virtual processor

At any time, the concurrency level of a scheduler is equal to the number of virtual processor granted to it by the Resource Manager.

For reasons of donation or sharing, the allocated cycles for a virtual processor might be different from the actual cycles consumed.

A virtual processor is an abstraction for a processing resource and maps to a hardware thread on the underlying system.

Each virtual processor has capacity ranging from 10 percent of the physical processor up to the entire physical processor.

You can also add a Virtual Processor when needed through this screen by selecting Add at the bottom of the screen.

Note: Binding a CPU virtual processor to a processor does not prevent other processes from running on that processor.

Blocks the currently executing thread proxy until it can be resumed by an available virtual processor root.

The VPA is a two-way communication zone between the operating system and the hypervisor on information required about the virtual processor.

The hypervisor stores the entire processing cycles of a virtual processor in the shared pool.

Returns an identifier for the virtual processor that the context is currently executing on.

Say you uncapped this partition. If the max CPU in the virtual processor section stayed the same, it could still not grab extra CPU cycles.

If another virtual processor needs that lock and has excess cycles, it confers those to the first processor through this call.

A virtual processor is a process that the operating system schedules for processing.

If not, all resources are used in the virtual processor, saving all of them from a virtual processor context switch.

This partial physical processor that is allocated is called a virtual processor.

You can use the environment variable KAIOON to control the number of requests allocated per CPU virtual processor.

The OS maintains an area for each virtual processor called Virtual Processor Area (VPA).

Desired number of virtual processors: You can assign a virtual processor to every 0. 1 processing unit allocated to the LPAR.

Hence, the PUR register, introduced in POWER5, stores the actual cycles consumed by each virtual processor.

Listing 1 shows the lparcfg file for the partition after adding the virtual processor.

LPAR2 is allocated one virtual processor with a 0. 5 processing unit.

There are no conditions under which a single virtual processor will consume more then 1. 0 physical processor.

Each virtual processor in LPAR3 has 0. 75 processing power.

For example, assume one virtual processor is holding a lock and does not have enough cycles to release that lock.

Embedded System Verification and Software Development Environment Based on Virtual Processor

Do this by specifying NET as the virtual processor (VP) class in the NETTYPE configuration parameter. For example, you can specify