Programming Emerging Storage Interfaces

Explore the evolution of NVMe storage interfaces and learn how to program them effectively in this 35-minute conference talk from USENIX Vault '20. Dive into the standardization of Key-Value (KV) and Zoned (ZNS) namespaces, and discover the challenges posed by modern I/O submission APIs. Gain insights into xNVMe, a user-space library designed to address memory constraints and simplify I/O submission. Examine the library's design, architecture, and integration process, and evaluate its impact on I/O performance. Cover topics such as Command Response Protocol, IOU Ring limitations, unified APIs, command interfaces, and various command sets. Understand how these emerging storage interfaces are shaping the future of data storage and access.

Intro
Command Response Protocol
NVME
New Devices
IOU Ring
IOU Ring Limitations
AI Axles
NVME Axles
Linux
PDK
Unified API
Geometry
API
Buff
Buffer
Command Interface
Command Encapsulation
Command Completion
Request Object
Example
Cost
Latency
Nanosecond
Easy API
Command Sets