SCONE Meeting 10-02-2023


10 February, 2023


Room G.07 (ground floor) in the Informatics Forum, University of Edinburgh.

Address: Informatics Forum, 10 Crichton Street, Edinburgh EH8 9AB, UK




Michio Honda, Luo Mai and Paul Patras


Speaker: Marios Kogias

Title: “Designing Datacenter Transports for High Throughput and Low Latency”

Abstract: Online services play a major role in our everyday life for communication, entertainment, socializing, e-commerce, etc. These services run inside datacenters under strict tail-latency service level objectives. The emergence of new hardware for IO has enabled microsecond-scale datacenter communications that challenge the efficiency of existing operating systems and network mechanisms, while new in-network programmable devices start being deployed in datacenters and introduce a new computing paradigm that shifts functionality traditionally performed at the endpoints to the network.

In this talk, I am going to focus on transport protocols for the datacenter. In the first part of the talk, I will present R2P2[ATC 2019], a transport protocol specifically designed for datacenter RPCs, that exposes the RPC abstraction to the endpoints and the network. R2P2 is specifically designed for in-network policy enforcement and makes RPCs first-class datacenter citizens. In the second part of the talk, I will show how we can transfer some of the lessons learnt from R2P2 to existing transport protocols, i.e., TCP, with CRAB[SoCC2020]. CRAB is a novel way to implement L4 load balancing which uses the load balancer only during connection establishment, just avoid the load balancer IO and CPU bottlenecks.

Bio: Marios Kogias is an Assistant Professor at Imperial College London and a visiting researcher in the Confidential Computing group at Microsoft Research Cambridge. His research focuses on operating systems and networking for the modern datacenter. His PhD thesis received the Dennis M. Ritchie Doctoral Dissertation Award, the honourable mention for the Roger Needham PhD award, and the ABB Dissertation Award. He was an IBM PhD Fellow and won the best student paper award at Eurosys 2020.


12:30-13:10 – Arrival, Lunch

13:10-13:30 –  ACP+: An Age Control Protocol For the Internet (Tanya Shreedhar, University of Edinburgh)

13:30-13:50 — Making the Internet: A Longitudinal Analysis of the IETF (Stephen McQuistin, University of Glasgow)

13:50-14:10 — Android OS Privacy Under the Loupe – A Tale from the East (Haoyu Liu, University of Edinburgh)

14:10-14:40 – SICSA Introduction (Andrei Petrovski)

14:40- 15:25 — Keynote (Marios Kogias, Imperial College London)

15:25-15:55 – Coffee break

15:55-16:15 – What really matters? Opening up kernel-bypass network stacks (Michio Honda, University of Edinburgh)

16:15-16:35 – Augmenting mmWave Localization Accuracy Through Sub-6 GHz on Off-the-Shelf Devices (Alejandro Blanco, University of Edinburgh)

16:35-16:55 – AppShot: A Conditional Deep Generative Model for Synthesizing Service-Level Mobile Traffic Snapshots at City Scale (Chuanhao Sun, University of Edinburgh)

16:55-17:00 — Closing

17:30-19:30 – Dinner at Mother India Cafe (5 min walk from the venue).