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1RMA Key Idea #2: Explicitly-Finite NIC Resource Pools
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SIGCOMM 2020: 1RMA: Re-envisioning Remote Memory Access for Multi-Tenant Datacenters
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- 1 1RMA: Re-envisioning Remote Memory Access for Multi-tenant Datacenters
- 2 Problem Statement RDMA is an attractive option for modern datacenter applications due to its low latency and high throughput benefits
- 3 Pathologies due to Connections Address connection scalability and performance issues via connection sharing - Multiplexing independent workloads on the same connection
- 4 Connection-centric Security
- 5 Rigid Congestion Control and Loss Recovery
- 6 RDMA Challenges: Root Causes
- 7 1RMA Approach Judicious division of labor between hardware and software leading to a simple and fixed-function 1RMA NIC aided by 1RMA software
- 8 1RMA Key Idea #1: Connection-Free Independent Ops 1RMA NIC acts on fixed-sized ops and treats them independently
- 9 1RMA Key Idea #2: Explicitly-Finite NIC Resource Pools
- 10 1RMA Key Idea #3: Solicitation
- 11 1RMA Key Idea #5: First-class Support for Security Ops 1RMA offers a Rekey op that provides support for encryption key rotation
- 12 What role does local congestion reaction play?
- 13 Summary
