KSTAT(1) FreeBSD General Commands Manual KSTAT(1)
NAME
kstat - display kernel statistics
SYNOPSIS
kstat [-w wait] [name | provider:instance:name:unit] ...
DESCRIPTION
The kstat utility displays statistics collected by the kernel. By
default, all available data is displayed. If at least one argument is
given, the display is restricted to data that matches at least one of the
arguments.
The options are as follows:
-w wait Show statistics at intervals of wait seconds.
The components of arguments are as follows:
provider The name of the device providing the statistical data. Pattern
matching with glob(7) patterns is supported.
instance An unsigned integer number. Currently, all statistics use an
instance number of 0.
name A string identifying the kind of data to be shown. Pattern
matching with glob(7) patterns is supported.
unit An unsigned integer number, used for example if a network
device has multiple rings.
If an empty string is given for any of the components, all values of the
respective property are accepted.
A complete list of four-component arguments supported on the current
machine can be displayed by calling kstat without any argument.
FILES
/dev/kstat pseudo-device providing kernel statistics
EXIT STATUS
The kstat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
Show receive queue statistics for all interfaces and transmit queue
statistics for all em(4) interfaces:
$ kstat rxq em*::txq:
SEE ALSO
netstat(1), systat(1)
HISTORY
The kstat utility first appeared in OpenBSD 6.8.
AUTHORS
David Gwynne <
[email protected]>
FreeBSD 14.1-RELEASE-p8 December 3, 2024 FreeBSD 14.1-RELEASE-p8