Concurrent Element Loading With GC-Compatible Memory Mapping
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Solution Overview
Problem
Garbage collection processes in object-oriented computing systems are incompatible with existing shared data loading techniques like CDS, leading to issues with dynamically modifying references and memory layouts, which affects memory management and efficiency.
Innovation Solution
A system loads elements on a background data area following a pre-arranged sequence using background and runtime data threads, allowing for lazy loading and dynamic mapping, while utilizing a reference table to manage memory layouts compatible with various garbage collection processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shared data loading techniques like CDS are used to reduce memory footprint and improve class loading speed, then memory efficiency and productivity are improved, but compatibility with garbage collection processes that dynamically modify references and memory layouts deteriorates
Solution Approach 1:
The patent applies dynamics by making the memory layout adaptive rather than static. The system dynamically adjusts the memory layout based on the garbage collection process being used, allowing the shared data loading mechanism to work compatible with different GC processes that modify references and memory layouts dynamically.
Solution Approach 2:
The patent changes the parameters of the memory layout to be compatible with different garbage collection processes. By adjusting memory layout parameters dynamically based on the GC process configuration, the system maintains compatibility while preserving the benefits of shared data loading.
2Quantity of substance
If static memory layout with consistent memory mapping is used to enable shared data loading, then memory footprint is reduced, but ability to dynamically modify references and memory layouts deteriorates
Solution Approach 1:
The patent transforms the static memory layout into a dynamic one that can adapt to different garbage collection processes. The system determines the memory layout based on the GC process configuration, enabling dynamic modification of references and memory layouts while maintaining efficient memory usage.
Solution Approach 2:
The patent creates a universal memory layout determination mechanism that works with multiple garbage collection processes. By making the memory layout determination universal and adaptable to different GC processes, the system achieves both memory efficiency and dynamic modification capability.
3Productivity
If memory addresses are kept consistent across instances for shared archive mapping, then shared data loading efficiency is improved, but compatibility with garbage collection processes that modify memory addresses deteriorates
Solution Approach 1:
The patent changes the memory address parameters dynamically based on the garbage collection process configuration. Instead of keeping memory addresses consistent across all instances, the system adjusts address parameters to match the specific GC process being used, ensuring both loading efficiency and reference integrity.
Solution Approach 2:
The patent makes the memory address assignment dynamic rather than static. The system determines appropriate memory addresses based on the GC process configuration, allowing references to remain intact while adapting to different memory management strategies used by various garbage collection processes.
Data Source
AI summary
A system executes a first thread to load a first set of elements on a background data area, and concurrently while executing the first thread, the system executes a second thread to load the first set of elements on a runtime data area. The background data area and the runtime data area are implemented on separate memory regions. The first thread loads a first subset of elements of the first set of elements on the background data area concurrently, while the second thread loads a second subset of elements of the first set of elements on the runtime data area.