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Virtual Processors and Threads

In This Chapter

Virtual Processors

Types of Virtual Processors

Advantages of Virtual Processors

Sharing Processing

Saving Memory and Resources

Processing in Parallel

Adding and Dropping Virtual Processors in Online Mode

Binding Virtual Processors to CPUs

How Virtual Processors Service Threads

Control Structures

Context Switching

Virtual-Processor Classes

CPU Virtual Processors

Determining the Number of CPU Virtual Processors Needed

Running on a Multiprocessor Computer

Running on a Single-Processor Computer

Adding and Dropping CPU Virtual Processors in Online Mode

Preventing Priority Aging

Using Processor Affinity

Disk I/O Virtual Processors

Logical-Log I/O

Physical-Log I/O

Asynchronous I/O

Network Virtual Processors

Specifying Network Connections

Running Poll Threads on CPU or Network Virtual Processors

Number of Networking Virtual Processors Needed

Listen and Poll Threads for the Client/Server Connection

Starting Multiple Listen Threads

First-In-First-Out Virtual Processor

Communications Support Module Virtual Processor

Miscellaneous Virtual Processor

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