文章浏览阅读143次。http://nginx.org/en/docs/_javautilconcurrent condition...
admin 2024-01-24
CodingSir擅长随笔,java.util.concurrent介绍,实用的内网穿透工具收藏,等方面的知识...
admin 2023-10-13
Source code: Lib/concurrent/futures/thread.py and Lib/concurrent/futures/process.py The concurrent.futures module provides a high-level interface for asynchronously executing callables. The asynchr......
admin 2023-11-11
槍炮與玫瑰擅长Java基础,C/C++基础,java.util.concurrent,等方面的知识,槍炮與玫瑰关注linux领域....
admin 2023-11-11
文章浏览阅读473次。TheMyISAMstorage engine supports concurrent inserts to reduce contention between readers and writers for a given table: If aMyISAMtable has no holes in the data file (deleted rows in the middle), anINSERTstatement can be executed to add rows to the e..._一次执行多个i......
admin 2024-01-24
文章浏览阅读446次,点赞67次,收藏117次。Volatile保证可见性package icu.lookyousmileface.volatilecode;import java.util.concurrent.Executors;import java.util.concurrent.LinkedBlockingQueue;import java.util.concurrent.ThreadPoolExecutor;import java.util.concurrent.TimeUnit;/** * @au......
admin 2024-01-24
文章浏览阅读953次。JUC:java.util.concurrent集合1、BlockingQueue什么是阻塞队列?阻塞队列(BlockingQueue)是一个支持两个附加操作的队列。这两个附加的操作是:在队列为空时,获取元素的线程会等待队列变为非空。当队列满时,存储......
admin 2024-01-23
文章浏览阅读314次,点赞91次,收藏109次。JMM请你谈谈你对 Volatile 的理解Volatile 是 Java 虚拟机提供轻量级的同步机制1、保证可见性2、不保证原子性3、禁止指令重排什么是JMMJMM : Java内存模型,不存在的东西,概念!约定!关于......
admin 2024-01-24
JUC:常用类1. ReentrantLock(1)lock 写在 try 之前(2)一定要记得在 finally 里面进行 unlock()2. 信号量用来控制锁的数量acquire() 尝试获取锁,如果可以正常获取到,则执行后面的业务逻辑,如果获取失败,则阻塞等待release() 释放锁3. ......
admin 2023-10-14
文章浏览阅读2.1k次。集合不安全先给大家上个集合框架家族图List不安全package icu.lookyousmileface.notsafe;import java.util.*;import java.util.concurrent.CopyOnWriteArrayList;/** * @author starrysky * @title: UnSafeList * @projectName Juc_Pro * @description: 集合不安全 ......
admin 2024-01-24
Build powerful reactive, concurrent, and distributed applications in Java and Scala...
admin 2024-01-23
Build powerful reactive, concurrent, and distributed applications in Java and Scala...
admin 2024-01-23
文章浏览阅读596次,点赞3次,收藏2次。线程池(重点)线程池:三大方法、7大参数、4种拒绝策略池化技术:事先准备好一些资源,有人要用,就来我这里拿,用完之后还给我。线程池好处:1、降低资源的消耗 2、提高响应的......
admin 2024-01-24
文章浏览阅读409次。Java多线程编程-LockSupport工具类使用及源码分析LockSupport类LockSupport.park()1.调用unpack方法获得许可2.调用中断interrupts方法获得许可parkNanos(long nanos)park(Object blocker)parkNanos(Object blocker, long nanos)parkUntil(Object blocker, lo......
admin 2024-01-23
一、线程池(ThreadPoolExecutor)Python中已经有了threading模块,为什么还需要线程池呢,线程池又是什么东西呢?在介绍线程同步的信号量机制的时候,举得例子是爬虫的例子,需要控制同时爬取的线程数,例子中创建了20个线程,......
admin 2023-10-10
文章浏览阅读402次。一、Dalvik1.1 GC含义Dalvik虚拟机,每一次GC打印内容格式:D/dalvikvm: <GC_Reason> <Amount_freed>, <Heap_stats>, <External_memory_stats>, <Pause_time>对应项:D/dalvikvm: <GC触发原因&..._explicit concurrent mark sw......
admin 2023-11-12
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