IO Schedulers and NVMe Disk Modeling

Join ScyllaDB engineer Pavel Emelyanov who will provide a walkthrough of Diskplorer, an open-source disk latency/bandwidth exploring toolset to measure behavior under load. By using Linux fio under the hood Diskplorer runs a battery of measurements to discover performance characteristics for a specific hardware configuration, giving you an at-a-glance view of how server storage I/O will behave under load.

Discover how ScyllaDB uses this elaborated model of disk performance, as well as a scheduling algorithm developed for the Seastar framework to build latency-oriented I/O scheduling that cherry-picks requests from the incoming queue keeping the disk load perfectly balanced.