IOSTAT(8) | System Manager's Manual | IOSTAT(8) |
iostat
— report
I/O statistics
iostat |
[-CDdIT ] [-c
count] [-M
core] [-N
system] [-w
wait] [drives] |
iostat
displays kernel I/O statistics on
terminal, disk and CPU operations. By default,
iostat
displays one line of statistics averaged over
the machine's run time. The -I
option causes
iostat
to print raw, unaveraged values.
The options are as follows:
-C
-D
, -d
, or
-T
flags are used.-c
count-I
flag is in effect, the first display is for the
time since a reboot and each subsequent report is for the time period
since the last display. Unless overridden by the
-w
option, the wait interval between lines is 1
second.-D
-d
-I
-M
core-N
system-T
-C
, -D
, or
-d
flags are used.-w
wait-c
option, iostat
will
display output until it is interrupted.iostat
displays its information in the
following format:
iostat
displays only the first four drives. To
force iostat
to display specific drives, their
names may be supplied on the command line.
-D
),
presents the following values:
fstat(1), netstat(1), nfsstat(1), ps(1), systat(1), top(1), pstat(8), vmstat(8)
The sections starting with “Interpreting system activity” in Installing and Operating 4.3BSD.
January 17, 2013 | OpenBSD-6.0 |