Context-Based Lock Management for Multi-Threaded Performance
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Solution Overview
Problem
In multi-threaded execution environments, existing lock acquisition scheduling techniques fail to consider whether locks are actually needed in the context of thread execution, leading to performance issues due to unnecessary wait times and lock redundancy.
Innovation Solution
A context-based lock condition is determined through runtime analysis, incorporating a lock redundancy component and an execution context component, allowing requests to acquire locks only when both components are satisfied, thereby bypassing unnecessary lock acquisition and reducing wait times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional lock acquisition scheduling techniques are used, then thread safety is maintained, but system performance deteriorates due to unnecessary wait times and lock redundancy
Solution Approach 1:
The patent changes the parameter of lock acquisition by introducing context-based conditions that evaluate whether a lock is actually needed before granting acquisition. This dynamic parameter change allows the system to bypass unnecessary lock acquisitions, reducing wait time while maintaining thread safety when locks are genuinely required.
Solution Approach 2:
The lock management system performs self-service by automatically analyzing the execution context and determining whether lock acquisition is necessary. The system monitors thread execution states, shared resource access patterns, and lock redundancy conditions to make autonomous decisions about grant or deny lock requests, eliminating the need for threads to always wait for lock acquisition.
2Reliability
If locks are acquired for all shared resources, then thread safety is ensured, but execution efficiency decreases due to unnecessary lock overhead
Solution Approach 1:
The patent applies local quality by making lock acquisition decisions specific to each execution context rather than applying a universal lock-all approach. The context-based lock condition evaluates local factors such as the current thread's execution state, the specific shared resource being accessed, and whether other locks are already held that provide equivalent protection. This localized evaluation ensures thread safety only where actually needed, improving execution efficiency.
3Productivity
If runtime analysis is performed to identify context-based lock conditions, then lock usage is optimized, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by performing runtime analysis to identify context-based lock conditions before actual lock acquisition decisions are made. The system pre-evaluates execution contexts, analyzes shared resource access patterns, and establishes lock redundancy conditions in advance. This preliminary analysis creates a foundation for rapid lock decision-making during execution, optimizing lock usage while managing complexity through structured pre-computation.
Data Source
AI summary
Systems and methods of enhancing computing performance may provide for detecting a request to acquire a lock associated with a shared resource in a multi-threaded execution environment. A determination may be made as to whether to grant the request based on a context-based lock condition. In one example, the context-based lock condition includes a lock redundancy component and an execution context component.