nvme-solidigm-workload-tracker - Man Page

nvme solidigm workload-tracker <device> [--enable | -e] [--disable | -d]
                                      [--sample-time=<time> | -s <time>]
                                      [--type=<type> | -t <type>]
                                      [--run-time=<seconds> | -r <seconds>]
                                      [--flush-freq=<count> | -f <count>]
                                      [--wall-clock | -w]
                                      [--trigger-field=<field> | -T <field>]
                                      [--trigger-threshold=<value> | -V <value>]
                                      [--trigger-on-delta | -D]
                                      [--trigger-on-latency | -L]
                                      [--verbose | -v]

Captures and displays real-time workload tracker samples for the given Solidigm NVMe device. This command allows for monitoring and analysis of the device’s workload characteristics.

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

-e,  --enable

Enable the workload tracker before capturing samples.

-d,  --disable

Disable the workload tracker after capturing samples.

-s <time>, --sample-time=<time>

Set the sample interval. Valid values are: default, 1ms, 5ms, 10ms, 50ms, 100ms, 500ms, 1s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1h.

-t <type>, --type=<type>

Set the tracker type. Valid types are: Base, CmdQ, Pattern, RandSeq, Throttle, Power, Defrag.

-r <seconds>, --run-time=<seconds>

Limit runtime capture time in seconds.

-f <count>, --flush-freq=<count>

Number of samples (1 to 126) to wait before extracting data. Default is 100 samples.

-w,  --wall-clock

Log current wall timestamp when entry was retrieved.

-T <field>, --trigger-field=<field>

Field name to stop trigger on.

-V <value>, --trigger-threshold=<value>

Field value to trigger stop sampling.

-D,  --trigger-on-delta

Trigger on delta to stop sampling.

-L,  --trigger-on-latency

Use latency tracker to trigger stop sampling.

-v,  --verbose

Increase logging verbosity. Can be used multiple times.

• Enable the workload tracker and capture samples:

  # nvme solidigm workload-tracker /dev/nvme0 --enable

• Capture workload tracker samples with a 1ms interval for 60 seconds:

  # nvme solidigm workload-tracker /dev/nvme0 --enable --sample-time=1ms --run-time=60

• Disable the workload tracker:

  # nvme solidigm workload-tracker /dev/nvme0 --disable

• Enable the workload tracker and capture samples with a specific sample time and type:

  # nvme solidigm workload-tracker /dev/nvme0 --enable --sample-time=1ms --type=Base

• Capture Power tracker samples with a 10-second interval for 5 minutes:

  # nvme solidigm workload-tracker /dev/nvme0 --enable --type=Power --sample-time=10s --run-time=300

Part of the nvme-user suite