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IBM Data and AI Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. 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).


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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.

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IBM Employees should enter Ideas at https://ideas.ibm.com


Status Not under consideration
Workspace Db2
Created by Guest
Created on Feb 10, 2015

Victimization of unused compression dictionaries from DBHEAP(RIMS)

Compression and Expansion dictionaries for each object (table, index) remain in memory until database deactivation time. This is problematic because enough DBHEAP must be allocated to host a compression/expansion dictionary for EACH object that is accessed before the next database deactivation. Ideally, we would like to see a victimization algorithm where seldom used dictionaries are removed from memory to make way for recently accessed dictionaries. This will keep the DBHEAP memory requirement down, which reduces total cost of ownership.