@ NETBSD.0 Instance domain for load average
Universally 3 instances, "1 minute" (1), "5 minute" (5) and
"15 minute" (15).

@ NETBSD.1 CPU Instance domain for kernel.percpu metrics
One instance for each physical CPU.

@ NETBSD.2 DISK Instance domain for disk.dev metrics
One instance for each physical "direct access" device.

@ kernel.all.hz system hz rate
Microseconds per "hz" tick.
@ kernel.all.load 1, 5 and 15 minute load average
@ kernel.all.pswitch count of context switches
@ kernel.all.syscall count of system calls
@ kernel.all.intr count of interrupts serviced
@ kernel.all.cpu.user total user CPU time for all CPUs
@ kernel.all.cpu.nice total nice user CPU time for all CPUs
@ kernel.all.cpu.sys total sys CPU time for all CPUs
@ kernel.all.cpu.intr total interrupt CPU time for all CPUs
@ kernel.all.cpu.idle total idle CPU time for all CPUs
@ kernel.percpu.cpu.user user CPU time for each CPU
@ kernel.percpu.cpu.nice nice user CPU time for each CPU
@ kernel.percpu.cpu.sys sys CPU time for each CPU
@ kernel.percpu.cpu.intr interrupt CPU time for each CPU
@ kernel.percpu.cpu.idle idle CPU time for each CPU

@ hinv.ncpu number of CPUs in the system
@ hinv.ndisk number of disks in the system
@ hinv.nfilesys number of (local) file systems currently mounted
@ hinv.ninterface number of active (up) network interfaces
@ hinv.physmem total system memory
@ hinv.pagesize kernel page size
@ hinv.cpu.vendor system's CPU vendor
@ hinv.cpu.model system's CPU model
@ hinv.cpu.arch system's machine dependent CPU architecture type

@ swap.length total swap space size
@ swap.used reserved (or allocated) swap space
@ swap.free available swap space

@ swap.pagesin pages read from external storage to service page faults
@ swap.pagesout dirty pages written to swap devices
When the rate of page writes is non-zero, this is the most useful
indication severe demand for physical memory.
@ swap.in number of swap in operations
@ swap.out number of swap out operations

@ disk.dev.read Count of read operations per disk
@ disk.dev.write Count of write operations per disk
@ disk.dev.total Count of read or write operations (IOPs) per disk
@ disk.dev.read_bytes Count of bytes read from each disk
@ disk.dev.write_bytes Count of bytes written to each disk
@ disk.dev.total_bytes Count of bytes transferred to or from each disk
@ disk.all.read Count of read operations across all disks
@ disk.all.write Count of write operations across all disks
@ disk.all.total Count of read or write operations (IOPs) across all disks
@ disk.all.read_bytes Count of bytes read from all disks
@ disk.all.write_bytes Count of bytes written to all disks
@ disk.all.total_bytes Count of bytes transferred to or from all disks

@ mem.util.all Total memory managed by the system
@ mem.util.used Memory that is actively in use
Equals "all" minus "free" minus "inactive" minus "cached".
@ mem.util.free Unallocated and free memory
@ mem.util.paging Memory associated with active page out operations
@ mem.util.cached Cached memory
Sum of file data pages and exec data pages.
@ mem.util.wired Wired or pinned memory that cannot be paged out
@ mem.util.active Recently accessed memory
@ mem.util.inactive Memory that is in use, but has not be accessed recently
@ mem.util.zeropages Zero filled pages
@ mem.util.pagedaemonpages Pages reserved for the pagedaemon
@ mem.util.kernelpages Pages reserved for the kernel
@ mem.util.anonpages Anonymous pages
@ mem.util.filepages Pages used for file data
@ mem.util.execpages Pages used for executable code

@ network.interface.mtu Maximum Transfer Unit for each network interface
@ network.interface.up "UP" state for each network interface
@ network.interface.baudrate Data baudrate for each network interface
@ network.interface.in.bytes Bytes received on each network interface
@ network.interface.in.packets Packets received on each network interface
@ network.interface.in.mcasts Multicast packets received on each network interface
@ network.interface.in.errors Input errors on each network interface
@ network.interface.in.drops Dropped packets on each network interface
@ network.interface.out.bytes Bytes transmitted on each network interface
@ network.interface.out.packets Packets transmitted on each network interface
@ network.interface.out.mcasts Multicast packets transmitted on each network interface
@ network.interface.out.errors Output errors on each network interface
@ network.interface.out.collisions Output collisions on each network interface
@ network.interface.total.bytes Bytes received or transmitted on each network interface
@ network.interface.total.packets Packets received or transmitted on each network interface
@ network.interface.total.mcasts Multicast packets received or transmitted on each network interface
@ network.interface.total.errors Input or output errors on each network interface
@ filesys.capacity Total capacity of mounted filesystem (Kbytes)
@ filesys.used Total space used on mounted filesystem (Kbytes)
@ filesys.free Total space free on mounted filesystem (Kbytes)
@ filesys.maxfiles Inodes capacity of mounted filesystem
@ filesys.usedfiles Number of inodes allocated on mounted filesystem
@ filesys.freefiles Number of unallocated inodes on mounted filesystem
@ filesys.mountdir File system mount point
@ filesys.full Percentage of filesystem in use
@ filesys.blocksize Size of each block on mounted filesystem (Bytes)
@ filesys.avail Total space free to non-superusers on mounted filesystem (Kbytes)
@ filesys.readonly Indicates whether a filesystem is mounted readonly

@ kernel.uname.release release level of the running kernel
Release level of the running kernel as reported via the release[]
value returned from uname(2) or uname -r.

See also pmda.uname.

@ kernel.uname.version version level (build number) and build date of the running kernel
Version level of the running kernel as reported by the version[]
value returned from uname(2) or uname -v.  Usually a NetBSD release
number.

See also pmda.uname.
@ kernel.uname.sysname name of the implementation of the operating system
Name of the implementation of the running operating system as reported
by the sysname[] value returned from uname(2) or uname -s.  Usually
"NetBSD".

See also pmda.uname.
@ kernel.uname.machine name of the hardware type the system is running on
Name of the hardware type the system is running on as reported by
the machine[] value returned from uname(2) or uname -m, e.g. "i686".

See also pmda.uname.
@ kernel.uname.nodename host name of this node on the network
Name of this node on the network as reported by the nodename[]
value returned from uname(2) or uname -n.  Usually a synonym for
the host name.

See also pmda.uname.
@ kernel.uname.distro NetBSD distribution name
An alias for kernel.uname.version.
@ pmda.uname identity and type of current system
Identity and type of current system.  The concatenation of the values
returned from utsname(2), also similar to uname -a.

See also the kernel.uname.* metrics
@ pmda.version build version of NetBSD PMDA
