Dynamic Processor Core Scheduling for Real-Time Network I/O
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Solution Overview
Problem
Current multiprocessor core systems face inefficiencies in processing network I/O requests due to static configuration methods, which fail to meet real-time demands and lead to suboptimal processor core scheduling, limiting overall system performance.
Innovation Solution
A dynamic method for scheduling processor cores that involves obtaining control parameters such as data flow indications, internal transmission durations, processor core usage, and application critical path information to dynamically switch packets between idle processor cores and adjust processing modes between interruption and polling modes based on overhead analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static configuration is used for processor core scheduling, then system stability is maintained, but real-time network I/O processing demand cannot be met and system efficiency deteriorates
Solution Approach 1:
The patent implements dynamic processor core scheduling by monitoring system state parameters (CPU usage, memory usage, network I/O load) in real-time and automatically adjusting task-to-core bindings. The scheduler transitions from static configuration to dynamic reconfiguration based on current system conditions, allowing the system to adapt to varying workloads and meet real-time processing demands while maintaining stability through controlled transition mechanisms.
Solution Approach 2:
The system dynamically changes scheduling parameters including processor core assignments, task priorities, and mode switchings (polling/interruption) based on monitored system state parameters. By adjusting these parameters in response to real-time conditions such as CPU utilization thresholds and network I/O intensity, the system optimizes processing efficiency without compromising stability.
2Ease of operation
If tasks are bound to designated processor cores in static configuration, then scheduling simplicity is maintained, but processor core utilization becomes suboptimal and efficiency deteriorates
Solution Approach 1:
The scheduling system operates autonomously by automatically monitoring system state parameters and performing task-to-core rebindings without manual intervention. The scheduler evaluates current processor core utilization, task characteristics, and system load, then dynamically reassigns tasks to optimize core utilization while maintaining operational simplicity through automated decision-making algorithms.
3Ease of manufacture
If processor core switching between interruption mode and polling mode is performed statically, then implementation simplicity is maintained, but processing efficiency for network I/O requests deteriorates
Solution Approach 1:
The system dynamically switches between interruption mode and polling mode based on real-time network I/O characteristics and system state parameters. The scheduler monitors packet arrival rates, processing delays, and CPU utilization to determine the optimal operating mode, transitioning dynamically to maximize processing efficiency for different network traffic patterns while maintaining implementation feasibility through standardized mode switching mechanisms.
Data Source
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AI summary
The present invention discloses a method, an apparatus, and a system for scheduling a processor core in a multiprocessor core system, which relate to the field of multiprocessor core systems, and can meet the demand for real-time network I/O processing, thereby improving the efficiency of the overall multiprocessor core system. The method for scheduling a processor core in a multiprocessor core system includes: obtaining, in the running process of the multiprocessor core system, a first control parameter, a second control parameter, a third control parameter, and a fourth control parameter; transferring a packet of a data flow that enters the multiprocessor core system to an idle processor core for processing based on the first control parameter, the second control parameter, and the third control parameter; and switching over the processor core in the multiprocessor core system between an interruption mode and a polling mode based on the fourth control parameter. The present invention is mainly applied to schedule a processor core.