEROW + 2, PAGECOL + 15, 5); PUTRATE(uvmexp.swapouts, PAGEROW + 2, PAGECOL + 20, 5); PUTRATE(uvmexp.pgswapin, PAGEROW + 3, PAGECOL + 5, 5); PUTRATE(uvmexp.pgswapout, PAGEROW + 3, PAGECOL + 10, 5); PUTRATE(uvmexp.swtch, GENSTATROW + 1, GENSTATCOL, 6); PUTRATE(uvmexp.traps, GENSTATROW + 1, GENSTATCOL + 6, 6); PUTRATE(uvmexp.syscalls, GENSTATROW + 1, GENSTATCOL + 12, 6); PUTRATE(uvmexp.intrs, GENSTATROW + 1, GENSTATCOL + 18, 6); PUTRATE(uvmexp.softs, GENSTATROW + 1, GENSTATCOL + 24, 6); PUTRATE(uvmexp.faults, GENSTATROW + 1, GENSTATCOL + 30, 5); mvprintw(DISKROW, DISKCOL + 5, " "); for (i = 0, c = 0; i < cur.dk_ndrive && c < DRIVESPACE; i++) if (cur.dk_select[i] && (c + strlen(dr_name[i])) < DRIVESPACE) { l = MAX(5, strlen(dr_name[i])); mvprintw(DISKROW, DISKCOL + 5 + c, " %*s", l, dr_name[i]); c += 1 + l; dinfo(i, c); } /* and pad the DRIVESPACE */ l = DRIVESPACE - c; for (i = 0; i < 5; i++) mvprintw(DISKROW + i, DISKCOL + 5 + c, "%*s", l, ""); putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 10, 8); #define nz(x) ((x) ? (x) : 1) putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount), NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1); putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 24, 7); putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), NAMEIROW + 2, NAMEICOL + 33, 4, 0, 1); putint(nchtotal.ncs_miss - nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 38, 7); putfloat((nchtotal.ncs_miss - nchtotal.ncs_pass2) * 100.0 / nz(s.nchcount), NAMEIROW + 2, NAMEICOL + 45, 4, 0, 1); #undef nz } int vm_keyboard_callback(int ch) { switch(ch) { case 'r': copyinfo(&s2, &s1); state = RUN; break; case 'b': state = BOOT; copyinfo(&z, &s1); break; case 't': state = TIME; break; case 'z': if (state == RUN) getinfo(&s1); break; } return (keyboard_callback(ch)); } static float cputime(int indx) { double t; int i; t = 0; for (i = 0; i < CPUSTATES; i++) t += s.time[i]; if (t == 0.0) t = 1.0; return (s.time[indx] * 100.0 / t); } void putint(int n, int l, int c, int w) { char b[128]; move(l, c); if (n == 0) { while (w-- > 0) addch(' '); return; } snprintf(b, sizeof b, "%*d", w, n); if (strlen(b) > w) { while (w-- > 0) addch('*'); return; } addstr(b); } void putuint64(u_int64_t n, int l, int c, int w) { char b[128]; move(l, c); if (n == 0) { while (w-- > 0) addch(' '); return; } snprintf(b, sizeof b, "%*llu", w, n); if (strlen(b) > w) { while (w-- > 0) addch('*'); return; } addstr(b); } void putfloat(double f, int l, int c, int w, int d, int nz) { char b[128]; move(l, c); if (nz && f == 0.0) { while (--w >= 0) addch(' '); return; } snprintf(b, sizeof b, "%*.*f", w, d, f); if (strlen(b) > w) { while (--w >= 0) addch('*'); return; } addstr(b); } static void getinfo(struct Info *s) { static int cp_time_mib[] = { CTL_KERN, KERN_CPTIME }; static int nchstats_mib[2] = { CTL_KERN, KERN_NCHSTATS }; static int uvmexp_mib[2] = { CTL_VM, VM_UVMEXP }; static int vmtotal_mib[2] = { CTL_VM, VM_METER }; int mib[4], i; size_t size; dkreadstats(); for (i = 0; i < nintr; i++) { mib[0] = CTL_KERN; mib[1] = KERN_INTRCNT; mib[2] = KERN_INTRCNT_CNT; mib[3] = i; size = sizeof(s->intrcnt[i]); if (sysctl(mib, 4, &s->intrcnt[i], &size, NULL, 0) < 0) { s->intrcnt[i] = 0; } } size = sizeof(s->time); if (sysctl(cp_time_mib, 2, &s->time, &size, NULL, 0) < 0) { error("Can't get KERN_CPTIME: %s\n", strerror(errno)); bzero(&s->time, sizeof(s->time)); } size = sizeof(s->nchstats); if (sysctl(nchstats_mib, 2, &s->nchstats, &size, NULL, 0) < 0) { error("Can't get KERN_NCHSTATS: %s\n", strerror(errno)); bzero(&s->nchstats, sizeof(s->nchstats)); } size = sizeof(s->uvmexp); if (sysctl(uvmexp_mib, 2, &s->uvmexp, &size, NULL, 0) < 0) { error("Can't get VM_UVMEXP: %s\n", strerror(errno)); bzero(&s->uvmexp, sizeof(s->uvmexp)); } size = sizeof(s->Total); if (sysctl(vmtotal_mib, 2, &s->Total, &size, NULL, 0) < 0) { error("Can't get VM_METER: %s\n", strerror(errno)); bzero(&s->Total, sizeof(s->Total)); } } static void allocinfo(struct Info *s) { memset(s, 0, sizeof(*s)); s->intrcnt = (u_quad_t *) calloc(nintr, sizeof(u_quad_t)); if (s->intrcnt == NULL) errx(2, "out of memory"); } static void copyinfo(struct Info *from, struct Info *to) { u_quad_t *intrcnt; intrcnt = to->intrcnt; *to = *from; bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (u_quad_t)); } static void dinfo(int dn, int c) { double words, atime; c += DISKCOL; /* time busy in disk activity */ atime = (double)cur.dk_time[dn].tv_sec + ((double)cur.dk_time[dn].tv_usec / (double)1000000); /* # of K transferred */ words = (cur.dk_rbytes[dn] + cur.dk_wbytes[dn]) / 1024.0; putint((int)((float)cur.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); putint((int)((float)(cur.dk_rxfer[dn] + cur.dk_wxfer[dn])/etime+0.5), DISKROW + 2, c, 5); putint((int)(words/etime + 0.5), DISKROW + 3, c, 5); putfloat(atime/etime, DISKROW + 4, c, 5, 1, 1); } int select_vm(void) { num_disp = 0; return (0); } int read_vm(void) { if (state == TIME) copyinfo(&s3, &s1); fetchkre(); if (state == TIME) dkswap(); num_disp = 0; return 0; } void print_vm(void) { copyinfo(&s3, &s); labelkre(); showkre(); }