Comparison of 32-bit and 64-bit Oracle Database Performance on the Dell PowerEdge 6850 Server with Microsoft Windows Server 2003Posted: 12/02/2011 | |
In 32-bit mode, faster processor speeds, faster bus performance, and faster components throughout will contribute to improved performance.
In 64-bit mode, there are additional performance advantages that can be attributed to the superiority of the 64-bit processing model over the 32-bit processing model. In particular, Oracle instances that utilize System Global Area memory allocations larger than 4 GB will benefit from improvements in the handling of Very Large Memory with the 64-bit architecture.
While the advantages of 64-bit architecture for large System Global Areas (SGA) are fairly well known, it is less commonly understood how the 64-bit model will benefit user scalability.
With the 32-bit implementation of Very Large Memory for Microsoft Windows, it is difficult to scale Oracle to support large user populations. The 64-bit version of Microsoft Windows Server 2003 will support scalability for large user populations.
Dell commissioned Performance Tuning Corporation to compare the performance of Oracle databases on 32-bit Microsoft Windows Server 2003 and 64-bit Oracle databases on the Microsoft Windows Server 2003 version for the EM64T processor.
Test results for scaling both 32-bit and 64-bit versions of Oracle databases for large user populations will be discussed.
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