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1RMA: Re-envisioning Remote Memory Access for Multi-tenant Datacenters
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Problem Statement RDMA is an attractive option for modern datacenter applications due to its low latency and high throughput benefits
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Pathologies due to Connections Address connection scalability and performance issues via connection sharing - Multiplexing independent workloads on the same connection
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Connection-centric Security
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Rigid Congestion Control and Loss Recovery
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RDMA Challenges: Root Causes
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1RMA Approach Judicious division of labor between hardware and software leading to a simple and fixed-function 1RMA NIC aided by 1RMA software
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1RMA Key Idea #1: Connection-Free Independent Ops 1RMA NIC acts on fixed-sized ops and treats them independently
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1RMA Key Idea #2: Explicitly-Finite NIC Resource Pools
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1RMA Key Idea #3: Solicitation
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1RMA Key Idea #5: First-class Support for Security Ops 1RMA offers a Rekey op that provides support for encryption key rotation
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What role does local congestion reaction play?
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Summary
Description:
Explore a conference talk that delves into 1RMA, a novel approach to remote memory access in multi-tenant datacenters. Learn about the challenges faced by RDMA in modern datacenter applications and discover how 1RMA addresses these issues through innovative solutions. Examine key ideas such as connection-free independent operations, explicitly-finite NIC resource pools, and solicitation. Gain insights into the judicious division of labor between hardware and software, leading to a simplified and fixed-function 1RMA NIC. Understand the importance of first-class support for security operations and the role of local congestion reaction in this reimagined remote memory access system.

SIGCOMM 2020: 1RMA: Re-envisioning Remote Memory Access for Multi-Tenant Datacenters

Association for Computing Machinery (ACM)
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#Computer Science #Congestion Control
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1RMA: Re-envisioning Remote Memory Access for Multi-tenant Datacenters