Task acceleration optimization method and device based on priority partitioning

Abstract

The invention discloses a task accelerated execution optimization method and device based on priority partitions, and the method comprises the steps: pre-defining task priorities, and configuring memory partitions and mark characters for all priority tasks; before an application service program is compiled, predefined mark characters are automatically placed in a task function corresponding to a priority task and a data area of the task function through a tool, and the tasks with the same priority are divided into the same continuous memory partition when the program is linked. In the programguiding process, the code with the highest priority is locked in the instruction Cache, so that the code instruction with the highest priority can run with higher efficiency and more stable executiontime, and the problems of unstable execution time and low execution efficiency caused by high-priority interruption when a universal CPU is adopted to replace a special DSP are solved.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to a task acceleration and optimization method and device based on priority partitioning. Background technique [0002] With the improvement of integration and performance of general-purpose CPU, the development of special-purpose digital signal processor DSP has been severely restricted, and it has gradually become a trend to replace special-purpose DSP with general-purpose CPU. At present, major DSP manufacturers (such as TI and ADI) have stopped investing in new DSP development roadmaps, and have also begun to increase investment in general-purpose CPUs. As a complete machine manufacturer, it is also necessary to keep up with the trend of technological development, otherwise the complete machine integration will not be able to keep up with the market competition environment. However, general-purpose CPU chips generally do not have the concept of DSP's on-chip...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of unstable execution time caused by high-priority task Cache and DDR-ram switching, and to provide a method and device for accelerating task execution optimization based on priority partitioning, which partitions code instructions according to priority, and compiles The link automatically links codes with different priorities, and finally realizes that high-priority codes are locked in the internal high-speed Cache memory, and realizes hard real-time execution of high-priority tasks

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