java memory profiler eclipse

area is to hold an instance of the object. The Java heap is the primary area of the GC and is sometimes referred to as a "GC heap." The Java heap can also be subdivided: the new Generation and the old: Another detail can be divided into Eden space, from Survivor space, to survivor space and so on. Although it is divided into multiple spaces, it is still the object, which is designed to reclaim

I am using the latest version of Eclipse Java EE Kepler (v4.3.0). After JBoss Developer Studio 7 (Kepler) is installed, I start Eclipse again. the error "Failed to create the Java Virtual Machine" is displayed. The system automatically exits after confirmation.Cause analysis:After JBoss Developer Studio 7 (Ke

1:GC Log OutputAdd-xx:+printgc-xx:+printgcdetails-xx:+printgctimestamps-xx:+printgcapplicationstopedtime to the JVM startup parameters, The JVM will output GC profile, details, GC time information, and application pause times caused by GC in these parameter sequences. If you add the parameter-XLOGGC: file path After the parameter, the GC information will be output to the specified file. Other parameters are-VERBOSE:GC and-xx:+printtenuringdistribution and so on.2:jconsoleJconsole is a

Eclipse install Java anti-compile pluginPreface: In the actual development almost will use some framework to assist the project development work, for some framework code we always have some curious heart, want to find out, the source of course better, for some of the code in the jar package we need to use the Anti-compilation tool to look at, Here is a common way I used to install the

All along, you want to read the source code of some Java open source projects, and even want to modify some of the code to achieve the open source project for two times the purpose of development. But always do not know where to start, directly to the source project source code into eclipse, will always report many errors, and can not compile. can open the source code of open source project directly through

Sometimes when you install Eclipse, the startup encounters a problem like "failed to create the Java Virtual machine".(a) Baidu a bit found the main solution is as follows:Steps to resolve:1. Open the configuration file Eclipse.ini of the Eclipse decompression directory;2. Find--launcher. Xxmaxpermsize256MAnd instead--launcher. Xxmaxpermsize128MNote: This value c

, but I tried, the result is the crash, finally eclipse did not respond, and so on for a long time, forced shutdown.I put the code on, but the runtime may crash, and everyone is careful. Public classjavavmstacksof {Private void Dontstop() { while(true) {} } Public void Stackleakbythread() { while(true) {Thread th =NewThread (NewRunnable () {@Override Public void Run() {dontstop (); } } ); Th.start (); }

, each have pros and cons, in fact, if in the development environment, the use of what kind of tools is irrelevant, as long as the results can be good. However, in the production environment, but can not be arbitrarily selected, because these tools themselves will consume a lot of system resources, if the pressure on a production server, the hasty implementation of these tools, may cause a very unexpected situation. It is best not to monitor the server, remote monitoring will be better, but if y

......................................................................................................................... .................................................... Snapshot resolved. Started HTTP Server on port 7000Server are ready. after successful execution, accesshttp://localhost:7000to view memory information, MAT (Memory Analyzer tool): An Eclipse