nvme-solidigm-latency-tracking-log

NVME-SOLIDIGM-LATE(1) NVMe Manual NVME-SOLIDIGM-LATE(1)

NAME

   nvme-solidigm-latency-tracking-log - Enable/Retrieve Latency tracking Log

SYNOPSIS

   nvme solidigm latency-tracking-log <device> [--enable | -e] [--disable | -d]
                                                 [--read | -r] [--write | -w]
                                                 [--type <value> | -t <value>]
                                                 [--output-format=<fmt> | -o <fmt>]

DESCRIPTION

   Enables, disables, or retrieves the Solidigm latency tracking log for the given NVMe device. This log provides detailed information about I/O latencies.

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

OPTIONS

   -e, --enable
       Enable latency tracking before retrieving the log.

   -d, --disable
       Disable latency tracking after retrieving the log.

   -r, --read
       Retrieve read latency statistics (default if neither --read nor --write is specified).

   -w, --write
       Retrieve write latency statistics.

   -t <value>, --type <value>
       Specify the log type to retrieve. Valid values depend on the devices capabilities.

   -o <fmt>, --output-format=<fmt>
       Set the reporting format to normal, json, or binary. Only one output format can be used at a time.

EXAMPLES

      Enable latency tracking and retrieve the read latency log:

           # nvme solidigm latency-tracking-log /dev/nvme0 --enable --read

      Retrieve the write latency log in JSON format:

           # nvme solidigm latency-tracking-log /dev/nvme0 --write -o json

      Disable latency tracking after retrieving the log:

           # nvme solidigm latency-tracking-log /dev/nvme0 --disable

      Specify a log type when retrieving latency statistics:

           # nvme solidigm latency-tracking-log /dev/nvme0 --type 1 --read

NVME

   Part of the nvme-user suite

NVMe 05/02/2025 NVME-SOLIDIGM-LATE(1)