com.facebook.battery.metrics.cpu

Class CpuMetrics

java.lang.Object

com.facebook.battery.metrics.api.SystemMetrics<CpuMetrics>

com.facebook.battery.metrics.cpu.CpuMetrics

All Implemented Interfaces:

java.io.Serializable

public class CpuMetrics
extends SystemMetrics<CpuMetrics>

Information about system and user cpu metrics: maintains a double per type of CPU time.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
double	childSystemTimeS
double	childUserTimeS
double	systemTimeS
double	userTimeS

Constructor Summary

Constructors

Constructor and Description
CpuMetrics()

Method Summary

Modifier and Type	Method and Description
CpuMetrics	diff(CpuMetrics b, CpuMetrics output) Subtract the object passed in from the current object.
boolean	equals(java.lang.Object other)
int	hashCode()
CpuMetrics	set(CpuMetrics metrics) Sets all fields in this to values from the SystemMetrics object passed in: a _deep_ copy that shouldn't share any values with other metrics objects.
CpuMetrics	sum(CpuMetrics b, CpuMetrics output) Add values from the SystemMetrics object passed in and sets them on the output object, if available.
java.lang.String	toString()

Methods inherited from class com.facebook.battery.metrics.api.SystemMetrics

diff, sum

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

userTimeS

public double userTimeS

systemTimeS

public double systemTimeS

childUserTimeS

public double childUserTimeS

childSystemTimeS

public double childSystemTimeS

Constructor Detail

CpuMetrics

public CpuMetrics()

Method Detail

set

public CpuMetrics set(CpuMetrics metrics)

Description copied from class: SystemMetrics

Sets all fields in this to values from the SystemMetrics object passed in: a _deep_ copy that shouldn't share any values with other metrics objects.

Specified by:

set in class SystemMetrics<CpuMetrics>

Returns:

this

sum

public CpuMetrics sum(@Nullable
                      CpuMetrics b,
                      @Nullable
                      CpuMetrics output)

Description copied from class: SystemMetrics

Add values from the SystemMetrics object passed in and sets them on the output object, if available. Does not modify the original object. For convenience, this function accepts null values and will allocate an output object if none is passed in.

Specified by:

sum in class SystemMetrics<CpuMetrics>

Returns:

output set to (this + b)

diff

public CpuMetrics diff(@Nullable
                       CpuMetrics b,
                       @Nullable
                       CpuMetrics output)

Description copied from class: SystemMetrics

Subtract the object passed in from the current object. Does not modify the original object. For convenience, this function accepts null values and will allocate an output object if none is passed in.

Specified by:

diff in class SystemMetrics<CpuMetrics>

Returns:

output set to (this - b)

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object