Tag: jvm

The back-end

The most core Java new memory model analysis and experiment single version (constantly updated in QA)

February 6, 2024

by Kaitlyn Chandler-Monk

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Many Java developments use Java's concurrency synchronization mechanisms, such as volatile, synchronized, and Lock. Many people have also read Threads and Lo in JSR chapter...

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The back-end

Core Understanding of the Memory barrier (CPU+ compiler)

February 6, 2024

by Ms. Jacqueline Scott DVM

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Many Java developments use Java's concurrency synchronization mechanisms, such as volatile, synchronized, and Lock. Many people have also read Threads and Lo in JSR chapter...

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reading

Deep parsing of Java multithreaded memory model

February 6, 2024

by Chloe Webb

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Hardware level memory model The connection between the Java memory model and the hardware memory model Visibility of shared objects Resource race The Java memory...

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The back-end

Chapter 12 Java Memory model and threads

February 6, 2024

by Jessica Morales

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The Java Memory Model is no longer a physical definition: the access rules for various variables can be understood as "process abstraction" for reading and...

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android

Chapter 12 Java Memory model and threads

February 6, 2024

by Aarav Chaudhuri

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The JVM specification defines a Java Memory Model (JMM) to mask differences in memory access across hardware and operating systems. To achieve Java programs in...

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The back-end

(eight)JVM into god path of GC partition: G1, ZGC, ShenandoahGC high performance collector in-depth analysis

February 6, 2024

by Ms. Jennifer Byrne

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In the introduction to GC Generation, we covered the generational GC collector in the JVM. In this chapter, we focus on the high performance collectors...

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The back-end

One OOM troubleshooting experience caused by hot deployment

February 6, 2024

by 錢佩珊

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In the test environment OOM, the hot deployment basic image package is used. Conclusion: The self-defined classloader and hot deployment plug lead to memory leakage...

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The back-end

Just how amazing is the Unsafe class, which frameworks everywhere are using?

February 6, 2024

by Jessica Wood

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Almost every tool, software infrastructure, and high performance development library developed using Java, such as Netty, Cassandra, Hadoop, Kafka, etc., uses Sun.misc. Unsafe at its...

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The back-end

JVM series: Learning about Escape analysis

February 6, 2024

by 秦婷婷

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After the method inlining described above, JIT just-in-time compilation has another cutting-edge optimization technique: Escape Analysis. Let's cut to the chase. Escape analysis First of...

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The back-end

(7) GC generation of JVM into god path: generation GC, CMS collector and YoungGC, FullGC log analysis

February 6, 2024

by Devansh Subramaniam

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Introduction in the "GC Foundation" has talked about the concept of over-generation and partition recycling, but the foundation is more based on some GC algorithm...

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The back-end

How does our Java code magically become a JVM process once it’s started?

February 6, 2024

by 李雅琪

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How does written Java code run, and how does it become a JVM process once it runs? How does the JVM process run code? Many...

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The back-end

An in-depth look at how the G1 garbage collector is implemented

February 6, 2024

by Shlok Chandra

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This article details the implementation principle of G1 garbage collector, including the use of tricolor notation, RSet implementation details, SATB, ATMS, etc.

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The front end

How to Troubleshoot Java Memory Leaks

February 6, 2024

by Nayantara Devan

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A fault review meeting was just added today. The fault is very typical, and similar cases can also be found under Google. In the process...

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android

In-depth understanding of the Java Virtual Machine (Automatic Memory management mechanism)

February 5, 2024

by 王家銘

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Books are really often read often new, the ancients said that "read a book a hundred times its sense of self" or quite reasonable. I...

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The back-end

JVM series: Deep learning method inlining

February 5, 2024

by Mr. Denis Woodward

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Method inlining, mentioned several times in previous articles, is the most important optimization technique for compilers, not only eliminating the performance overhead of the call...

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The back-end

A large number of JVM Native memory leaks

February 5, 2024

by Tejas Chaudhry

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JVM native memory leak inflation is a problem in Linux 64M

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The back-end

Vm series: Basic tools for monitoring VM performance

February 5, 2024

by Tia Moore

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Before we understand the virtual machine related technology, probably virtual machine has a more systematic understanding. Most of the above is theoretical knowledge, but some...

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The back-end

The JDK has several built-in widgets to help locate and handle JVM faults

February 5, 2024

by Jhanvi Loke

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Fault location by THE JVM is mainly used to process and analyze some data during system running, such as stack information and thread snapshots. The...

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The back-end

Command line JVM troubleshooting tools

February 5, 2024

by Nicole Bradshaw

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1. Introduction Although we have introduced a variety of graphical JVM troubleshooting tools, in many cases, we do not have a graphical operating environment to...

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The back-end

JVM principles shorthand review Java Virtual machine summary mind mapping interview essentials

February 5, 2024

by Yashvi Karan

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The only field that does not specify an OOM (OutOfMemoryError) is the address of the virtual machine bytecode instruction being executed (null if Native methods...

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The back-end

The JVM series: Those things about just-in-time compilers

February 5, 2024

by Beth Tyler

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In our previous article on how Java executes, we mentioned just-in-time compilers, a technique used to make applications run more efficiently. Typically, code is interpreted...

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The back-end

JVM monitoring tools – command line tools

February 5, 2024

by Lorraine Skinner

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JPS allows us to see which Java processes are running, and we can see manually configured JVM parameters. Jstat allows us to learn gc information...

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reading

【JVM Architecture 】

February 5, 2024

by Luke Robinson

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1. JVM instance: A JVM instance corresponds to a standalone Java program running at the process level. 2. JVM execution engine instances: JVM execution engine...

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android

Android tip: This covers all the ways to “exit an App with one click.

February 5, 2024

by Jessica Bridges

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Statement: This article is originally published by Carson_Ho and has been published with its permission. There will often be "one-click exit App" demand, but there...

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The back-end

Follow me volatile from surface to bottom

February 5, 2024

by Prisha Dugar

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It is obvious that the demo-thread reads the flag value true from main memory and places it in working memory. Then, while checks whether the...

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The back-end

Implementing the JVM in Java Chapter 1 command Line Tools

February 5, 2024

by 寧靜怡

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In order to better learn the JVM read "Java Virtual Machine specification", "write your own Java Virtual machine", especially "automatic manual write Java virtual machine"...

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The back-end

In-depth Understanding of the Java Virtual Machine (4)- TALK about JVM optimization (continue to be updated)

February 5, 2024

by Darshit Loyal

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| class | for viewing class loading conditions, shows the number of class loading, and occupies space. | gc | look at the JVM heap...

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reading

This article takes you through the principles of the JVM

February 5, 2024

by Claudia Vasquez

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The JVM (JAVA Virtual Machine) is an imaginary computer that can run JAVA code. It runs on the operating system. Each platform has a different...

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The back-end

JVM- Virtual machine stack

February 5, 2024

by 張家銘

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The Java Virtual Machine Stack (Java Virtual Machine Stack) is also called the Java Stack. When each thread is created, it creates a virtual machine...

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reading

JVM Architecture

February 5, 2024

by Stephanie Parks

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A virtual machine is a software implementation physical machine. Java is developed on the basis of WORA (Write Once Run Anywhere), which runs on virtual...

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