Tools Research Projects

I/O workload Characterization Related Projects 

Thorough understanding of I/O workload characteristics is the key to overall system performance improvement and maximum utilization of available system resources. I/O workload characterization can be carried out at different system levels such as disk I/O level, file system level and application level. Accurate workload modeling at these layers is important due to the following reasons. First, suitable caching policies at both device level and file system level can be carried out to better serve application I/Os. Second, realistic system testing tool and synthetic workload generators can be developed base d on the workload models, instead of the rigid benchmark tools. Third, workload modeling and characterization can shed light on storage architecture as well as storage device designs. 

Currently there are three projects that are on-going in CRIS, which are respectively

1. Reproduce Cache Behavior in Synthetic Disk I/O Workload
2. Exascale I/O and Parallel File System I/O Workload Characterization 
3. High Fidelity Disk I/O Workload Replayer

You can learn more about the project here.