79 lines
2 KiB
Text
79 lines
2 KiB
Text
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nvme-solidigm-latency-tracking-log(1)
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=====================================
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NAME
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----
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nvme-solidigm-latency-tracking-log - Enable/Retrieve Latency tracking Log
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SYNOPSIS
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--------
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[verse]
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'nvme solidigm latency-tracking-log' <device> [--enable | -e] [--disable | -d]
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[--read | -r] [--write | -w]
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[--type <value> | -t <value>]
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[--output-format=<fmt> | -o <fmt>]
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DESCRIPTION
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-----------
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Enables, disables, or retrieves the Solidigm latency tracking log for the
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given NVMe device. This log provides detailed information about I/O latencies.
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The <device> parameter is mandatory and may be either the NVMe character
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device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).
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OPTIONS
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-------
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-e::
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--enable::
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Enable latency tracking before retrieving the log.
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-d::
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--disable::
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Disable latency tracking after retrieving the log.
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-r::
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--read::
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Retrieve read latency statistics (default if neither --read nor --write is specified).
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-w::
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--write::
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Retrieve write latency statistics.
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-t <value>::
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--type <value>::
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Specify the log type to retrieve. Valid values depend on the device's capabilities.
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-o <fmt>::
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--output-format=<fmt>::
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Set the reporting format to 'normal', 'json', or 'binary'. Only one
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output format can be used at a time.
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EXAMPLES
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--------
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* Enable latency tracking and retrieve the read latency log:
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+
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------------
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# nvme solidigm latency-tracking-log /dev/nvme0 --enable --read
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------------
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* Retrieve the write latency log in JSON format:
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+
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------------
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# nvme solidigm latency-tracking-log /dev/nvme0 --write -o json
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------------
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* Disable latency tracking after retrieving the log:
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+
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------------
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# nvme solidigm latency-tracking-log /dev/nvme0 --disable
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------------
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* Specify a log type when retrieving latency statistics:
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+
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------------
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# nvme solidigm latency-tracking-log /dev/nvme0 --type 1 --read
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------------
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NVME
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----
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Part of the nvme-user suite
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