Class SystemCpuUsage
Definition
- Assembly:
- Tizen.System.Information.dll
The class for CPU usage information of the system.
public class SystemCpuUsage- Inheritance
-
objectSystemCpuUsage
Constructors
View SourceSystemCpuUsage()
The constructor of SystemCpuUsage class. It internally call Update() on constructing an instance.
Declaration
public SystemCpuUsage()Exceptions
| Type | Condition |
|---|---|
| System.IO.IOException | Thrown when an I/O error occurs while reading from the system. |
| System.NotSupportedException | Thrown when this system does not store the current CPU frequency. |
Properties
View SourceIoWait
Time waiting for I/O completion (Percent). To get the latest value, it is recommended to call Update() before it.
Declaration
public double IoWait { get; }Property Value
| Type | Description |
|---|---|
| double |
Nice
Running time of niced user processes (Percent). To get the latest value, it is recommended to call Update() before it.
Declaration
public double Nice { get; }Property Value
| Type | Description |
|---|---|
| double |
ProcessorCount
The number of processors.
Declaration
public int ProcessorCount { get; }Property Value
| Type | Description |
|---|---|
| int |
System
Running time of kernel processes (Percent). To get the latest value, it is recommended to call Update() before it.
Declaration
public double System { get; }Property Value
| Type | Description |
|---|---|
| double |
User
Running time of un-niced user processes (Percent). To get the latest value, it is recommended to call Update() before it.
Declaration
public double User { get; }Property Value
| Type | Description |
|---|---|
| double |
Methods
View SourceGetCurrentFrequency(int)
Gets the current frequency of the processor. To get the latest value, it is recommended to call Update() before it.
Declaration
public int GetCurrentFrequency(int coreId)Parameters
| Type | Name | Description |
|---|---|---|
| int | coreId | The index (from 0) of the CPU core that you want to know the frequency of. |
Returns
| Type | Description |
|---|---|
| int | The current frequency(MHz) of processor. |
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentException | Thrown when the |
GetMaxFrequency(int)
Gets the max frequency of the processor. To get the latest value, it is recommended to call Update() before it.
Declaration
public int GetMaxFrequency(int coreId)Parameters
| Type | Name | Description |
|---|---|---|
| int | coreId | The index (from 0) of CPU core that you want to know the frequency of. |
Returns
| Type | Description |
|---|---|
| int | The max frequency(MHz) of processor. |
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentException | Thrown when the |
Update()
Update the system CPU usage information to the latest.
Declaration
public void Update()Exceptions
| Type | Condition |
|---|---|
| System.IO.IOException | Thrown when an I/O error occurs while reading from the system. |
| System.NotSupportedException | Thrown when this system does not store the current CPU frequency. |