RT Get CPU Loads VI

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LabVIEW 2009 Real-Time Module Help

Edition Date: June 2009

Part Number: 370622G-01

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Owning Palette: RT Utilities VIs

Requires: RT Module

Monitors the distribution of load on the CPUs in the system. For each CPU in the system, this VI returns the total load as a percentage of capacity. This VI also returns the percentage of CPU time devoted to each priority level, the percentage of idle CPU time, and the percentage of CPU time devoted to Timed Structures and interrupt service routines (ISRs).

error in (no error) describes error conditions that occur before this node runs. This input provides standard error in functionality.

CPU loads returns data corresponding to the distribution of load for each CPU in the system. The Nth element of this array corresponds to the Nth CPU in the system. CPU numbering begins at zero.

	Total (%)—Returns the total CPU usage as a percentage of capacity.
	Time Critical (%)—Returns the CPU usage devoted to time-critical threads as a percentage of total CPU capacity.
	Timed Structures (%)—Returns the CPU usage devoted to timed structures as a percentage of total CPU capacity.
	High (%)—Returns the CPU usage devoted to high priority threads as a percentage of total CPU capacity.
	Above Normal (%)—Returns the CPU usage devoted to above normal priority threads as a percentage of total CPU capacity.
	Normal (%)—Returns the CPU usage devoted to normal priority threads as a percentage of total CPU capacity.
	Background (%)—Returns the CPU usage devoted to background priority threads as a percentage of total CPU capacity.
	Idle (%)—Returns the amount of idle CPU time as a percentage of total CPU capacity.
	ISR (%)—Returns the CPU usage devoted to interrupt service routines (ISRs) as a percentage of total CPU capacity.

error out contains error information. This output provides standard error out functionality.