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Differential D29754 Diff 90175 usr.bin/systat/systat.1

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usr.bin/systat/systat.1

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Show the disk I/O statistics in bar graph form (default). Show the disk I/O statistics in bar graph form (default).
.It Cm kbpt .It Cm kbpt
Toggle the display of kilobytes per transaction. Toggle the display of kilobytes per transaction.
(the default is to (the default is to
not display kilobytes per transaction). not display kilobytes per transaction).
.El .El
.It Ic swap .It Ic swap
Show information about swap space usage on all the Show information about swap space usage on all the
swap areas compiled into the kernel. swap areas compiled into the kernel and processes that are swapped out
The first column is the device name of the partition. as well as a summary of disk activity.
bcrUnsubmitted
Done
Inline Actions

I would change the last "and" here to "as well as" to make this long sentence a bit more legible. Otherwise, it's just one long sentence connected by and's. I'm prone to do this myself, but I think we don't need to break up this sentence into two either.

bcr: I would change the last "and" here to "as well as" to make this long sentence a bit more…
The next column is the total space available in the partition. .Pp
The swap areas are displayed first with their name, sizes and
usage percentage.
bcrUnsubmitted
Done
Inline Actions

s/percentage usage/usage percentage/

bcr: s/percentage usage/usage percentage/
The The
.Ar Used .Ar Used
column indicates the total blocks used so far; column indicates the total blocks used so far;
the graph shows the percentage of space in use on each partition. the graph shows the percentage of space in use on each partition.
If there are more than one swap partition in use, If there are more than one swap partition in use,
a total line is also shown. a total line is also shown.
Areas known to the kernel, but not in use are shown as not available. Areas known to the kernel, but not in use are shown as not available.
.Pp
Below the swap space statistics,
processes are listed in order of higher swap area usage.
Pid, username, a part of command line, the total use of swap space
kibUnsubmitted
Done
Inline Actions

..., the total use of swap space in bytes, ...

kib: ..., the total use of swap space in bytes, ...
in bytes, the size of process, as well as per-process swap usage percentage and
bcrUnsubmitted
Done
Inline Actions

s/and/as well as/ (in this line here, see above)

bcr: s/and/as well as/ (in this line here, see above)
per-system swap space percentage are shown per process.
.Pp
At the bottom left is the disk usage display.
It reports the number of
kilobytes per transaction, transactions per second, megabytes
per second and the percentage of the time the disk was busy averaged
over the refresh period of the display (by default, five seconds).
The system keeps statistics on most every storage device.
In general, up
to seven devices are displayed.
The devices displayed by default are the
first devices in the kernel's device list.
See
.Xr devstat 3
and
.Xr devstat 9
for details on the devstat system.
.It Ic vmstat .It Ic vmstat
Take over the entire display and show a (rather crowded) compendium Take over the entire display and show a (rather crowded) compendium
of statistics related to virtual memory usage, process scheduling, of statistics related to virtual memory usage, process scheduling,
device interrupts, system name translation caching, disk I/O etc. device interrupts, system name translation caching, disk I/O etc.
.Pp .Pp
The upper left quadrant of the screen shows the number The upper left quadrant of the screen shows the number
of users logged in and the load average over the last one, five, of users logged in and the load average over the last one, five,
and fifteen minute intervals. and fifteen minute intervals.
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