Advertisement
Published in:
2010 | OriginalPaper | Chapter
Parallel Execution
Authors : Steve Shaw, Martin Bach
Published in: Pro Oracle Database 11g RAC on Linux
Publisher: Apress
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Parallel Execution is a feature of the Oracle Database that enables the division of certain database operations into multiple subtasks that operate simultaneously. The goal of this approach is to complete these tasks more quickly than if they were executed serially as a single task. Parallel Execution has the potential to improve performance and response times by harnessing more of a system's hardware resources (see Chapter 4 for more information on hardware resources) to complete the task at hand. Parallel Execution enables singe-instance environments by utilize more of a system's CPU cores, memory, and I/O in a single operation. However, Parallel Execution is particularly relevant to RAC because it enables operations to be processed beyond the resource capabilities of a single node, letting you leverage the CPU, memory, and I/O capability of the entire cluster (if desired) to complete a single operation.