diff options
Diffstat (limited to 'usr.bin/systat/vmstat.c')
| -rw-r--r-- | usr.bin/systat/vmstat.c | 687 |
1 files changed, 687 insertions, 0 deletions
diff --git a/usr.bin/systat/vmstat.c b/usr.bin/systat/vmstat.c new file mode 100644 index 0000000..3558c50 --- /dev/null +++ b/usr.bin/systat/vmstat.c @@ -0,0 +1,687 @@ +/*- + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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 +static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94"; +#endif /* not lint */ + +/* + * Cursed vmstat -- from Robert Elz. + */ + +#include <sys/param.h> +#include <sys/dkstat.h> +#include <sys/buf.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/user.h> +#include <sys/proc.h> +#include <sys/namei.h> +#include <sys/sysctl.h> +#include <vm/vm.h> + +#include <signal.h> +#include <nlist.h> +#include <ctype.h> +#include <utmp.h> +#include <paths.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include "systat.h" +#include "extern.h" + +static struct Info { + long time[CPUSTATES]; + struct vmmeter Cnt; + struct vmtotal Total; + long *dk_time; + long *dk_wds; + long *dk_seek; + long *dk_xfer; + int dk_busy; + struct nchstats nchstats; + long nchcount; + long *intrcnt; +} s, s1, s2, z; + +#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 __P((struct Info *)); +static void copyinfo __P((struct Info *, struct Info *)); +static float cputime __P((int)); +static void dinfo __P((int, int)); +static void getinfo __P((struct Info *, enum state)); +static void putint __P((int, int, int, int)); +static void putfloat __P((double, int, int, int, int, int)); +static int ucount __P((void)); + +static int ut; +static char buf[26]; +static time_t t; +static double etime; +static float hertz; +static int nintr; +static long *intrloc; +static char **intrname; +static int nextintsrow; + +struct utmp utmp; + + +WINDOW * +openkre() +{ + + ut = open(_PATH_UTMP, O_RDONLY); + if (ut < 0) + error("No utmp"); + return (stdscr); +} + +void +closekre(w) + WINDOW *w; +{ + + (void) close(ut); + if (w == NULL) + return; + wclear(w); + wrefresh(w); +} + + +static struct nlist namelist[] = { +#define X_CPTIME 0 + { "_cp_time" }, +#define X_CNT 1 + { "_cnt" }, +#define X_TOTAL 2 + { "_total" }, +#define X_DK_BUSY 3 + { "_dk_busy" }, +#define X_DK_TIME 4 + { "_dk_time" }, +#define X_DK_XFER 5 + { "_dk_xfer" }, +#define X_DK_WDS 6 + { "_dk_wds" }, +#define X_DK_SEEK 7 + { "_dk_seek" }, +#define X_NCHSTATS 8 + { "_nchstats" }, +#define X_INTRNAMES 9 + { "_intrnames" }, +#define X_EINTRNAMES 10 + { "_eintrnames" }, +#define X_INTRCNT 11 + { "_intrcnt" }, +#define X_EINTRCNT 12 + { "_eintrcnt" }, + { "" }, +}; + +/* + * 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 31 cols */ +#define MEMCOL 0 +#define PAGEROW 2 /* uses 4 rows and 26 cols */ +#define PAGECOL 36 +#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 30 cols */ +#define GENSTATCOL 20 +#define VMSTATROW 7 /* uses 17 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 38 cols */ +#define NAMEICOL 0 +#define DISKROW 18 /* uses 5 rows and 50 cols (for 9 drives) */ +#define DISKCOL 0 + +#define DRIVESPACE 9 /* max # for space */ + +#if DK_NDRIVE > DRIVESPACE +#define MAXDRIVES DRIVESPACE /* max # to display */ +#else +#define MAXDRIVES DK_NDRIVE /* max # to display */ +#endif + +int +initkre() +{ + char *intrnamebuf, *cp; + int i; + static int once = 0; + + if (namelist[0].n_type == 0) { + if (kvm_nlist(kd, namelist)) { + nlisterr(namelist); + return(0); + } + if (namelist[0].n_type == 0) { + error("No namelist"); + return(0); + } + } + hertz = stathz ? stathz : hz; + if (! dkinit()) + return(0); + if (dk_ndrive && !once) { +#define allocate(e, t) \ + s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ + s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ + s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \ + z./**/e = (t *)calloc(dk_ndrive, sizeof (t)); + allocate(dk_time, long); + allocate(dk_wds, long); + allocate(dk_seek, long); + allocate(dk_xfer, long); + once = 1; +#undef allocate + } + if (nintr == 0) { + nintr = (namelist[X_EINTRCNT].n_value - + namelist[X_INTRCNT].n_value) / sizeof (long); + intrloc = calloc(nintr, sizeof (long)); + intrname = calloc(nintr, sizeof (long)); + intrnamebuf = malloc(namelist[X_EINTRNAMES].n_value - + namelist[X_INTRNAMES].n_value); + if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) { + error("Out of memory\n"); + if (intrnamebuf) + free(intrnamebuf); + if (intrname) + free(intrname); + if (intrloc) + free(intrloc); + nintr = 0; + return(0); + } + NREAD(X_INTRNAMES, intrnamebuf, NVAL(X_EINTRNAMES) - + NVAL(X_INTRNAMES)); + for (cp = intrnamebuf, i = 0; i < nintr; i++) { + intrname[i] = cp; + cp += strlen(cp) + 1; + } + nextintsrow = INTSROW + 2; + allocinfo(&s); + allocinfo(&s1); + allocinfo(&s2); + allocinfo(&z); + } + getinfo(&s2, RUN); + copyinfo(&s2, &s1); + return(1); +} + +void +fetchkre() +{ + time_t now; + + time(&now); + strcpy(buf, ctime(&now)); + buf[16] = '\0'; + getinfo(&s, state); +} + +void +labelkre() +{ + register int i, j; + + clear(); + mvprintw(STATROW, STATCOL + 4, "users Load"); + mvprintw(MEMROW, MEMCOL, "Mem:KB REAL VIRTUAL"); + mvprintw(MEMROW + 1, MEMCOL, " Tot Share Tot Share"); + mvprintw(MEMROW + 2, MEMCOL, "Act"); + mvprintw(MEMROW + 3, MEMCOL, "All"); + + mvprintw(MEMROW + 1, MEMCOL + 31, "Free"); + + mvprintw(PAGEROW, PAGECOL, " PAGING SWAPPING "); + mvprintw(PAGEROW + 1, PAGECOL, " in out in out "); + mvprintw(PAGEROW + 2, PAGECOL, "count"); + mvprintw(PAGEROW + 3, PAGECOL, "pages"); + + mvprintw(INTSROW, INTSCOL + 3, " Interrupts"); + mvprintw(INTSROW + 1, INTSCOL + 9, "total"); + + mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow"); + mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "objlk"); + mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "objht"); + mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "zfod"); + mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "nzfod"); + mvprintw(VMSTATROW + 5, VMSTATCOL + 10, "%%zfod"); + mvprintw(VMSTATROW + 6, VMSTATCOL + 10, "kern"); + mvprintw(VMSTATROW + 7, VMSTATCOL + 10, "wire"); + mvprintw(VMSTATROW + 8, VMSTATCOL + 10, "act"); + mvprintw(VMSTATROW + 9, VMSTATCOL + 10, "inact"); + mvprintw(VMSTATROW + 10, VMSTATCOL + 10, "free"); + mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "daefr"); + mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "prcfr"); + mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "react"); + mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "scan"); + mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "hdrev"); + if (LINES - 1 > VMSTATROW + 16) + mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "intrn"); + + mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt"); + + mvprintw(GRAPHROW, GRAPHCOL, + " . %% Sys . %% User . %% Nice . %% Idle"); + mvprintw(PROCSROW, PROCSCOL, "Proc:r p d s w"); + mvprintw(GRAPHROW + 1, GRAPHCOL, + "| | | | | | | | | | |"); + + mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache"); + mvprintw(NAMEIROW + 1, NAMEICOL, + " Calls hits %% hits %%"); + mvprintw(DISKROW, DISKCOL, "Discs"); + mvprintw(DISKROW + 1, DISKCOL, "seeks"); + mvprintw(DISKROW + 2, DISKCOL, "xfers"); + mvprintw(DISKROW + 3, DISKCOL, " blks"); + mvprintw(DISKROW + 4, DISKCOL, " msps"); + j = 0; + for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++) + if (dk_select[i]) { + mvprintw(DISKROW, DISKCOL + 5 + 5 * j, + " %3.3s", dr_name[j]); + j++; + } + for (i = 0; i < nintr; i++) { + if (intrloc[i] == 0) + continue; + mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]); + } +} + +#define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;} +#define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;} +#define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \ + if(state == TIME) s1.nchstats.fld = t;} +#define PUTRATE(fld, l, c, w) \ + Y(fld); \ + putint((int)((float)s.fld/etime + 0.5), l, c, w) +#define MAXFAIL 5 + +static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' }; +static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE }; + +void +showkre() +{ + float f1, f2; + int psiz, inttotal; + int i, l, c; + static int failcnt = 0; + + for (i = 0; i < dk_ndrive; i++) { + X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); + } + 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) { + clear(); + mvprintw(2, 10, "The alternate system clock has died!"); + mvprintw(3, 10, "Reverting to ``pigs'' display."); + move(CMDLINE, 0); + refresh(); + failcnt = 0; + sleep(5); + command("pigs"); + } + return; + } + failcnt = 0; + etime /= hertz; + 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]); + } + X(intrcnt); + l = (int)((float)s.intrcnt[i]/etime + 0.5); + inttotal += l; + putint(l, intrloc[i], INTSCOL, 8); + } + putint(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; + if (state == TIME) + s1.nchcount = s.nchcount; + + psiz = 0; + f2 = 0.0; + + /* + * Last CPU state not calculated yet. + */ + for (c = 0; c < CPUSTATES - 1; c++) { + i = cpuorder[c]; + f1 = cputime(i); + f2 += f1; + l = (int) ((f2 + 1.0) / 2.0) - psiz; + if (c == 0) + putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0); + else + putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c, + 5, 1, 0); + move(GRAPHROW + 2, psiz); + psiz += l; + while (l-- > 0) + addch(cpuchar[c]); + } + + putint(ucount(), STATROW, STATCOL, 3); + putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0); + putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0); + putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0); + mvaddstr(STATROW, STATCOL + 53, buf); +#define pgtokb(pg) ((pg) * cnt.v_page_size / 1024) + putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 3, 6); + putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 9, 6); + putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 15, 7); + putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 22, 7); + putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 3, 6); + putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 9, 6); + putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 15, 7); + putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 22, 7); + putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 29, 6); + putint(total.t_rq - 1, PROCSROW + 1, PROCSCOL + 3, 3); + putint(total.t_pw, PROCSROW + 1, PROCSCOL + 6, 3); + putint(total.t_dw, PROCSROW + 1, PROCSCOL + 9, 3); + putint(total.t_sl, PROCSROW + 1, PROCSCOL + 12, 3); + putint(total.t_sw, PROCSROW + 1, PROCSCOL + 15, 3); + PUTRATE(Cnt.v_cow_faults, VMSTATROW + 0, VMSTATCOL + 3, 6); + PUTRATE(Cnt.v_lookups, VMSTATROW + 1, VMSTATCOL + 3, 6); + PUTRATE(Cnt.v_hits, VMSTATROW + 2, VMSTATCOL + 3, 6); + PUTRATE(Cnt.v_zfod, VMSTATROW + 3, VMSTATCOL + 4, 5); + PUTRATE(Cnt.v_nzfod, VMSTATROW + 4, VMSTATCOL + 3, 6); + putfloat(cnt.v_nzfod == 0 ? 0.0 : (100.0 * cnt.v_zfod / cnt.v_nzfod), + VMSTATROW + 5, VMSTATCOL + 2, 7, 2, 1); + putint(pgtokb(cnt.v_kernel_pages), VMSTATROW + 6, VMSTATCOL, 9); + putint(pgtokb(cnt.v_wire_count), VMSTATROW + 7, VMSTATCOL, 9); + putint(pgtokb(cnt.v_active_count), VMSTATROW + 8, VMSTATCOL, 9); + putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 9, VMSTATCOL, 9); + putint(pgtokb(cnt.v_free_count), VMSTATROW + 10, VMSTATCOL, 9); + PUTRATE(Cnt.v_dfree, VMSTATROW + 11, VMSTATCOL, 9); + PUTRATE(Cnt.v_pfree, VMSTATROW + 12, VMSTATCOL, 9); + PUTRATE(Cnt.v_reactivated, VMSTATROW + 13, VMSTATCOL, 9); + PUTRATE(Cnt.v_scan, VMSTATROW + 14, VMSTATCOL, 9); + PUTRATE(Cnt.v_rev, VMSTATROW + 15, VMSTATCOL, 9); + if (LINES - 1 > VMSTATROW + 16) + PUTRATE(Cnt.v_intrans, VMSTATROW + 16, VMSTATCOL, 9); + PUTRATE(Cnt.v_pageins, PAGEROW + 2, PAGECOL + 5, 5); + PUTRATE(Cnt.v_pageouts, PAGEROW + 2, PAGECOL + 10, 5); + PUTRATE(Cnt.v_swpin, PAGEROW + 2, PAGECOL + 15, 5); /* - */ + PUTRATE(Cnt.v_swpout, PAGEROW + 2, PAGECOL + 20, 5); /* - */ + PUTRATE(Cnt.v_pgpgin, PAGEROW + 3, PAGECOL + 5, 5); /* ? */ + PUTRATE(Cnt.v_pgpgout, PAGEROW + 3, PAGECOL + 10, 5); /* ? */ + PUTRATE(Cnt.v_pswpin, PAGEROW + 3, PAGECOL + 15, 5); /* - */ + PUTRATE(Cnt.v_pswpout, PAGEROW + 3, PAGECOL + 20, 5); /* - */ + PUTRATE(Cnt.v_swtch, GENSTATROW + 1, GENSTATCOL, 5); + PUTRATE(Cnt.v_trap, GENSTATROW + 1, GENSTATCOL + 5, 5); + PUTRATE(Cnt.v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 5); + PUTRATE(Cnt.v_intr, GENSTATROW + 1, GENSTATCOL + 15, 5); + PUTRATE(Cnt.v_soft, GENSTATROW + 1, GENSTATCOL + 20, 5); + PUTRATE(Cnt.v_faults, GENSTATROW + 1, GENSTATCOL + 25, 5); + mvprintw(DISKROW, DISKCOL + 5, " "); + for (i = 0, c = 0; i < dk_ndrive && c < MAXDRIVES; i++) + if (dk_select[i]) { + mvprintw(DISKROW, DISKCOL + 5 + 5 * c, + " %3.3s", dr_name[i]); + dinfo(i, ++c); + } + putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9); + putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9); +#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 + 23, 9); + putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount), + NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1); +#undef nz +} + +int +cmdkre(cmd, args) + char *cmd, *args; +{ + + if (prefix(cmd, "run")) { + copyinfo(&s2, &s1); + state = RUN; + return (1); + } + if (prefix(cmd, "boot")) { + state = BOOT; + copyinfo(&z, &s1); + return (1); + } + if (prefix(cmd, "time")) { + state = TIME; + return (1); + } + if (prefix(cmd, "zero")) { + if (state == RUN) + getinfo(&s1, RUN); + return (1); + } + return (dkcmd(cmd, args)); +} + +/* calculate number of users on the system */ +static int +ucount() +{ + register int nusers = 0; + + if (ut < 0) + return (0); + while (read(ut, &utmp, sizeof(utmp))) + if (utmp.ut_name[0] != '\0') + nusers++; + + lseek(ut, 0L, L_SET); + return (nusers); +} + +static float +cputime(indx) + int indx; +{ + double t; + register 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); +} + +static void +putint(n, l, c, w) + int n, l, c, w; +{ + char b[128]; + + move(l, c); + if (n == 0) { + while (w-- > 0) + addch(' '); + return; + } + sprintf(b, "%*d", w, n); + if (strlen(b) > w) { + while (w-- > 0) + addch('*'); + return; + } + addstr(b); +} + +static void +putfloat(f, l, c, w, d, nz) + double f; + int l, c, w, d, nz; +{ + char b[128]; + + move(l, c); + if (nz && f == 0.0) { + while (--w >= 0) + addch(' '); + return; + } + sprintf(b, "%*.*f", w, d, f); + if (strlen(b) > w) { + while (--w >= 0) + addch('*'); + return; + } + addstr(b); +} + +static void +getinfo(s, st) + struct Info *s; + enum state st; +{ + int mib[2], size; + extern int errno; + + NREAD(X_CPTIME, s->time, sizeof s->time); + NREAD(X_CNT, &s->Cnt, sizeof s->Cnt); + NREAD(X_DK_BUSY, &s->dk_busy, LONG); + NREAD(X_DK_TIME, s->dk_time, dk_ndrive * LONG); + NREAD(X_DK_XFER, s->dk_xfer, dk_ndrive * LONG); + NREAD(X_DK_WDS, s->dk_wds, dk_ndrive * LONG); + NREAD(X_DK_SEEK, s->dk_seek, dk_ndrive * LONG); + NREAD(X_NCHSTATS, &s->nchstats, sizeof s->nchstats); + NREAD(X_INTRCNT, s->intrcnt, nintr * LONG); + size = sizeof(s->Total); + mib[0] = CTL_VM; + mib[1] = VM_METER; + if (sysctl(mib, 2, &s->Total, &size, NULL, 0) < 0) { + error("Can't get kernel info: %s\n", strerror(errno)); + bzero(&s->Total, sizeof(s->Total)); + } +} + +static void +allocinfo(s) + struct Info *s; +{ + + s->intrcnt = (long *) malloc(nintr * sizeof(long)); + if (s->intrcnt == NULL) { + fprintf(stderr, "systat: out of memory\n"); + exit(2); + } +} + +static void +copyinfo(from, to) + register struct Info *from, *to; +{ + long *time, *wds, *seek, *xfer; + long *intrcnt; + + /* + * time, wds, seek, and xfer are malloc'd so we have to + * save the pointers before the structure copy and then + * copy by hand. + */ + time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek; + xfer = to->dk_xfer; intrcnt = to->intrcnt; + *to = *from; + bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long)); + bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long)); + bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long)); + bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long)); + bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int)); +} + +static void +dinfo(dn, c) + int dn, c; +{ + double words, atime, itime, xtime; + + c = DISKCOL + c * 5; + atime = s.dk_time[dn]; + atime /= hertz; + words = s.dk_wds[dn]*32.0; /* number of words transferred */ + xtime = dk_mspw[dn]*words; /* transfer time */ + itime = atime - xtime; /* time not transferring */ + if (xtime < 0) + itime += xtime, xtime = 0; + if (itime < 0) + xtime += itime, itime = 0; + putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5); + putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5); + putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5); + if (s.dk_seek[dn]) + putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1); + else + putint(0, DISKROW + 4, c, 5); +} |
