term% cat index.txt IOSTAT(1) General Commands Manual IOSTAT(1)
NAME
iostat, load, dkstat - report I/O and CPU statistics
SYNOPSIS
iostat [ interval [ count ] ]
load [ interval [ count [ sysfile [ corefile ] ] ] ]
dkstat [ interval [ count ] ]
DESCRIPTION
Iostat periodically reports the number of characters read and written
to terminals, and, for each disk, the number of seeks and transfers per
second, and average milliseconds per seek. It also reports the per‐
centage of time the system has spent in user mode, in user mode running
low priority (niced) processes, in system mode, and idling. The first
report is for all time since a reboot and each subsequent report is for
the last interval only.
Load periodically reports the number of processes ready to run averaged
over the preceding 1, 5, and 15 minutes.
Dkstat periodically reports the number of packets received and sent
over the Datakit network, together with error reports if any occurred.
The first report is for all time since a reboot and each subsequent re‐
port is for the last interval only.
The optional interval argument causes a report once each interval sec‐
onds.
The optional count argument restricts the number of reports.
The optional arguments sysfile and corefile cause the named files to be
consulted instead of the defaults, `/unix' and `/dev/kmem'.
FILES
/dev/kmem
/unix
SEE ALSO
sysmon(9.1), vmstat(8)
IOSTAT(1)