Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. It was a great privilege. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Adrian Cockcroft

JANUARY 20, 2023

Clouds using Ethernet that are multipath optimized using libfabric and features like EFA on AWS are going to be increasingly competitive, and Ethernet will replace other interconnects between racks. AWS has invested in optimizing Ethernet for HPC via the Elastic Fabric Adaptor (EFA) option, and the l ibfabric library.

Architecture 52

Architecture Latency Benchmarking AWS 52