Asynchronous Content Pre-fetching to Reduce Page Rendering Latency
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Solution Overview
Problem
Dynamic network pages often experience delayed rendering due to asynchronous content that takes a long time to process, leading to user frustration as the content is typically loaded synchronously, which can result in an incomplete page being rendered initially.
Innovation Solution
Implementing a pre-fetching mechanism at the network page server to cache asynchronous content before receiving a callback from the client, allowing for faster rendering of the page by reducing latency and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If asynchronous content is loaded synchronously, then the content can be fully processed and rendered, but the page rendering is delayed and user access is frustrated
Solution Approach 1:
The system pre-fetches asynchronous content in advance before the client actually needs it, by detecting asynchronous content markers in the network page and proactively requesting the content from services. This preliminary action allows the content to be ready when needed, eliminating rendering delays while maintaining processing completeness.
Solution Approach 2:
The content loading process is segmented into synchronous page rendering and asynchronous content loading. The network page is divided into synchronous content (rendered immediately) and asynchronous content (loaded separately via callbacks), allowing the page to be accessed partially while complete content loads in the background.
2Loss of time
If asynchronous content is loaded asynchronously, then the page can be rendered quickly, but the content may not be ready when needed causing incomplete page display
Solution Approach 1:
The system performs preliminary action by pre-fetching asynchronous content before the client's asynchronous callback occurs. The server detects the need for asynchronous content and proactively requests it from services, ensuring the content is ready when the client needs it, thus maintaining both speed and reliability.
3Productivity
If pre-fetching is implemented, then content can be cached and rendering speed improves, but additional server processing and caching mechanisms are required
Solution Approach 1:
The server implements preliminary action by automatically detecting asynchronous content markers in network pages and proactively pre-fetching content before callbacks occur. This automation reduces the need for complex manual caching mechanisms while improving rendering speed through automated content preparation.
Solution Approach 2:
The system employs self-service mechanisms where the server automatically detects and handles asynchronous content requirements without extensive manual intervention. The pre-fetching mechanism operates autonomously based on content markers, reducing operational complexity while maintaining high productivity.
Data Source
AI summary
Disclosed are various embodiments for pre-fetching data from a service in advance of obtaining an asynchronous callback for the data from a client. It is determined whether a network page requested by a client is configured to prompt the client to initiate an asynchronous callback for data that may be pre-fetched. The data is pre-fetched from a service before obtaining the asynchronous callback for the data from the client. The data that has been pre-fetched from the service is sent to the client in response to obtaining the asynchronous callback for the data from the client.