Processor low-power blocking type time delay method and device and readable medium

Abstract

The invention relates to a processor low-power blocking type time delay method and device and a readable medium, and the method comprises the steps: obtaining a first time delay state of a processor, and determining the time delay starting time, the time delay length and the timeout time point of the first time delay state; determining the residual delay duration of the first delay state according to the current time, the time delay length and the timeout time point; and starting a timer, keeping the processor in the first running state in the residual delay time through the timer, and returning the processor to the second running state after the residual delay time is ended. The method has the beneficial effects that processor resources are saved, and the power consumption of the processor during blocking type delay is reduced.

Description

technical field [0001] The invention relates to the field of computers, in particular to a processor low-power blocking delay method, device and readable medium. Background technique [0002] During the operation of the operating system, many scenarios require delays. For example, when the clock is initialized during the system startup phase, it is necessary to wait for the phase-locked loop to stabilize. When the display screen is initialized, it is necessary to wait for the hardware signal to stabilize. There are usually two implementations of delay: blocking delay and non-blocking delay. Blocking delay means that the processor waits in place without switching to other tasks. Task switching cannot occur in many scenarios, such as during interrupt processing, critical sections that can only be accessed by one task at the same time, early stages of startup when the task scheduling function is not ready, etc. If delays are required in these scenarios, blocking methods can on...

AI Technical Summary

Problems solved by technology

As a result, processor resources are wasted and processor power consumption is high

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