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VM statistics.  zfod is moved and %slo-z ( percentage of zero-fills that
    were slow, i.e. not pre-zero'd ), and number of pages freed per second.
This commit is contained in:
Matthew Dillon 1999-02-08 02:11:52 +00:00
parent f4f79fc1c9
commit 8b4c04d3f3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=43756
2 changed files with 39 additions and 5 deletions
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1
usr.bin/systat/systat.1
View File

@ -333,6 +333,7 @@ Below the paging statistics is a column of lines regarding the virtual
memory system which list the average number of
pages copied on write (`cow'),
pages zero filled on demand (`zfod'),
slow (on-the-fly) zero fills percentage (`%slo-z'),
pages wired down (`wire'),
active pages (`act'),
inactive pages (`inact'),

43
usr.bin/systat/vmstat.c
View File

@ -36,7 +36,7 @@
static char sccsid[] = "@(#)vmstat.c 8.2 (Berkeley) 1/12/94";
#endif
static const char rcsid[] =
"$Id: vmstat.c,v 1.29 1998/10/08 09:56:10 obrien Exp $";
"$Id: vmstat.c,v 1.32 1999/01/09 06:03:54 obrien Exp $";
#endif /* not lint */
/*
@ -113,6 +113,7 @@ static int nintr;
static long *intrloc;
static char **intrname;
static int nextintsrow;
static int extended_vm_stats;
struct utmp utmp;
@ -296,8 +297,7 @@ labelkre()
mvprintw(INTSROW, INTSCOL + 3, " Interrupts");
mvprintw(INTSROW + 1, INTSCOL + 9, "total");
mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "cow");
mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "zfod");
mvprintw(VMSTATROW + 1, VMSTATCOL + 10, "cow");
mvprintw(VMSTATROW + 2, VMSTATCOL + 10, "wire");
mvprintw(VMSTATROW + 3, VMSTATCOL + 10, "act");
mvprintw(VMSTATROW + 4, VMSTATCOL + 10, "inact");
@ -346,6 +346,20 @@ labelkre()
" %5.5s", tmpstr);
j++;
}
if (j <= 4) {
/*
* room for extended VM stats
*/
mvprintw(VMSTATROW + 11, VMSTATCOL - 6, "zfod");
mvprintw(VMSTATROW + 12, VMSTATCOL - 6, "%%slo-z");
mvprintw(VMSTATROW + 13, VMSTATCOL - 6, "tfree");
extended_vm_stats = 1;
} else {
extended_vm_stats = 0;
mvprintw(VMSTATROW + 0, VMSTATCOL + 10, "zfod");
}
for (i = 0; i < nintr; i++) {
if (intrloc[i] == 0)
continue;
@ -457,8 +471,10 @@ showkre()
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_zfod, VMSTATROW + 1, VMSTATCOL + 4, 5);
if (extended_vm_stats == 0) {
PUTRATE(Cnt.v_zfod, VMSTATROW + 0, VMSTATCOL + 4, 5);
}
PUTRATE(Cnt.v_cow_faults, VMSTATROW + 1, VMSTATCOL + 3, 6);
putint(pgtokb(cnt.v_wire_count), VMSTATROW + 2, VMSTATCOL, 9);
putint(pgtokb(cnt.v_active_count), VMSTATROW + 3, VMSTATCOL, 9);
putint(pgtokb(cnt.v_inactive_count), VMSTATROW + 4, VMSTATCOL, 9);
@ -470,6 +486,23 @@ showkre()
PUTRATE(Cnt.v_pdwakeups, VMSTATROW + 10, VMSTATCOL, 9);
PUTRATE(Cnt.v_pdpages, VMSTATROW + 11, VMSTATCOL, 9);
PUTRATE(Cnt.v_intrans, VMSTATROW + 12, VMSTATCOL, 9);
if (extended_vm_stats) {
Y(Cnt.v_ozfod);
PUTRATE(Cnt.v_zfod, VMSTATROW + 11, VMSTATCOL - 16, 9);
putint(
((s.Cnt.v_ozfod < s.Cnt.v_zfod) ?
s.Cnt.v_ozfod * 100 / s.Cnt.v_zfod :
0
),
VMSTATROW + 12,
VMSTATCOL - 16,
9
);
PUTRATE(Cnt.v_tfree, VMSTATROW + 13, VMSTATCOL - 16, 9);
}
putint(s.bufspace/1024, VMSTATROW + 13, VMSTATCOL, 9);
putint(s.desiredvnodes, VMSTATROW + 14, VMSTATCOL, 9);
putint(s.numvnodes, VMSTATROW + 15, VMSTATCOL, 9);