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Abbreviate long field descriptors at write time so that they don't get

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clobbered at runtime:
    dirtybuf -> dtbuf
    desiredvnodes -> desvn
    numvnodes -> numvn
    freevnodes -> frevn
The vmstats column has only 5 characters available for descriptors, but up
to 13 were used.  The extras get clobbered at runtime by interrupt values
and/or descriptors on systems with more than 12 interrupt sources.
    %slo-z -> %sloz
This one is in the "extended" vmstats area and doesn't get clobbered now.

Removed stale documentation of desvn.

Changed a descriptor:
    tfree -> totfr
so that it is consistent with the abbreviations for other free counts
(daefr and prcfr) and thus almost decodeable.

Fixed missing documentation of tfree/totfr.  This and everything else
in the extended vmstats area is misdocumented as being in a certain
place in the vmstats column.
This commit is contained in:
Bruce Evans 2006-04-29 21:30:23 +00:00
parent 55a5ff0140
commit e76bdda079
2 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
usr.bin/systat/systat.1
View File

@ -367,7 +367,8 @@ memory system which list the average number of
pages copied on write (`cow'),
pages zero filled on demand (`zfod'),
pages optimize zero filled on demand (`ozfod'),
slow (on-the-fly) zero fills percentage (`%slo-z'),
slow (on-the-fly) zero fills percentage (`%sloz'),
total pages freed (`totfr'),
pages wired down (`wire'),
active pages (`act'),
inactive pages (`inact'),
@ -384,12 +385,11 @@ per second over the refresh interval.
.Pp
At the bottom of this column are lines showing the
amount of memory, in kilobytes, used for the buffer cache (`buf'),
the number of dirty buffers in the buffer cache (`dirtybuf'),
desired maximum size of vnode cache (`desiredvnodes') (mostly unused,
except to size the name cache),
number of vnodes actually allocated (`numvnodes'),
the number of dirty buffers in the buffer cache (`dtbuf'),
desired maximum size of vnode cache (`desvn'),
number of vnodes actually allocated (`numvn'),
and
number of allocated vnodes that are free (`freevnodes').
number of allocated vnodes that are free (`frevn').
.Pp
Running down the right hand side of the display is a breakdown
of the interrupts being handled by the system.

12
usr.bin/systat/vmstat.c
View File

@ -315,11 +315,11 @@ labelkre()
mvprintw(VMSTATROW + 11, VMSTATCOL + 10, "pdpgs");
mvprintw(VMSTATROW + 12, VMSTATCOL + 10, "intrn");
mvprintw(VMSTATROW + 13, VMSTATCOL + 10, "buf");
mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "dirtybuf");
mvprintw(VMSTATROW + 14, VMSTATCOL + 10, "dtbuf");
mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "desiredvnodes");
mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "numvnodes");
mvprintw(VMSTATROW + 17, VMSTATCOL + 10, "freevnodes");
mvprintw(VMSTATROW + 15, VMSTATCOL + 10, "desvn");
mvprintw(VMSTATROW + 16, VMSTATCOL + 10, "numvn");
mvprintw(VMSTATROW + 17, VMSTATCOL + 10, "frevn");
mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt");
@ -361,8 +361,8 @@ labelkre()
*/
mvprintw(VMSTATROW + 11, VMSTATCOL - 6, "zfod");
mvprintw(VMSTATROW + 12, VMSTATCOL - 6, "ozfod");
mvprintw(VMSTATROW + 13, VMSTATCOL - 6, "%%slo-z");
mvprintw(VMSTATROW + 14, VMSTATCOL - 6, "tfree");
mvprintw(VMSTATROW + 13, VMSTATCOL - 6, "%%sloz");
mvprintw(VMSTATROW + 14, VMSTATCOL - 6, "totfr");
extended_vm_stats = 1;
} else {
extended_vm_stats = 0;