Virtualization

Timing Failures Caused by Resource Starvation in Virtual Machinesa

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Executive Summary

This paper discusses cascading effects of resource starvation in virtual machines, and how that affects end-user experiences in certain cases. The paper presents the occurring issues on an N-tier server system, and the way the starvation causes unexpected delays in a service for an end-user. The initial observations were on unexpected communication delays, and by using a simplified test system, this behavior can be confirmed. The delays can trace back to memory management in the individual servers, causing the timing failures.

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