nvme-solidigm-latency-tracking-log1
Enable/retrieve latency tracking log
Usage
nvme [<global-options>]
solidigm
latency-tracking-log
<device>
[{--enable | -e}]
[{--disable | -d}]
[{--read | -r}]
[{--write | -w}]
[{--type
<value> | -t
<value>}]
Overview
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 device’s capabilities.
Options
The following options are defined at the top-level nvme command and are available to this subcommand:
-
--dry-run -
Print the command that would be executed, but do not actually execute it.
-
--no-ioctl-probing -
Disable probing for 64-bit IOCTL support.
-
--no-retries -
Disable retry logic on transient errors.
-
-o <fmt>, --output-format=<fmt> -
Set the reporting format to normal, tabular, 'json, or binary. Only one output format may be used at a time.
-
--output-format-version=<version> -
Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names. Other versions are rejected.
-
--quiet -
Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.
-
--set-options=<key=value>[,<key=value>...] -
Set libnvme library options for this invocation. Supported keys are force-4k, mi-probe-enabled, test-base-dir and test-sysfs-dir.
-
--timeout=<ms> -
Set the timeout for the command in milliseconds. infinite or -1 waits without a time limit (0xffffffff).
-
-v, --verbose -
Increase the level of detail in the output. May be specified multiple times to further increase verbosity.
These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.
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
Releases
2 releases since Debian 13 (Trixie); the text changed 1 time.
--dry-run since Arch Linux 2026-11-01;
--no-ioctl-probing since Arch Linux 2026-11-01;
--no-retries since Arch Linux 2026-11-01;
--output-format-version since Arch Linux 2026-11-01;
--quiet since Arch Linux 2026-11-01;
--set-options since Arch Linux 2026-11-01;
--timeout since Arch Linux 2026-11-01;
--verbose since Arch Linux 2026-11-01;
-v since Arch Linux 2026-11-01.