InfoQ Homepage JIT Content on InfoQ
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Chicory - a WebAssembly Interpreter Written Purely in Java with Zero Native Dependencies
Recently, multiple languages have begun supporting compilation to WebAssembly (Wasm), allowing developers to build real polyglot systems. Chicory is a Wasm interpreter for the JVM with zero native dependencies and can run on any JVM. As wazero in the Go ecosystem, Chicory promises developers to safely interact with libraries written in any language supported by the Wasm ecosystem.
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GraalVM for JDK 21 Delivers Performance Enhancements and Improved Developer Experience
Oracle has recently announced the release of GraalVM for JDK 21. GraalVM is a JDK that uses an alternative just-in-time (JIT) compiler but it also includes a Native Image module, a technology that allows Java applications to run as native executables, without the need for a JVM. This can improve the performance of Java applications in terms of speed, memory, and size.
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Azul Launches Java Cloud Compiler
Azul has launched a cloud-native compiler, improving the time to peak performance for Java applications. By delegating JIT to an external system, applications can reach higher throughput, faster than when JIT is performed locally.
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C++ Interpreter Cling Embraces Python Interoperability and Jupyter Notebooks
Cling is an interactive C++ interpreter built on top of LLVM aiming to make C++ more suitable for exploration and rapid application development. In a recent series of articles, research software engineer Vassil Vassilev describes how they are evolving it to enable interoperability with Python, Jupyter Notebooks, and support for hardware accelerators.
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Browser Vendors Start Shipping WebAssembly by Default
The browser vendors working on WebAssembly have reached a "consensus" on an initial implementation set, allowing browsers to ship it on by default. While this is an important milestone, the initial implementation won't immediately result in significant uptake by developers as important features such as DOM integration and garbage collection are not yet part of the spec.
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How Facebook Redesigned the HHVM JIT Compiler for Performance
In the Summer of 2013, Facebook engineers started a major redesign of the HHVM JIT compiler that brought an overall 15% reduction of CPU usage on Facebook’s web servers. Facebook engineer Guilherme Ottoni has recently described how Facebook achieved that result by backing profile-guided optimizations (PGO) into their JIT compiler.
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Systems Programming in C#
Although the definition of system programming is fuzzy, it can be described as having to think at the bit, byte, instruction or CPU cycle level. Systems programming also implies demanding performance and reliability requirements. Joe Duffy, engineering director at Microsoft, presented strategies for system programming in C# at QCon New York. He also discusses pitfalls and how to mitigate them.
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Q&A with Mark Stoodley, Architect of Eclipse OMR Toolkit for Creating Language Runtimes
Mark Stoodley, Architect at IBM talks to Rags Srinivas about Eclipse OMR project, an open-source virtual machine toolkit to help create runtime environments for any language.
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Python JIT Compiler PyPy 4 Brings SMD Vectorization, Performance Improvements, and more
PyPy 4.0 is a new major version of Python Just-in-Time compiler, bringing many new features, such as SIMD vectorization support, warmup time improvements, and improvements to Numpy. PyPy claims to be more than six times faster than CPython.
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GCC 5.1 is Out
The GNU Project has announced the release of GCC 5.1. The first major release of GCC 5 comes with many new features and improvements, including improved support for C++11/14, a new libstdc++ ABI, and a machine-code JIT embeddable library.
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Microsoft Introduces LLILC, LLVM-based .NET/CoreCLR Compiler
The .NET Foundation has announced the release of a new project called LLILC (pronounced "lilac"). The project, initiallycontributed by Microsoft, aims to provide a new LLVM-based native code compiler for .NET Core which will make it possible to run .NET programs "on any platform that CoreCLR can be ported to and that LLVM will target."
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Microsoft's JavaScript Engine Learns New Tricks For Windows 10
The Internet Explorer team at Microsoft recently detailed changes to the JavaScript engine coming in Windows 10. A significant change is the addition of a second tier in the Just-in-Time (JIT) compiler to reduce startup time.
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Mono Gets Further Performance, Scalability Improvements
Mono 3.8.0 was released last week. It comes with several performance and scalability improvements across the runtime, as well as finishes the Windows port.
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RyuJIT CTP4 Adds Windows 7 Support
RyuJIT, Microsoft's project to produce an improved Just-in-Time compiler for .NET, has taken a big step forward on the compatibility front by adding support for Windows 7 and Windows Server 2008. Now developers on these platforms can test RyuJIT with their code.
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Azul ReadyNow! Seeks to Eliminate JVM Warm-up
Azul Systems announces the release of ReadyNow! in the latest version of Azul's Zing runtime for Java. Includes a series of algorithms designed to obviate the need for "warming-up" the Java Virtual Machine.