Network Support For Scalable And High Performance Cloud Exchanges
Muhammad Haseeb, Jinkun Geng, Daniel Duclos-Cavalcanti, Xiyu Hao, Ulysses Butler, Radhika Mittal, Srinivas Narayana, and Anirudh Sivaraman
In Proceedings of the ACM SIGCOMM 2025 Conference, São Francisco Convent, Coimbra, Portugal, 2025
Financial exchanges are migrating to the public cloud, but the best-effort nature of the cloud fabric is at odds with the stringent networking requirements of the exchanges. We present Onyx, a system for meeting such requirements which uses many well-studied techniques in a new context as well as introduces new techniques that enable a scalable cloud financial exchange. An overlay multicast tree is used to disseminate data to 1000 participants with ≤ 1 μs difference in data reception time between any two participants, crucial for maintaining fair competition. Several techniques for mitigating latency variance are introduced. Onyx also presents a scheduling policy for trade orders that enhances an exchange’s performance and gracefully services bursty traffic. Onyx achieves ≈50% lower latency than the AWS multicast service [1]. Onyx outperforms an existing system, CloudEx [2] in terms of supported number of participants, exchange’s throughput and multicast latency. Onyx’s techniques can be applied to other existing systems (e.g., DBO) to enhance their performance.
