FIRM: An Intelligent Fine-grained Resource Management Framework for SLO-Oriented Microservices

Haoran Qiu, Subho S. Banerjee, Saurabh Jha, Zbigniew T Kalbarczyk, Ravishankar K Iyer

Research output: Chapter in Book/Report/Conference proceedingConference contribution


User-facing latency-sensitive web services include numerous distributed, intercommunicating microservices that promise to simplify software development and operation. However, multiplexing of compute resources across microservices is still challenging in production because contention for shared resources can cause latency spikes that violate the service-level objectives (SLOs) of user requests. This paper presents FIRM, an intelligent fine-grained resource management framework for predictable sharing of resources across microservices to drive up overall utilization. FIRM leverages online telemetry data and machine-learning methods to adaptively (a) detect/localize microservices that cause SLO violations, (b) identify low-level resources in contention, and (c) take actions to mitigate SLO violations via dynamic reprovisioning. Experiments across four microservice benchmarks demonstrate that FIRM reduces SLO violations by up to 16x while reducing the overall requested CPU limit by up to 62%. Moreover, FIRM improves performance predictability by reducing tail latencies by up to 11x.
Original languageEnglish (US)
Title of host publication14th USENIX Symposium on Operating Systems Design and Implementation (OSDI 20)
PublisherUSENIX Association
StatePublished - Nov 1 2020


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