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nvme-predictable-lat-log(1)
===========================
NAME
----
nvme-predictable-lat-log - Send Predectible latency per NVM set log page request,
returns result and log
SYNOPSIS
--------
[verse]
'nvme predictable-lat-log' <device> [--nvmset-id=<nvmset_id> | -i <nvmset_id>]
[--raw-binary | -b]
[--output-format=<fmt> | -o <fmt>]
DESCRIPTION
-----------
Retrieves the NVMe Predectible latency per NVM set log page from an NVMe device
and provides the returned structure.
The <device> parameter is mandatory and may be either the NVMe character
device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).
On success, the returned Predectible latency per NVM set log structure
may be returned in one ofseveral ways depending on the option flags; the
structure may parsed by the program and printed in a readable format or
the raw buffer may be printed to stdout for another program to parse.
OPTIONS
-------
-i <nvmset_id>::
--nvmset-id=<nvmset_id>::
Retrieve the Predectible latency per NVM set log for the given nvmset id.
This argument is mandatory and its success may depend on the device's
statistics to provide this log For More details see NVM Express 1.4 Spec.
Section 5.14.1.10. The default nvmset id to use is 1 for the device.
-b::
--raw-binary::
Print the raw Predectible latency per NVM set log buffer to stdout.
-o <format>::
--output-format=<format>::
Set the reporting format to 'normal', 'json', or
'binary'. Only one output format can be used at a time.
EXAMPLES
--------
* Print the Predectible latency per NVM set log page in a human readable format:
+
------------
# nvme predictable-lat-log /dev/nvme0
------------
+
* Print the raw Predectible latency per NVM set log to a file:
+
------------
# nvme predictable-lat-log /dev/nvme0 --raw-binary > nvmset_log.raw
------------
+
It is probably a bad idea to not redirect stdout when using this mode.
NVME
----
Part of the nvme-user suite
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