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    Getting to Know Graal, the New Java JIT Compiler

    by Ben Evans Follow 32 Followers on  Jul 16, 2018 6

    Oracle has released Graal, which is both a new JIT compiler for Java and a major component in their next-generation polyglot virtual machine, GraalVM. The effort aims to improve startup time and reduce footprint of Java applications as well as unlock fully polyglot, multi-language technologies within a single VM. The initial release includes JVM and JS with LLVM, Ruby and R in beta.

  • Java Follow 1106 Followers

    Secrets of the Bytecode Ninjas

    by Ben Evans Follow 32 Followers on  Mar 24, 2015

    The Java language is defined by the Java Language Specification. But the executable bytecode of the Java Virtual Machine is defined by a completely separate standard, the Java Virtual Specification, and the two are often at odds. In this article we take a look at the structure of a class file and how to create class files directly without starting from Java source, using the ASM library.

  • Followers

    Is Your Java Application Hostile to JIT Compilation?

    by Ben Evans Follow 32 Followers on  Nov 21, 2014

    ​One of the most important parts of the JVM is the Just-In-Time (JIT) compiler. However, many applications are not written to take full advantage of the high-performance capabilities of the JIT. In this article we investigate some simple tricks to identify issues that may be making your application unfriendly to JIT.

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