denet, a lightweight command-line tool for process monitoring in benchmarking and beyond

Abstract: Summary: denet is a lightweight process monitoring utility providing real-time resource profiling of running processes. denet reports CPU, memory, disk I/O, network activity, and thread usage, including recursive child monitoring, with adaptive sampling rates. It offers both a command-line interface (CLI) with colorized outputs and a Python API for inclusion in other software. Its output formats are structured as either JSON, JSONL, or CSV, and include performance metrics as well as process metadata, including PID and the executed command. The easy to parse profiling results make denet suitable for benchmarking, debugging, monitoring, and optimizing data-intensive pipelines in bioinformatics and other fields. Availability and implementation: denet is open-source software released under the GPLv3 license and maintained at https://github.com/btraven00/denet. It is implemented in Rust, with Python bindings provided via maturin, and can be installed from Cargo (cargo install denet) or PyPI (pip install denet). Most functionality does not require administrative privileges, enabling use on cloud platforms, HPC clusters, and standard Linux workstations. Certain advanced features, such as eBPF support, may require elevated permissions. Documentation, including usage examples and API references, is provided.