Evisum – Enlightenment system monitor

Evisum is a graphical system and process monitor built using the Enlightenment Foundation Libraries (EFL).

Its interface has a distinctive appearance inspired by desktop applications from the 1990s. It provides separate views for examining different aspects of a computer’s activity, allowing users to investigate resource consumption and identify processes responsible for heavy workloads.

Evisum uses the Enigmatic monitoring backend, which collects system information through a background daemon. Rather than having each monitoring window poll the operating system independently, the application receives updates from a shared data stream. This architecture also makes it possible to examine previously recorded system activity.

The software can operate independently of the Enlightenment desktop environment. It also provides a client library that developers can use to access the same monitoring information in their own applications.

This is free and open source software.

Key Features

• Displays running processes with their PID, user, CPU usage, memory consumption, priority, state and thread count.
• Provides controls for stopping and terminating processes.
• Supports hierarchical process views and navigation between parent and child processes.
• Monitors CPU utilisation with graphical visualisations.
• Displays memory consumption and system memory statistics.
• Tracks network activity, including incoming and outgoing traffic.
• Shows per-process network transfer information on Linux.
• Monitors storage usage and disk read/write activity.
• Displays available hardware sensor readings, including temperatures.
• Provides battery and power information where supported.
• Uses the Enigmatic daemon to collect system statistics and record structured events.
• Supports historical snapshots for examining previously recorded system activity.
• Synchronises multiple monitoring windows using a shared background update mechanism.
• Offers configurable monitoring intervals and graphical display options.
• Allows process-list columns to be resized and reordered, retaining layout preferences.
• Provides command-line options for opening individual monitoring views or inspecting a specified process.
• Exposes monitoring data through the libenigmatic_client library for use by other applications.
• Cross-platform support – runs on Linux, macOS, FreeBSD, OpenBSD and DragonFlyBSD.

Website: github.com/haxworx/evisum
Support:
Developer: Alastair Roy Poole
License: ISC License

evisum is written in C. Learn C with our recommended free books and free tutorials.

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