Tag: scheduling

Java car automatic path finding and obstacle avoidance avg scheduling simulation

uml diagram Graph.java import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * @author: * @description：TODO * @date: 2023/3/4 1:53 */ public class Graph {<!– –> public int v; // number of vertices public int e; // number of edges static public List<List<Path>> pathArrayList = new ArrayList<>(); static public List<Node> nodes = new ArrayList<>(); static public int […]

Spring Boot 3 integrates xxl-job to implement distributed scheduled task scheduling, combined with Docker container deployment (graphic guide)

Directory Preface Initialize database Docker deployment xxl-job Download image Create container and run Visit the dispatch center SpringBoot integration xxl-job pom.xml application.yml XxlJobConfig.java Actuator registration view Scheduled task test Add test task Configure scheduled tasks Test Results Conclusion appendix xxl-job official documentation xxl-job source code Test project source code Foreword xxl-job is a distributed task […]

Kubernetes Advanced Scheduling – Affinity

Author:rab Directory Preface 1. Node affinity 1.1 NodeAffinity 1.1.1 Hard Node Affinity 1.1.2 Soft Node Affinity 1.2 NodeAntiAffinity 2. Pod affinity 2.1 PodAffinity 2.1.1 Hard Pod Affinity 2.1.2 Soft Pod Affinity 2.2 PodAntiAffinity Summarize Foreword Affinity and AntiAffinity in Kubernetes are key concepts for Pod scheduling. They allow us to control the distribution of Pods […]

How does Linux perform task scheduling?

Linux task scheduling Preface Scheduling Algorithm Performance First come first served Shortest tasks first Shortest completion time first time slice rotation Multi-level feedback queue LInux process scheduling scheduler CFS scheduler Other schedulers run queue Foreword The article will first introduce well-known scheduling algorithms, and then introduce the specific implementation and improvements in the operating system. […]

DNS global traffic scheduling

Background introduction With the rapid development of business, Company A is particularly concerned about the reputation and user experience of its products, and a good user experience is inseparable from the stable construction of infrastructure. Currently, Enterprise A has a single data center architecture. Due to the limitations of this architecture, after a data center […]

Linux modifies scheduling policy and priority

1. Overview of Linux scheduling strategies The kernel’s default scheduling algorithm is the cycle time sharing strategy (SCHED_OTHER or SCHED_NORMAL). The real-time scheduling strategy is divided into two types: SCHED_RR and SCHED_FIFO. In the Linux system, these two scheduling strategies have 99 priorities, and their priority values range from 1 (low Priority) ~ 99 (high […]

Big Data Scheduling Best Practices | Migrating from Airflow to Apache DolphinScheduler

Migration Background Some users originally used Airflow as a scheduling system, but because Airflow can only define workflows through code and does not have granular division of resources and projects, it cannot be applied well in some scenarios that require strong permission control. In order to meet customer needs,so some users need to migrate the […]

Scheduling in Kubernetes

Scheduling in Kubernetes Pods are the smallest deployable unit of Kubernetes where we can run our applications. Scheduling in Kubernetes is a core component as it aims to schedule the pod to a correct and available node. If you want to understand why Pods are placed onto a particular Node, or if you’re planning to […]

How to jump to user tasks in FreeRTOS task scheduling

Foreword When learning FreeRTOS, whether it is linked list learning, task definition creation or ready list, it is easy to understand. It is nothing more than the definition of some structures. It does not require a certain understanding of the CPU’s working mode and mode switching like when learning task scheduling. . Taking stm32 as […]