Java Magazine, Sept/Oct 2018
Java on Arm Processors Arm already is a leading architecture for IoT and embedded processors Recent 64 bit releases are pushing Arm CPUs onto servers where they have full JDK support ORACLE COM JAVAMAGAZINE SEPTEMBER OCTOBER 2018 54 the leading edge Today Arm based processors primarily are viewed as targeting the embedded market because they offer sufficient performance while keeping power consumption low But many hardware vendors are now using this architecture to build server CPUs and to compete with x86 architecture in the cloud and in the high performance computing HPC market This range of deployment platforms adds to the complexity of the Java Arm port because the port must support a variety of CPU vendors and workloads In this article I explore the evolution of Java and the Java ecosystem and their status on Arm architectures I also discuss some recent developments in Java features and performance for Arm processors emphasizing both server and IoT embedded deployments The company behind Arm processors Arm Limited is transitioning its brand from the acronym ARM to Arm and arm We use the traditional capitalized form ARM when referring to specific processor models and Arm in all other instances Ed The State of the Arm Architecture Leaving aside the embedded and mobile markets where Arm dominates with its 32 bit ARMv5 ARMv6 ARMv7 and ARMv8 instruction set architectures ISAs its no longer stretching the point to say that Arm provides a viable alternative for markets that are currently dominated by the x86 architecture Unlike microprocessor vendors such as Intel that focus on shipping processors Arm is primarily an architecture design company selling architectural and core licenses to its customers which turn that intellectual property into actual silicon This model allows a great variety of actual implementations of the same architecture to coexist and compete in different market segments ALEKSEI VOITYLOV
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