Irqbalance for Linux CPU Optimization

Irqbalance for Linux CPU Optimization

First: Service Introduction

This service is specially designed to interrupt service instructions!

Ensure reasonable allocation of multi-core CPUs at the system level!

Ii. Installation Method

# Yum-y install irqbalance

#/Etc/init. d/irqbalance start

Third: Advantages and Disadvantages analysis:

Advantage: it can improve performance and reduce energy consumption.

Principle: irqbalance optimizes interrupt allocation. It automatically collects system data for analysis and usage mode, and places the working state in Performance mode or Power-save mode based on the system load status.

If you think it is a detour, there will be one vehicle in multiple marathas, and the driver will be irqbalance!

Disadvantages:

Irqbalance uses its own algorithm. In multi-threaded services, there may be potential allocation failures, resulting in unstable performance!

Fourth: selection criteria:

It is mainly determined by the hardware carried by the system and the software loaded!

Example:

The irqbalance service can be fully enabled on a general file server;

A well-configured Oracle database server does not need to enable this service at all (Oracle has a scheduler, and irqbalance consumes resources. In the end, you must pay attention to the shortcomings proposed in step 3)