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1.1 root 1: /*
2: * Copyright (c) 1983 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: */
6:
7: #ifndef lint
8: static char sccsid[] = "@(#)vmstat.c 5.7 (Berkeley) 4/29/86";
9: #endif not lint
10:
11: /*
12: * Cursed vmstat -- from Robert Elz.
13: */
14:
15: #include "systat.h"
16:
17: #include <ctype.h>
18: #include <utmp.h>
19:
20: #include <sys/vm.h>
21: #include <sys/buf.h>
22: #include <sys/stat.h>
23: #include <sys/dir.h>
24: #include <sys/user.h>
25: #include <sys/proc.h>
26: #include <sys/namei.h>
27:
28: #include <vax/pte.h>
29:
30: static int ut;
31:
32: WINDOW *
33: openkre()
34: {
35:
36: ut = open("/etc/utmp", O_RDONLY);
37: if (ut < 0)
38: error("No utmp");
39: return (stdscr);
40: }
41:
42: closekre(w)
43: WINDOW *w;
44: {
45:
46: (void) close(ut);
47: if (w == NULL)
48: return;
49: wclear(w);
50: wrefresh(w);
51: }
52:
53: long time();
54: float cputime();
55: struct utmp utmp;
56:
57: static struct nlist name[] = {
58: { "_cp_time" },
59: #define X_CPTIME 0
60: { "_rate" },
61: #define X_RATE 1
62: { "_total" },
63: #define X_TOTAL 2
64: { "_proc" },
65: #define X_PROC 3
66: { "_nproc" },
67: #define X_NPROC 4
68: { "_sum" },
69: #define X_SUM 5
70: { "_dk_busy" },
71: #define X_DK_BUSY 6
72: { "_dk_time" },
73: #define X_DK_TIME 7
74: { "_dk_xfer" },
75: #define X_DK_XFER 8
76: { "_dk_wds" },
77: #define X_DK_WDS 9
78: { "_tk_nin" },
79: #define X_TK_NIN 10
80: { "_tk_nout" },
81: #define X_TK_NOUT 11
82: { "_dk_seek" },
83: #define X_DK_SEEK 12
84: { "_nchstats" },
85: #define X_NCHSTATS 13
86: { "_intrnames" },
87: #define X_INTRNAMES 14
88: { "_eintrnames" },
89: #define X_EINTRNAMES 15
90: { "_intrcnt" },
91: #define X_INTRCNT 16
92: { "_eintrcnt" },
93: #define X_EINTRCNT 17
94: { "" },
95: };
96:
97: static struct Info {
98: long time[CPUSTATES];
99: struct vmmeter Rate;
100: struct vmtotal Total;
101: struct vmmeter Sum;
102: struct forkstat Forkstat;
103: long *dk_time;
104: long *dk_wds;
105: long *dk_seek;
106: long *dk_xfer;
107: int dk_busy;
108: long tk_nin;
109: long tk_nout;
110: struct nchstats nchstats;
111: long nchcount;
112: long *intrcnt;
113: } s, s1, s2, z;
114:
115: #define total s.Total
116: #define sum s.Sum
117: #define sumold s1.Sum
118: #define rate s.Rate
119: #define nchtotal s.nchstats
120: #define oldnchtotal s1.nchstats
121: #define oldrate s1.Rate
122:
123: static char buf[26];
124: static time_t t;
125: static double etime;
126: static float hertz;
127: static int nintr;
128: static long *intrloc;
129: static char **intrname;
130: static int nextintsrow;
131:
132: static enum state { BOOT, TIME, RUN } state = TIME;
133:
134: /*
135: * These constants define where the major pieces are laid out
136: */
137: #define PROCSROW 13 /* uses 2 rows and 20 cols */
138: #define PROCSCOL 0
139: #define NAMEIROW 20 /* uses 3 rows and 38 cols */
140: #define NAMEICOL 0
141: #define GRAPHROW 16 /* uses 3 rows and 51 cols */
142: #define GRAPHCOL 0
143: #define GENSTATROW 14 /* uses 8 rows and 11 cols */
144: #define GENSTATCOL 51
145: #define INTSROW 2 /* uses all rows to bottom and 17 cols */
146: #define INTSCOL 63
147: #define STATROW 0 /* uses 1 row and 68 cols */
148: #define STATCOL 2
149: #define PAGEROW 2 /* uses 11 rows and 26 cols */
150: #define PAGECOL 36
151: #define MEMROW 2 /* uses 4 rows and 31 cols */
152: #define MEMCOL 0
153: #define DISKROW 7 /* uses 5 rows and 35 cols */
154: #define DISKCOL 0
155:
156: initkre()
157: {
158: char *intrnamebuf, *cp;
159: int i;
160: static int once = 0;
161:
162: if (name[0].n_type == 0) {
163: nlist("/vmunix",name);
164: if (name[0].n_type == 0) {
165: error("No namelist");
166: return(0);
167: }
168: }
169: hertz = phz ? phz : hz;
170: if (! dkinit())
171: return(0);
172: if (dk_ndrive && !once) {
173: #define allocate(e, t) \
174: s./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \
175: s1./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \
176: s2./**/e = (t *)calloc(dk_ndrive, sizeof (t)); \
177: z./**/e = (t *)calloc(dk_ndrive, sizeof (t));
178: allocate(dk_time, long);
179: allocate(dk_wds, long);
180: allocate(dk_seek, long);
181: allocate(dk_xfer, long);
182: once = 1;
183: #undef allocate
184: }
185: if (nintr == 0) {
186: nintr = (name[X_EINTRCNT].n_value -
187: name[X_INTRCNT].n_value) / sizeof (long);
188: intrloc = (long *) calloc(nintr, sizeof (long));
189: intrname = (char **) calloc(nintr, sizeof (long));
190: intrnamebuf = malloc(name[X_EINTRNAMES].n_value -
191: name[X_INTRNAMES].n_value);
192: if (intrnamebuf == 0 || intrname == 0 || intrloc == 0) {
193: error("Out of memory\n");
194: if (intrnamebuf)
195: free(intrnamebuf);
196: if (intrname)
197: free(intrname);
198: if (intrloc)
199: free(intrloc);
200: nintr = 0;
201: return(0);
202: }
203: lseek(kmem, (long)name[X_INTRNAMES].n_value, L_SET);
204: read(kmem, intrnamebuf, name[X_EINTRNAMES].n_value -
205: name[X_INTRNAMES].n_value);
206: for (cp = intrnamebuf, i = 0; i < nintr; i++) {
207: intrname[i] = cp;
208: cp += strlen(cp) + 1;
209: }
210: nextintsrow = INTSROW + 2;
211: allocinfo(&s);
212: allocinfo(&s1);
213: allocinfo(&s2);
214: allocinfo(&z);
215: }
216: getinfo(&s2, RUN);
217: copyinfo(&s2, &s1);
218: return(1);
219: }
220:
221: fetchkre()
222: {
223: time_t now;
224:
225: time(&now);
226: strcpy(buf, ctime(&now));
227: buf[16] = '\0';
228: getinfo(&s, state);
229: }
230:
231: #define MAXDRIVES 6 /* max # to display */
232:
233: labelkre()
234: {
235: register i, j;
236:
237: clear();
238: mvprintw(STATROW, STATCOL + 4, "users Load");
239: mvprintw(MEMROW, MEMCOL, "Mem REAL VIRTUAL");
240: mvprintw(MEMROW + 1, MEMCOL, " Tot Text Tot Text");
241: mvprintw(MEMROW + 2, MEMCOL, "Act");
242: mvprintw(MEMROW + 3, MEMCOL, "All");
243:
244: mvprintw(MEMROW + 1, MEMCOL + 28, "Free");
245:
246: mvprintw(PAGEROW, PAGECOL, " PAGING SWAPING ");
247: mvprintw(PAGEROW + 1, PAGECOL, " in out in out ");
248: mvprintw(PAGEROW + 2, PAGECOL, "count");
249: mvprintw(PAGEROW + 3, PAGECOL, "pages");
250:
251: mvprintw(INTSROW, INTSCOL, " Interrupts");
252: mvprintw(INTSROW + 1, INTSCOL + 9, "total");
253:
254: mvprintw(GENSTATROW, GENSTATCOL + 8, "Csw");
255: mvprintw(GENSTATROW + 1, GENSTATCOL + 8, "Trp");
256: mvprintw(GENSTATROW + 2, GENSTATCOL + 8, "Sys");
257: mvprintw(GENSTATROW + 3, GENSTATCOL + 8, "Int");
258: mvprintw(GENSTATROW + 4, GENSTATCOL + 8, "Pdm");
259: mvprintw(GENSTATROW + 5, GENSTATCOL + 8, "Flt");
260: mvprintw(GENSTATROW + 6, GENSTATCOL + 8, "Scn");
261: mvprintw(GENSTATROW + 7, GENSTATCOL + 8, "Rev");
262:
263: mvprintw(PAGEROW + 5, PAGECOL, "Rec It F/S F/F RFL Fre SFr");
264:
265: mvprintw(PAGEROW + 8, PAGECOL + 9, " zf");
266: mvprintw(PAGEROW + 9, PAGECOL + 9, "nzf");
267: mvprintw(PAGEROW + 10, PAGECOL + 9, "%%zf");
268: mvprintw(PAGEROW + 8, PAGECOL + 23, " xf");
269: mvprintw(PAGEROW + 9, PAGECOL + 23, "nxf");
270: mvprintw(PAGEROW + 10, PAGECOL + 23, "%%xf");
271:
272: mvprintw(GRAPHROW, GRAPHCOL,
273: " . %% Sys . %% User . %% Nice . %% Idle");
274: mvprintw(PROCSROW, PROCSCOL, "Procs r p d s w");
275: mvprintw(GRAPHROW + 1, GRAPHCOL,
276: "| | | | | | | | | | |");
277:
278: mvprintw(NAMEIROW, NAMEICOL, "Namei Sys-cache Proc-cache");
279: mvprintw(NAMEIROW + 1, NAMEICOL,
280: " Calls hits %% hits %%");
281: mvprintw(DISKROW, DISKCOL, "Discs");
282: mvprintw(DISKROW + 1, DISKCOL, "seeks");
283: mvprintw(DISKROW + 2, DISKCOL, "xfers");
284: mvprintw(DISKROW + 3, DISKCOL, " blks");
285: mvprintw(DISKROW + 4, DISKCOL, " msps");
286: j = 0;
287: for (i = 0; i < dk_ndrive && j < MAXDRIVES; i++)
288: if (dk_select[i]) {
289: mvprintw(DISKROW, DISKCOL + 5 + 5 * j,
290: " %3.3s", dr_name[j]);
291: j++;
292: }
293: for (i = 0; i < nintr; i++) {
294: if (intrloc[i] == 0)
295: continue;
296: mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s", intrname[i]);
297: }
298: }
299:
300: #define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;}
301: #define Y(fld) {t = s.fld; s.fld -= s1.fld; if(state == TIME) s1.fld = t;}
302: #define Z(fld) {t = s.nchstats.fld; s.nchstats.fld -= s1.nchstats.fld; \
303: if(state == TIME) s1.nchstats.fld = t;}
304: #define MAXFAIL 5
305:
306: static char cpuchar[CPUSTATES] = { '=' , '>', '-', ' ' };
307: static char cpuorder[CPUSTATES] = { CP_SYS, CP_USER, CP_NICE, CP_IDLE };
308:
309: showkre()
310: {
311: float f1, f2;
312: int psiz, inttotal;
313: int i, l, c;
314: static int failcnt = 0;
315:
316: for (i = 0; i < dk_ndrive; i++) {
317: X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time);
318: }
319: Y(tk_nin); Y(tk_nout);
320: etime = 0;
321: for(i = 0; i < CPUSTATES; i++) {
322: X(time);
323: etime += s.time[i];
324: }
325: if (etime < 5.0) { /* < 5 ticks - ignore this trash */
326: if (failcnt++ >= MAXFAIL) {
327: clear();
328: mvprintw(2, 10, "The alternate system clock has died!");
329: mvprintw(3, 10, "Reverting to ``pigs'' display.");
330: move(CMDLINE, 0);
331: refresh();
332: failcnt = 0;
333: sleep(5);
334: command("pigs");
335: }
336: return;
337: }
338: failcnt = 0;
339: etime /= hertz;
340: inttotal = 0;
341: for (i = 0; i < nintr; i++) {
342: if (s.intrcnt[i] == 0)
343: continue;
344: if (intrloc[i] == 0) {
345: if (nextintsrow == LINES)
346: continue;
347: intrloc[i] = nextintsrow++;
348: mvprintw(intrloc[i], INTSCOL + 9, "%-8.8s",
349: intrname[i]);
350: }
351: X(intrcnt);
352: l = (int)((float)s.intrcnt[i]/etime + 0.5);
353: inttotal += l;
354: putint(l, intrloc[i], INTSCOL, 8);
355: }
356: putint(inttotal, INTSROW + 1, INTSCOL, 8);
357: Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss);
358: Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes);
359: s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits +
360: nchtotal.ncs_miss + nchtotal.ncs_long;
361: if (state == TIME)
362: s1.nchcount = s.nchcount;
363:
364: psiz = 0;
365: f2 = 0.0;
366: for (c = 0; c < CPUSTATES; c++) {
367: i = cpuorder[c];
368: f1 = cputime(i);
369: f2 += f1;
370: l = (int) ((f2 + 1.0) / 2.0) - psiz;
371: if (c == 0)
372: putfloat(f1, GRAPHROW, GRAPHCOL + 1, 5, 1, 0);
373: else
374: putfloat(f1, GRAPHROW, GRAPHCOL + 12 * c,
375: 5, 1, 0);
376: move(GRAPHROW + 2, psiz);
377: psiz += l;
378: while (l-- > 0)
379: addch(cpuchar[c]);
380: }
381:
382: putint(ucount(), STATROW, STATCOL, 3);
383: putfloat(avenrun[0], STATROW, STATCOL + 17, 6, 2, 0);
384: putfloat(avenrun[1], STATROW, STATCOL + 23, 6, 2, 0);
385: putfloat(avenrun[2], STATROW, STATCOL + 29, 6, 2, 0);
386: mvaddstr(STATROW, STATCOL + 53, buf);
387: putint(total.t_arm/2, MEMROW + 2, MEMCOL + 4, 5);
388: putint(total.t_armtxt/2, MEMROW + 2, MEMCOL + 9, 5);
389: putint(total.t_avm/2, MEMROW + 2, MEMCOL + 14, 6);
390: putint(total.t_avmtxt/2, MEMROW + 2, MEMCOL + 20, 5);
391: putint(total.t_rm/2, MEMROW + 3, MEMCOL + 4, 5);
392: putint(total.t_rmtxt/2, MEMROW + 3, MEMCOL + 9, 5);
393: putint(total.t_vm/2, MEMROW + 3, MEMCOL + 14, 6);
394: putint(total.t_vmtxt/2, MEMROW + 3, MEMCOL + 20, 5);
395: putint(total.t_free/2, MEMROW + 2, MEMCOL + 27, 5);
396: putint(total.t_rq, PROCSROW + 1, PROCSCOL + 5, 3);
397: putint(total.t_pw, PROCSROW + 1, PROCSCOL + 8, 3);
398: putint(total.t_dw, PROCSROW + 1, PROCSCOL + 11, 3);
399: putint(total.t_sl, PROCSROW + 1, PROCSCOL + 14, 3);
400: putint(total.t_sw, PROCSROW + 1, PROCSCOL + 17, 3);
401: putrate(rate.v_swtch, oldrate.v_swtch,
402: GENSTATROW, GENSTATCOL, 7);
403: putrate(rate.v_trap, oldrate.v_trap,
404: GENSTATROW + 1, GENSTATCOL, 7);
405: putrate(rate.v_syscall, oldrate.v_syscall,
406: GENSTATROW + 2, GENSTATCOL, 7);
407: putrate(rate.v_intr, oldrate.v_intr,
408: GENSTATROW + 3, GENSTATCOL, 7);
409: putrate(rate.v_pdma, oldrate.v_pdma,
410: GENSTATROW + 4, GENSTATCOL, 7);
411: putrate(rate.v_faults, oldrate.v_faults,
412: GENSTATROW + 5, GENSTATCOL, 7);
413: putrate(rate.v_scan, oldrate.v_scan,
414: GENSTATROW + 6, GENSTATCOL, 7);
415: putrate(rate.v_rev, oldrate.v_rev,
416: GENSTATROW + 7, GENSTATCOL, 7);
417: putrate(rate.v_pgin, oldrate.v_pgin, PAGEROW + 2,
418: PAGECOL + 5, 5);
419: putrate(rate.v_pgout, oldrate.v_pgout, PAGEROW + 2,
420: PAGECOL + 10, 5);
421: putrate(rate.v_swpin, oldrate.v_swpin, PAGEROW + 2,
422: PAGECOL + 15, 5);
423: putrate(rate.v_swpout, oldrate.v_swpout, PAGEROW + 2,
424: PAGECOL + 20, 5);
425: putrate(rate.v_pgpgin, oldrate.v_pgpgin, PAGEROW + 3,
426: PAGECOL + 5, 5);
427: putrate(rate.v_pgpgout, oldrate.v_pgpgout, PAGEROW + 3,
428: PAGECOL + 10, 5);
429: putrate(rate.v_pswpin, oldrate.v_pswpin, PAGEROW + 3,
430: PAGECOL + 15, 5);
431: putrate(rate.v_pswpout, oldrate.v_pswpout, PAGEROW + 3,
432: PAGECOL + 20, 5);
433: putrate(rate.v_pgrec, oldrate.v_pgrec, PAGEROW + 6, PAGECOL, 3);
434: putrate(rate.v_intrans, oldrate.v_intrans, PAGEROW + 6,
435: PAGECOL + 4, 2);
436: putrate(rate.v_xsfrec, oldrate.v_xsfrec, PAGEROW + 6,
437: PAGECOL + 7, 3);
438: putrate(rate.v_xifrec, oldrate.v_xifrec, PAGEROW + 6,
439: PAGECOL + 11, 3);
440: putrate(rate.v_pgfrec, oldrate.v_pgfrec, PAGEROW + 6,
441: PAGECOL + 15, 3);
442: putrate(rate.v_dfree, oldrate.v_dfree, PAGEROW + 6,
443: PAGECOL + 19, 3);
444: putrate(rate.v_seqfree, oldrate.v_seqfree, PAGEROW + 6,
445: PAGECOL + 23, 3);
446: putrate(rate.v_zfod, oldrate.v_zfod, PAGEROW + 8, PAGECOL, 8);
447: putrate(rate.v_nzfod, oldrate.v_nzfod, PAGEROW + 9, PAGECOL, 8);
448: putrate(rate.v_exfod, oldrate.v_exfod, PAGEROW + 8,
449: PAGECOL + 14, 8);
450: putrate(rate.v_nexfod, oldrate.v_nexfod, PAGEROW + 9,
451: PAGECOL + 14, 8);
452: putfloat (
453: rate.v_nzfod == 0 ?
454: 0.0
455: : state != RUN ?
456: ( 100.0 * rate.v_zfod / rate.v_nzfod )
457: : rate.v_nzfod == oldrate.v_nzfod ?
458: 0.0
459: :
460: ( 100.0 * (rate.v_zfod-oldrate.v_zfod)
461: / (rate.v_nzfod-oldrate.v_nzfod) )
462: , PAGEROW + 10
463: , PAGECOL
464: , 8
465: , 2
466: , 1
467: );
468: putfloat (
469: rate.v_nexfod == 0 ?
470: 0.0
471: : state != RUN ?
472: ( 100.0 * rate.v_exfod / rate.v_nexfod )
473: : rate.v_nexfod == oldrate.v_nexfod ?
474: 0.0
475: :
476: ( 100.0 * (rate.v_exfod-oldrate.v_exfod)
477: / (rate.v_nexfod-oldrate.v_nexfod) )
478: , PAGEROW + 10
479: , PAGECOL + 14
480: , 8
481: , 2
482: , 1
483: );
484: c = 0;
485: for (i = 0; i < dk_ndrive && c < MAXDRIVES; i++)
486: if (dk_select[i])
487: dinfo(i, ++c);
488:
489: putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 9);
490: putint(nchtotal.ncs_goodhits, NAMEIROW + 2, NAMEICOL + 9, 9);
491: #define nz(x) ((x) ? (x) : 1)
492: putfloat(nchtotal.ncs_goodhits * 100.0 / nz(s.nchcount),
493: NAMEIROW + 2, NAMEICOL + 19, 4, 0, 1);
494: putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 23, 9);
495: putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount),
496: NAMEIROW + 2, NAMEICOL + 34, 4, 0, 1);
497: #undef nz
498: }
499:
500: cmdkre(cmd, args)
501: char *cmd, *args;
502: {
503:
504: if (prefix(cmd, "run")) {
505: copyinfo(&s2, &s1);
506: state = RUN;
507: return (1);
508: }
509: if (prefix(cmd, "boot")) {
510: state = BOOT;
511: copyinfo(&z, &s1);
512: return (1);
513: }
514: if (prefix(cmd, "time")) {
515: state = TIME;
516: return (1);
517: }
518: if (prefix(cmd, "zero")) {
519: if (state == RUN)
520: getinfo(&s1, RUN);
521: return (1);
522: }
523: return (dkcmd(cmd, args));
524: }
525:
526: /* calculate number of users on the system */
527: static
528: ucount()
529: {
530: register int nusers = 0;
531:
532: if (ut < 0)
533: return (0);
534: while (read(ut, &utmp, sizeof(utmp)))
535: if (utmp.ut_name[0] != '\0')
536: nusers++;
537:
538: lseek(ut, 0L, L_SET);
539: return (nusers);
540: }
541:
542: static float
543: cputime(indx)
544: int indx;
545: {
546: double t;
547: register i;
548:
549: t = 0;
550: for (i = 0; i < CPUSTATES; i++)
551: t += s.time[i];
552: if (t == 0.0)
553: t = 1.0;
554: return (s.time[indx] * 100.0 / t);
555: }
556:
557: static
558: putrate(r, or, l, c, w)
559: {
560:
561: if (state != TIME) {
562: if (state == RUN)
563: r -= or;
564: putint((int)((float)r/etime + 0.5), l, c, w);
565: } else
566: putint(r, l, c, w);
567: }
568:
569: static
570: putint(n, l, c, w)
571: {
572: char b[128];
573:
574: move(l, c);
575: if (n == 0) {
576: while (w-- > 0)
577: addch(' ');
578: return;
579: }
580: sprintf(b, "%*d", w, n);
581: if (strlen(b) > w) {
582: while (w-- > 0)
583: addch('*');
584: return;
585: }
586: addstr(b);
587: }
588:
589: static
590: putfloat(f, l, c, w, d, nz)
591: float f;
592: {
593: char b[128];
594:
595: move(l, c);
596: if (nz && f == 0.0) {
597: while (w-- > 0)
598: addch(' ');
599: return;
600: }
601: sprintf(b, "%*.*f", w, d, f);
602: if (strlen(b) > w) {
603: while (w-- > 0)
604: addch('*');
605: return;
606: }
607: addstr(b);
608: }
609:
610: static
611: getinfo(s, st)
612: struct Info *s;
613: enum state st;
614: {
615:
616: lseek(kmem, (long)name[X_CPTIME].n_value,L_SET);
617: read(kmem, s->time, sizeof s->time);
618: if (st != TIME) {
619: lseek(kmem, (long)name[X_SUM].n_value, L_SET);
620: read(kmem, &s->Rate, sizeof s->Rate);
621: } else {
622: lseek(kmem, (long)name[X_RATE].n_value,L_SET);
623: read(kmem, &s->Rate, sizeof s->Rate);
624: }
625: lseek(kmem, (long)name[X_TOTAL].n_value, L_SET);
626: read(kmem, &s->Total, sizeof s->Total);
627: s->dk_busy = getw(name[X_DK_BUSY].n_value);
628: lseek(kmem, (long)name[X_DK_TIME].n_value, L_SET);
629: read(kmem, s->dk_time, dk_ndrive * sizeof (long));
630: lseek(kmem, (long)name[X_DK_XFER].n_value, L_SET);
631: read(kmem, s->dk_xfer, dk_ndrive * sizeof (long));
632: lseek(kmem, (long)name[X_DK_WDS].n_value, L_SET);
633: read(kmem, s->dk_wds, dk_ndrive * sizeof (long));
634: lseek(kmem, (long)name[X_DK_SEEK].n_value, L_SET);
635: read(kmem, s->dk_seek, dk_ndrive * sizeof (long));
636: s->tk_nin = getw(name[X_TK_NIN].n_value);
637: s->tk_nout = getw(name[X_TK_NOUT].n_value);
638: lseek(kmem, (long)name[X_NCHSTATS].n_value, L_SET);
639: read(kmem, &s->nchstats, sizeof s->nchstats);
640: lseek(kmem, (long)name[X_INTRCNT].n_value, L_SET);
641: read(kmem, s->intrcnt, nintr * sizeof (long));
642: }
643:
644: static
645: allocinfo(s)
646: struct Info *s;
647: {
648:
649: s->intrcnt = (long *) malloc(nintr * sizeof(long));
650: if (s->intrcnt == NULL) {
651: fprintf(stderr, "systat: out of memory\n");
652: exit(2);
653: }
654: }
655:
656: static
657: copyinfo(from, to)
658: register struct Info *from, *to;
659: {
660: long *time, *wds, *seek, *xfer;
661: long *intrcnt;
662:
663: time = to->dk_time; wds = to->dk_wds; seek = to->dk_seek;
664: xfer = to->dk_xfer; intrcnt = to->intrcnt;
665: *to = *from;
666: bcopy(from->dk_time, to->dk_time = time, dk_ndrive * sizeof (long));
667: bcopy(from->dk_wds, to->dk_wds = wds, dk_ndrive * sizeof (long));
668: bcopy(from->dk_seek, to->dk_seek = seek, dk_ndrive * sizeof (long));
669: bcopy(from->dk_xfer, to->dk_xfer = xfer, dk_ndrive * sizeof (long));
670: bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int));
671: }
672:
673: static
674: dinfo(dn, c)
675: {
676: double words, atime, itime, xtime;
677:
678: c = DISKCOL + c * 5;
679: atime = s.dk_time[dn];
680: atime /= hertz;
681: words = s.dk_wds[dn]*32.0; /* number of words transferred */
682: xtime = dk_mspw[dn]*words; /* transfer time */
683: itime = atime - xtime; /* time not transferring */
684: if (xtime < 0)
685: itime += xtime, xtime = 0;
686: if (itime < 0)
687: xtime += itime, itime = 0;
688: putint((int)((float)s.dk_seek[dn]/etime+0.5), DISKROW + 1, c, 5);
689: putint((int)((float)s.dk_xfer[dn]/etime+0.5), DISKROW + 2, c, 5);
690: putint((int)(words/etime/512.0 + 0.5), DISKROW + 3, c, 5);
691: if (s.dk_seek[dn])
692: putfloat(itime*1000.0/s.dk_seek[dn], DISKROW + 4, c, 5, 1, 1);
693: else
694: putint(0, DISKROW + 4, c, 5);
695: }
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