bvaisvil/zenith

Zenith is a terminal user interface system monitor that displays CPU, GPU, network, and disk usage through zoomable charts.

The tool addresses the need for a more visual alternative to traditional command-line monitors like top or htop. It renders real-time performance metrics as interactive charts within the terminal, allowing users to zoom into specific time ranges and scroll backward through historical data. The interface highlights the top consumers of system resources and provides a filterable process table that includes per-process disk usage alongside traditional metrics. Users can manage processes directly through signal handling and adjust process priorities from within the interface.

Zenith suits developers and system administrators who prefer terminal-based workflows but want richer visual feedback than text-only tools provide. It works on Linux and macOS. The project includes optional NVIDIA GPU monitoring when built with the nvidia feature flag, and on Linux with root permissions it can access delay accounting data for more detailed process metrics. Battery status, NIC IP addresses, and CPU frequency information are also displayed. The tool persists performance data between runs, allowing trend analysis over time.

Development shows consistent activity with regular feature additions and platform support expansion. The project maintains a clear roadmap including planned features like CPU steal percentage tracking, sensor temperature charts, per-process network usage on Linux, and support for AMD GPUs. Future platform targets include BSD variants. The codebase is written in Rust and requires Rust 1.40 or later plus libclang development packages to build. Installation options span multiple package managers and direct binary downloads, with Arch Linux and Debian-based distributions receiving particular packaging attention.