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Debug.MemoryInfo

public static class Debug.MemoryInfo
extends Object implements Parcelable

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


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

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

Debug.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<StringString> getMemoryStats()

Returns a map of the names/values of the memory statistics that getMemoryStat(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
From interface android.os.Parcelable

Fields

CREATOR

Added in API level 5
Creator<Debug.MemoryInfo> CREATOR

dalvikPrivateDirty

Added in API level 1
int dalvikPrivateDirty

The private dirty pages used by dalvik heap.

dalvikPss

Added in API level 1
int dalvikPss

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

dalvikSharedDirty

Added in API level 1
int dalvikSharedDirty

The shared dirty pages used by dalvik heap.

nativePrivateDirty

Added in API level 1
int nativePrivateDirty

The private dirty pages used by the native heap.

nativePss

Added in API level 1
int nativePss

The proportional set size for the native heap.

nativeSharedDirty

Added in API level 1
int nativeSharedDirty

The shared dirty pages used by the native heap.

otherPrivateDirty

Added in API level 1
int otherPrivateDirty

The private dirty pages used by everything else.

otherPss

Added in API level 1
int otherPss

The proportional set size for everything else.

otherSharedDirty

Added in API level 1
int otherSharedDirty

The shared dirty pages used by everything else.

Public constructors

Debug.MemoryInfo

Added in API level 1
Debug.MemoryInfo ()

Public methods

describeContents

Added in API level 5
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(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.

getMemoryStat

Added in API level 23
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 PPS 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
Map<StringString> getMemoryStats ()

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

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

getTotalPrivateClean

Added in API level 19
int getTotalPrivateClean ()

Return total shared clean memory usage in kB.

Returns
int

getTotalPrivateDirty

Added in API level 5
int getTotalPrivateDirty ()

Return total private dirty memory usage in kB.

Returns
int

getTotalPss

Added in API level 5
int getTotalPss ()

Return total PSS memory usage in kB.

Returns
int

getTotalSharedClean

Added in API level 19
int getTotalSharedClean ()

Return total shared clean memory usage in kB.

Returns
int

getTotalSharedDirty

Added in API level 5
int getTotalSharedDirty ()

Return total shared dirty memory usage in kB.

Returns
int

getTotalSwappablePss

Added in API level 19
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
void readFromParcel (Parcel source)

Parameters
source Parcel

writeToParcel

Added in API level 5
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.
flags int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE.
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