Optimization method and optimization system for task scheduling in large-scale virtualization environment
A technology for virtualized environment and task scheduling, applied in the field of task scheduling optimization and optimization system in large-scale virtualized environment, can solve the problems of consuming system resources, inability to centrally monitor and track, task process suspension, etc., to simplify configuration The effect of managing and reducing the burden on the database
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[0068] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0069] The database product adopts MySQL, and the shared memory mechanism adopts the shared memory of the System V standard built into UNIX-like systems. In order to coordinate the synchronous access of multiple processes to the shared memory, the System V standard semaphore is used as the lock synchronization mechanism. The scheduling queue adopts the System V standard message queue and supports message priority.
[0070] In order to improve the concurrency of task information shared memory access, two signal lights are used to control memory synchronous access: one "refresh light" and one "read light". The target effect has three points: multiple processes can read the shared memory at the same time, prohibit other processes from accessing the memory when the memory is refreshed, and prohibit the refresh operation when other processes are accessing t...
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