This section provides more details and platform-specific information on the parameters of the vm.memory.size[<mode>]
agent item.
The following parameters are available for this item:
available
/total
*100)used
/total
*100)Platform-specific calculation of available and used:
Platform | “available” | “used” |
---|---|---|
AIX | free + cached | real memory in use |
FreeBSD | inactive + cached + free | active + wired + cached |
HP UX | free | total - free |
Linux<3.14 | free + buffers + cached | total - free |
Linux 3.14+ (also backported to 3.10 on RHEL 7) | /proc/meminfo, see "MemAvailable" in Linux kernel documentation for details. Note that free + buffers + cached is no longer equal to 'available' due to not all the page cache can be freed and low watermark being used in calculation. | total - free |
NetBSD | inactive + execpages + file + free | total - free |
OpenBSD | inactive + free + cached | active + wired |
OSX | inactive + free | active + wired |
Solaris | free | total - free |
Win32 | free | total - free |
See the "See also" section at the bottom of this page to find more detailed information about memory calculation in different OS.