Goals
Initial goals of the Performance and Scalability group:
Document the current performance of targeted operations in Fedora 4 (creating binaries of various sizes, creating and updating containers)
Identify performance bottlenecks to inform future development
Identify performance changes over time with infrastructure updates (e.g., the upgrade to Modeshape 5)
Current Work
Creating testing scenarios for common operations: Performance and Scalability Test Plans
Creating small files
Creating large files
Creating empty containers
Creating containers with RDF properties
Creating JMeter test plans to test scenarios in a reproducible way: https://github.com/fcrepo4-labs/fcrepo4-jmeter
Periodic checks of small-scale CRUD operations to check the health of the repository as the test progresses
Clearly defined failure criteria
Command-line options to run different scenarios and fine-tune test parameters
Running several of the tests by several different institutions, including repeated tests with different storage backends (LevelDB vs. PostgreSQL) or other relevant options:
Future Work
Have multiple institutions run all of the identified tests with Fedora 4.5.1 to provide a solid baseline measurement of current performance.
Repeat the same tests with a Modeshape 5 branch to compare performance of the new version of Modeshape.
- Run tests with profiling enabled to gather information most relevant to identifying and addressing performance bottlenecks in Fedora code.
