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 HP-UX Virtual Partitions Administrator’s Guide > Chapter 8 CPU, Memory, and I/O Resources (A.03.xx)

CPU: Managing I/O Interrupts
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This section describes information you need if you are managing I/O interrupts on a vPars-enabled system. Note that migrating interrupts should only be done by advanced administrators for performance tuning.

intctl Command

The intctl command is a HP-UX tool that allows you to manage I/O interrupts among active CPUs.

For HP-UX 11i v1, intctl is not installed by default with HP-UX, but you can obtain the software for intctl from the HP-UX Software Pack for 11i v1. Software Pack is available from the Software Pack DVD included with the HP-UX 11i OE DVDs or from the Software Depot website at:

http://www.hp.com/go/softwaredepot

For more information, see the Interrupt Migration Product Note available at http://docs.hp.com or see the intctl(1M) manpage.

Notes

  • Interrupts are processed only by bound CPUs.

  • Therefore, when managing I/O interrupts with intctl, you can manage the I/O interrupts only among the bound CPUs.

  • Further, disabling interrupts on a bound CPU does not convert the bound CPU into an unbound CPU.



CPU: Adding, Removing, and Migrating Unbound CPUs
  		 


CPU: Dual-Core Processors  
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