Splunk Add-on for Linux allows Splunk to collect Linux-related performance metrics and data generated by the open source CollectD project using HTTP Event Collector (HEC) or Transmission Control Protocol (TCP). The Splunk Add-on for Linux collects the following types of data: CPU metrics Memory metrics Swap metrics Mount point and file system usage Network interface traffic Disk utilization System load Process information Network protocol information IRQ metrics TCP connections information Thermal information System uptime statistics