Added in API level 1

Summary: Inherited Constants | Fields | Ctors | Methods | Inherited Methods

Debug.MemoryInfo

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Kotlin |Java

public static class Debug.MemoryInfo
extends Object implements Parcelable

java.lang.Object
↳	android.os.Debug.MemoryInfo

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This class is used to retrieved various statistics about the memory mappings for this process. The returned info is broken down by dalvik, native, and other. All results are in kB.

Summary

Inherited constants

From interface android.os.Parcelable int CONTENTS_FILE_DESCRIPTOR Descriptor bit used with describeContents(): indicates that the Parcelable object's flattened representation includes a file descriptor. int PARCELABLE_WRITE_RETURN_VALUE Flag for use with writeToParcel(Parcel, int): the object being written is a return value, that is the result of a function such as "Parcelable someFunction()", "void someFunction(out Parcelable)", or "void someFunction(inout Parcelable)".

Fields
public static final Creator<Debug.MemoryInfo>	CREATOR
public int	dalvikPrivateDirty The private dirty pages used by dalvik heap.
public int	dalvikPss The proportional set size for dalvik heap.
public int	dalvikSharedDirty The shared dirty pages used by dalvik heap.
public int	nativePrivateDirty The private dirty pages used by the native heap.
public int	nativePss The proportional set size for the native heap.
public int	nativeSharedDirty The shared dirty pages used by the native heap.
public int	otherPrivateDirty The private dirty pages used by everything else.
public int	otherPss The proportional set size for everything else.
public int	otherSharedDirty The shared dirty pages used by everything else.

Public constructors
MemoryInfo()

Public methods
int	describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
String	getMemoryStat(String statName) Returns the value of a particular memory statistic or null if no such memory statistic exists.
Map<String, String>	getMemoryStats() Returns a map of the names/values of the memory statistics that getMemoryStat(java.lang.String) supports.
int	getTotalPrivateClean() Return total shared clean memory usage in kB.
int	getTotalPrivateDirty() Return total private dirty memory usage in kB.
int	getTotalPss() Return total PSS memory usage in kB.
int	getTotalSharedClean() Return total shared clean memory usage in kB.
int	getTotalSharedDirty() Return total shared dirty memory usage in kB.
int	getTotalSwappablePss() Return total PSS memory usage in kB mapping a file of one of the following extension: .so, .jar, .apk, .ttf, .dex, .odex, .oat, .art .
void	readFromParcel(Parcel source)
void	writeToParcel(Parcel dest, int flags) Flatten this object in to a Parcel.

Inherited methods
From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
From interface android.os.Parcelable abstract int describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. abstract void writeToParcel(Parcel dest, int flags) Flatten this object in to a Parcel.

Fields

CREATOR

Added in API level 5

public static final Creator<Debug.MemoryInfo> CREATOR

dalvikPrivateDirty

Added in API level 1

public int dalvikPrivateDirty

The private dirty pages used by dalvik heap.

dalvikPss

Added in API level 1

public int dalvikPss

The proportional set size for dalvik heap. (Doesn't include other Dalvik overhead.)

dalvikSharedDirty

Added in API level 1

public int dalvikSharedDirty

The shared dirty pages used by dalvik heap.

nativePrivateDirty

Added in API level 1

public int nativePrivateDirty

The private dirty pages used by the native heap.

nativePss

Added in API level 1

public int nativePss

The proportional set size for the native heap.

nativeSharedDirty

Added in API level 1

public int nativeSharedDirty

The shared dirty pages used by the native heap.

otherPrivateDirty

Added in API level 1

public int otherPrivateDirty

The private dirty pages used by everything else.

otherPss

Added in API level 1

public int otherPss

The proportional set size for everything else.

otherSharedDirty

Added in API level 1

public int otherSharedDirty

The shared dirty pages used by everything else.

Public constructors

MemoryInfo

Added in API level 1

public MemoryInfo ()

Public methods

describeContents

Added in API level 5

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

getMemoryStat

Added in API level 23

public String getMemoryStat (String statName)

Returns the value of a particular memory statistic or null if no such memory statistic exists.

The following table lists the memory statistics that are supported. Note that memory statistics may be added or removed in a future API level.

Memory statistic name	Meaning	Example	Supported (API Levels)
summary.java-heap	The private Java Heap usage in kB. This corresponds to the Java Heap field in the App Summary section output by dumpsys meminfo.	1442	23
summary.native-heap	The private Native Heap usage in kB. This corresponds to the Native Heap field in the App Summary section output by dumpsys meminfo.	1442	23
summary.code	The memory usage for static code and resources in kB. This corresponds to the Code field in the App Summary section output by dumpsys meminfo.	1442	23
summary.stack	The stack usage in kB. This corresponds to the Stack field in the App Summary section output by dumpsys meminfo.	1442	23
summary.graphics	The graphics usage in kB. This corresponds to the Graphics field in the App Summary section output by dumpsys meminfo.	1442	23
summary.private-other	Other private memory usage in kB. This corresponds to the Private Other field output in the App Summary section by dumpsys meminfo.	1442	23
summary.system	Shared and system memory usage in kB. This corresponds to the System field output in the App Summary section by dumpsys meminfo.	1442	23
summary.total-pss	Total PSS memory usage in kB.	1442	23
summary.total-swap	Total swap usage in kB.	1442	23

Parameters
statName	String

Returns
String

getMemoryStats

Added in API level 23

public Map<String, String> getMemoryStats ()

Returns a map of the names/values of the memory statistics that getMemoryStat(java.lang.String) supports.

Returns
Map<String, String>	a map of the names/values of the supported memory statistics.

getTotalPrivateClean

Added in API level 19

public int getTotalPrivateClean ()

Return total shared clean memory usage in kB.

Returns
int

getTotalPrivateDirty

Added in API level 5

public int getTotalPrivateDirty ()

Return total private dirty memory usage in kB.

Returns
int

getTotalPss

Added in API level 5

public int getTotalPss ()

Return total PSS memory usage in kB.

Returns
int

getTotalSharedClean

Added in API level 19

public int getTotalSharedClean ()

Return total shared clean memory usage in kB.

Returns
int

getTotalSharedDirty

Added in API level 5

public int getTotalSharedDirty ()

Return total shared dirty memory usage in kB.

Returns
int

getTotalSwappablePss

Added in API level 19

public int getTotalSwappablePss ()

Return total PSS memory usage in kB mapping a file of one of the following extension: .so, .jar, .apk, .ttf, .dex, .odex, .oat, .art .

Returns
int

readFromParcel

Added in API level 5

public void readFromParcel (Parcel source)

Parameters
source	Parcel

writeToParcel

Added in API level 5

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest	Parcel: The Parcel in which the object should be written. This value cannot be null.
flags	int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES