Multi-core processor-oriented operating system noise control method

Abstract

The invention discloses a multi-core processor-oriented operating system noise control method, which belongs to the fields of operating systems and program analysis. The noise control method provided by the invention is implemented on a Linux kernel based on an isolation control method, and comprises the following steps of: setting a set of kernel control interface, dynamically setting a quiet central processing unit by using the interface and specifying a process onto the quiet central processing unit for running; and setting a kernel mechanism supporting quiet control, mainly comprising the modification of a kernel project, the setting of a new quiet central processing unit and prevention of influence on the quiet central processing unit. By the noise control method provided by the invention, the quiet processors required to be isolated are not required to be reset in a restarting way, and avoid the rebalancing of tasks, thereby realizing control over the noises of the operating system and providing good consistent experiences for the user of the operating system.

Description

technical field [0001] The invention relates to the field of operating system and program analysis, in particular to a multi-core processor-oriented operating system noise control method. Background technique [0002] The traditional idea of ​​program optimization is to find program performance bottlenecks (such as cache failure, load imbalance, resource competition, etc.) through program profiling (Profile), and then reorganize the code structure to solve the problem. [0003] However, research in recent years has shown that with the improvement of hardware performance, especially the increase of the number of processors available in the system and the improvement of network connection speed, the operating system itself is gradually becoming an obstacle to the improvement of application performance. What would otherwise be normal activity in the operating system can become unwanted "noise" that degrades application performance. The critical code of some applications will h...

AI Technical Summary

Problems solved by technology

[0012] The existing basic methods for reducing operating system noise mainly include: 1) restricting the execution of daemon processes; 2) restricting hardware interrupt distribution

However, this type of operating system noise control method is not specifically aimed at operating system noise, and there are some limitations in the face of operating system noise control

For example, the startup script is modified, and the daemon process runs on a fixed processor, but the kernel's task balancing algorithm is still in effect, and kernel activities will still be scheduled to different processors, making the operating system noise control difficult to achieve.

Images