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- name: memory
type: group
description: >
`memory` contains local memory stats.
release: ga
fields:
- name: total
type: long
format: bytes
description: >
Total memory.
- name: used.bytes
type: long
format: bytes
description: >
Used memory.
- name: free
type: long
format: bytes
description: >
The total amount of free memory in bytes. This value does not include memory consumed by system caches and
buffers (see system.memory.actual.free).
- name: used.pct
type: scaled_float
format: percent
description: >
The percentage of used memory.
- name: actual
type: group
description: >
Actual memory used and free.
fields:
- name: used.bytes
type: long
format: bytes
description: >
Actual used memory in bytes. It represents the difference between the total and the available memory. The
available memory depends on the OS. For more details, please check `system.actual.free`.
- name: free
type: long
format: bytes
description: >
Actual free memory in bytes. It is calculated based on the OS. On Linux it consists of the free memory
plus caches and buffers. On OSX it is a sum of free memory and the inactive memory. On Windows, it is equal
to `system.memory.free`.
- name: used.pct
type: scaled_float
format: percent
description: >
The percentage of actual used memory.
- name: swap
type: group
prefix: "[float]"
description: This group contains statistics related to the swap memory usage on the system.
fields:
- name: total
type: long
format: bytes
description: >
Total swap memory.
- name: used.bytes
type: long
format: bytes
description: >
Used swap memory.
- name: free
type: long
format: bytes
description: >
Available swap memory.
- name: out.pages
type: long
description: count of pages swapped out
- name: in.pages
type: long
description: count of pages swapped in
- name: readahead.pages
type: long
description: swap readahead pages
- name: readahead.cached
type: long
description: swap readahead cache hits
- name: used.pct
type: scaled_float
format: percent
description: >
The percentage of used swap memory.
- name: hugepages
type: group
prefix: "[float]"
description: This group contains statistics related to huge pages usage on the system.
fields:
- name: total
type: long
format: number
description: >
Number of huge pages in the pool.
- name: used.bytes
type: long
format: bytes
description: >
Memory used in allocated huge pages.
- name: used.pct
type: long
format: percent
description: >
Percentage of huge pages used.
- name: free
type: long
format: number
description: >
Number of available huge pages in the pool.
- name: reserved
type: long
format: number
description: >
Number of reserved but not allocated huge pages in the pool.
- name: surplus
type: long
format: number
description: >
Number of overcommited huge pages.
- name: default_size
type: long
format: bytes
description: >
Default size for huge pages.
- name: swap.out
type: group
description: huge pages swapped out
fields:
- name: pages
type: long
description: pages swapped out
- name: fallback
type: long
description: Count of huge pages that must be split before swapout
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