Thread Affinity Mechanism for Reducing System Resource Overhead
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Solution Overview
Problem
Current computer systems face significant resource overhead and latency due to the frequent opening and closing of system resources by threads when assigned to user objects, leading to inefficient resource utilization and potential thread hang-ups caused by resource contention, errors, or network issues.
Innovation Solution
Implementing 'thread affinity' where threads are permanently assigned to user objects, allowing resources to remain open and minimizing the need for repeated database switching and error handling, thereby reducing overhead and improving processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If threads are frequently assigned and reassigned to user objects, then system adaptability is improved, but system resource overhead increases due to repeated opening and closing of resources
Solution Approach 1:
The system pre-opens and pre-allocates system resources (such as database connections, network sockets, and file handles) before threads are actually needed. When a thread is assigned to a user object, the resources are already available and do not need to be opened again. This preliminary action eliminates the repeated opening and closing of resources that occurs in traditional thread assignment models, thereby reducing system resource overhead while maintaining the ability to dynamically assign threads to user objects as needed.
2Adaptability or versatility
If threads are frequently assigned and reassigned to user objects, then system adaptability is improved, but processing latency increases due to resource opening and closing operations
Solution Approach 1:
The system pre-opens and pre-allocates system resources (such as database connections, network sockets, and file handles) before threads are actually needed. When a thread is assigned to a user object, the resources are already available and do not need to be opened again. This preliminary action eliminates the repeated opening and closing of resources that occurs in traditional thread assignment models, thereby reducing system resource overhead while maintaining the ability to dynamically assign threads to user objects as needed.
3Productivity
If multiple threads share system resources, then resource utilization is improved, but thread reliability decreases due to resource contention and potential hang-ups
Solution Approach 1:
The system segments the allocation of system resources by creating dedicated resource pools for different user objects. Instead of having all threads share a common pool of resources, each user object has its own allocated resources that are exclusively used by threads assigned to that user object. This segmentation eliminates resource contention between threads from different user objects, preventing deadlocks and hang-ups, while still allowing high resource utilization within each user object's dedicated resources.
4Adaptability or versatility
If database connections are opened and closed with each thread assignment, then resource allocation flexibility is improved, but network traffic increases due to repeated connection establishment
Solution Approach 1:
The system implements a persistent database connection pool that can be shared across multiple threads and user objects. Instead of opening and closing database connections for each thread assignment, a set of database connections is established once and then reused by multiple threads as they are assigned to different user objects. This multi-functional approach allows the same database connections to serve multiple purposes and multiple user objects, significantly reducing the network traffic associated with repeated connection establishment while maintaining flexible resource allocation.
Data Source
AI summary
A method for allocating threads to a user in a computer system is described. The method comprises queuing up work for a first user and permanently assigning a first thread to the first user, wherein the first thread performs the queued up work for the first user, and wherein each time work is subsequently queued up for the first user, the first thread performs the queued up work for the first user.