Tag：garbage
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Time：2020-10-23
Tomcat performance tuning: Find the conf directory under the Tomcat root directory and modify it server.xml The content of the document. For this part of the tuning, what I have learned is to set the maximum number of concurrent Tomcat server and the number of threads created during Tomcat initialization. Of course, there are also […]
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Time：2020-10-11
This happens when variables used to store windows / trays are garbage collected. If you encounter this problem, the following articles may be helpful: memory management Variable range（https://msdn.microsoft.com/library/bzt2dkta（v = vs.94％29.aspx） If you want to fix it quickly, you can change your code to make the variable global const {app, Tray} \= require(‘electron’) app.on(‘ready’, () \=> […]
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Time：2020-10-7
Abstract: as a tribute to the era of junk games, Andreas streichardt created a flash game using the arangodb database to commemorate the era. Come and have a look! In July, Adobe announced that they planned to end flash around 2020. With the progress of HTML5, and due to the long-standing existence of key security […]
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Time：2020-10-7
I collated advanced Java materials free of charge, covering Java, redis, mongodb, mysql, zookeeper, spring cloud, Dubbo high concurrency distributed course, a total of 30g, you need to get it yourself.Portal:https://mp.weixin.qq.com/s/osB-BOl6W-ZLTSttTkqMPQ JAVA memory area What are the main components of the JVM and their roles? The JVM consists of two subsystems and two components: […]
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Time：2020-10-4
High quality AI articles collected in the first half of 2020 – AI + and + AI direction When AI hits the supply chain Seven questions about how to use machine learning to do anomaly detection AI application in medical industry should avoid “garbage in and garbage out” Academician Ge Junbo: there are […]
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Time：2020-9-29
Due to the V8 engine, node has some limitations when operating large memory objects. On 64 bit machines, the default maximum operation object size is about 1.4g, and on 32-bit machines, the default maximum operation object size is about 0.7G.If our node program often operates on objects with large memory, you can modify this default […]
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Time：2020-9-29
Every java development student will encounter JDK, JVM and GC problems in daily work or interview. This article will take the following 10 questions as the breakthrough point, and take you to have a comprehensive understanding of all aspects of the JVM. The difference and relation of JVM, JRE and JDK What is a JVM? […]
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Time：2020-9-18
Tomcat optimization and JVM parameter optimization Tomcat tuning and JVM parameter optimization The conceptual process is the clearest JVM performance tuning Excerpt from: http://uule.iteye.com/blog/2114697 Summary of JVM garbage collection and performance tuning Several strategies for JVM tuning 1、 JVM memory model and garbage collection algorithm 1. According to the Java virtual machine specification, the JVM […]
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Time：2020-9-6
1、 What is a memory overflow? Memory overflow (OOM: out of memory) is commonly understood as insufficient memory. When running large software or games, the memory required by the software or game far exceeds the size of the memory installed in your host, which is called memory overflow. In Java, the java.lang.OutOfMemoryError 。 Throw when […]
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Time：2020-9-4
Study on yolov5 based on garbage target detection task Author: Yu Minjun Research background As a scientific management scheme for effective disposal of garbage, garbage classification is of great significance in improving resource utilization rate, alleviating the pressure of garbage production and improving ecological environment. It is a strategy that must be adopted in the […]
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Time：2020-9-2
JVM JVM memory structure Garbage collection algorithm Idea: enumerate root nodes and do reachability analysis Root node: class loader, thread, local variable table of virtual machine stack, static member, constant reference, variable of local method stack Mark clearing algorithm Algorithm: it is divided into “mark” and “clear” two stages. First, mark all the objects that […]
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Time：2020-8-16
1、 JAVA memory structure 1. Java heap Java heap is the largest block of memory managed by Java virtual machine. It is a memory area shared by all threads. It is created when the virtual machine is started. The only purpose of this memory area is to store object instances, which is described in the […]
