A process migration method, computing device and storage medium

Abstract

The invention discloses a process migration method, a computing device and a storage medium, and comprises the steps of: calculating the expected running time of each process in a processor according to the running information of the process; according to the predicted running time of the process, reducing the predicted running time to The process with the running time threshold is determined as a short-running process; obtain the running information of the processor, and determine whether to use the short-running process as the process to be migrated according to the running information of the processor; Running information, from which the target processor for migration of the process to be migrated is determined; and the process to be migrated is migrated to the target processor for operation. The present invention can avoid migration of all short-running processes, reduce the number of migrations of short-running processes, reduce the failure of cache and memory affinity caused by migration, and ensure that the migration of short-running processes can improve system performance and improve processing efficiency. device efficiency.

Description

technical field [0001] The invention relates to the field of processors, in particular to a process migration method, computing equipment and storage media. Background technique [0002] With the development of computer technology, in order to further improve the working efficiency of the processor in the computer equipment and the processing speed of the computer to the task, a multi-core load balancing mechanism will be adopted in the process of executing many tasks. The multi-core load balancing mechanism refers to migrating processes between processors. Specifically, a scheduling algorithm (such as the PELT algorithm) is periodically used to calculate the load of each process in the processor scheduling queue to obtain the processor load. The load of a processor is the sum of the loads of all processes in the scheduling queue of the processor. When the kernel finds that the load distribution on each processor is significantly different, it will migrate the process from ...

AI Technical Summary

Problems solved by technology

In the existing technology, the load of each process is calculated by the method of time decay, and the running time of the short execution cycle process is very short, and the CPU is reselected according to the load when waking up, which will cause frequent migration of processes between CPUs.

Frequent migration of processes will increase the load of the system, invalidate the cache of the process, increase the probability of accessing memory across NUMA nodes, increase the number of memory pages migrated by the NUMA automatic balancing mechanism, and reduce system performance

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