GZIP造成JAVA Native Memory泄漏案例 https://www.elastic.co/blog/tracking-down-native-memory-leaks-in-elasticsearch https://gdstechnology.blog.gov.uk/2015/12/11/using-jemalloc-to-get-to-the-bottom-of-a-memory-leak/ Native Memory Tracking https://docs.oracle.…

How to Use DTrace to Troubleshoot Java Native Memory Problems on Oracle Solaris 11 Hands-On Labs of the System Admin and Developer Community of OTN by Wang Yu, Vincent Liu, and Gary Wang This lab will introduce the basic concepts of DTrace and provid…

原文地址:http://www.codeproject.com/Articles/1045847/Identify-Memory-Leaks-in-Visual-CPP-Applications 基于CPOL License Identify Memory Leaks in Visual CPP Applications Visual Leak Detector (VLD) is an easy to use memory leak detection system. The installat…

小结: 1. 数据库连接池. JDBC语句和结果对象必须显式地关闭. 2. 电梯到目标楼层后地址是否被释放 When a button is pressed: Get some memory, which will be used to remember the floor number Put the floor number into the memory Are we already on the target floor? If so, we have nothing to do: fi…

One of the most significant advantages of Java is its memory management. You simply create objects and Java Garbage Collector takes care of allocating and freeing memory. However, the situation is not as simple as that, because memory leaks frequentl…

from:http://chaosinmotion.com/blog/?p=696 Just because it's a garbage collected language doesn't mean you can't leak memory or run out of it. Especially on Android where you get so little to begin with. Now of course sometimes the answer is that you…

Handling memory leaks in Java programs Find out when memory leaks are a concern and how to prevent them   Published on February 01, 2001 How memory leaks manifest themselves in Java programs Most programmers know that one of the beauties of using a p…

本文是<The Java Native Interface Programmer's Guide and Specification>读书笔记 JNI里的多线程 在本地方法里写有关多线程的代码时,需要知道下面几个约束: 一个JNIEnv指针只在与它关联的线程里有效,也就是说,在线程间传递JNIEnv指针和在多线程环境里通过缓存来使用它是不允许和不安全的.JVM在同一个线程里多次调用同一个本地方法时传递的是同一个JNIEnv指针,但在不同的线程里调用同一个本地方法时传递的是不同的JNIEnv指针…

本文是<The Java Native Interface Programmer's Guide and Specification>读书笔记 JNI支持将类实例和数组类型(如jobject,jclass,jstring,jarray)作为不透明的引用.本地代码不直接检查不透明指针的内容,而是通过使用JNI方法来得到一个指向数据结构的指针的不透明引用.也就是说JNI操作的内容都是引用,因此我们只需要知道在JNI中有哪些引用.JNI支持三种不透明的引用:本地引用.全局引用,弱全局引用. 本地引用…

不可行的方法最初我直接修改catalina.sh, 将JAVA_OPTS变量加上了 -server -Xms1G -Xmx1G -XX:+UserG1GC最初看起来没啥问题,但是当服务器运行几天后,发现执行shutdown.sh无法关闭tomcat, 错误信息如下: # root@iZ94hjppdqzZ:~/projects/taolijie# cat hs_err_pid5519.log # There is insufficient memory for the Java Runtime…