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 device’s 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
10/31/2024 | NVMe |