System

• General System Attributes
• Filesystem Attributes
• System Memory Attributes
• System Paging Attributes
• Deprecated System Attributes

General System Attributes

Describes System attributes

Attributes:

Key	Stability	Value Type	Description	Example Values
system.device.name		string	The OS level identifier for a device, such as disk, partition or network interface.	/dev/sda; eth0; \network-drive

Filesystem Attributes

Describes Filesystem attributes

Attributes:

Key	Stability	Value Type	Description	Example Values
system.filesystem.mode		string	The filesystem mode	rw, ro
system.filesystem.mountpoint		string	The filesystem mount path	/mnt/data
system.filesystem.state		string	The filesystem state	used (see more)
system.filesystem.type		string	The filesystem type	ext4 (see more)

system.filesystem.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
free	free
reserved	reserved
used	used

system.filesystem.type has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
exfat	exfat
ext4	ext4
fat32	fat32
hfsplus	hfsplus
ntfs	ntfs
refs	refs

System Memory Attributes

Describes System Memory attributes

Attributes:

Key	Stability	Value Type	Description	Example Values
system.memory.linux.hugepages.state		string	The Linux HugePages memory state	free; used (see more)
system.memory.linux.slab.state		string	The Linux Slab memory state	reclaimable; unreclaimable (see more)
system.memory.state		string	The memory state	used; available (see more)

system.memory.linux.hugepages.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
free	free
used	used

system.memory.linux.slab.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
reclaimable	reclaimable
unreclaimable	unreclaimable

system.memory.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
available	An estimate of how much memory is available for starting new applications, without causing swapping. [1]
used	Actual used virtual memory in bytes. [2]

[1]: Calculation based on the operating system metrics. On Linux, this corresponds to “MemAvailable” from /proc/meminfo.

[2]: Calculation based on the operating system metrics. On Linux, this corresponds to “MemTotal - MemAvailable” from /proc/meminfo, which more accurately reflects memory in active use by applications compared to older formulas based on free, cached, and buffers. If MemAvailable is not available, a fallback to those older formulas may be used.

System Paging Attributes

Describes System Memory Paging attributes

Attributes:

Key	Stability	Value Type	Description	Example Values
system.paging.direction		string	The paging access direction	in (see more)
system.paging.fault.type		string	The paging fault type	minor (see more)
system.paging.state		string	The memory paging state	free (see more)

system.paging.direction has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
in	in
out	out

system.paging.fault.type has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
major	major
minor	minor

system.paging.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
free	free
used	used

Deprecated System Attributes

Deprecated system attributes.

Attributes:

Key	Stability	Value Type	Description	Example Values
system.cpu.logical_number	Replaced by cpu.logical_number.	int	Deprecated, use cpu.logical_number instead.	1
system.cpu.state	Replaced by cpu.mode.	string	Deprecated, use cpu.mode instead.	idle; interrupt (see more)
system.device	Replaced by system.device.name.	string	Deprecated, use system.device.name instead.	(identifier)
system.network.state	Replaced by network.connection.state.	string	Deprecated, use network.connection.state instead.	close_wait (see more)
system.paging.type	Replaced by system.paging.fault.type.	string	Deprecated, use system.paging.fault.type instead.	minor (see more)
system.process.status	Replaced by process.state.	string	Deprecated, use process.state instead.	running (see more)
system.processes.status	Replaced by process.state.	string	Deprecated, use process.state instead.	running (see more)

system.cpu.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
idle	idle
interrupt	interrupt
iowait	iowait
nice	nice
steal	steal
system	system
user	user

system.network.state has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
close	close
close_wait	close_wait
closing	closing
delete	delete
established	established
fin_wait_1	fin_wait_1
fin_wait_2	fin_wait_2
last_ack	last_ack
listen	listen
syn_recv	syn_recv
syn_sent	syn_sent
time_wait	time_wait

system.paging.type has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
major	major
minor	minor

system.process.status has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
defunct	defunct
running	running
sleeping	sleeping
stopped	stopped

system.processes.status has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
defunct	defunct
running	running
sleeping	sleeping
stopped	stopped