jvm garbage collection

JVM garbage collection and jvm garbage collection JVM garbage collection This article attempts

Analysis of JVM garbage collection mechanism and jvm garbage collection First, we need to know that Java's memory allocation and collection are all automatically completed by the

garbage collection, it needs to interrupt all the user threads, know that it is finished, and therefore known as the "Stop the World" garbage collector. Note that the JVM Chinese name is Java Virtual machine, so it works like a virtual computer, and each one of these threads is considered a processor of the

Chapter 4 JVM garbage collection algorithm and Chapter 4 jvm garbage collection Note: Before reading this article, you need to know how to determine whether the object is alive or not. For details, see Chapter 3

Based on common JVM garbage collection algorithms, jvm garbage collection There are four common garbage collection algorithms in

JVM garbage collection algorithm and jvm garbage collection 1. Mark-cleanup algorithm: the most basic garbage collection algorithm. Just lik

JVM garbage collection algorithm and jvm garbage collection 1. Reference Counting Collector) The reference counting algorithm is a simple but inefficient algorithm. Its main principle is as follows: each object in the heap has a r

Chapter 5 JVM garbage collector (1): jvm garbage collection (The garbage collection algorithm is a theory, and the garbage collector is a

What are the common garbage collectors in Java?In fact, the garbage collector (Gc,garbage Collector) is closely related to the specific JVM implementations, and different vendors (IBM, Oracle), different versions of the JVM, offer different choices. Next, I'll talk about the

JVM-Garbage Collector, jvm-garbage collection This article mainly introduces several JVM garbage collectors. As shown below, the three above are the new generation collectors, The follo

Chapter 6 JVM garbage collector (2) jvm garbage collection The previous chapter records several common garbage collectors. For details, see chapter 5 JVM

I believe in the same procedure. Apes often encounter garbage collection problems in their daily work or interviews, and are there any details in the dead of the dead of night on the JVM garbage collection mechanism? It doesn't matter if you don't have time to do it, because

is required. This step is to remembered the application thread exists in the contents of the set logs, and modify the corresponding remembered sets, this step needs to pause the application, parallel running.Survival object calculation and cleanup (live Data counting and Cleanup)It should be noted that in G1, it is not that final marking pause is executed, it is certain to perform cleanup this step, because this step needs to suspend the application, G1 in order to achieve quasi-real-time requi

), weak references (Weak Reference), virtual references (Phantom Reference) These 4 kinds of references are under the Java.lang.ref package:　　Strong references (Final Reference)Refers to references that are common in program code, such as Object obj = new Object (), as long as a strong reference exists, and the garbage collector never reclaims the referenced object.strong references have the following three features:1. A strong reference can directly

JVM memory management, garbage collection, and jvm Memory Management I. JVM Memory Structure The Java Virtual Machine divides the memory into several different management zones. These regions have their own purposes. Based on their characteristics, they undertake different t

Jvm learning notes 1 (garbage collection algorithm) and jvm learning notes I. Reasons for the garbage collection mechanism In java, when no object reference points to the memory originally allocated to an object, the memory become