Jeff Darcy: Evaluating Distributed File System Performance

The first part of this talk will cover general issues such as the effect of different workloads, measurement pitfalls, and common cheats used by storage vendors. The second part will introduce common tools such as fio and IOzone to measure storage performance.

In the third part, Jeff will demonstrate how to set up and test a popular distributed file systems using these tools, and how to analyze results. Most importantly, attendees will learn to recognize anomalies in their own tests, or misleading results from others', so that they can get an accurate picture of each system's capabilities and
limitations.

Bio:

Jeff Darcy has been working on distributed storage since 1989, when that meant DECnet and NFSv2. Since then he has played a significant role in the development of clustered file systems, continuous data protection, and other areas. He is currently a developer at Red Hat, with the rare opportunity to work on two open-source distributed file systems - GlusterFS and Ceph - at once.