nvme-feat-int-coalesce(1)
=========================

NAME
----
nvme-feat-int-coalesce - Get and set interrupt coalescing feature

SYNOPSIS
--------
[verse]
'nvme' [<global-options>] 'feat int-coalesce' <device>
			[--thr=<thr> | -t <thr>] [--time=<time> | -T <time>]
			[--sel=<select> | -S <select>] [--save | -s]

DESCRIPTION
-----------
Get and set interrupt coalescing feature.

The <device> parameter is mandatory and may be either the NVMe character
device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).

If any of the setting options (`--thr` or `--time`) are specified,
the command will update the interrupt coalescing configuration. If none of
these options are specified, it will retrieve and display the current
configuration.

On success it returns 0, error code otherwise.

OPTIONS
-------
-t <thr>::
--thr=<thr>::
	Aggregation Threshold. Specifies the minimum number of completion
	queue entries required to trigger an interrupt.

-T <time>::
--time=<time>::
	Aggregation Time. Specifies the maximum time in 100 microsecond
	units that the controller may delay an interrupt due to coalescing.

-S <select>::
--sel=<select>::
	Select (SEL): This field specifies which value of the attributes
	to return in the provided data:

-s::
--save::
	Save the attribute so that it persists through all power states and resets.

include::global-options.txt[]

EXAMPLES
--------
* Has the program issue a feat int-coalesce to get the current configuration:
+
------------
# nvme feat int-coalesce /dev/nvme0
------------

* Has the program issue a feat int-coalesce to set the aggregation threshold
  and time:
+
------------
# nvme feat int-coalesce /dev/nvme0 --thr=10 --time=5 --save
------------

NVME
----
Part of the nvme-user suite.

