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plugin_name: slabinfo.plugin
modules:
- meta:
plugin_name: slabinfo.plugin
module_name: slabinfo.plugin
monitored_instance:
name: Linux kernel SLAB allocator statistics
link: "https://kernel.org/"
categories:
- data-collection.linux-systems.kernel-metrics
icon_filename: 'linuxserver.svg'
related_resources:
integrations:
list: []
info_provided_to_referring_integrations:
description: ""
keywords:
- linux kernel
- slab
- slub
- slob
- slabinfo
most_popular: false
overview:
data_collection:
metrics_description: >
Collects metrics on kernel SLAB cache utilization to monitor the low-level performance impact of workloads
in the kernel.
method_description: "The plugin parses `/proc/slabinfo`"
supported_platforms:
include:
- Linux
exclude: []
multi_instance: false
additional_permissions:
description: >
This integration requires read access to `/proc/slabinfo`, which is accessible only to the root user by
default. Netdata uses Linux Capabilities to give the plugin access to this file. `CAP_DAC_READ_SEARCH`
is added automatically during installation. This capability allows bypassing file read permission checks
and directory read and execute permission checks. If file capabilities are not usable, then the plugin is
instead installed with the SUID bit set in permissions sVko that it runs as root.
default_behavior:
auto_detection:
description: >
Due to the large number of metrics generated by this integration, it is disabled by default and must be
manually enabled inside `/etc/netdata/netdata.conf`
limits:
description: ""
performance_impact:
description: ""
setup:
prerequisites:
list:
- title: Minimum setup
description: "If you installed `netdata` using a package manager, it is also necessary to install the package `netdata-plugin-slabinfo`."
configuration:
file:
name: "netdata.conf"
section_name: "[plugins]"
description: "The main configuration file."
options:
description: ""
folding:
title: "The main configuration file."
enabled: true
list:
- name: Enable plugin
description: As described above plugin is disabled by default, this option is used to enable plugin.
default_value: no
required: true
examples:
folding:
enabled: true
title: ""
list: []
troubleshooting:
problems:
list: []
alerts: []
metrics:
folding:
title: Metrics
enabled: false
description: "SLAB cache utilization metrics for the whole system."
availability: []
scopes:
- name: global
description: ""
labels: []
metrics:
- name: mem.slabmemory
description: Memory Usage
unit: "B"
chart_type: line
dimensions:
- name: a dimension per cache
- name: mem.slabfilling
description: Object Filling
unit: "%"
chart_type: line
dimensions:
- name: a dimension per cache
- name: mem.slabwaste
description: Memory waste
unit: "B"
chart_type: line
dimensions:
- name: a dimension per cache
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