IBM Z Hardware and Operating Systems Ideas Portal
Hide about this portal


This is the public portal for all IBM Z Hardware and Operating System related offerings. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,

Post your ideas

  1. Post an idea.

  2. Get feedback from the IBM team and other customers to refine your idea.

  3. Follow the idea through the IBM Ideas process.


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

Add a new idea Subscribe
Status Under review
Workspace z/OS
Categories z/OSMF
Created by Guest
Created on Jan 11, 2025

RELATED IDEAS

have z/OSMF exploit shared libraries - todayit is just enabled

The default for Java shared library support is to store the information in memory. This means the first time a Java program is started it loads the libraries, and saves the information in memory. The second time the Java program is started it can benefit from the shared libraries in memory. If z/OSMF is only started once per IPL, the shared library support adds nothing.

To exploit shared library support, you can harden the in-memory data. This is saved across IPL. After the system is IPLED, you can load the information back into memory. Now when z/OSMF is started it can benefit from the shared library information, and so start much faster. You should be able to save half the CPU. See https://colinpaice.blog/2023/08/26/turbo-start-your-java-program-on-z-os-and-save-a-bucket-of-cpu/


It would be good if IBM could ship the saved shared library information, so customers get "optimised" shared code from day 1 -this may not be possible.


The same technique could be used for ZOWE as well.

Idea priority High
  • Guest
    Reply
    |     Feb 6, 2025
    .When z/OSMF ships any PTFs, the cached classes will be outdated and can cause other issues. For this reason, we won't be able to accept this requirement. Please let me know if there is any question.

    Also, "System Recovery Boost" capability offered by newer level of Z machines, can speed up z/OSMF bring up at IPL time.
    https://www.ibm.com/support/z-content-solutions/system-recovery-boost/
    1 reply

By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.