Zabbix Documentation 4.2

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manual:appendix:items:vm.memory.size_params

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manual:appendix:items:vm.memory.size_params [2018/01/29 07:41]
viktors.tjarve added "slab" memory description
manual:appendix:items:vm.memory.size_params [2019/02/25 08:41] (current)
martins-v 'cached' is also counted into available for linux <3.14
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 === Parameters === === Parameters ===
  
-The following parameters are possible ​for this item:+The following parameters are available ​for this item:
  
   * **active** - memory currently in use or very recently used, and so it is in RAM   * **active** - memory currently in use or very recently used, and so it is in RAM
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   * **used** - used memory, calculated differently depending on the platform (see the table below)   * **used** - used memory, calculated differently depending on the platform (see the table below)
   * **wired** - memory that is marked to always stay in RAM. It is never moved to disk.   * **wired** - memory that is marked to always stay in RAM. It is never moved to disk.
 +
 +<note important>​Some of these parameters are platform-specific and might not be available on your platform. Please refer to [[:​manual/​appendix/​items/​supported_by_platform|this page]] for details.</​note>​
  
 Platform-specific calculation of **available** and **used**: Platform-specific calculation of **available** and **used**:
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 |//​FreeBSD// ​    ​|inactive + cached + free |active + wired + cached ​ | |//​FreeBSD// ​    ​|inactive + cached + free |active + wired + cached ​ |
 |//HP UX//       ​|free |total - free  | |//HP UX//       ​|free |total - free  |
-|//​Linux<​3.14//​ |free + buffers |total - free  |+|//​Linux<​3.14//​ |free + buffers ​+ cached |total - free  |
 |//Linux 3.14+// |/​proc/​meminfo,​ "​Cached":​+"​MemAvailable:"​ |total - free  | |//Linux 3.14+// |/​proc/​meminfo,​ "​Cached":​+"​MemAvailable:"​ |total - free  |
 |//​NetBSD// ​     |inactive + execpages + file + free |total - free  | |//​NetBSD// ​     |inactive + execpages + file + free |total - free  |