Challenges in Defining and Measuring “Cache Hit Ratios”

Challenges in Defining and Measuring “Cache Hit Ratios”

It is Unclear if Focusing on Overall Cache Hit Ratio as a Success Metric is the Best Way to Measure Performance on a CDN

RELEASE DATE
11-Jan-2018
REGION
North America
Research Code: 9849-00-75-00-00
SKU: EM00282-GL-MR_21387
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Description

Many CDNs focus on overall cache hit rate because they do not encourage their users to cache HTML. Although a 90% cache hit rate sounds high, it is not the case when it is taken into account that the most compute-intensive 10% of elements are not cached. Developers can understand their caching and optimize it effectively only when the cache hit ratio is analyzed in terms of asset type. This results in builders and managers of web applications to more effectively understand and improve the performance, scalability, and user experience of their applications; and this is where the industry needs to head.

Table of Contents

Many CDNs focus on overall cache hit rate because they do not encourage their users to cache HTML. Although a 90% cache hit rate sounds high, it is not the case when it is taken into account that the most compute-intensive 10% of elements are not cached. Developers can understand their caching and optimize it effectively only when the cache hit ratio is analyzed in terms of asset type. This results in builders and managers of web applications to more effectively understand and improve the performance, scalability, and user experience of their applications; and this is where the industry needs to head.
More Information
No Index No
Podcast No
Author Dan Rayburn
Industries Entertainment and Media
WIP Number 9849-00-75-00-00
Is Prebook No