SREcon24 Europe/Middle East/Africa

Monica Baluna and Ehab Tawfik, Bloomberg


One of Bloomberg's flagship products, Instant Bloomberg (IB), is used by financial professionals around the globe for instant messaging. This system is powered by a multitude of microservices, databases and UIs that interact through synchronous or asynchronous API calls and queueing mechanisms.

We recently released Forums in IB. This new form of group chat introduced exciting features. With our clients needing increasingly larger group chats, we took the opportunity to ask how to make sure the new system and the existing one can scale up with the extra load without affecting the existing user workflows.

This talk explores the different load testing strategies we adopted while enabling support for chats ten times larger than before, while also migrating existing group chats to become Forums. We will focus on two elements: (i) creating a realistic representation of production traffic in a test environment, and (ii) how to efficiently gather insightful metrics.


https://www.usenix.org/conference/srecon24emea/presentation/baluna