1NVME-PREDICTABLE-L(1)             NVMe Manual            NVME-PREDICTABLE-L(1)
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NAME

6       nvme-predictable-lat-log - Send Predectible latency per NVM set log
7       page request, returns result and log
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SYNOPSIS

10       nvme predictable-lat-log <device> [--nvmset-id=<nvmset_id> | -i <nvmset_id>]
11                               [--raw-binary | -b]
12                               [--output-format=<fmt> | -o <fmt>]
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DESCRIPTION

15       Retrieves the NVMe Predectible latency per NVM set log page from an
16       NVMe device and provides the returned structure.
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18       The <device> parameter is mandatory and may be either the NVMe
19       character device (ex: /dev/nvme0), or a namespace block device (ex:
20       /dev/nvme0n1).
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22       On success, the returned Predectible latency per NVM set log structure
23       may be returned in one ofseveral ways depending on the option flags;
24       the structure may parsed by the program and printed in a readable
25       format or the raw buffer may be printed to stdout for another program
26       to parse.
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OPTIONS

29       -i <nvmset_id>, --nvmset-id=<nvmset_id>
30           Retrieve the Predectible latency per NVM set log for the given
31           nvmset id. This argument is mandatory and its success may depend on
32           the device’s statistics to provide this log For More details see
33           NVM Express 1.4 Spec. Section 5.14.1.10. The default nvmset id to
34           use is 1 for the device.
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36       -b, --raw-binary
37           Print the raw Predectible latency per NVM set log buffer to stdout.
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39       -o <format>, --output-format=<format>
40           Set the reporting format to normal, json, or binary. Only one
41           output format can be used at a time.
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EXAMPLES

44       •   Print the Predectible latency per NVM set log page in a human
45           readable format:
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47               # nvme predictable-lat-log /dev/nvme0
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49       •   Print the raw Predectible latency per NVM set log to a file:
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51               # nvme predictable-lat-log /dev/nvme0 --raw-binary > nvmset_log.raw
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53           It is probably a bad idea to not redirect stdout when using this
54           mode.
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NVME

57       Part of the nvme-user suite
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61NVMe                              04/11/2022             NVME-PREDICTABLE-L(1)
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