  The service provided by content delivery networks (CDNs) may overlook content
locality, leaving room for potential performance improvement. In this study, we
explore the feasibility of leveraging generated data as a replacement for
fetching data in missing scenarios based on content locality. Due to sufficient
local computing resources and reliable generation efficiency, we propose a
content-oriented generative-hit framework (CoGenT) for CDNs. CoGenT utilizes
idle computing resources on edge nodes to generate requested data based on
similar or related cached data to achieve hits. Our implementation in a
real-world system demonstrates that CoGenT reduces the average access latency
by half. Additionally, experiments conducted on a simulator also confirm that
CoGenT can enhance existing caching algorithms, resulting in reduced latency
and bandwidth usage.
