International Business Machines Corporation

Lan Pham

Matthew Albert Huras

James Liam Finnie

Adam J Storm

Sam Sampson Lightstone

Maheswaran Surendra

Christian Marcelo Garcia-Arellano

Yixin Diao

Aamer U Sachedina

Daniele Costante Zilio

Gary Valentin

Sunil Jeevananda Kamath

Kevin R Rose

Roger Luo Quan Zheng

Taavi Andrew Burns

Liam James Finnie

Methods and systems are provided for tuning memory allocated among a plurality of applications in a data processing system. In one implementation, the method includes generating memory benefit data for the plurality of applications, comparing the generated memory benefit data associated with each of the plurality of applications, and dynamically reallocating memory from one or more of the plurality of applications to one or more other of the plurality of applications based on the comparison. A method and system is also provided for tuning memory allocated among a plurality of individual memory consumers for a given application.

Method and apparatus for distributing memory in a data processing system

A system is provided that includes processing logic and a memory management module. The memory management module is configured to allocate a portion of memory space for a thread stack unit and to partition the thread stack unit to include a stack and a thread-local storage region. The stack is associated with a thread that is executable by the processing logic and the thread-local storage region is adapted to store data associated with the thread. The portion of memory space allocated for the thread stack unit is based on a size of the thread-local storage region that is determined when the thread is generated and a size of the stack.

System and method of using threads and thread-local storage

A method and system for improving memory access patterns of software systems on NUMA systems discovers NUMA system resources where the NUMA system resources comprises a plurality of NUMA nodes; determines a plurality of database threads, processes, and objects for a database configuration; and generates a policy which assigns the plurality of database threads, processes, and objects to the plurality of NUMA nodes, wherein the generating of the policy is performed prior to initialization of the plurality of database threads, processes, and objects. The assignment of the database threads, processes, or objects to NUMA nodes is such that the amount of remote memory accesses is reduced. When the database thread, process, or object initializes, the database server queries the policy for its assigned NUMA node(s). The database thread, process, or object is then bound to the assigned NUMA node(s).

System and method for optimally configuring software systems for a NUMA platform

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Markham, Canada

Lan Pham