Table of Contents For thread pool parameters For task submission strategy Respond quickly to user requests The default strategy of java ThreadPoolExecutor is as follows The tomcat ThreadPoolExecutor strategy is as follows Process batch tasks quickly Thread pool monitoring Dynamic adjustment of thread pool parameters https://mp.weixin.qq.com/s/baYuX8aCwQ9PP6k7TDl2Ww Java thread pool implementation principle and its practice in […]
Tag: threadpool
KeepAliveTime analysis in ThreadPoolExecutor
keepAliveTime is the time that idle threads in the thread pool wait for tasks. If this time is exceeded, the thread pool will kick the current thread out of the thread pool. Divided into two scenarios: allowCoreThreadTimeout is set to true. After all idle threads in the thread pool time out, getTask() returns null, and […]
28.Thread pool ThreadPoolExecutor actual combat and analysis of its principles
Five states of thread pool The high three bits of the variable ctl of the AtomicInteger type are used to represent the status of the thread pool, and the other digits represent the number of worker threads in the thread pool. RUNNING Accept new tasks and process queued tasks The thread pool is running normally […]
java thread pool ThreadPoolExecutor and ThreadPoolTaskExecutor
Foreword 1. What are the benefits of using a thread pool Reduce resource consumption. Reduce the cost of thread creation and destruction by reusing created threads. Improve responsiveness. When a task arrives, the task can be executed immediately without waiting for the thread to be created. Improve thread manageability. Threads are scarce resources. If they […]
Concurrent programming – ScheduledThreadPoolExecutor
Article directory Introduction to ScheduledThreadPoolExecutor ScheduledFutureTask Four ways to perform tasks execute method schedule method Analysis of scheduleAtFixedRate and scheduleWithFixedDelay Introduction to ScheduledThreadPoolExecutor ScheduledThreadPoolExecutor is a subclass of ThreadPoolExecutor, which implements the function of delayed execution of tasks and periodic execution of tasks based on the thread pool. The first thing Java provided was the […]
Thread pool ThreadPoolExecutor implements parallel processing
1. Define an interface Animal package com.zh.vo; public interface Animal { void work(); } 2. Define an implementation class Bird package com.zh.vo; public class Bird implements Animal { @Override public void work() { int sum = 0; for (int i = 0; i < 100000; i + + ) { sum + = i; } […]
.NET Threadpool hunger, and how queues make it worse
.NET Threadpool Hungry, and how queuing makes it worse .NET Threadpool starvation, and how queuing makes it worse – Criteo Engineering There has been some threadpool-hungry discussion what is this? It’s a way to break async code if you use async await tasks. To demonstrate this problem, let’s consider a website executing the following code. […]
Use ThreadPoolExecutor to create a thread pool and complete parallel operations
Many extremely inefficient operations in many places in daily work can often be changed from serial to parallel, and the execution efficiency is often improved several times. Without further ado, let’s start with the code. 1. Guava coordinates used <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>18.0</version> </dependency> View Code 2. Create an enumeration to ensure that the thread […]
ThreadPoolExecutor
The official API explains the benefits of thread pools: (1) Reduce the performance overhead of creating and destroying each thread by reusing threads in the thread pool. (2) Perform some maintenance and management of threads, such as scheduled start, periodic execution, concurrency control, etc. 1. Executor Executor is an interface, and everything related to the […]
Explore the memory leak risks and prevention strategies in ThreadLocal and ThreadPoolExecutor
Explore the memory leak risks and prevention strategies in ThreadLocal and ThreadPoolExecutor This article will discuss possible memory leak issues in ThreadLocal and ThreadPoolExecutor, and propose corresponding prevention strategies. Memory leak problem of ThreadPoolExecutor ThreadPoolExecutor is a thread pool class that can manage and reuse threads, thereby improving program performance and stability. However, ThreadPoolExecutor can […]