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diff --git a/Documentation/nvme-solidigm-latency-tracking-log.1 b/Documentation/nvme-solidigm-latency-tracking-log.1 new file mode 100644 index 0000000..438583b --- /dev/null +++ b/Documentation/nvme-solidigm-latency-tracking-log.1 @@ -0,0 +1,166 @@ +'\" t +.\" Title: nvme-solidigm-latency-tracking-log +.\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author] +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 10/31/2024 +.\" Manual: NVMe Manual +.\" Source: NVMe +.\" Language: English +.\" +.TH "NVME\-SOLIDIGM\-LATE" "1" "10/31/2024" "NVMe" "NVMe Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +nvme-solidigm-latency-tracking-log \- Enable/Retrieve Latency tracking Log +.SH "SYNOPSIS" +.sp +.nf +\fInvme solidigm latency\-tracking\-log\fR <device> [\-\-enable | \-e] [\-\-disable | \-d] + [\-\-read | \-r] [\-\-write | \-w] + [\-\-type <value> | \-t <value>] + [\-\-output\-format=<fmt> | \-o <fmt>] +.fi +.SH "DESCRIPTION" +.sp +Enables, disables, or retrieves the Solidigm latency tracking log for the given NVMe device\&. This log provides detailed information about I/O latencies\&. +.sp +The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1)\&. +.SH "OPTIONS" +.PP +\-e, \-\-enable +.RS 4 +Enable latency tracking before retrieving the log\&. +.RE +.PP +\-d, \-\-disable +.RS 4 +Disable latency tracking after retrieving the log\&. +.RE +.PP +\-r, \-\-read +.RS 4 +Retrieve read latency statistics (default if neither \-\-read nor \-\-write is specified)\&. +.RE +.PP +\-w, \-\-write +.RS 4 +Retrieve write latency statistics\&. +.RE +.PP +\-t <value>, \-\-type <value> +.RS 4 +Specify the log type to retrieve\&. Valid values depend on the device\(cqs capabilities\&. +.RE +.PP +\-o <fmt>, \-\-output\-format=<fmt> +.RS 4 +Set the reporting format to +\fInormal\fR, +\fIjson\fR, or +\fIbinary\fR\&. Only one output format can be used at a time\&. +.RE +.SH "EXAMPLES" +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Enable latency tracking and retrieve the read latency log: +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme solidigm latency\-tracking\-log /dev/nvme0 \-\-enable \-\-read +.fi +.if n \{\ +.RE +.\} +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Retrieve the write latency log in JSON format: +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme solidigm latency\-tracking\-log /dev/nvme0 \-\-write \-o json +.fi +.if n \{\ +.RE +.\} +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Disable latency tracking after retrieving the log: +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme solidigm latency\-tracking\-log /dev/nvme0 \-\-disable +.fi +.if n \{\ +.RE +.\} +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Specify a log type when retrieving latency statistics: +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme solidigm latency\-tracking\-log /dev/nvme0 \-\-type 1 \-\-read +.fi +.if n \{\ +.RE +.\} +.RE +.SH "NVME" +.sp +Part of the nvme\-user suite |