Deprecate MessageQueueThreadPerfStats (#52470)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/52470

These metrics are not actively consumed and are highly noisy.

Changelog: [Android][Removed] Deprecated MessageQueueThreadPerfStats API and replaced with stub.

Reviewed By: cortinico

Differential Revision: D77867087

fbshipit-source-id: 8bf7423ad60cb3bb21a5dbe94771d5a71832633d

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -1561,28 +1561,26 @@ public abstract interface class com/facebook/react/bridge/queue/MessageQueueThre
 	public abstract fun assertIsOnThread ()V
 	public abstract fun assertIsOnThread (Ljava/lang/String;)V
 	public abstract fun callOnQueue (Ljava/util/concurrent/Callable;)Ljava/util/concurrent/Future;
-	public abstract fun getPerfStats ()Lcom/facebook/react/bridge/queue/MessageQueueThreadPerfStats;
+	public fun getPerfStats ()Lcom/facebook/react/bridge/queue/MessageQueueThreadPerfStats;
 	public abstract fun isIdle ()Z
 	public abstract fun isOnThread ()Z
 	public abstract fun quitSynchronous ()V
-	public abstract fun resetPerfStats ()V
+	public fun resetPerfStats ()V
 	public abstract fun runOnQueue (Ljava/lang/Runnable;)Z
 }
 
 public final class com/facebook/react/bridge/queue/MessageQueueThreadImpl : com/facebook/react/bridge/queue/MessageQueueThread {
 	public static final field Companion Lcom/facebook/react/bridge/queue/MessageQueueThreadImpl$Companion;
-	public synthetic fun <init> (Ljava/lang/String;Landroid/os/Looper;Lcom/facebook/react/bridge/queue/QueueThreadExceptionHandler;Lcom/facebook/react/bridge/queue/MessageQueueThreadPerfStats;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public synthetic fun <init> (Ljava/lang/String;Landroid/os/Looper;Lcom/facebook/react/bridge/queue/QueueThreadExceptionHandler;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun assertIsOnThread ()V
 	public fun assertIsOnThread (Ljava/lang/String;)V
 	public fun callOnQueue (Ljava/util/concurrent/Callable;)Ljava/util/concurrent/Future;
 	public static final fun create (Lcom/facebook/react/bridge/queue/MessageQueueThreadSpec;Lcom/facebook/react/bridge/queue/QueueThreadExceptionHandler;)Lcom/facebook/react/bridge/queue/MessageQueueThreadImpl;
 	public final fun getLooper ()Landroid/os/Looper;
 	public final fun getName ()Ljava/lang/String;
-	public fun getPerfStats ()Lcom/facebook/react/bridge/queue/MessageQueueThreadPerfStats;
 	public fun isIdle ()Z
 	public fun isOnThread ()Z
 	public fun quitSynchronous ()V
-	public fun resetPerfStats ()V
 	public fun runOnQueue (Ljava/lang/Runnable;)Z
 }
 

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/ReactContext.java

@@ -108,14 +108,8 @@ public abstract class ReactContext extends ContextWrapper {
     mInteropModuleRegistry = new InteropModuleRegistry();
   }
 
-  public void resetPerfStats() {
-    if (mNativeModulesMessageQueueThread != null) {
-      mNativeModulesMessageQueueThread.resetPerfStats();
-    }
-    if (mJSMessageQueueThread != null) {
-      mJSMessageQueueThread.resetPerfStats();
-    }
-  }
+  @Deprecated(since = "MessageQueueThread perf stats are no longer collected")
+  public void resetPerfStats() {}
 
   public void setJSExceptionHandler(@Nullable JSExceptionHandler jSExceptionHandler) {
     mJSExceptionHandler = jSExceptionHandler;

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThread.kt

@@ -55,13 +55,16 @@ public interface MessageQueueThread {
    * Returns the perf counters taken when the framework was started. This method is intended to be
    * used for instrumentation purposes.
    */
-  public fun getPerfStats(): MessageQueueThreadPerfStats?
+  @Deprecated("MessageQueueThread perf stats are no longer collected")
+  @Suppress("DEPRECATION")
+  public fun getPerfStats(): MessageQueueThreadPerfStats? = null
 
   /**
    * Resets the perf counters. This is useful if the RN threads are being re-used. This method is
    * intended to be used for instrumentation purposes.
    */
-  public fun resetPerfStats()
+  @Deprecated("MessageQueueThread perf stats are no longer collected")
+  public fun resetPerfStats(): Unit = Unit
 
   /**
    * Resets the perf counters. This is useful if the RN threads are being re-used. This method is

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThreadImpl.kt

@@ -9,8 +9,6 @@ package com.facebook.react.bridge.queue
 
 import android.os.Looper
 import android.os.Process
-import android.os.SystemClock
-import android.util.Pair
 import com.facebook.common.logging.FLog
 import com.facebook.proguard.annotations.DoNotStripAny
 import com.facebook.react.bridge.AssertionException
@@ -29,7 +27,6 @@ private constructor(
     public val name: String,
     public val looper: Looper,
     exceptionHandler: QueueThreadExceptionHandler,
-    private val stats: MessageQueueThreadPerfStats? = null
 ) : MessageQueueThread {
   private val handler = MessageQueueThreadHandler(looper, exceptionHandler)
   private val assertionErrorMessage = "Expected to be called from the '$name' thread!"
@@ -105,27 +102,9 @@ private constructor(
     }
   }
 
-  override fun getPerfStats(): MessageQueueThreadPerfStats? = stats
-
-  override fun resetPerfStats() {
-    assignToPerfStats(stats, -1, -1)
-    runOnQueue {
-      val wallTime = SystemClock.uptimeMillis()
-      val cpuTime = SystemClock.currentThreadTimeMillis()
-      assignToPerfStats(stats, wallTime, cpuTime)
-    }
-  }
-
   public override fun isIdle(): Boolean = looper.queue.isIdle
 
   public companion object {
-    private fun assignToPerfStats(stats: MessageQueueThreadPerfStats?, wall: Long, cpu: Long) {
-      stats?.let { s ->
-        s.wallTime = wall
-        s.cpuTime = cpu
-      }
-    }
-
     @JvmStatic
     @Throws(RuntimeException::class)
     public fun create(
@@ -160,27 +139,23 @@ private constructor(
         stackSize: Long,
         exceptionHandler: QueueThreadExceptionHandler
     ): MessageQueueThreadImpl {
-      val dataFuture = SimpleSettableFuture<Pair<Looper?, MessageQueueThreadPerfStats>>()
+      val looperFuture = SimpleSettableFuture<Looper?>()
       val bgThread =
           Thread(
               null,
               {
                 Process.setThreadPriority(Process.THREAD_PRIORITY_DISPLAY)
                 Looper.prepare()
-                val stats = MessageQueueThreadPerfStats()
-                val wallTime = SystemClock.uptimeMillis()
-                val cpuTime = SystemClock.currentThreadTimeMillis()
-                assignToPerfStats(stats, wallTime, cpuTime)
-                dataFuture.set(Pair(Looper.myLooper(), stats))
+                looperFuture.set(Looper.myLooper())
                 Looper.loop()
               },
               "mqt_$name",
               stackSize)
       bgThread.start()
 
-      val pair = dataFuture.getOrThrow()
-      val looper = pair?.first ?: throw RuntimeException("Looper not found for thread")
-      return MessageQueueThreadImpl(name, looper, exceptionHandler, pair.second)
+      val looper =
+          looperFuture.getOrThrow() ?: throw RuntimeException("Looper not found for thread")
+      return MessageQueueThreadImpl(name, looper, exceptionHandler)
     }
   }
 }

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThreadPerfStats.kt

@@ -8,6 +8,7 @@
 package com.facebook.react.bridge.queue
 
 /** This class holds perf counters' values at the beginning of an RN startup. */
+@Deprecated("MessageQueueThread perf stats are no longer collected")
 public class MessageQueueThreadPerfStats {
   @JvmField public var wallTime: Long = 0
   @JvmField public var cpuTime: Long = 0

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThreadSpec.kt

@@ -26,6 +26,7 @@ private constructor(
     public const val DEFAULT_STACK_SIZE_BYTES: Long = 0
 
     @JvmStatic
+    @Deprecated("Use newBackgroundThreadSpec")
     public fun newUIBackgroundTreadSpec(name: String): MessageQueueThreadSpec =
         MessageQueueThreadSpec(ThreadType.NEW_BACKGROUND, name)