bpftop is a terminal-based monitoring tool that provides real-time visibility into eBPF programs running on Linux systems. It displays comprehensive performance metrics for each program including average runtime, events per second, and estimated CPU utilization.

The tool offers interactive features that make analyzing eBPF performance straightforward. Navigate through running programs using arrow keys or vim-style navigation, sort by any column, and filter programs by name or type. When you select a specific program, bpftop generates time-series graphs showing performance trends over time, helping you identify patterns and anomalies.

Key capabilities include:

Real-time list of all running eBPF programs with ID, type, and name
Performance metrics showing period and total average runtime, events per second, and CPU usage
Interactive time-series graphs for detailed performance analysis
Flexible filtering and sorting across multiple columns
Process information including names and PIDs tied to each program
Customizable refresh rates from 1 to 3600 seconds
Minimal performance overhead by enabling statistics only while active
Support for Linux kernels 5.8 and later

Designed for SREs, platform engineers, kernel developers, and Linux performance engineers, bpftop provides the visibility needed to trace systems and analyze eBPF metrics effectively. It delivers a holistic view of all eBPF programs on your system in an intuitive, top-like interface.

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