[unix-history] / usr / src / usr.bin / vmstat / vmstat.c

#ifndef lint
static	char *sccsid = "@(#)vmstat.c	4.9 (Berkeley) %G%";
#endif

#include <stdio.h>
#include <sys/param.h>
#include <sys/vm.h>
#include <sys/dk.h>
#include <nlist.h>
#include <sys/buf.h>
#ifdef vax
#include <vaxuba/ubavar.h>
#include <vaxmba/mbavar.h>
#endif
#ifdef sun
#include <sundev/mbvar.h>
#endif

struct nlist nl[] = {
#define	X_CPTIME	0
	{ "_cp_time" },
#define	X_RATE		1
	{ "_rate" },
#define X_TOTAL		2
	{ "_total" },
#define	X_DEFICIT	3
	{ "_deficit" },
#define	X_FORKSTAT	4
	{ "_forkstat" },
#define X_SUM		5
	{ "_sum" },
#define	X_FIRSTFREE	6
	{ "_firstfree" },
#define	X_MAXFREE	7
	{ "_maxfree" },
#define	X_BOOTTIME	8
	{ "_boottime" },
#define	X_DKXFER	9
	{ "_dk_xfer" },
#define X_REC		10
	{ "_rectime" },
#define X_PGIN		11
	{ "_pgintime" },
#define X_HZ		12
	{ "_hz" },
#ifdef vax
#define X_MBDINIT	13
	{ "_mbdinit" },
#define X_UBDINIT	14
	{ "_ubdinit" },
#endif
#ifdef sun
#define X_MBDINIT	13
	{ "_mbdinit" },
#endif
	{ "" },
};

char dr_name[DK_NDRIVE][10];
char dr_unit[DK_NDRIVE];
double	stat1();
int	firstfree, maxfree;
int	hz;
struct
{
	int	busy;
	long	time[CPUSTATES];
	long	xfer[DK_NDRIVE];
	struct	vmmeter Rate;
	struct	vmtotal	Total;
	struct	vmmeter Sum;
	struct	forkstat Forkstat;
	unsigned rectime;
	unsigned pgintime;
} s, s1, z;
#define	rate		s.Rate
#define	total		s.Total
#define	sum		s.Sum
#define	forkstat	s.Forkstat

struct	vmmeter osum;
int	zero;
int	deficit;
double	etime;
int 	mf;
int	swflag;

main(argc, argv)
	int argc;
	char **argv;
{
	time_t now;
	int lines;
	extern char *ctime();
	register i,j;
	int iter, nintv;
	time_t boottime;
	double f1, f2;
	long t;
	extern char _sobuf[];

#ifdef sun
	swflag = 1;
#endif
	setbuf(stdout, _sobuf);
	nlist("/vmunix", nl);
	if(nl[0].n_type == 0) {
		printf("no /vmunix namelist\n");
		exit(1);
	}
	mf = open("/dev/kmem", 0);
	if(mf < 0) {
		printf("cannot open /dev/kmem\n");
		exit(1);
	}
	iter = 0;
	argc--, argv++;
	while (argc>0 && argv[0][0]=='-') {
		char *cp = *argv++;
		argc--;
		while (*++cp) switch (*cp) {

		case 'S':
			swflag = 1 - swflag;
			break;


		case 't':
			dotimes();
			exit(0);

		case 'z':
			close(mf);
			mf = open("/dev/kmem", 2);
			lseek(mf, (long)nl[X_SUM].n_value, 0);
			write(mf, &z.Sum, sizeof z.Sum);
			exit(0);

		case 'f':
			doforkst();
			exit(0);
		
		case 's':
			dosum();
			exit(0);

		default:
			fprintf(stderr, "usage: vmstat [ -fs ] [ interval ] [ count]\n");
			exit(1);
		}
	}
	if(argc > 1)
		iter = atoi(argv[1]);
	lseek(mf, (long)nl[X_FIRSTFREE].n_value, 0);
	read(mf, &firstfree, sizeof firstfree);
	lseek(mf, (long)nl[X_MAXFREE].n_value, 0);
	read(mf, &maxfree, sizeof maxfree);
	lseek(mf, (long)nl[X_BOOTTIME].n_value, 0);
	read(mf, &boottime, sizeof boottime);
	lseek(mf, (long)nl[X_HZ].n_value, 0);
	read(mf, &hz, sizeof hz);
	for (i = 0; i < DK_NDRIVE; i++) {
		strcpy(dr_name[i], "xx");
		dr_unit[i] = i;
	}
	read_names();
	time(&now);
	nintv = now - boottime;
	if (nintv <= 0 || nintv > 60*60*24*365*10) {
		printf("Time makes no sense... namelist must be wrong.\n");
		exit(1);
	}
reprint:
	lines = 20;
	/* s1 = z; */
printf("\
 procs     memory                       page      disk  faults          cpu\n\
 r b w   avm  fre  %5s  pi  po  fr  de  sr %c%d %c%d %c%d %c%d  in  sy  cs us sy id\n\
", swflag ? "si so" : "re at",
 dr_name[0][0], dr_unit[0], dr_name[1][0], dr_unit[1], dr_name[2][0], dr_unit[2], dr_name[3][0], dr_unit[3]);
loop:
	lseek(mf, (long)nl[X_CPTIME].n_value, 0);
 	read(mf, s.time, sizeof s.time);
	lseek(mf, (long)nl[X_DKXFER].n_value, 0);
	read(mf, s.xfer, sizeof s.xfer);
	if (nintv != 1) {
		lseek(mf, (long)nl[X_SUM].n_value, 0);
		read(mf, &rate, sizeof rate);
	} else {
		lseek(mf, (long)nl[X_RATE].n_value, 0);
		read(mf, &rate, sizeof rate);
	}
	lseek(mf, (long)nl[X_TOTAL].n_value, 0);
	read(mf, &total, sizeof total);
	osum = sum;
	lseek(mf, (long)nl[X_SUM].n_value, 0);
	read(mf, &sum, sizeof sum);
	lseek(mf, (long)nl[X_DEFICIT].n_value, 0);
	read(mf, &deficit, sizeof deficit);
	etime = 0;
	for (i=0; i < DK_NDRIVE; i++) {
		t = s.xfer[i];
		s.xfer[i] -= s1.xfer[i];
		s1.xfer[i] = t;
	}
	for (i=0; i < CPUSTATES; i++) {
		t = s.time[i];
		s.time[i] -= s1.time[i];
		s1.time[i] = t;
		etime += s.time[i];
	}
	if(etime == 0.)
		etime = 1.;
	printf("%2d%2d%2d", total.t_rq, total.t_dw+total.t_pw, total.t_sw);
#define pgtok(a) ((a)*NBPG/1024)
	printf("%6d%5d", pgtok(total.t_avm), pgtok(total.t_free));
	printf("%4d%3d",
	    swflag ?
	        sum.v_swpin-osum.v_swpin :
	        (rate.v_pgrec - (rate.v_xsfrec+rate.v_xifrec))/nintv,
	    swflag ?
		sum.v_swpout-osum.v_swpout :
	        (rate.v_xsfrec+rate.v_xifrec)/nintv);
	printf("%4d", pgtok(rate.v_pgpgin)/nintv);
	printf("%4d%4d%4d%4d", pgtok(rate.v_pgpgout)/nintv,
	    pgtok(rate.v_dfree)/nintv, pgtok(deficit), rate.v_scan/nintv);
	etime /= 60.;
	for(i=0; i<4; i++)
		stats(i);
#ifdef sun
	printf("%4d%4d", (rate.v_intr/nintv), rate.v_syscall/nintv);
#endif
#ifdef vax
	printf("%4d%4d", (rate.v_intr/nintv) - hz, rate.v_syscall/nintv);
#endif
	printf("%4d", rate.v_swtch/nintv);
	for(i=0; i<CPUSTATES; i++) {
		float f = stat1(i);
		if (i == 0) {		/* US+NI */
			i++;
			f += stat1(i);
		}
		printf("%3.0f", f);
	}
	printf("\n");
	fflush(stdout);
contin:
	nintv = 1;
	--iter;
	if(iter)
	if(argc > 0) {
		sleep(atoi(argv[0]));
		if (--lines <= 0)
			goto reprint;
		goto loop;
	}
}

dotimes()
{

	lseek(mf, (long)nl[X_REC].n_value, 0);
	read(mf, &s.rectime, sizeof s.rectime);
	lseek(mf, (long)nl[X_PGIN].n_value, 0);
	read(mf, &s.pgintime, sizeof s.pgintime);
	lseek(mf, (long)nl[X_SUM].n_value, 0);
	read(mf, &sum, sizeof sum);
	printf("%d reclaims, %d total time (usec)\n", sum.v_pgrec, s.rectime);
	printf("average: %d usec / reclaim\n", s.rectime/sum.v_pgrec);
	printf("\n");
	printf("%d page ins, %d total time (msec)\n",sum.v_pgin, s.pgintime/10);
	printf("average: %8.1f msec / page in\n", s.pgintime/(sum.v_pgin*10.0));
}

dosum()
{

	lseek(mf, (long)nl[X_SUM].n_value, 0);
	read(mf, &sum, sizeof sum);
	printf("%9d swap ins\n", sum.v_swpin);
	printf("%9d swap outs\n", sum.v_swpout);
	printf("%9d pages swapped in\n", sum.v_pswpin / CLSIZE);
	printf("%9d pages swapped out\n", sum.v_pswpout / CLSIZE);
	printf("%9d total address trans. faults taken\n", sum.v_faults);
	printf("%9d page ins\n", sum.v_pgin);
	printf("%9d page outs\n", sum.v_pgout);
	printf("%9d pages paged in\n", sum.v_pgpgin);
	printf("%9d pages paged out\n", sum.v_pgpgout);
	printf("%9d sequential process pages freed\n", sum.v_seqfree);
	printf("%9d total reclaims\n", sum.v_pgrec);
	printf("%9d reclaims from free list\n", sum.v_pgfrec);
	printf("%9d intransit blocking page faults\n", sum.v_intrans);
	printf("%9d zero fill pages created\n", sum.v_nzfod / CLSIZE);
	printf("%9d zero fill page faults\n", sum.v_zfod / CLSIZE);
	printf("%9d executable fill pages created\n", sum.v_nexfod / CLSIZE);
	printf("%9d executable fill page faults\n", sum.v_exfod / CLSIZE);
	printf("%9d swap text pages found in free list\n", sum.v_xsfrec);
	printf("%9d inode text pages found in free list\n", sum.v_xifrec);
	printf("%9d file fill pages created\n", sum.v_nvrfod / CLSIZE);
	printf("%9d file fill page faults\n", sum.v_vrfod / CLSIZE);
	printf("%9d pages examined by the clock daemon\n", sum.v_scan);
	printf("%9d revolutions of the clock hand\n", sum.v_rev);
	printf("%9d pages freed by the clock daemon\n", sum.v_dfree / CLSIZE);
	printf("%9d cpu context switches\n", sum.v_swtch);
	printf("%9d device interrupts\n", sum.v_intr);
	printf("%9d pseduo-dma dz interrupts\n", sum.v_pdma);
	printf("%9d traps\n", sum.v_trap);
	printf("%9d system calls\n", sum.v_syscall);
}

doforkst()
{

	lseek(mf, (long)nl[X_FORKSTAT].n_value, 0);
	read(mf, &forkstat, sizeof forkstat);
	printf("%d forks, %d pages, average=%.2f\n",
		forkstat.cntfork, forkstat.sizfork,
		(float) forkstat.sizfork / forkstat.cntfork);
	printf("%d vforks, %d pages, average=%.2f\n",
		forkstat.cntvfork, forkstat.sizvfork,
		(float)forkstat.sizvfork / forkstat.cntvfork);
}

stats(dn)
{

	if (dn >= DK_NDRIVE) {
		printf("  0");
		return;
	}
	printf("%3.0f", s.xfer[dn]/etime);
}

double
stat1(row)
{
	double t;
	register i;

	t = 0;
	for(i=0; i<CPUSTATES; i++)
		t += s.time[i];
	if(t == 0.)
		t = 1.;
	return(s.time[row]*100./t);
}

pct(top, bot)
{

	if (bot == 0)
		return (0);
	return ((top * 100) / bot);
}

#define steal(where, var) lseek(mf, where, 0); read(mf, &var, sizeof var);
/*
 * Read the drive names out of kmem.
 */
#ifdef vax
read_names()
{
	struct mba_device mdev;
	register struct mba_device *mp;
	struct mba_driver mdrv;
	short two_char;
	char *cp = (char *) &two_char;
	struct uba_device udev, *up;
	struct uba_driver udrv;

	mp = (struct mba_device *) nl[X_MBDINIT].n_value;
	up = (struct uba_device *) nl[X_UBDINIT].n_value;
	if (up == 0) {
		fprintf(stderr, "vmstat: Disk init info not in namelist\n");
		exit(1);
	}
	if (mp) for (;;) {
		steal(mp++, mdev);
		if (mdev.mi_driver == 0)
			break;
		if (mdev.mi_dk < 0 || mdev.mi_alive == 0)
			continue;
		steal(mdev.mi_driver, mdrv);
		steal(mdrv.md_dname, two_char);
		sprintf(dr_name[mdev.mi_dk], "%c%c", cp[0], cp[1]);
		dr_unit[mdev.mi_dk] = mdev.mi_unit;
	}
	for (;;) {
		steal(up++, udev);
		if (udev.ui_driver == 0)
			break;
		if (udev.ui_dk < 0 || udev.ui_alive == 0)
			continue;
		steal(udev.ui_driver, udrv);
		steal(udrv.ud_dname, two_char);
		sprintf(dr_name[udev.ui_dk], "%c%c", cp[0], cp[1]);
		dr_unit[udev.ui_dk] = udev.ui_unit;
	}
}
#endif

#ifdef sun
read_names()
{
	struct mb_device mdev;
	register struct mb_device *mp;
	struct mb_driver mdrv;
	short two_char;
	char *cp = (char *) &two_char;

	mp = (struct mb_device *) nl[X_MBDINIT].n_value;
	if (mp == 0) {
		fprintf(stderr, "iostat: Disk init info not in namelist\n");
		exit(1);
	}
	for (;;) {
		steal(mp++, mdev);
		if (mdev.md_driver == 0)
			break;
		if (mdev.md_dk < 0 || mdev.md_alive == 0)
			continue;
		steal(mdev.md_driver, mdrv);
		steal(mdrv.mdr_dname, two_char);
		sprintf(dr_name[mdev.md_dk], "%c%c%d", cp[0], cp[1]);
		dr_unit[mdev.md_dk] = mdev.md_unit;
	}
}
#endif
Commit	Line	Data
338c4a5d SL	1	#ifndef lint
	2	static char *sccsid = "@(#)vmstat.c 4.9 (Berkeley) %G%";
	3	#endif
	4
7f02df2f BJ	5	#include <stdio.h>
	6	#include <sys/param.h>
	7	#include <sys/vm.h>
	8	#include <sys/dk.h>
	9	#include <nlist.h>
61d7d2b3	10	#include <sys/buf.h>
338c4a5d	11	#ifdef vax
a43be079 SL	12	#include <vaxuba/ubavar.h>
a43be079 SL	13	#include <vaxmba/mbavar.h>
338c4a5d SL	14	#endif
	15	#ifdef sun
	16	#include <sundev/mbvar.h>
	17	#endif
7f02df2f BJ	18
7f02df2f BJ	19	struct nlist nl[] = {
682f1dcb BJ	20	#define X_CPTIME 0
	21	{ "_cp_time" },
	22	#define X_RATE 1
7f02df2f	23	{ "_rate" },
682f1dcb	24	#define X_TOTAL 2
7f02df2f	25	{ "_total" },
682f1dcb	26	#define X_DEFICIT 3
7f02df2f	27	{ "_deficit" },
682f1dcb	28	#define X_FORKSTAT 4
7f02df2f	29	{ "_forkstat" },
682f1dcb	30	#define X_SUM 5
7f02df2f	31	{ "_sum" },
682f1dcb	32	#define X_FIRSTFREE 6
7f02df2f	33	{ "_firstfree" },
682f1dcb	34	#define X_MAXFREE 7
7f02df2f	35	{ "_maxfree" },
a43be079 SL	36	#define X_BOOTTIME 8
a43be079 SL	37	{ "_boottime" },
682f1dcb BJ	38	#define X_DKXFER 9
682f1dcb BJ	39	{ "_dk_xfer" },
338c4a5d	40	#define X_REC 10
7f02df2f	41	{ "_rectime" },
338c4a5d	42	#define X_PGIN 11
7f02df2f	43	{ "_pgintime" },
338c4a5d	44	#define X_HZ 12
61d7d2b3	45	{ "_hz" },
338c4a5d SL	46	#ifdef vax
	47	#define X_MBDINIT 13
	48	{ "_mbdinit" },
	49	#define X_UBDINIT 14
	50	{ "_ubdinit" },
	51	#endif
	52	#ifdef sun
	53	#define X_MBDINIT 13
	54	{ "_mbdinit" },
	55	#endif
	56	{ "" },
7f02df2f BJ	57	};
7f02df2f BJ	58
61d7d2b3 MT	59	char dr_name[DK_NDRIVE][10];
61d7d2b3 MT	60	char dr_unit[DK_NDRIVE];
7f02df2f BJ	61	double stat1();
7f02df2f BJ	62	int firstfree, maxfree;
61d7d2b3	63	int hz;
7f02df2f BJ	64	struct
	65	{
	66	int busy;
682f1dcb BJ	67	long time[CPUSTATES];
682f1dcb BJ	68	long xfer[DK_NDRIVE];
7f02df2f BJ	69	struct vmmeter Rate;
	70	struct vmtotal Total;
	71	struct vmmeter Sum;
	72	struct forkstat Forkstat;
7f02df2f BJ	73	unsigned rectime;
7f02df2f BJ	74	unsigned pgintime;
7f02df2f BJ	75	} s, s1, z;
	76	#define rate s.Rate
	77	#define total s.Total
	78	#define sum s.Sum
	79	#define forkstat s.Forkstat
	80
338c4a5d	81	struct vmmeter osum;
7f02df2f BJ	82	int zero;
	83	int deficit;
	84	double etime;
	85	int mf;
338c4a5d	86	int swflag;
7f02df2f BJ	87
7f02df2f BJ	88	main(argc, argv)
338c4a5d SL	89	int argc;
338c4a5d SL	90	char **argv;
7f02df2f BJ	91	{
	92	time_t now;
	93	int lines;
	94	extern char *ctime();
	95	register i,j;
	96	int iter, nintv;
a43be079	97	time_t boottime;
7f02df2f BJ	98	double f1, f2;
	99	long t;
	100	extern char _sobuf[];
	101
338c4a5d SL	102	#ifdef sun
	103	swflag = 1;
	104	#endif
7f02df2f BJ	105	setbuf(stdout, _sobuf);
	106	nlist("/vmunix", nl);
	107	if(nl[0].n_type == 0) {
	108	printf("no /vmunix namelist\n");
	109	exit(1);
	110	}
	111	mf = open("/dev/kmem", 0);
	112	if(mf < 0) {
	113	printf("cannot open /dev/kmem\n");
	114	exit(1);
	115	}
	116	iter = 0;
	117	argc--, argv++;
	118	while (argc>0 && argv[0][0]=='-') {
	119	char cp = argv++;
	120	argc--;
	121	while (++cp) switch (cp) {
	122
338c4a5d SL	123	case 'S':
	124	swflag = 1 - swflag;
	125	break;
	126
	127
7f02df2f BJ	128	case 't':
	129	dotimes();
	130	exit(0);
338c4a5d	131
7f02df2f BJ	132	case 'z':
	133	close(mf);
	134	mf = open("/dev/kmem", 2);
	135	lseek(mf, (long)nl[X_SUM].n_value, 0);
	136	write(mf, &z.Sum, sizeof z.Sum);
	137	exit(0);
	138
	139	case 'f':
	140	doforkst();
	141	exit(0);
	142
	143	case 's':
	144	dosum();
	145	exit(0);
	146
7f02df2f BJ	147	default:
	148	fprintf(stderr, "usage: vmstat [ -fs ] [ interval ] [ count]\n");
	149	exit(1);
	150	}
	151	}
	152	if(argc > 1)
	153	iter = atoi(argv[1]);
	154	lseek(mf, (long)nl[X_FIRSTFREE].n_value, 0);
	155	read(mf, &firstfree, sizeof firstfree);
	156	lseek(mf, (long)nl[X_MAXFREE].n_value, 0);
	157	read(mf, &maxfree, sizeof maxfree);
a43be079 SL	158	lseek(mf, (long)nl[X_BOOTTIME].n_value, 0);
a43be079 SL	159	read(mf, &boottime, sizeof boottime);
61d7d2b3 MT	160	lseek(mf, (long)nl[X_HZ].n_value, 0);
61d7d2b3 MT	161	read(mf, &hz, sizeof hz);
513dfff1	162	for (i = 0; i < DK_NDRIVE; i++) {
4a072e2d	163	strcpy(dr_name[i], "xx");
61d7d2b3 MT	164	dr_unit[i] = i;
	165	}
	166	read_names();
7f02df2f	167	time(&now);
a43be079	168	nintv = now - boottime;
7f02df2f BJ	169	if (nintv <= 0 \|\| nintv > 60602436510) {
	170	printf("Time makes no sense... namelist must be wrong.\n");
	171	exit(1);
	172	}
	173	reprint:
	174	lines = 20;
	175	/* s1 = z; */
7f02df2f	176	printf("\
513dfff1	177	procs memory page disk faults cpu\n\
338c4a5d SL	178	r b w avm fre %5s pi po fr de sr %c%d %c%d %c%d %c%d in sy cs us sy id\n\
	179	", swflag ? "si so" : "re at",
	180	dr_name[0][0], dr_unit[0], dr_name[1][0], dr_unit[1], dr_name[2][0], dr_unit[2], dr_name[3][0], dr_unit[3]);
7f02df2f	181	loop:
682f1dcb BJ	182	lseek(mf, (long)nl[X_CPTIME].n_value, 0);
	183	read(mf, s.time, sizeof s.time);
	184	lseek(mf, (long)nl[X_DKXFER].n_value, 0);
	185	read(mf, s.xfer, sizeof s.xfer);
7f02df2f BJ	186	if (nintv != 1) {
	187	lseek(mf, (long)nl[X_SUM].n_value, 0);
	188	read(mf, &rate, sizeof rate);
	189	} else {
	190	lseek(mf, (long)nl[X_RATE].n_value, 0);
	191	read(mf, &rate, sizeof rate);
	192	}
	193	lseek(mf, (long)nl[X_TOTAL].n_value, 0);
	194	read(mf, &total, sizeof total);
338c4a5d SL	195	osum = sum;
	196	lseek(mf, (long)nl[X_SUM].n_value, 0);
	197	read(mf, &sum, sizeof sum);
7f02df2f BJ	198	lseek(mf, (long)nl[X_DEFICIT].n_value, 0);
7f02df2f BJ	199	read(mf, &deficit, sizeof deficit);
682f1dcb	200	etime = 0;
7f02df2f	201	for (i=0; i < DK_NDRIVE; i++) {
682f1dcb BJ	202	t = s.xfer[i];
	203	s.xfer[i] -= s1.xfer[i];
	204	s1.xfer[i] = t;
7f02df2f BJ	205	}
7f02df2f BJ	206	for (i=0; i < CPUSTATES; i++) {
682f1dcb BJ	207	t = s.time[i];
	208	s.time[i] -= s1.time[i];
	209	s1.time[i] = t;
	210	etime += s.time[i];
7f02df2f	211	}
7f02df2f BJ	212	if(etime == 0.)
7f02df2f BJ	213	etime = 1.;
61d7d2b3	214	printf("%2d%2d%2d", total.t_rq, total.t_dw+total.t_pw, total.t_sw);
338c4a5d SL	215	#define pgtok(a) ((a)*NBPG/1024)
	216	printf("%6d%5d", pgtok(total.t_avm), pgtok(total.t_free));
	217	printf("%4d%3d",
	218	swflag ?
	219	sum.v_swpin-osum.v_swpin :
	220	(rate.v_pgrec - (rate.v_xsfrec+rate.v_xifrec))/nintv,
	221	swflag ?
	222	sum.v_swpout-osum.v_swpout :
	223	(rate.v_xsfrec+rate.v_xifrec)/nintv);
	224	printf("%4d", pgtok(rate.v_pgpgin)/nintv);
	225	printf("%4d%4d%4d%4d", pgtok(rate.v_pgpgout)/nintv,
	226	pgtok(rate.v_dfree)/nintv, pgtok(deficit), rate.v_scan/nintv);
7f02df2f	227	etime /= 60.;
7f02df2f BJ	228	for(i=0; i<4; i++)
7f02df2f BJ	229	stats(i);
338c4a5d SL	230	#ifdef sun
	231	printf("%4d%4d", (rate.v_intr/nintv), rate.v_syscall/nintv);
	232	#endif
	233	#ifdef vax
61d7d2b3	234	printf("%4d%4d", (rate.v_intr/nintv) - hz, rate.v_syscall/nintv);
338c4a5d	235	#endif
7f02df2f BJ	236	printf("%4d", rate.v_swtch/nintv);
	237	for(i=0; i<CPUSTATES; i++) {
	238	float f = stat1(i);
	239	if (i == 0) { /* US+NI */
	240	i++;
	241	f += stat1(i);
	242	}
	243	printf("%3.0f", f);
	244	}
	245	printf("\n");
	246	fflush(stdout);
	247	contin:
	248	nintv = 1;
	249	--iter;
	250	if(iter)
	251	if(argc > 0) {
	252	sleep(atoi(argv[0]));
	253	if (--lines <= 0)
	254	goto reprint;
	255	goto loop;
	256	}
	257	}
	258
7f02df2f BJ	259	dotimes()
	260	{
	261
	262	lseek(mf, (long)nl[X_REC].n_value, 0);
	263	read(mf, &s.rectime, sizeof s.rectime);
	264	lseek(mf, (long)nl[X_PGIN].n_value, 0);
	265	read(mf, &s.pgintime, sizeof s.pgintime);
	266	lseek(mf, (long)nl[X_SUM].n_value, 0);
	267	read(mf, &sum, sizeof sum);
	268	printf("%d reclaims, %d total time (usec)\n", sum.v_pgrec, s.rectime);
	269	printf("average: %d usec / reclaim\n", s.rectime/sum.v_pgrec);
	270	printf("\n");
	271	printf("%d page ins, %d total time (msec)\n",sum.v_pgin, s.pgintime/10);
	272	printf("average: %8.1f msec / page in\n", s.pgintime/(sum.v_pgin*10.0));
	273	}
7f02df2f BJ	274
	275	dosum()
	276	{
	277
	278	lseek(mf, (long)nl[X_SUM].n_value, 0);
	279	read(mf, &sum, sizeof sum);
	280	printf("%9d swap ins\n", sum.v_swpin);
	281	printf("%9d swap outs\n", sum.v_swpout);
	282	printf("%9d pages swapped in\n", sum.v_pswpin / CLSIZE);
	283	printf("%9d pages swapped out\n", sum.v_pswpout / CLSIZE);
	284	printf("%9d total address trans. faults taken\n", sum.v_faults);
	285	printf("%9d page ins\n", sum.v_pgin);
	286	printf("%9d page outs\n", sum.v_pgout);
513dfff1 BJ	287	printf("%9d pages paged in\n", sum.v_pgpgin);
	288	printf("%9d pages paged out\n", sum.v_pgpgout);
	289	printf("%9d sequential process pages freed\n", sum.v_seqfree);
7f02df2f BJ	290	printf("%9d total reclaims\n", sum.v_pgrec);
	291	printf("%9d reclaims from free list\n", sum.v_pgfrec);
	292	printf("%9d intransit blocking page faults\n", sum.v_intrans);
	293	printf("%9d zero fill pages created\n", sum.v_nzfod / CLSIZE);
	294	printf("%9d zero fill page faults\n", sum.v_zfod / CLSIZE);
	295	printf("%9d executable fill pages created\n", sum.v_nexfod / CLSIZE);
	296	printf("%9d executable fill page faults\n", sum.v_exfod / CLSIZE);
	297	printf("%9d swap text pages found in free list\n", sum.v_xsfrec);
	298	printf("%9d inode text pages found in free list\n", sum.v_xifrec);
	299	printf("%9d file fill pages created\n", sum.v_nvrfod / CLSIZE);
	300	printf("%9d file fill page faults\n", sum.v_vrfod / CLSIZE);
	301	printf("%9d pages examined by the clock daemon\n", sum.v_scan);
	302	printf("%9d revolutions of the clock hand\n", sum.v_rev);
	303	printf("%9d pages freed by the clock daemon\n", sum.v_dfree / CLSIZE);
	304	printf("%9d cpu context switches\n", sum.v_swtch);
	305	printf("%9d device interrupts\n", sum.v_intr);
	306	printf("%9d pseduo-dma dz interrupts\n", sum.v_pdma);
	307	printf("%9d traps\n", sum.v_trap);
	308	printf("%9d system calls\n", sum.v_syscall);
	309	}
	310
7f02df2f BJ	311	doforkst()
	312	{
	313
	314	lseek(mf, (long)nl[X_FORKSTAT].n_value, 0);
	315	read(mf, &forkstat, sizeof forkstat);
	316	printf("%d forks, %d pages, average=%.2f\n",
	317	forkstat.cntfork, forkstat.sizfork,
	318	(float) forkstat.sizfork / forkstat.cntfork);
	319	printf("%d vforks, %d pages, average=%.2f\n",
	320	forkstat.cntvfork, forkstat.sizvfork,
	321	(float)forkstat.sizvfork / forkstat.cntvfork);
	322	}
	323
	324	stats(dn)
	325	{
	326
	327	if (dn >= DK_NDRIVE) {
	328	printf(" 0");
	329	return;
	330	}
682f1dcb	331	printf("%3.0f", s.xfer[dn]/etime);
7f02df2f BJ	332	}
	333
	334	double
	335	stat1(row)
	336	{
682f1dcb BJ	337	double t;
682f1dcb BJ	338	register i;
7f02df2f BJ	339
	340	t = 0;
	341	for(i=0; i<CPUSTATES; i++)
682f1dcb BJ	342	t += s.time[i];
	343	if(t == 0.)
	344	t = 1.;
	345	return(s.time[row]*100./t);
7f02df2f BJ	346	}
	347
	348	pct(top, bot)
	349	{
	350
	351	if (bot == 0)
	352	return (0);
	353	return ((top * 100) / bot);
	354	}
61d7d2b3	355
338c4a5d	356	#define steal(where, var) lseek(mf, where, 0); read(mf, &var, sizeof var);
61d7d2b3 MT	357	/*
61d7d2b3 MT	358	* Read the drive names out of kmem.
61d7d2b3	359	*/
338c4a5d	360	#ifdef vax
61d7d2b3 MT	361	read_names()
	362	{
	363	struct mba_device mdev;
	364	register struct mba_device *mp;
	365	struct mba_driver mdrv;
	366	short two_char;
	367	char cp = (char ) &two_char;
	368	struct uba_device udev, *up;
	369	struct uba_driver udrv;
	370
	371	mp = (struct mba_device *) nl[X_MBDINIT].n_value;
	372	up = (struct uba_device *) nl[X_UBDINIT].n_value;
93ca0bfe	373	if (up == 0) {
338c4a5d	374	fprintf(stderr, "vmstat: Disk init info not in namelist\n");
61d7d2b3 MT	375	exit(1);
61d7d2b3 MT	376	}
93ca0bfe	377	if (mp) for (;;) {
61d7d2b3 MT	378	steal(mp++, mdev);
	379	if (mdev.mi_driver == 0)
	380	break;
	381	if (mdev.mi_dk < 0 \|\| mdev.mi_alive == 0)
	382	continue;
	383	steal(mdev.mi_driver, mdrv);
	384	steal(mdrv.md_dname, two_char);
	385	sprintf(dr_name[mdev.mi_dk], "%c%c", cp[0], cp[1]);
	386	dr_unit[mdev.mi_dk] = mdev.mi_unit;
	387	}
93ca0bfe	388	for (;;) {
61d7d2b3 MT	389	steal(up++, udev);
	390	if (udev.ui_driver == 0)
	391	break;
	392	if (udev.ui_dk < 0 \|\| udev.ui_alive == 0)
	393	continue;
	394	steal(udev.ui_driver, udrv);
	395	steal(udrv.ud_dname, two_char);
	396	sprintf(dr_name[udev.ui_dk], "%c%c", cp[0], cp[1]);
	397	dr_unit[udev.ui_dk] = udev.ui_unit;
	398	}
	399	}
338c4a5d SL	400	#endif
	401
	402	#ifdef sun
	403	read_names()
	404	{
	405	struct mb_device mdev;
	406	register struct mb_device *mp;
	407	struct mb_driver mdrv;
	408	short two_char;
	409	char cp = (char ) &two_char;
	410
	411	mp = (struct mb_device *) nl[X_MBDINIT].n_value;
	412	if (mp == 0) {
	413	fprintf(stderr, "iostat: Disk init info not in namelist\n");
	414	exit(1);
	415	}
	416	for (;;) {
	417	steal(mp++, mdev);
	418	if (mdev.md_driver == 0)
	419	break;
	420	if (mdev.md_dk < 0 \|\| mdev.md_alive == 0)
	421	continue;
	422	steal(mdev.md_driver, mdrv);
	423	steal(mdrv.mdr_dname, two_char);
	424	sprintf(dr_name[mdev.md_dk], "%c%c%d", cp[0], cp[1]);
	425	dr_unit[mdev.md_dk] = mdev.md_unit;
	426	}
	427	}
	428	#endif