100 lines
2.6 KiB
Groff
100 lines
2.6 KiB
Groff
'\" t
|
|
.\" Title: nvme-intel-lat-stats
|
|
.\" 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\-INTEL\-LAT\-ST" "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-intel-lat-stats \- Send NVMe Identify Controller, return result and structure
|
|
.SH "SYNOPSIS"
|
|
.sp
|
|
.nf
|
|
\fInvme intel lat\-stats\fR <device> [\-\-write | \-w] [\-\-raw\-binary | \-b]
|
|
.fi
|
|
.SH "DESCRIPTION"
|
|
.sp
|
|
For the NVMe device given, retrieves intel vendor specific latency statistics and provides the result and returned structure\&.
|
|
.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)\&.
|
|
.sp
|
|
On success, the structure may be returned in one of several ways depending on the option flags; the structure may be parsed by the program or the raw buffer may be printed to stdout\&.
|
|
.SH "OPTIONS"
|
|
.PP
|
|
\-b, \-\-raw\-binary
|
|
.RS 4
|
|
Print the raw buffer to stdout\&. Structure is not parsed by program\&. This overrides the vendor specific and human readable options\&.
|
|
.RE
|
|
.PP
|
|
\-w, \-\-write
|
|
.RS 4
|
|
Get write statistics\&. Read statistics are returned by default\&.
|
|
.RE
|
|
.SH "EXAMPLES"
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
Get the read statistics
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
# nvme intel lat\-stats /dev/nvme0
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
Get the write statistics
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
# nvme intel lat\-stats /dev/nvme0 \-w
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.RE
|
|
.SH "NVME"
|
|
.sp
|
|
Part of the nvme\-user suite
|