# OSProfiler – Cross-project profiling library

OSProfiler provides a tiny but powerful library that is used by most (soon to be all) OpenStack projects and their python clients. It provides functionality to generate 1 trace per request, that goes through all involved services. This trace can then be extracted and used to build a tree of calls which can be quite handy for a variety of reasons (for example in isolating cross-project performance issues).

- Using OSProfiler
  - Background
  - API
  - Integration
  - Collectors
  - Similar projects
  - Release Notes

Indices and tables

- Index

- Module Index

- Search Page

this page last updated: 2026-03-27 00:00:00

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