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Diffstat (limited to 'collectors/slabinfo.plugin/README.md')
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1 files changed, 1 insertions, 36 deletions
diff --git a/collectors/slabinfo.plugin/README.md b/collectors/slabinfo.plugin/README.md index abcbe1e3f..4d4629a77 100644..120000 --- a/collectors/slabinfo.plugin/README.md +++ b/collectors/slabinfo.plugin/README.md @@ -1,36 +1 @@ -<!-- -title: "slabinfo.plugin" -custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/slabinfo.plugin/README.md" -sidebar_label: "slabinfo.plugin" -learn_status: "Published" -learn_topic_type: "References" -learn_rel_path: "Integrations/Monitor/System metrics" ---> - -# slabinfo.plugin - -SLAB is a cache mechanism used by the Kernel to avoid fragmentation. - -Each internal structure (process, file descriptor, inode...) is stored within a SLAB. - -## configuring Netdata for slabinfo - -The plugin is disabled by default because it collects and displays a huge amount of metrics. -To enable it set `slabinfo = yes` in the `plugins` section of the `netdata.conf` configuration file. - -If you are using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), you will additionally need to install the `netdata-plugin-slabinfo` -package using your system package manager. - -There is currently no configuration needed for the plugin itself. - -As `/proc/slabinfo` is only readable by root, this plugin is setuid root. - -## For what use - -This slabinfo details allows to have clues on actions done on your system. -In the following screenshot, you can clearly see a `find` done on a ext4 filesystem (the number of `ext4_inode_cache` & `dentry` are rising fast), and a few seconds later, an admin issued a `echo 3 > /proc/sys/vm/drop_cached` as their count dropped. - - - - - +integrations/linux_kernel_slab_allocator_statistics.md
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