Man page - daxctl-online-memory(1)

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Manual

DAXCTL-ONLINE-MEMORY

NAME
SYNOPSIS
EXAMPLES
DESCRIPTION
OPTIONS
COPYRIGHT
SEE ALSO

NAME

daxctl-online-memory - Online the memory for a device that is in system-ram mode

SYNOPSIS

daxctl online-memory <dax0.0> [<dax1.0>...<daxY.Z>] [<options>]

EXAMPLES

• Reconfigure dax0.0 to system-ram mode, don’t online the memory

# daxctl reconfigure-device --mode=system-ram --no-online --human dax0.0
{
"chardev":"dax0.0",
"size":"7.87 GiB (8.45 GB)",
"target_node":2,
"mode":"system-ram"
}

• Online the memory separately

# daxctl online-memory dax0.0
dax0.0: 62 new sections onlined
onlined memory for 1 device

• Onlining memory when some sections were already online

# daxctl online-memory dax0.0
dax0.0: 1 section already online
dax0.0: 61 new sections onlined
onlined memory for 1 device

DESCRIPTION

Online the memory sections associated with a device that has been converted to the system-ram mode. If one or more blocks are already online, print a message about them, and attempt to online the remaining blocks.

This is complementary to the daxctl-reconfigure-device command, when used with the --no-online option to skip onlining memory sections immediately after the reconfigure. In these scenarios, the memory can be onlined at a later time using daxctl-online-memory .

OPTIONS

-r, --region=

Restrict the operation to devices belonging to the specified region(s). A device-dax region is a contiguous range of memory that hosts one or more /dev/daxX.Y devices, where X is the region id and Y is the device instance id.

--no-movable

--movable is the default. This can be overridden to online new memory such that it is not movable . This allows any allocation to potentially be served from this memory. This may preclude subsequent removal. With the --movable behavior (which is default), kernel allocations will not consider this memory, and it will be reserved for application use.

-u, --human

By default the command will output machine-friendly raw-integer data. Instead, with this flag, numbers representing storage size will be formatted as human readable strings with units, other fields are converted to hexadecimal strings.

-v, --verbose

Emit more debug messages

COPYRIGHT

Copyright © 2016 - 2022, Intel Corporation. License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.