Java Language Specification Third Edition ========================================= 1 Introduction 1.1 Example Programs 1.2 Notation 1.3 Relationship to Predefined Classes and Interfaces 1.4 References 2 Grammars 2.1 Context-Free Grammars 2.2 The Le
Java语言规范: This specification is organized as follows: Chapter 2 describes grammars and the notation used to present the lexical and syntactic grammars for the language. Chapter 3 describes the lexical structure of the Java programming language, whic
HeapAnalyzer 是 IBM 的一个用来分析 Java 程序的内存堆使用情况的图形化工具。 IBM HeapAnalyzer怎么用? IBM HeapAnalyzer,下载之后首先阅读一下readme,这上面详细写了HeapAnalyzer的使用方法。可以在命令行中输入java –Xmx[heapsize] –jar ha26.jar 来启动工具并加载heapdump文件。对于比较大的heapdump,将-Xmx设置一个较大的值(大于heapdump的大小),来避免加载过程中的OOM。
HeapAnalyzer allows the finding of a possible Java™ heap leak area through its heuristic search engine and analysis of the Java heap dump in Java applications. Java heap areas define objects, arrays, and classes. When the Garbage Collector allocates
MemoryAnalyzer 使用中文 文档Me mory an a lyzer使用文档
2. Shallow or retained heap
Shallow Heap表小一个对象消费的内存的总量。对象的每个引用变量会占用32或64bit(取决于操作系
统),每个 nteger需要占用4byte,每个Long需要占用8byte,诸如此关的其他信息可以自行查询。Sha|low
heap的值可能是经过了调整的(比如对齐到8,具体取决于 H
愚蠢的终结者
建造
go build
跑
# List all objects blocked by a finalizer
./finalizers
# List all objects with finalizers
./finalizers --all
例子
./finalizers
NAMESPACE NAME APIVERSION KIND FINALIZERS
p