Class SystemCpuUsage

Definition

Namespace:
Tizen.System
Assembly:
Tizen.System.Information.dll
API Level:
4

The class for system CPU usage.

public class SystemCpuUsage
Inheritance
Object
SystemCpuUsage

Constructors

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SystemCpuUsage()

The constructor of SystemCpuUsage class.

Declaration
public SystemCpuUsage()
Exceptions
Type Condition
IOException

Thrown when an I/O error occurs while reading from the system.
NotSupportedException

Thrown when this system does not store the current CPU frequency.
API Level: 4

Properties

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IoWait

Time waiting for I/O completion (Percent).

Declaration
public double IoWait { get; }
Property Value
Type Description
Double
API Level: 4
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Nice

Running time of niced user processes (Percent).

Declaration
public double Nice { get; }
Property Value
Type Description
Double
API Level: 4
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ProcessorCount

The number of processors.

Declaration
public int ProcessorCount { get; }
Property Value
Type Description
Int32
API Level: 4
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System

Running time of kernel processes (Percent).

Declaration
public double System { get; }
Property Value
Type Description
Double
API Level: 4
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User

Running time of un-niced user processes (Percent).

Declaration
public double User { get; }
Property Value
Type Description
Double
API Level: 4

Methods

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GetCurrentFrequency(Int32)

Gets the current frequency of the processor.

Declaration
public int GetCurrentFrequency(int coreId)
Parameters
Type Name Description
Int32 coreId

The index (from 0) of the CPU core that you want to know the frequency of.
Returns
Type Description
Int32

The current frequency(MHz) of processor.
Exceptions
Type Condition
ArgumentException

Thrown when the coreId is invalid.
API Level: 4
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GetMaxFrequency(Int32)

Gets the max frequency of the processor.

Declaration
public int GetMaxFrequency(int coreId)
Parameters
Type Name Description
Int32 coreId

The index (from 0) of CPU core that you want to know the frequency of.
Returns
Type Description
Int32

The max frequency(MHz) of processor.
Exceptions
Type Condition
ArgumentException

Thrown when the coreId is invalid.
API Level: 4
View Source

Update()

Update the system CPU usage to the latest.

Declaration
public void Update()
Exceptions
Type Condition
IOException

Thrown when an I/O error occurs while reading from the system.
NotSupportedException

Thrown when this system does not store the current CPU frequency.
API Level: 4