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Microsoft® SQL Server 2005: Changing the Paradigm (SQL Server 2005 Public Beta Edition) by Scalability Experts, Inc.

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Chapter 15. SQL Sever 2005 Support for 64-Bit Processors

IN THIS CHAPTER

64-Bit Processor Usage Scenarios

SQL Server 2005 (64-Bit) in Detail

One of the top reasons for insufficient performance and limited scalability is memory bottlenecks. A system’s being low on memory stresses both the disk and the processor. Excessive paging results in very high CPU utilization, increased queuing, and slow response times. Adding more memory to the server is one option for improving performance in such scenarios. However, there is a limit to the amount of RAM supported by servers. A server with a 32-bit processor has a limit on the directly addressable memory space of 4GB. This is because a 32-bit pointer cannot hold a memory address larger than 4GB (that ...

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