Perf8 is a tool designed for performance tracking in Python applications, particularly those that ingest data into Elasticsearch from various sources. This process often involves I/O-bound activities, necessitating careful management of resources like RAM and CPU to prevent system overloads while maximizing output. Perf8 aims to standardize performance testing across different teams by providing a unified command-line interface, similar to the successful Flake8 tool, which Tarek Ziadé developed previously. The tool integrates various performance measurement tools, such as Memray and py-spy, and produces unified, self-contained HTML reports that can be easily shared and automated. This open-source project, supported by Elastic, encourages community contributions to expand its functionality and adapt to evolving performance testing needs.