Security chip, multi-task scheduling method and device thereof and storage medium

Abstract

The invention discloses a security chip, a multi-task scheduling method and device thereof and a storage medium, and the method comprises the steps: obtaining a time stage when a current thread executes a task, the time stage comprising a coprocessor calculation time stage; when the current thread is in the coprocessor calculation time stage, the current time of the system is obtained, and the next thread to be switched is determined according to the priority sequence or the time slice rotation sequence of the multiple threads; and when the difference between the current time of the system and the last quit time of the next thread to be switched is greater than or equal to the coprocessor calculation time of the next thread to be switched, switching to the next thread to be switched. According to the scheduling method disclosed by the invention, the parallel operation of each coprocessor and the CPU of the security chip can be realized, the utilization rate and the processing speed of the chip are improved, and the problems of resource waste, low efficiency and idle waiting of the CPU caused by multi-task scheduling are avoided.

Description

Technical field [0001] The invention involves the field of task scheduling technology, especially the multi -tasking scheduling method of a security chip, a multi -tasking scheduling device for a security chip, a computer readable storage medium, and a security chip. Background technique [0002] Safety chips are chips that can provide data that can provide data that can provide data, signatures, signatures, and storage. It has become an indispensable part of modern information security technology. In industries such as gas. [0003] The security chip operating system is an embedded operating system that calls the security chip hardware to achieve various security computing functions. With the rapid development of chip technology, the performance of security chips has gradually improved, and multiple algorithm association processors can be supported. The collaborative processor can independently CPU (Central Processing Unit, central processor) parallel operation to achieve a vari...

AI Technical Summary

Problems solved by technology

This is directly applied to the security chip, which can process multiple tasks at the same time. When multiple tasks use different coprocessors, they can run in parallel. However, when multiple tasks use the same coprocessor at the same time, the tasks need to be suspended. , the system needs to suspend and switch multiple tasks, which will lose multiple switching times and affect the execution speed

In addition, the task switching time is relatively fixed, and the task switching time cannot be dynamically adjusted according to the coprocessor processing task time. When the coprocessor processing time is long, the task switching back often occurs, the coprocessor has not completed processing, and the CPU needs to wait for the coprocessor. The calculation result of the processor causes unnecessary thread switching and CPU empty loss

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