Library Operating System Compatibility via OS Personality Extraction
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Solution Overview
Problem
Maintaining application compatibility across different operating system versions is challenging, as updates often break applications, and existing solutions like virtual machines incur significant performance and resource overhead.
Innovation Solution
The use of library operating systems, which encapsulate portions of the operating system likely to cause compatibility issues, allowing applications to run on top of a host operating system, enabling backward and forward compatibility by binding applications to compatible library OS versions, thus reducing overhead and enabling multiple applications to run on different OS versions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If virtual machines are used to maintain application compatibility across OS versions, then application compatibility is improved, but performance and resource overhead increase significantly
Solution Approach 1:
The patent extracts only the necessary OS personality components (libraries implementing APIs and application-visible semantics) from a full operating system, rather than running entire OS instances in virtual machines. This extraction allows applications to run with their required OS version while avoiding the heavy overhead of complete OS virtualization, thus maintaining compatibility while reducing resource consumption.
Solution Approach 2:
The patent segments the operating system into a host OS and separate OS personality libraries that can be independently selected and bound to applications. This segmentation allows each application to use the specific OS version it requires without running a full virtualized OS, reducing overall system resource overhead while maintaining application compatibility.
2Reliability
If full operating systems are virtualized to support multiple applications, then application compatibility is improved, but device complexity increases
Solution Approach 1:
The patent extracts only the essential OS personality components (API implementations and application-visible semantics) needed for compatibility, rather than virtualizing entire operating systems. This reduces system complexity by eliminating redundant OS components while maintaining the compatibility required for running applications across different OS versions.
3Loss of energy
If library operating systems are used to reduce overhead, then resource consumption is reduced, but maintaining compatibility across OS versions becomes challenging
Solution Approach 1:
The patent creates a universal host operating system that can bind multiple different OS personality libraries to different applications. The host OS provides a universal interface while supporting multiple OS versions through library binding, allowing a single system to serve multiple applications with different OS requirements without requiring separate OS instances for each.
Solution Approach 2:
The host operating system acts as an intermediary between applications and the actual OS implementation libraries. It provides the binding mechanism that connects applications to their required OS version libraries, mediating between the application's compatibility requirements and the available library implementations, thus ensuring compatibility while maintaining low resource overhead.
Data Source
AI summary
Application compatibility is facilitated by use of library operating systems. Library operating systems can encapsulate portions of an application likely to break application compatibility. An application can be bound to a compatible library operating system that operates over a host operating system. Furthermore, library operating system version can be greater than, equal, or less than the version of the host operating system. Consequently, both backward and forward compatibility is enabled.