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Effect of Configuration on CPU Utilization
In This Chapter
UNIX Configuration Parameters That Affect CPU Utilization (UNIX)
UNIX Semaphore Parameters
UNIX File-Descriptor Parameters
UNIX Memory Configuration Parameters
Windows Configuration Parameters That Affect CPU Utilization (Windows)
Configuration Parameters and Environment Variables That Affect CPU Utilization
VPCLASS and Other CPU-Related Parameters
VPCLASS
Number of CPU Virtual Processors
MULTIPROCESSOR
SINGLE_CPU_VP
Process Priority Aging
Processor Affinity
Number of AIO Virtual Processors
OPTCOMPIND
SET ENVIRONMENT OPTCOMPIND
MAX_PDQPRIORITY
DS_MAX_QUERIES
DS_MAX_SCANS
NETTYPE
Specifying the Connection Protocol
Specifying Virtual-Processor Classes for Poll Threads
Specifying Number of Connections and Number of Poll Threads
Network Buffer Pools
NETTYPE Configuration Parameter
IFX_NETBUF_PVTPOOL_SIZE Environment Variable
IFX_NETBUF_SIZE Environment Variable
Virtual Processors and CPU Utilization
Adding Virtual Processors
Monitoring Virtual Processors
Using Command-Line Utilities
Using ISA
Using SMI Tables
Connections and CPU Utilization
Multiplexed Connections
MaxConnect for Multiple Connections (UNIX)
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