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Debug.InstructionCount
public
static
class
Debug.InstructionCount
extends Object
This class was deprecated
in API level 23.
Instruction counting is no longer supported.
API for gathering and querying instruction counts.
Example usage:
Debug.InstructionCount icount = new Debug.InstructionCount();
icount.resetAndStart();
[... do lots of stuff ...]
if (icount.collect()) {
System.out.println("Total instructions executed: "
+ icount.globalTotal());
System.out.println("Method invocations: "
+ icount.globalMethodInvocations());
}
Summary
Public methods |
|---|
boolean
|
collect()
Collect instruction counts.
|
int
|
globalMethodInvocations()
Return the total number of method-invocation instructions
executed globally.
|
int
|
globalTotal()
Return the total number of instructions executed globally (i.e.
|
boolean
|
resetAndStart()
Reset counters and ensure counts are running.
|
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.
|
|
Public constructors
InstructionCount
public InstructionCount ()
Public methods
collect
public boolean collect ()
Collect instruction counts. May or may not stop the
counting process.
globalMethodInvocations
public int globalMethodInvocations ()
Return the total number of method-invocation instructions
executed globally.
globalTotal
public int globalTotal ()
Return the total number of instructions executed globally (i.e. in
all threads).
resetAndStart
public boolean resetAndStart ()
Reset counters and ensure counts are running. Counts may
have already been running.
| Returns |
|---|
boolean |
true if counting was started |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-02-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10 UTC."],[],[],null,["# Debug.InstructionCount\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nDeprecated in [API level\n23](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nDebug.InstructionCount\n======================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/android/os/Debug.InstructionCount \"View this page in Kotlin\") \\|Java\n\n\n`\npublic\nstatic\n\n\nclass\nDebug.InstructionCount\n`\n\n\n`\n\nextends `[Object](/reference/java/lang/Object)`\n\n\n`\n\n`\n\n\n`\n\n|---|-----------------------------------|\n| [java.lang.Object](/reference/java/lang/Object) ||\n| ↳ | android.os.Debug.InstructionCount |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\n\n**This class was deprecated\nin API level 23.** \n\nInstruction counting is no longer supported.\n\nAPI for gathering and querying instruction counts.\n\nExample usage: \n\n```\n Debug.InstructionCount icount = new Debug.InstructionCount();\n icount.resetAndStart();\n [... do lots of stuff ...]\n if (icount.collect()) {\n System.out.println(\"Total instructions executed: \"\n + icount.globalTotal());\n System.out.println(\"Method invocations: \"\n + icount.globalMethodInvocations());\n }\n \n```\n\n\u003cbr /\u003e\n\nSummary\n-------\n\n| ### Public constructors ||\n|---------------------------------------------------------------------------------------------|---|\n| ` `[InstructionCount](/reference/android/os/Debug.InstructionCount#InstructionCount())`() ` |\n\n| ### Public methods ||\n|------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` boolean` | ` `[collect](/reference/android/os/Debug.InstructionCount#collect())`() ` Collect instruction counts. |\n| ` int` | ` `[globalMethodInvocations](/reference/android/os/Debug.InstructionCount#globalMethodInvocations())`() ` Return the total number of method-invocation instructions executed globally. |\n| ` int` | ` `[globalTotal](/reference/android/os/Debug.InstructionCount#globalTotal())`() ` Return the total number of instructions executed globally (i.e. |\n| ` boolean` | ` `[resetAndStart](/reference/android/os/Debug.InstructionCount#resetAndStart())`() ` Reset counters and ensure counts are running. |\n\n| ### Inherited methods |\n|-----------------------|---|\n| From class ` `[java.lang.Object](/reference/java/lang/Object)` ` |---------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](/reference/java/lang/Object) | ` `[clone](/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](/reference/java/lang/Object)` obj) ` Indicates whether some other object is \"equal to\" this one. | | ` void` | ` `[finalize](/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](/reference/java/lang/Class)`\u003c?\u003e` | ` `[getClass](/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this `Object`. | | ` int` | ` `[hashCode](/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](/reference/java/lang/String) | ` `[toString](/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long,%20int))`(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](/reference/java/lang/Object#wait(long))`(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](/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||\n\nPublic constructors\n-------------------\n\n### InstructionCount\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic InstructionCount ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### collect\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic boolean collect ()\n```\n\nCollect instruction counts. May or may not stop the\ncounting process.\n\n\u003cbr /\u003e\n\n| Returns ||\n|-----------|--------|\n| `boolean` | \u003cbr /\u003e |\n\n### globalMethodInvocations\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic int globalMethodInvocations ()\n```\n\nReturn the total number of method-invocation instructions\nexecuted globally.\n\n\u003cbr /\u003e\n\n| Returns ||\n|-------|--------|\n| `int` | \u003cbr /\u003e |\n\n### globalTotal\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic int globalTotal ()\n```\n\nReturn the total number of instructions executed globally (i.e. in\nall threads).\n\n\u003cbr /\u003e\n\n| Returns ||\n|-------|--------|\n| `int` | \u003cbr /\u003e |\n\n### resetAndStart\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic boolean resetAndStart ()\n```\n\nReset counters and ensure counts are running. Counts may\nhave already been running.\n\n\u003cbr /\u003e\n\n| Returns ||\n|-----------|-------------------------------------|\n| `boolean` | true if counting was started \u003cbr /\u003e |"]]
