Cloud

Saving Cash by Using Less Cache

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Executive Summary

With the advent of cloud computing, web service providers have the ability to dynamically scale their computing infrastructures to match demand. Further, because cloud resources are often priced per-use, web service providers have a monetary incentive to minimize the number of resources consumed while still meeting the Service Level Agreements (SLAs) of the service. Everyone loves a large caching tier in their multitier cloud-based web service because it both alleviates database load and provides lower request latencies. Even when load drops severely, administrators are reluctant to scale down their caching tier.

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