CpuHeadroomParams.Builder
public
static
final
class
CpuHeadroomParams.Builder
extends Object
Summary
Public constructors | |
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Builder()
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Builder(CpuHeadroomParams params)
Returns a new builder copy with the same values as the params. |
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Public methods | |
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CpuHeadroomParams
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build()
Builds the |
CpuHeadroomParams.Builder
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setCalculationType(int calculationType)
Sets the headroom calculation type. |
CpuHeadroomParams.Builder
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setCalculationWindowMillis(int windowMillis)
Sets the headroom calculation window size in milliseconds. |
CpuHeadroomParams.Builder
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setTids(int... tids)
Sets the thread TIDs to track. |
Inherited methods | |
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Public constructors
Builder
public Builder (CpuHeadroomParams params)
Returns a new builder copy with the same values as the params.
| Parameters | |
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params |
CpuHeadroomParams: This value cannot be null. |
Public methods
build
public CpuHeadroomParams build ()
Builds the CpuHeadroomParams object.
| Returns | |
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CpuHeadroomParams |
This value cannot be null. |
setCalculationType
public CpuHeadroomParams.Builder setCalculationType (int calculationType)
Sets the headroom calculation type.
| Parameters | |
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calculationType |
int: Value is one of the following:
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| Returns | |
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CpuHeadroomParams.Builder |
This value cannot be null. |
| Throws | |
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IllegalArgumentException |
if the type is invalid. |
setCalculationWindowMillis
public CpuHeadroomParams.Builder setCalculationWindowMillis (int windowMillis)
Sets the headroom calculation window size in milliseconds.
| Parameters | |
|---|---|
windowMillis |
int: the window size in milliseconds ranges from
SystemHealthManager.getCpuHeadroomCalculationWindowRange().
The smaller the window size, the larger fluctuation in the headroom
value should be expected. The default value can be retrieved from
the CpuHeadroomParams.getCalculationWindowMillis. The device
will try to use the closest feasible window size to this param.
Value is 1 or greater |
| Returns | |
|---|---|
CpuHeadroomParams.Builder |
This value cannot be null. |
| Throws | |
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IllegalArgumentException |
if the window is invalid. |
setTids
public CpuHeadroomParams.Builder setTids (int... tids)
Sets the thread TIDs to track.
The TIDs should belong to the same of the process that will make the headroom call. And they should not have different core affinity.
If not set or set to empty, the headroom will be based on the PID of the process making the call.
| Parameters | |
|---|---|
tids |
int: non-null list of TIDs, where maximum size can be read from
SystemHealthManager.getMaxCpuHeadroomTidsSize(). |
| Returns | |
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CpuHeadroomParams.Builder |
This value cannot be null. |