原文地址:http://www.informit.com/articles/article.aspx?p=1409801&seqNum=4 Debugging Managed Heap Fragmentation Earlier in the chapter, we described a phenomenon known as heap fragmentation, in which free and busy blocks are arranged and interleaved on th…
Allocating Resources from the Managed Heap The CLR requires that all objects be allocated from the managed heap. When a process is initialized, the CLR allocates a region of address space for the managed heap. The CLR also maintains a pointer, which…
Understanding the managed heap   Another common problem faced by many Unity developers is the unexpected expansion of the managed heap. In Unity, the managed heap expands much more readily than it shrinks. Furthermore, Unity’s garbage collection stra…
摘录自:http://blog.csdn.net/yangwenbo214/article/details/74000458 内存使用和GC指标 在运行Elasticsearch时,内存是您要密切监控的关键资源之一. Elasticsearch和Lucene以两种方式利用节点上的所有可用RAM:JVM heap和文件系统缓存. Elasticsearch运行在Java虚拟机(JVM)中,这意味着JVM垃圾回收的持续时间和频率将成为其他重要的监控领域. JVM heap: A Goldilocks…
原文地址:http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/gc01/index.html Overview Purpose This tutorial covers the basics of how Garbage Collection works with the Hotspot JVM. Once you have learned how the garbage collector functions, lear…
Java Memory Management, with its built-in garbage collection, is one of the language's finest achievements. It allows developers to create new objects without worrying explicitly about memory allocation and deallocation, because the garbage collector…
JVM的GC分为两个主要部分,第一部分是判断对象是否已死(堆内存的垃圾回收占主要部分,方法区(metaspace)的内存回收在最新的官方文档中未给出详细解释,暂时不做讨论范围),第二部分是对内存区进行回收用于下次的内存分配. 一.判断对象是否已死 JDK 8的VM实现是Hotspot虚拟机,它采用的是可达性分析算法. a.引用计数算法 给每个对象添加一个引用计数器,每当有一个地方引用它时,计数器值就加1:当引用失效时计数器的值就减1.但在VM中它无法解决的一个问题就是循环引用问题(也是    …
2.5 – Garbage Collection  自动垃圾回收 Lua 5.3 Reference Manual http://www.lua.org/manual/5.3/manual.html#2.1 2.5 – Garbage Collection Lua performs automatic memory management. This means that you do not have to worry about allocating memory for new object…
[Fundamentals of Garbage Collection] 1.Reclaims objects that are no longer being used, clears their memory, and keeps the memory available for future allocations. Managed objects automatically get clean content to start with, so their constructors do…
 The .NET Framework's garbage collector manages the allocation and release of memory for your application. Each time you create a new object, the common language runtime allocates memory for the object from the managed heap. As long as address spac…