Tania Lorido Botran
ABSTRACT
Roblox Metaverse supports an impressive 55M daily users. The underlying infrastructure is geographically distributed, with multiple edge data centers in all continents. The Meta-verse stack consists of multiple layers of software systems, with complex dependencies that can be represented as a DAG (Directed Acyclic Graph) or a multi-layered queueing system. In short, the concept of Metastability happens when each moving part of the stack works in harmony. In contrast, a Metastable failure results from a trigger originating in some part of the stack that cascades through multiple dependencies to finally affect a third-party system. Such kind of failure has large-scale consequences and can deem the overall stack unusable. The present talk will deep-dive in the characterization (or absence) of metastability based on a queueing theory model and analyze the dynamics that can lead to different flavors of system-wide failures. Furthermore, the model will be used as the basis to (mathematically) devise measures for the early detection of failures and explore fault-tolerance measures that ensure metastability.
Index Terms
- Metastability in the Metaverse
Recommendations
Analysis of Synchronizer, Data Loss and Occurrence of Metastability
ICESC '14: Proceedings of the 2014 International Conference on Electronic Systems, Signal Processing and Computing TechnologiesThe many applications consist of multiple clock domains. There is data transfer between these clock domain systems. Due to different frequencies between sender and receiver there is data loss. Synchronizer is used for data synchronization. Synchronizer ...
Performance Analysis of Synchronizer and Measurement of Metastability
ICCUBEA '15: Proceedings of the 2015 International Conference on Computing Communication Control and AutomationThere are so many applications which require more than one clock for their application. The transmitter works on one clock frequency and the receiver may work on another frequency. Due to this difference in frequencies between the transmitter and ...
Measuring deep metastability and its effect on synchronizer performance
Present measurement techniques do not allow synchronizer reliability to be measured in the region of most interest, that is, beyond the first half cycle of the synchronizer clock. We describe methods of extending the measurement range, in which the ...
Comments