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freebsd-skq/usr.bin/systat/vmstat.c
Pedro F. Giffuni 8a16b7a18f General further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef lint
static const char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94";
#endif
/*
* Cursed vmstat -- from Robert Elz.
*/
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/uio.h>
#include <sys/namei.h>
#include <sys/resource.h>
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <vm/vm_param.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <langinfo.h>
#include <nlist.h>
#include <paths.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <utmpx.h>
#include <devstat.h>
#include "systat.h"
#include "extern.h"
#include "devs.h"
static struct Info {
long time[CPUSTATES];
uint64_t v_swtch; /* context switches */
uint64_t v_trap; /* calls to trap */
uint64_t v_syscall; /* calls to syscall() */
uint64_t v_intr; /* device interrupts */
uint64_t v_soft; /* software interrupts */
/*
* Virtual memory activity.
*/
uint64_t v_vm_faults; /* number of address memory faults */
uint64_t v_io_faults; /* page faults requiring I/O */
uint64_t v_cow_faults; /* number of copy-on-writes */
uint64_t v_zfod; /* pages zero filled on demand */
uint64_t v_ozfod; /* optimized zero fill pages */
uint64_t v_swapin; /* swap pager pageins */
uint64_t v_swapout; /* swap pager pageouts */
uint64_t v_swappgsin; /* swap pager pages paged in */
uint64_t v_swappgsout; /* swap pager pages paged out */
uint64_t v_vnodein; /* vnode pager pageins */
uint64_t v_vnodeout; /* vnode pager pageouts */
uint64_t v_vnodepgsin; /* vnode_pager pages paged in */
uint64_t v_vnodepgsout; /* vnode pager pages paged out */
uint64_t v_intrans; /* intransit blocking page faults */
uint64_t v_reactivated; /* number of pages reactivated by pagedaemon */
uint64_t v_pdwakeups; /* number of times daemon has awaken from sleep */
uint64_t v_pdpages; /* number of pages analyzed by daemon */
uint64_t v_dfree; /* pages freed by daemon */
uint64_t v_pfree; /* pages freed by exiting processes */
uint64_t v_tfree; /* total pages freed */
/*
* Distribution of page usages.
*/
u_int v_page_size; /* page size in bytes */
u_int v_free_count; /* number of pages free */
u_int v_wire_count; /* number of pages wired down */
u_int v_active_count; /* number of pages active */
u_int v_inactive_count; /* number of pages inactive */
u_int v_laundry_count; /* number of pages in laundry queue */
u_long v_kmem_map_size; /* Current kmem allocation size */
struct vmtotal Total;
struct nchstats nchstats;
long nchcount;
long *intrcnt;
long bufspace;
int desiredvnodes;
long numvnodes;
long freevnodes;
int numdirtybuffers;
} s, s1, s2, z;
static u_long kmem_size;
static u_int v_page_count;
struct statinfo cur, last, run;
#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, struct statinfo *, struct statinfo *);
static void getinfo(struct Info *);
static void putint(int, int, int, int);
static void putfloat(double, int, int, int, int, int);
static void putlongdouble(long double, int, int, int, int, int);
static int ucount(void);
static int ncpu;
static char buf[26];
static time_t t;
static double etime;
static int nintr;
static long *intrloc;
static char **intrname;
static int nextintsrow;
WINDOW *
openkre(void)
{
return (stdscr);
}
void
closekre(WINDOW *w)
{
if (w == NULL)
return;
wclear(w);
wrefresh(w);
}
/*
* These constants define where the major pieces are laid out
*/
#define STATROW 0 /* uses 1 row and 67 cols */
#define STATCOL 0
#define MEMROW 2 /* uses 4 rows and 45 cols */
#define MEMCOL 0
#define PAGEROW 2 /* uses 4 rows and 30 cols */
#define PAGECOL 47
#define INTSROW 6 /* uses all rows to bottom and 16 cols */
#define INTSCOL 64
#define PROCSROW 6 /* uses 3 rows and 19 cols */
#define PROCSCOL 0
#define GENSTATROW 7 /* uses 2 rows and 29 cols */
#define GENSTATCOL 21
#define VMSTATROW 7 /* uses 17 rows and 12-14 cols */
#define VMSTATCOL 49 /* actually 50-51 for some fields */
#define GRAPHROW 10 /* uses 3 rows and 49-51 cols */
#define GRAPHCOL 0
#define VNSTATROW 13 /* uses 4 rows and 13 columns */
#define VNSTATCOL 35
#define NAMEIROW 14 /* uses 3 rows and 32 cols */
#define NAMEICOL 0
#define DISKROW 18 /* uses 5 rows and 47 cols (for 7 drives) */
#define DISKCOL 0
#define DRIVESPACE 7 /* max # for space */
#define MAXDRIVES DRIVESPACE /* max # to display */
int
initkre(void)
{
char *cp, *cp1, *cp2, *intrnamebuf, *nextcp;
int i;
size_t sz;
if ((num_devices = devstat_getnumdevs(NULL)) < 0) {
warnx("%s", devstat_errbuf);
return(0);
}
cur.dinfo = calloc(1, sizeof(struct devinfo));
last.dinfo = calloc(1, sizeof(struct devinfo));
run.dinfo = calloc(1, sizeof(struct devinfo));
if (dsinit(MAXDRIVES, &cur, &last, &run) != 1)
return(0);
if (nintr == 0) {
if (sysctlbyname("hw.intrcnt", NULL, &sz, NULL, 0) == -1) {
error("sysctl(hw.intrcnt...) failed: %s",
strerror(errno));
return (0);
}
nintr = sz / sizeof(u_long);
intrloc = calloc(nintr, sizeof (long));
intrname = calloc(nintr, sizeof (char *));
intrnamebuf = sysctl_dynread("hw.intrnames", NULL);
if (intrnamebuf == NULL || intrname == NULL ||
intrloc == NULL) {
error("Out of memory");
if (intrnamebuf)
free(intrnamebuf);
if (intrname)
free(intrname);
if (intrloc)
free(intrloc);
nintr = 0;
return(0);
}
for (cp = intrnamebuf, i = 0; i < nintr; i++) {
nextcp = cp + strlen(cp) + 1;
/* Discard trailing spaces. */
for (cp1 = nextcp - 1; cp1 > cp && *(cp1 - 1) == ' '; )
*--cp1 = '\0';
/* Convert "irqN: name" to "name irqN". */
if (strncmp(cp, "irq", 3) == 0) {
cp1 = cp + 3;
while (isdigit((u_char)*cp1))
cp1++;
if (cp1 != cp && *cp1 == ':' &&
*(cp1 + 1) == ' ') {
sz = strlen(cp);
*cp1 = '\0';
cp1 = cp1 + 2;
cp2 = strdup(cp);
bcopy(cp1, cp, sz - (cp1 - cp) + 1);
if (sz <= 10 + 4) {
strcat(cp, " ");
strcat(cp, cp2 + 3);
}
free(cp2);
}
}
/*
* Convert "name irqN" to "name N" if the former is
* longer than the field width.
*/
if ((cp1 = strstr(cp, "irq")) != NULL &&
strlen(cp) > 10)
bcopy(cp1 + 3, cp1, strlen(cp1 + 3) + 1);
intrname[i] = cp;
cp = nextcp;
}
nextintsrow = INTSROW + 2;
allocinfo(&s);
allocinfo(&s1);
allocinfo(&s2);
allocinfo(&z);
}
GETSYSCTL("vm.kmem_size", kmem_size);
GETSYSCTL("vm.stats.vm.v_page_count", v_page_count);
getinfo(&s2);
copyinfo(&s2, &s1);
return(1);
}
void
fetchkre(void)
{
time_t now;
struct tm *tp;
static int d_first = -1;
if (d_first < 0)
d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
time(&now);
tp = localtime(&now);
(void) strftime(buf, sizeof(buf),
d_first ? "%e %b %R" : "%b %e %R", tp);
getinfo(&s);
}
void
labelkre(void)
{
int i, j;
clear();
mvprintw(STATROW, STATCOL + 6, "users Load");
mvprintw(STATROW + 1, STATCOL + 3, "Mem usage: %%Phy %%Kmem");
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 + 41, "Free");
mvprintw(PAGEROW, PAGECOL, " VN PAGER SWAP PAGER");
mvprintw(PAGEROW + 1, PAGECOL, " in out in out");
mvprintw(PAGEROW + 2, PAGECOL, "count");
mvprintw(PAGEROW + 3, PAGECOL, "pages");
mvprintw(INTSROW, INTSCOL + 1, "Interrupts");
mvprintw(INTSROW + 1, INTSCOL + 6, "total");
mvprintw(VMSTATROW, VMSTATCOL + 9, "ioflt");
mvprintw(VMSTATROW + 1, VMSTATCOL + 9, "cow");
mvprintw(VMSTATROW + 2, VMSTATCOL + 9, "zfod");
mvprintw(VMSTATROW + 3, VMSTATCOL + 9, "ozfod");
mvprintw(VMSTATROW + 4, VMSTATCOL + 9 - 1, "%%ozfod");
mvprintw(VMSTATROW + 5, VMSTATCOL + 9, "daefr");
mvprintw(VMSTATROW + 6, VMSTATCOL + 9, "prcfr");
mvprintw(VMSTATROW + 7, VMSTATCOL + 9, "totfr");
mvprintw(VMSTATROW + 8, VMSTATCOL + 9, "react");
mvprintw(VMSTATROW + 9, VMSTATCOL + 9, "pdwak");
mvprintw(VMSTATROW + 10, VMSTATCOL + 9, "pdpgs");
mvprintw(VMSTATROW + 11, VMSTATCOL + 9, "intrn");
mvprintw(VMSTATROW + 12, VMSTATCOL + 9, "wire");
mvprintw(VMSTATROW + 13, VMSTATCOL + 9, "act");
mvprintw(VMSTATROW + 14, VMSTATCOL + 9, "inact");
mvprintw(VMSTATROW + 15, VMSTATCOL + 9, "laund");
mvprintw(VMSTATROW + 16, VMSTATCOL + 9, "free");
if (LINES - 1 > VMSTATROW + 17)
mvprintw(VMSTATROW + 17, VMSTATCOL + 9, "buf");
mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt");
mvprintw(GRAPHROW, GRAPHCOL,
" . %%Sys . %%Intr . %%User . %%Nice . %%Idle");
mvprintw(PROCSROW, PROCSCOL, "Proc:");
mvprintw(PROCSROW + 1, PROCSCOL, " r p d s w");
mvprintw(GRAPHROW + 1, GRAPHCOL,
"| | | | | | | | | | |");
mvprintw(VNSTATROW, VNSTATCOL + 8, "dtbuf");
mvprintw(VNSTATROW + 1, VNSTATCOL + 8, "desvn");
mvprintw(VNSTATROW + 2, VNSTATCOL + 8, "numvn");
mvprintw(VNSTATROW + 3, VNSTATCOL + 8, "frevn");
mvprintw(NAMEIROW, NAMEICOL, "Namei Name-cache Dir-cache");
mvprintw(NAMEIROW + 1, NAMEICOL,
" Calls hits %% hits %%");
mvprintw(DISKROW, DISKCOL, "Disks");
mvprintw(DISKROW + 1, DISKCOL, "KB/t");
mvprintw(DISKROW + 2, DISKCOL, "tps");
mvprintw(DISKROW + 3, DISKCOL, "MB/s");
mvprintw(DISKROW + 4, DISKCOL, "%%busy");
/*
* For now, we don't support a fourth disk statistic. So there's
* no point in providing a label for it. If someone can think of a
* fourth useful disk statistic, there is room to add it.
*/
/* mvprintw(DISKROW + 4, DISKCOL, " msps"); */
j = 0;
for (i = 0; i < num_devices && j < MAXDRIVES; i++)
if (dev_select[i].selected) {
char tmpstr[80];
sprintf(tmpstr, "%s%d", dev_select[i].device_name,
dev_select[i].unit_number);
mvprintw(DISKROW, DISKCOL + 5 + 6 * j,
" %5.5s", tmpstr);
j++;
}
for (i = 0; i < nintr; i++) {
if (intrloc[i] == 0)
continue;
mvprintw(intrloc[i], INTSCOL + 6, "%-10.10s", intrname[i]);
}
}
#define X(fld) {t=s.fld[i]; s.fld[i]-=s1.fld[i]; if(state==TIME) s1.fld[i]=t;}
#define Q(fld) {t=cur.fld[i]; cur.fld[i]-=last.fld[i]; if(state==TIME) last.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) \
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_SYS, CP_INTR, CP_USER, CP_NICE,
CP_IDLE };
void
showkre(void)
{
float f1, f2;
int psiz, inttotal;
int i, l, lc;
static int failcnt = 0;
etime = 0;
for(i = 0; i < CPUSTATES; i++) {
X(time);
Q(cp_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;
etime /= ncpu;
inttotal = 0;
for (i = 0; i < nintr; i++) {
if (s.intrcnt[i] == 0)
continue;
X(intrcnt);
l = (int)((float)s.intrcnt[i]/etime + 0.5);
inttotal += l;
if (intrloc[i] == 0) {
if (nextintsrow == LINES)
continue;
intrloc[i] = nextintsrow++;
mvprintw(intrloc[i], INTSCOL + 6, "%-10.10s",
intrname[i]);
}
putint(l, intrloc[i], INTSCOL, 5);
}
putint(inttotal, INTSROW + 1, INTSCOL, 5);
Z(ncs_goodhits); Z(ncs_badhits); Z(ncs_miss);
Z(ncs_long); Z(ncs_pass2); Z(ncs_2passes); Z(ncs_neghits);
s.nchcount = nchtotal.ncs_goodhits + nchtotal.ncs_badhits +
nchtotal.ncs_miss + nchtotal.ncs_long + nchtotal.ncs_neghits;
if (state == TIME)
s1.nchcount = s.nchcount;
psiz = 0;
f2 = 0.0;
for (lc = 0; lc < CPUSTATES; lc++) {
i = cpuorder[lc];
f1 = cputime(i);
f2 += f1;
l = (int) ((f2 + 1.0) / 2.0) - psiz;
putfloat(f1, GRAPHROW, GRAPHCOL + 10 * lc, 4, 1, 0);
move(GRAPHROW + 2, psiz);
psiz += l;
while (l-- > 0)
addch(cpuchar[lc]);
}
putint(ucount(), STATROW, STATCOL, 5);
putfloat(avenrun[0], STATROW, STATCOL + 20, 5, 2, 0);
putfloat(avenrun[1], STATROW, STATCOL + 26, 5, 2, 0);
putfloat(avenrun[2], STATROW, STATCOL + 32, 5, 2, 0);
mvaddstr(STATROW, STATCOL + 55, buf);
#define pgtokb(pg) ((pg) * (s.v_page_size / 1024))
putfloat(100.0 * (v_page_count - total.t_free) / v_page_count,
STATROW + 1, STATCOL + 15, 2, 0, 1);
putfloat(100.0 * s.v_kmem_map_size / kmem_size,
STATROW + 1, STATCOL + 22, 2, 0, 1);
putint(pgtokb(total.t_arm), MEMROW + 2, MEMCOL + 4, 7);
putint(pgtokb(total.t_armshr), MEMROW + 2, MEMCOL + 12, 7);
putint(pgtokb(total.t_avm), MEMROW + 2, MEMCOL + 20, 8);
putint(pgtokb(total.t_avmshr), MEMROW + 2, MEMCOL + 29, 8);
putint(pgtokb(total.t_rm), MEMROW + 3, MEMCOL + 4, 7);
putint(pgtokb(total.t_rmshr), MEMROW + 3, MEMCOL + 12, 7);
putint(pgtokb(total.t_vm), MEMROW + 3, MEMCOL + 20, 8);
putint(pgtokb(total.t_vmshr), MEMROW + 3, MEMCOL + 29, 8);
putint(pgtokb(total.t_free), MEMROW + 2, MEMCOL + 38, 7);
putint(total.t_rq - 1, PROCSROW + 2, PROCSCOL, 3);
putint(total.t_pw, PROCSROW + 2, PROCSCOL + 4, 3);
putint(total.t_dw, PROCSROW + 2, PROCSCOL + 8, 3);
putint(total.t_sl, PROCSROW + 2, PROCSCOL + 12, 3);
putint(total.t_sw, PROCSROW + 2, PROCSCOL + 16, 3);
PUTRATE(v_io_faults, VMSTATROW, VMSTATCOL + 2, 8 - 2);
PUTRATE(v_cow_faults, VMSTATROW + 1, VMSTATCOL + 2, 8 - 2);
PUTRATE(v_zfod, VMSTATROW + 2, VMSTATCOL + 2, 8 - 2);
PUTRATE(v_ozfod, VMSTATROW + 3, VMSTATCOL, 8);
putint(s.v_zfod != 0 ? (int)(s.v_ozfod * 100.0 / s.v_zfod) : 0,
VMSTATROW + 4, VMSTATCOL + 1, 8 - 1);
PUTRATE(v_dfree, VMSTATROW + 5, VMSTATCOL + 2, 8 - 2);
PUTRATE(v_pfree, VMSTATROW + 6, VMSTATCOL + 2, 8 - 2);
PUTRATE(v_tfree, VMSTATROW + 7, VMSTATCOL, 8);
PUTRATE(v_reactivated, VMSTATROW + 8, VMSTATCOL, 8);
PUTRATE(v_pdwakeups, VMSTATROW + 9, VMSTATCOL, 8);
PUTRATE(v_pdpages, VMSTATROW + 10, VMSTATCOL, 8);
PUTRATE(v_intrans, VMSTATROW + 11, VMSTATCOL, 8);
putint(pgtokb(s.v_wire_count), VMSTATROW + 12, VMSTATCOL, 8);
putint(pgtokb(s.v_active_count), VMSTATROW + 13, VMSTATCOL, 8);
putint(pgtokb(s.v_inactive_count), VMSTATROW + 14, VMSTATCOL, 8);
putint(pgtokb(s.v_laundry_count), VMSTATROW + 15, VMSTATCOL, 8);
putint(pgtokb(s.v_free_count), VMSTATROW + 16, VMSTATCOL, 8);
if (LINES - 1 > VMSTATROW + 17)
putint(s.bufspace / 1024, VMSTATROW + 17, VMSTATCOL, 8);
PUTRATE(v_vnodein, PAGEROW + 2, PAGECOL + 6, 5);
PUTRATE(v_vnodeout, PAGEROW + 2, PAGECOL + 12, 5);
PUTRATE(v_swapin, PAGEROW + 2, PAGECOL + 19, 5);
PUTRATE(v_swapout, PAGEROW + 2, PAGECOL + 25, 5);
PUTRATE(v_vnodepgsin, PAGEROW + 3, PAGECOL + 6, 5);
PUTRATE(v_vnodepgsout, PAGEROW + 3, PAGECOL + 12, 5);
PUTRATE(v_swappgsin, PAGEROW + 3, PAGECOL + 19, 5);
PUTRATE(v_swappgsout, PAGEROW + 3, PAGECOL + 25, 5);
PUTRATE(v_swtch, GENSTATROW + 1, GENSTATCOL, 4);
PUTRATE(v_trap, GENSTATROW + 1, GENSTATCOL + 5, 4);
PUTRATE(v_syscall, GENSTATROW + 1, GENSTATCOL + 10, 4);
PUTRATE(v_intr, GENSTATROW + 1, GENSTATCOL + 15, 4);
PUTRATE(v_soft, GENSTATROW + 1, GENSTATCOL + 20, 4);
PUTRATE(v_vm_faults, GENSTATROW + 1, GENSTATCOL + 25, 4);
for (i = 0, lc = 0; i < num_devices && lc < MAXDRIVES; i++)
if (dev_select[i].selected) {
switch(state) {
case TIME:
dinfo(i, ++lc, &cur, &last);
break;
case RUN:
dinfo(i, ++lc, &cur, &run);
break;
case BOOT:
dinfo(i, ++lc, &cur, NULL);
break;
}
}
putint(s.numdirtybuffers, VNSTATROW, VNSTATCOL, 7);
putint(s.desiredvnodes, VNSTATROW + 1, VNSTATCOL, 7);
putint(s.numvnodes, VNSTATROW + 2, VNSTATCOL, 7);
putint(s.freevnodes, VNSTATROW + 3, VNSTATCOL, 7);
putint(s.nchcount, NAMEIROW + 2, NAMEICOL, 8);
putint((nchtotal.ncs_goodhits + nchtotal.ncs_neghits),
NAMEIROW + 2, NAMEICOL + 9, 7);
#define nz(x) ((x) ? (x) : 1)
putfloat((nchtotal.ncs_goodhits+nchtotal.ncs_neghits) *
100.0 / nz(s.nchcount),
NAMEIROW + 2, NAMEICOL + 17, 3, 0, 1);
putint(nchtotal.ncs_pass2, NAMEIROW + 2, NAMEICOL + 21, 7);
putfloat(nchtotal.ncs_pass2 * 100.0 / nz(s.nchcount),
NAMEIROW + 2, NAMEICOL + 29, 3, 0, 1);
#undef nz
}
int
cmdkre(const char *cmd, const char *args)
{
int retval;
if (prefix(cmd, "run")) {
retval = 1;
copyinfo(&s2, &s1);
switch (devstat_getdevs(NULL, &run)) {
case -1:
errx(1, "%s", devstat_errbuf);
break;
case 1:
num_devices = run.dinfo->numdevs;
generation = run.dinfo->generation;
retval = dscmd("refresh", NULL, MAXDRIVES, &cur);
if (retval == 2)
labelkre();
break;
default:
break;
}
state = RUN;
return (retval);
}
if (prefix(cmd, "boot")) {
state = BOOT;
copyinfo(&z, &s1);
return (1);
}
if (prefix(cmd, "time")) {
state = TIME;
return (1);
}
if (prefix(cmd, "zero")) {
retval = 1;
if (state == RUN) {
getinfo(&s1);
switch (devstat_getdevs(NULL, &run)) {
case -1:
errx(1, "%s", devstat_errbuf);
break;
case 1:
num_devices = run.dinfo->numdevs;
generation = run.dinfo->generation;
retval = dscmd("refresh",NULL, MAXDRIVES, &cur);
if (retval == 2)
labelkre();
break;
default:
break;
}
}
return (retval);
}
retval = dscmd(cmd, args, MAXDRIVES, &cur);
if (retval == 2)
labelkre();
return(retval);
}
/* calculate number of users on the system */
static int
ucount(void)
{
int nusers = 0;
struct utmpx *ut;
setutxent();
while ((ut = getutxent()) != NULL)
if (ut->ut_type == USER_PROCESS)
nusers++;
endutxent();
return (nusers);
}
static float
cputime(int indx)
{
double lt;
int i;
lt = 0;
for (i = 0; i < CPUSTATES; i++)
lt += s.time[i];
if (lt == 0.0)
lt = 1.0;
return (s.time[indx] * 100.0 / lt);
}
static void
putint(int n, int l, int lc, int w)
{
int snr;
char b[128];
move(l, lc);
#ifdef DEBUG
while (w-- > 0)
addch('*');
return;
#endif
if (n == 0) {
while (w-- > 0)
addch(' ');
return;
}
snr = snprintf(b, sizeof(b), "%*d", w, n);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*dk", w - 1, n / 1000);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*dM", w - 1, n / 1000000);
if (snr != w) {
while (w-- > 0)
addch('*');
return;
}
addstr(b);
}
static void
putfloat(double f, int l, int lc, int w, int d, int nz)
{
int snr;
char b[128];
move(l, lc);
#ifdef DEBUG
while (--w >= 0)
addch('*');
return;
#endif
if (nz && f == 0.0) {
while (--w >= 0)
addch(' ');
return;
}
snr = snprintf(b, sizeof(b), "%*.*f", w, d, f);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*.0f", w, f);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*.0fk", w - 1, f / 1000);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*.0fM", w - 1, f / 1000000);
if (snr != w) {
while (--w >= 0)
addch('*');
return;
}
addstr(b);
}
static void
putlongdouble(long double f, int l, int lc, int w, int d, int nz)
{
int snr;
char b[128];
move(l, lc);
#ifdef DEBUG
while (--w >= 0)
addch('*');
return;
#endif
if (nz && f == 0.0) {
while (--w >= 0)
addch(' ');
return;
}
snr = snprintf(b, sizeof(b), "%*.*Lf", w, d, f);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*.0Lf", w, f);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*.0Lfk", w - 1, f / 1000);
if (snr != w)
snr = snprintf(b, sizeof(b), "%*.0LfM", w - 1, f / 1000000);
if (snr != w) {
while (--w >= 0)
addch('*');
return;
}
addstr(b);
}
static void
getinfo(struct Info *ls)
{
struct devinfo *tmp_dinfo;
size_t size;
int mib[2];
GETSYSCTL("kern.cp_time", ls->time);
GETSYSCTL("kern.cp_time", cur.cp_time);
GETSYSCTL("vm.stats.sys.v_swtch", ls->v_swtch);
GETSYSCTL("vm.stats.sys.v_trap", ls->v_trap);
GETSYSCTL("vm.stats.sys.v_syscall", ls->v_syscall);
GETSYSCTL("vm.stats.sys.v_intr", ls->v_intr);
GETSYSCTL("vm.stats.sys.v_soft", ls->v_soft);
GETSYSCTL("vm.stats.vm.v_vm_faults", ls->v_vm_faults);
GETSYSCTL("vm.stats.vm.v_io_faults", ls->v_io_faults);
GETSYSCTL("vm.stats.vm.v_cow_faults", ls->v_cow_faults);
GETSYSCTL("vm.stats.vm.v_zfod", ls->v_zfod);
GETSYSCTL("vm.stats.vm.v_ozfod", ls->v_ozfod);
GETSYSCTL("vm.stats.vm.v_swapin", ls->v_swapin);
GETSYSCTL("vm.stats.vm.v_swapout", ls->v_swapout);
GETSYSCTL("vm.stats.vm.v_swappgsin", ls->v_swappgsin);
GETSYSCTL("vm.stats.vm.v_swappgsout", ls->v_swappgsout);
GETSYSCTL("vm.stats.vm.v_vnodein", ls->v_vnodein);
GETSYSCTL("vm.stats.vm.v_vnodeout", ls->v_vnodeout);
GETSYSCTL("vm.stats.vm.v_vnodepgsin", ls->v_vnodepgsin);
GETSYSCTL("vm.stats.vm.v_vnodepgsout", ls->v_vnodepgsout);
GETSYSCTL("vm.stats.vm.v_intrans", ls->v_intrans);
GETSYSCTL("vm.stats.vm.v_reactivated", ls->v_reactivated);
GETSYSCTL("vm.stats.vm.v_pdwakeups", ls->v_pdwakeups);
GETSYSCTL("vm.stats.vm.v_pdpages", ls->v_pdpages);
GETSYSCTL("vm.stats.vm.v_dfree", ls->v_dfree);
GETSYSCTL("vm.stats.vm.v_pfree", ls->v_pfree);
GETSYSCTL("vm.stats.vm.v_tfree", ls->v_tfree);
GETSYSCTL("vm.stats.vm.v_page_size", ls->v_page_size);
GETSYSCTL("vm.stats.vm.v_free_count", ls->v_free_count);
GETSYSCTL("vm.stats.vm.v_wire_count", ls->v_wire_count);
GETSYSCTL("vm.stats.vm.v_active_count", ls->v_active_count);
GETSYSCTL("vm.stats.vm.v_inactive_count", ls->v_inactive_count);
GETSYSCTL("vm.stats.vm.v_laundry_count", ls->v_laundry_count);
GETSYSCTL("vfs.bufspace", ls->bufspace);
GETSYSCTL("kern.maxvnodes", ls->desiredvnodes);
GETSYSCTL("vfs.numvnodes", ls->numvnodes);
GETSYSCTL("vfs.freevnodes", ls->freevnodes);
GETSYSCTL("vfs.cache.nchstats", ls->nchstats);
GETSYSCTL("vfs.numdirtybuffers", ls->numdirtybuffers);
GETSYSCTL("vm.kmem_map_size", ls->v_kmem_map_size);
getsysctl("hw.intrcnt", ls->intrcnt, nintr * sizeof(u_long));
size = sizeof(ls->Total);
mib[0] = CTL_VM;
mib[1] = VM_TOTAL;
if (sysctl(mib, 2, &ls->Total, &size, NULL, 0) < 0) {
error("Can't get kernel info: %s\n", strerror(errno));
bzero(&ls->Total, sizeof(ls->Total));
}
size = sizeof(ncpu);
if (sysctlbyname("hw.ncpu", &ncpu, &size, NULL, 0) < 0 ||
size != sizeof(ncpu))
ncpu = 1;
tmp_dinfo = last.dinfo;
last.dinfo = cur.dinfo;
cur.dinfo = tmp_dinfo;
last.snap_time = cur.snap_time;
switch (devstat_getdevs(NULL, &cur)) {
case -1:
errx(1, "%s", devstat_errbuf);
break;
case 1:
num_devices = cur.dinfo->numdevs;
generation = cur.dinfo->generation;
cmdkre("refresh", NULL);
break;
default:
break;
}
}
static void
allocinfo(struct Info *ls)
{
ls->intrcnt = (long *) calloc(nintr, sizeof(long));
if (ls->intrcnt == NULL)
errx(2, "out of memory");
}
static void
copyinfo(struct Info *from, struct Info *to)
{
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.
*/
intrcnt = to->intrcnt;
*to = *from;
bcopy(from->intrcnt, to->intrcnt = intrcnt, nintr * sizeof (int));
}
static void
dinfo(int dn, int lc, struct statinfo *now, struct statinfo *then)
{
long double transfers_per_second;
long double kb_per_transfer, mb_per_second;
long double elapsed_time, device_busy;
int di;
di = dev_select[dn].position;
if (then != NULL) {
/* Calculate relative to previous sample */
elapsed_time = now->snap_time - then->snap_time;
} else {
/* Calculate relative to device creation */
elapsed_time = now->snap_time - devstat_compute_etime(
&now->dinfo->devices[di].creation_time, NULL);
}
if (devstat_compute_statistics(&now->dinfo->devices[di], then ?
&then->dinfo->devices[di] : NULL, elapsed_time,
DSM_KB_PER_TRANSFER, &kb_per_transfer,
DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
DSM_MB_PER_SECOND, &mb_per_second,
DSM_BUSY_PCT, &device_busy,
DSM_NONE) != 0)
errx(1, "%s", devstat_errbuf);
lc = DISKCOL + lc * 6;
putlongdouble(kb_per_transfer, DISKROW + 1, lc, 5, 2, 0);
putlongdouble(transfers_per_second, DISKROW + 2, lc, 5, 0, 0);
putlongdouble(mb_per_second, DISKROW + 3, lc, 5, 2, 0);
putlongdouble(device_busy, DISKROW + 4, lc, 5, 0, 0);
}
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