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Diffstat (limited to 'collectors/slabinfo.plugin/README.md')
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diff --git a/collectors/slabinfo.plugin/README.md b/collectors/slabinfo.plugin/README.md new file mode 100644 index 000000000..e21802397 --- /dev/null +++ b/collectors/slabinfo.plugin/README.md @@ -0,0 +1,22 @@ +# 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 + +There is currently no configuration needed. + +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. + + + + +[](<>) |