From f2c543b4ccad3b9f8871d952cddf66b3b438595b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 2 Jul 2021 22:49:35 +0200 Subject: Merging upstream version 1.14. Signed-off-by: Daniel Baumann --- Documentation/nvme-predictable-lat-log.html | 857 ++++++++++++++++++++++++++++ 1 file changed, 857 insertions(+) create mode 100644 Documentation/nvme-predictable-lat-log.html (limited to 'Documentation/nvme-predictable-lat-log.html') diff --git a/Documentation/nvme-predictable-lat-log.html b/Documentation/nvme-predictable-lat-log.html new file mode 100644 index 0000000..42dfda8 --- /dev/null +++ b/Documentation/nvme-predictable-lat-log.html @@ -0,0 +1,857 @@ + + + + + + +nvme-predictable-lat-log(1) + + + + + +
+
+

SYNOPSIS

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

DESCRIPTION

+
+

Retrieves the NVMe Predectible latency per NVM set log page from an NVMe device +and provides the returned structure.

+

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

+

On success, the returned Predectible latency per NVM set log structure +may be returned in one ofseveral ways depending on the option flags; the +structure may parsed by the program and printed in a readable format or +the raw buffer may be printed to stdout for another program to parse.

+
+
+
+

OPTIONS

+
+
+
+-i <nvmset_id> +
+
+--nvmset-id=<nvmset_id> +
+
+

+ Retrieve the Predectible latency per NVM set log for the given nvmset id. + This argument is mandatory and its success may depend on the device’s + statistics to provide this log For More details see NVM Express 1.4 Spec. + Section 5.14.1.10. The default nvmset id to use is 1 for the device. +

+
+
+-b +
+
+--raw-binary +
+
+

+ Print the raw Predectible latency per NVM set log buffer to stdout. +

+
+
+-o <format> +
+
+--output-format=<format> +
+
+

+ Set the reporting format to normal, json, or + binary. Only one output format can be used at a time. +

+
+
+
+
+
+

EXAMPLES

+
+
    +
  • +

    +Print the Predectible latency per NVM set log page in a human readable format: +

    +
    +
    +
    # nvme predictable-lat-log /dev/nvme0
    +
    +
    • +
  • +

    +Print the raw Predectible latency per NVM set log to a file: +

    +
    +
    +
    # nvme predictable-lat-log /dev/nvme0 --raw-binary > nvmset_log.raw
    +
    +

    It is probably a bad idea to not redirect stdout when using this mode.

    +
    • +
+
+
+
+

NVME

+
+

Part of the nvme-user suite

+
+
+
+
+ + + -- cgit v1.2.3