Insane /Serial Old/Parallel Old/CMS/G1
Before I talk about garbage collectors, I need to know what garbage collection algorithms are common in the JVM, as described in this blog post....
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Tag: jvm
Exploration and Practice of a New generation of garbage Collector ZGC
December 8, 2023
by Joseph Young
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ZGC (The Z Garbage Collector) is a low-latency Garbage Collector released in JDK 11. Its design goals include: pause time is not more than 10ms;...
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How to track internal Memory usage of a JVM using Native Memory Tracking?
December 7, 2023
by Tanya Krishnamurthy
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Java8 introduces Native Memory Tracking (NMT for easy reading) to HotSpot VM, which can be used to track the internal Memory usage of the JVM...
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Three properties: atomicity, visibility and order
December 7, 2023
by Amanda Ochoa
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When analyzing thread-safety issues in concurrent programming, you often need a starting point. There are two cores: the JMM abstract memory model and the happens-before...
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JVM G1 (garbage-First Garbage Collector
December 7, 2023
by Paige Duncan
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The G1 Garbage collector is designed to "collect as much Garbage as possible First," with the goal of minimizing the pauses associated with processing very...
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Points to refine | understand such things as the JVM loading mechanism
December 7, 2023
by Ben Peterson
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A. JVM Class loading mechanism: A VM loads data describing a Class from a Class file to the memory, verifies, transforms, and initializes the data,...
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G1 theoretical basis and Full GC, memory jitter experience sharing
December 7, 2023
by Thomas Goodman
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I've read blogs and books about the G1 collector collection process, and almost nine times out of ten they say something different. To determine which...
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G1 garbage collector principle analysis
December 7, 2023
by Nicola Ryan-Brooks
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Most programmers have an idea of "garbage collection" from the Java language, but the concept was invented around 1959 by John McCarthy, an American computer...
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Overview of garbage collection and algorithms
December 7, 2023
by Renee Zacharia
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[TOC] 11. Overview and Algorithm of Garbage Collection What is garbage? Garbage collection is not a companion product of the Java language. Back in 1960,...
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In-depth understanding of jVM-class loading mechanisms
December 7, 2023
by Travis Porter
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The process of loading a Class file into memory, validating, converting, parsing, initializing, and finally forming a directly usable Java type is called the Class...
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LockSupport and park, unpark method source code analysis
December 7, 2023
by Alan Ross
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LockSupport is a new JUC utility class in JSR 166. The LockSupport class is primarily used to create locks and other synchronization classes for thread...
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JVM VM (1) — Common JVM configuration parameters
December 7, 2023
by Ivana Behl
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Common JVM configuration parameters include: Trace Trace parameter, heap allocation parameter, stack allocation parameter. The Trace parameter is used to Trace and monitor the JVM,...
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Java dynamic tracking technology exploration
December 7, 2023
by Denise Simmons
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"Debug it." "Online machine, no Debug port open." "That code didn't print a log." "Change the code, log it, and release it again." "Suspected thread...
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Talk about partitioning the memory region of the JVM
December 7, 2023
by Zara Subramaniam
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For Java programmers, we do not have to manually manage the allocation and release of object memory, but let the Java Virtual machine (JVM) manage...
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StampedLock, you deserve it!
December 7, 2023
by Neelofar Mahajan
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In JDK 1.8, StampedLock was introduced as an enhancement to ReentrantReadWriteLock, adding an Optimistic Re to the original read and write lock
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Java Basics (8) Deep parsing constant pools and unpacking mechanisms
December 7, 2023
by Shelley O'Donnell
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Constant pool will be introduced in this paper and the split open a case using the mechanism, the reason that the two together, because a...
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Talk about Storm’s Windowedbolt Ecutor
December 7, 2023
by Joanna Murphy
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Sequence in this paper, we study the storm WindowedBoltExecutorWindowedBoltExecutorstorm - 2.0.0 / storm/org - client/SRC/JVM/apache/s
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The object of the JVM
December 7, 2023
by Aarna Swamy
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When the Java virtual machine reaches a bytecode new instruction, it first checks to see if the instruction's arguments locate a symbolic reference to a...
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☕JVM Technology Tour – An advanced analysis of memory layout features
December 7, 2023
by Chelsea Martin
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In this article, we have introduced the JVM architecture and features in a systematic way, but there may be loopholes and missing content, so we...
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Java Synchronized lock – Partial lock
December 7, 2023
by 鄧志豪
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In a real world scenario, if a synchronized block (or method) does not have multiple threads competing, and the same thread always re-enters to acquire...
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<JVM previous: Memory and Garbage Collection >06- Heap
December 7, 2023
by Mark Banks
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A Heap is unique to a JVM process, that is, a process has only one JVM, but the process contains multiple threads that share the...
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Jvm-cleanup phase algorithm Two: Copying-007 algorithm
December 7, 2023
by Jonathan Johnson
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A: one of 006 - the JVM - Sweep phase algorithm: Mark Mark Sweep - https://juejin.cn/post/6908617627208253448 - clear algorithm. Background In order to address the...
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Class loading, wiring, and initialization
December 7, 2023
by Renee Rose
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Understand the life cycle of a class from loading, connecting, initialization to unloading. Understand the parental delegation model understand and master the actual class loading...
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< JVM Part: Bytecode and Class Loading > 04- More on class loaders
December 7, 2023
by Michael Stevens
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Class loaders are a prerequisite for the JVM to implement a classloading mechanism. ClassLoader is the core component of Java. All classes are loaded by...
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How to make good use of Java exceptions
December 7, 2023
by Gokul Chacko
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Java exceptions are a feature of the Java language. It's something that you use a lot in everyday coding. But do you really know anything...
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Programmer Java interview question: Baidu first 200 pages are here
December 7, 2023
by 王欣怡
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What are race conditions? Let me give you an example. Introduction to the JSWDL development kit. JAXP, JAXM interpretation. SOAP, UDDI,WSDL interpretation. What are the...
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Use JVM_15 javap
December 7, 2023
by Robert Williams
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By decomcompiling the generated bytecode files, we can get an in-depth understanding of the working mechanism of Java code. However, analyzing the class file structure...
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[Reading Notes] In-depth understanding of loading processes such as Java Virtual machines
December 7, 2023
by Seth Harvey
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The preparation phase is the phase where you formally allocate memory and set initial values for variables defined in a class (that is, static variables,...
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JVM Series (7) Runtime data area (Method area)
December 7, 2023
by 成雅慧
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1. Interaction between stack, heap, and method area from the perspective of whether threads are shared or not: Interaction: 2. Methods the understanding official document...
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In-depth Understanding of the Java VIRTUAL Machine Reading Notes —- The Java memory area and memory overflow are abnormal
December 7, 2023
by Shray Uppal
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Recently, I have read "Deep Understanding of Java Virtual Machine", and sorted out the output according to my reading notes. I hope it will be...
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