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Monday, July 8 • 2:45pm - 3:00pm
Characterization and Prediction of Performance Interference on Mediated Passthrough GPUs for Interference-aware Scheduler

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Sharing GPUs in the cloud is cost effective and can facilitate the adoption of hardware accelerator enabled cloud. Butsharing causes interference between co-located VMs andleads to performance degradation. In this paper, we proposedan interference-aware VM scheduler at the cluster level withthe goal of minimizing interference. NVIDIA vGPU pro-vides sharing capability and high performance, but it has unique performance characteristics, which have not been studied thoroughly before. Our study reveals several key ob-servations. We leverage our observations to construct modelsbased on machine learning techniques to predict interferencebetween co-located VMs on the same GPU. We proposed a system architecture leveraging our models to schedule VMs to minimize the interference. The experiments show that our observations improves the model accuracy (by 15% ̃ 40%) and the scheduler reduces application run-time overhead by 24.2% in simulated scenarios.

Speakers
XX

Xin Xu

VMware Inc
NZ

Na Zhang

VMware Inc
MC

Michael Cui

VMware Inc
MH

Michael He

The University of Texas at Austin
RS

Ridhi Surana

VMware Inc


Monday July 8, 2019 2:45pm - 3:00pm PDT
HotCloud: Grand Ballroom VII–IX