NVME-FEAT-POWER-M(1)

okay so this is the nvme-feat-power-meas page from the NVMe Manual, and it’s literally all about getting and setting the power measurement feature. bestie, let’s get into it 💅✨

✨ NAME ✨

nvme-feat-power-meas — Get and set power measurement feature

💫 SYNOPSIS 💫

nvme [<global-options>] feat power-meas <device>
                        [--pwrmsr=<pwrmsr> | -p <pwrmsr>] [--pwrmsd=<pwrmsd> | -d <pwrmsd>]
                        [--sel=<select> | -S <select>] [--save | -s]

🫶 DESCRIPTION 🫶

Get and set power measurement feature. that’s the whole vibe, no cap.

The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1). so yeah, you gotta give it a device — it’s not optional, bestie 🎀

If any of the setting options (--pwrmsr or --pwrmsd) are specified, the command will update the power measurement configuration. If none of these options are specified, it will retrieve and display the current configuration. it’s giving “set it or get it” and honestly? iconic.

On success it returns 0, error code otherwise. periodt.

🎀 OPTIONS 🎀

• -p <pwrmsr>, --pwrmsr=<pwrmsr> — Power Measurement Sample Rate. Specifies the sampling rate for power measurement.
• -d <pwrmsd>, --pwrmsd=<pwrmsd> — Power Measurement Duration. Specifies the total duration for the power measurement window.
• -S <select>, --sel=<select> — Select (SEL): This field specifies which value of the attributes to return in the provided data:
  • 0 — current — Current
  • 1 — default — Default
  • 2 — saved — Saved
  • 3 — supported — Supported capabilities
• -s, --save — Save the attribute so that it persists through all power states and resets. it’s giving “make it survive the chaos” 💖

🌈 GLOBAL 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. iykyk 👑

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🍓 EXAMPLES 🍓

1. Has the program issue a feat power-meas to get the current configuration:

# nvme feat power-meas /dev/nvme0

2. Has the program issue a feat power-meas to set power measurement settings with saving enabled:

# nvme feat power-meas /dev/nvme0 --pwrmsr=5 --pwrmsd=100 --save

👑 NVME 👑

Part of the nvme-user suite.

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later, bestie 🫶 this page is from the NVMe manual, dated 10/30/2026, and its footer tag is NVME-FEAT-POWER-M(1). slay 💖✨