1NVME-PRED-LAT-EVE(1)              NVMe Manual             NVME-PRED-LAT-EVE(1)
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NAME

6       nvme-pred-lat-event-agg-log - Send Predictable Latency Event Aggregate
7       Log Page request, returns result and log
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SYNOPSIS

10       nvme pred-lat-event-agg-log <device> [--log-entries=<log_entries> | -e <log_entries>]
11                               [--rae | -r] [--raw-binary | -b]
12                               [--output-format=<fmt> | -o <fmt>]
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DESCRIPTION

15       Retrieves the NVMe Predictable Latency Event Aggregate 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 Predictable Latency Event Aggregate Log Page
23       structure may be returned in one ofseveral ways depending on the option
24       flags; the structure may parsed by the program and printed in a
25       readable format or the raw buffer may be printed to stdout for another
26       program to parse.
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OPTIONS

29       -e <log_entries>, --log-entries=<log_entries>
30           Retrieve the Predictable Latency Event Aggregate Log pending
31           entries. 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 5.14.1.11. The maximum number of log
34           entries supported is 2044 for the device.
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36       -r, --rae
37           Retain an Asynchronous Event.
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39       -b, --raw-binary
40           Print the raw Predectible Latency Event Aggregate log buffer to
41           stdout.
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43       -o <format>, --output-format=<format>
44           Set the reporting format to normal, json, or binary. Only one
45           output format can be used at a time.
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EXAMPLES

48       •   Print the Predictable Latency Event Aggregate Log page in a human
49           readable format:
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51               # nvme pred-lat-event-agg-log /dev/nvme0
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53       •   Print the raw Predectible Latency Event Aggregate log to a file:
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55               # nvme pred-lat-event-agg-log /dev/nvme0 --raw-binary > pred_lat_agg_log.raw
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57           It is probably a bad idea to not redirect stdout when using this
58           mode.
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NVME

61       Part of the nvme-user suite
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65NVMe                              04/11/2022              NVME-PRED-LAT-EVE(1)
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