Delta Compression Caching for Dynamic Web Page Latency
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Solution Overview
Problem
Current caching models for HTTP are inadequate in handling dynamic and personalized web pages, leading to inefficiencies due to varying latency across multiple servers and the failure to manage complex web content effectively.
Innovation Solution
A system comprising a user agent, client device, optimization server, and content servers that employs delta compression and block encoding methods to optimize data transfer by using a data cache, key cache, and block cache to store and match key data, reducing the need for redundant data transfers and improving web page loading speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current caching models are used for HTTP, then web page content can be stored and retrieved, but they fail to handle dynamic and personalized web pages effectively, leading to inefficiencies
Solution Approach 1:
The patent segments web page content into multiple blocks and creates separate cache entries for each block rather than treating the entire page as a single unit. This segmentation allows the system to efficiently handle dynamic portions of web pages by caching only the static blocks, thereby improving adaptability to personalized content while maintaining high productivity through reduced data transfer of redundant static content.
2Reliability
If hundreds of objects are downloaded from multiple servers to display a web page, then complete web page content can be retrieved, but varying latency across servers increases loading time
Solution Approach 1:
The patent implements preliminary action by caching static blocks of web page content in advance at the user agent or intermediary server. When a user requests a web page, previously cached static blocks are immediately available and do not need to be re-downloaded from multiple servers, thereby reducing loading time while ensuring complete content is still delivered by filling in the dynamic portions.
3Adaptability or versatility
If redundant data is transferred repeatedly to update web pages, then dynamic content can be delivered, but bandwidth is wasted and transfer efficiency decreases
Solution Approach 1:
The patent extracts and caches only the static blocks of web page content separately from dynamic content. By taking out the static portions that remain unchanged across multiple page versions and caching them independently, the system eliminates redundant data transfer of static content while still delivering updated dynamic content, thereby reducing bandwidth consumption without sacrificing the ability to deliver dynamic content.
Data Source
AI summary
A method and system for providing delta compression, the method includes receiving request data from a user agent, communicating with a content server, wherein the communication includes transmitting the request data to the content server and receiving response data associated with the request data, generating key data associated with the response data, wherein the generated key data represents block data of the response data, storing the generated key data and the block data, and transmitting the block data to the user agent.