Below: A time travelling resource monitoring tool
Facebook's resource control team introduces "below," a new Linux system monitoring tool addressing existing tool deficiencies. It offers user-friendly features, historical data recording, process navigation, and compatibility across kernels.
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A new resource monitoring tool called "below" has been introduced by Facebook's resource control team for modern Linux systems. It is designed to view and record historical Linux system data, addressing deficiencies found in existing tools like atop. "below" offers features such as ease of use, opinionated statistics, and flexibility for customization. It allows users to replay recorded data, navigate through system overviews, and zoom into specific processes within cgroups. The tool ensures compatibility between kernels and versions, uses efficient data compression techniques, and supports live mode and a dump interface for data analysis. With a focus on user experience and system visibility, "below" aims to provide an interactive and easy-to-use system monitoring solution. Users are encouraged to provide feedback and suggestions for further improvements on the Github issue tracker.
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