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Jupiter JVM
Jupiter JVM is an open-source software, open-source Java virtual machine, which has been developed as a master thesis with modularity and extensibility in mind. It uses Boehm garbage collector and GNU Classpath. The Jupiter Virtual Machine main aspects of its design can be simplified as: *Memory locality - Objects are allocated on the heap with little or no consideration for locality. While this approach may be appropriate for uniprocessors or small-scale SMPs, it is unlikely to work well on a cluster of workstations where remote memory access is one or two orders of magnitude slower than local memory access. *Parallel garbage collection - Garbage collection can consume a considerable amount of application time. Typically, JVMs employ "stop-the-world" garbage collectors, where program threads are halted during garbage collection. This approach will not work for large numbers of processors, for two reasons. First, the cost of "stopping the world" is considerably higher when the numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Java Virtual Machine
A Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages that are also compiled to Java bytecode. The JVM is detailed by a specification that formally describes what is required in a JVM implementation. Having a specification ensures interoperability of Java programs across different implementations so that program authors using the Java Development Kit (JDK) need not worry about idiosyncrasies of the underlying hardware platform. The JVM reference implementation is developed by the OpenJDK project as open source code and includes a JIT compiler called HotSpot. The commercially supported Java releases available from Oracle are based on the OpenJDK runtime. Eclipse OpenJ9 is another open source JVM for OpenJDK. JVM specification The Java virtual machine is an abstract (virtual) computer defined by a specification. It is a part of java runtime environment. The garbage-collection algorithm u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
