CPU Core Idle Time Detection for Accurate Utilization Reporting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems inaccurately measure CPU utilization of cores, leading to inefficient resource management and utilization in cloud computing environments.
Innovation Solution
A core utilization reporting system that detects and reports the actual CPU utilization by distinguishing between processing time and idle time during polling loops, enabling precise determination of core usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional CPU utilization monitoring is used, then resource management decisions can be made, but the measurement accuracy is poor leading to inefficient resource allocation
Solution Approach 1:
The patent segments the CPU core's operational time into distinct components: polling time and task processing time. By separating these previously aggregated measurements, the system can accurately identify idle time as the difference between total time and actual task processing time, thereby resolving the measurement accuracy problem while enabling efficient resource allocation decisions.
2Measurement precision
If polling frequency is increased to improve measurement accuracy, then CPU utilization can be monitored more frequently, but more idle time is spent polling instead of doing work
Solution Approach 1:
The patent implements a feedback mechanism where the measured idle time percentage is fed back into the polling interval adjustment logic. When idle time exceeds a threshold, the system dynamically increases polling intervals to reduce wasted polling time. This self-regulating feedback loop maintains measurement accuracy while optimizing core productivity by adapting polling frequency to actual workload conditions.
Data Source
AI summary
Systems and methods for determining and reporting actual utilization of a core of a central processing unit (CPU) of a host. Prior to implementation of aspects of the present disclosure, running a poll querying endpoints of a process for work appears to the host's operating system as busy work (e.g., taking full use of the core for the poll duration). However, only a percentage of the duration of the poll is used to process a task of the process, where the remaining duration of the poll is spent querying the endpoints (idle time) and the core is not performing a task. Accordingly, a core utilization reporting system and method automatically detects the processing time of the tasks of a process, determines actual CPU utilization of the core based on a percentage of the time the core is busy polling (doing effectively no work) versus doing actual work (processing a task).