Java, Semeru Runtimes and Runtimes for Business

Java, Semeru Runtimes and Runtimes for Business

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Unlock IBM z17 Java performance with IBM Semeru Runtimes

  • 1.  Unlock IBM z17 Java performance with IBM Semeru Runtimes

    Posted Thu April 24, 2025 02:31 PM
    Edited by Joran Siu Tue May 27, 2025 09:00 AM

    The launch of a new IBM Z hardware is always a significant milestone for Java on the platform. We are excited to share that the upcoming releases of IBM Semeru Runtimes for z/OS and Linux on Z will unleash the full power of the new IBM z17 for your Java workloads. Java application benchmarks on z/OS can achieve an average throughput improvement of up to 14% when running with IBM Semeru Runtime 17.0.15 on IBM z17 as compared to IBM Semeru Runtime 11.0.15 on similarly configured IBM z16.3  With the Java Virtual Machine's (JVM) ability to detect and optimize for the host hardware, Java workloads can take advantage of the performance capabilities of IBM z17 without any application changes. This accelerates time-to-value of your hardware investments, while minimizing development and testing efforts.

    IBM z17 support is planned to be released under the upcoming IBM Semeru Runtimes and IBM SDK for Java releases* for both z/OS and Linux on IBM Z:

    • IBM Semeru Runtimes 21.0.7
    • IBM Semeru Runtimes 17.0.15
    • IBM Semeru Runtimes 11.0.27
    • IBM SDK, Java Technology Edition, 8 SR8 FP45

    For more details, please see: https://community.ibm.com/community/user/ibmz-and-linuxone/blogs/joran-siu/2025/04/01/semeru-ibmz17

    Disclaimers:

    1. All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only.

    2. Performance results shared are based on measurements using standard IBM benchmarks in a controlled environment. Results may vary.

    3. Performance results based on IBM internal tests comparing the latest IBM Semeru Runtimes 17.0.15.0 on IBM z17 vs then current Semeru Runtimes 11.0.15.0 on IBM z16 when originally released. The geometric mean was calculated based on tests running multiple Java Store Inventory Point-of-Sale configurations, GZIP based compression benchmarks, benchmark based on JZOS Medicare Record, DaCapo benchmark suite and Liberty Daytrader running both SSL and No SSL Scenarios. Liberty Daytrader used IBM Liberty 24.0.0.12, Db2v13 as a data store, and JMETER to drive the workload with both SSL Session Reuse and SSL Session No Reuse scenarios. For all measurements, z/OS 3.1 was used.



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