Revert "Reland GC benchmark changes again (#82042)" (#82059)

This reverts commit 99a947c3.

dev/benchmarks/macrobenchmarks/test_driver/animated_image_test.dart

@@ -6,7 +6,7 @@ import 'package:flutter_driver/flutter_driver.dart';
 import 'package:test/test.dart' hide TypeMatcher, isInstanceOf;
 
 Future<void> main() async {
-  const String fileName = 'animated_image';
+  const String fileName = 'large_image_changer';
 
   test('Animate for 250 frames', () async {
     final FlutterDriver driver = await FlutterDriver.connect();

dev/devicelab/bin/tasks/animated_image_gc_perf.dart

@@ -9,11 +9,8 @@ import 'package:flutter_devicelab/tasks/perf_tests.dart';
 
 Future<void> main() async {
   deviceOperatingSystem = DeviceOperatingSystem.android;
-  await task(PerfTest(
+  await task(DevToolsMemoryTest(
     '${flutterDirectory.path}/dev/benchmarks/macrobenchmarks',
     'test_driver/animated_image.dart',
-    'animated_image',
-    measureCpuGpu: true,
-    measureMemory: true,
   ).run);
 }

dev/devicelab/lib/tasks/perf_tests.dart

@@ -705,7 +705,6 @@ class PerfTest {
       final String deviceId = device.deviceId;
 
       await flutter('drive', options: <String>[
-        '--no-dds', // TODO(dnfield): consider removing when https://github.com/flutter/flutter/issues/81707 is fixed
         '--no-android-gradle-daemon',
         '-v',
         '--verbose-system-logs',
@@ -778,8 +777,6 @@ const List<String> _kCommonScoreKeys = <String>[
   'worst_frame_rasterizer_time_millis',
   '90th_percentile_frame_rasterizer_time_millis',
   '99th_percentile_frame_rasterizer_time_millis',
-  'new_gen_gc_count',
-  'old_gen_gc_count',
 ];
 
 class PerfTestWithSkSL extends PerfTest {
@@ -871,7 +868,6 @@ class PerfTestWithSkSL extends PerfTest {
       _flutterPath,
       <String>[
         'run',
-        '--no-dds',
         if (deviceOperatingSystem == DeviceOperatingSystem.ios)
           ...<String>[
             '--device-timeout', '5',

packages/flutter_test/lib/src/frame_timing_summarizer.dart

@@ -17,11 +17,7 @@ class FrameTimingSummarizer {
   /// Summarize `data` to frame build time and frame rasterizer time statistics.
   ///
   /// See [TimelineSummary.summaryJson] for detail.
-  factory FrameTimingSummarizer(
-    List<FrameTiming> data, {
-    int? newGenGCCount,
-    int? oldGenGCCount,
-  }) {
+  factory FrameTimingSummarizer(List<FrameTiming> data) {
     assert(data != null);
     assert(data.isNotEmpty);
     final List<Duration> frameBuildTime = List<Duration>.unmodifiable(
@@ -62,8 +58,6 @@ class FrameTimingSummarizer {
       p90VsyncOverhead: _findPercentile(vsyncOverheadSorted, 0.90),
       p99VsyncOverhead: _findPercentile(vsyncOverheadSorted, 0.99),
       worstVsyncOverhead: vsyncOverheadSorted.last,
-      newGenGCCount: newGenGCCount ?? -1,
-      oldGenGCCount: oldGenGCCount ?? -1,
     );
   }
 
@@ -85,8 +79,6 @@ class FrameTimingSummarizer {
     required this.p90VsyncOverhead,
     required this.p99VsyncOverhead,
     required this.worstVsyncOverhead,
-    required this.newGenGCCount,
-    required this.oldGenGCCount,
   });
 
   /// List of frame build time in microseconds
@@ -141,12 +133,6 @@ class FrameTimingSummarizer {
   /// The largest value of [vsyncOverhead] in milliseconds.
   final Duration worstVsyncOverhead;
 
-  /// The number of new generation GCs.
-  final int newGenGCCount;
-
-  /// The number of old generation GCs.
-  final int oldGenGCCount;
-
   /// Convert the summary result to a json object.
   ///
   /// See [TimelineSummary.summaryJson] for detail.
@@ -176,8 +162,6 @@ class FrameTimingSummarizer {
         'frame_rasterizer_times': frameRasterizerTime
             .map<int>((Duration datum) => datum.inMicroseconds)
             .toList(),
-        'new_gen_gc_count': newGenGCCount,
-        'old_gen_gc_count': oldGenGCCount,
       };
 }
 

packages/integration_test/lib/integration_test.dart

@@ -228,7 +228,8 @@ https://flutter.dev/docs/testing/integration-tests#testing-on-firebase-test-lab
       _vmService = vmService;
     }
     if (_vmService == null) {
-      final developer.ServiceProtocolInfo info = await developer.Service.getInfo();
+      final developer.ServiceProtocolInfo info =
+          await developer.Service.getInfo();
       assert(info.serverUri != null);
       _vmService = await vm_io.vmServiceConnectUri(
         'ws://localhost:${info.serverUri!.port}${info.serverUri!.path}ws',
@@ -301,29 +302,6 @@ https://flutter.dev/docs/testing/integration-tests#testing-on-firebase-test-lab
     reportData![reportKey] = timeline.toJson();
   }
 
-  Future<_GarbageCollectionInfo> _runAndGetGCInfo(Future<void> Function() action) async {
-    if (kIsWeb) {
-      await action();
-      return const _GarbageCollectionInfo();
-    }
-
-    final vm.Timeline timeline = await traceTimeline(
-      action,
-      streams: <String>['GC'],
-    );
-
-    final int oldGenGCCount = timeline.traceEvents!.where((vm.TimelineEvent event) {
-      return event.json!['cat'] == 'GC' && event.json!['name'] == 'CollectOldGeneration';
-    }).length;
-    final int newGenGCCount = timeline.traceEvents!.where((vm.TimelineEvent event) {
-      return event.json!['cat'] == 'GC' && event.json!['name'] == 'CollectNewGeneration';
-    }).length;
-    return _GarbageCollectionInfo(
-      oldCount: oldGenGCCount,
-      newCount: newGenGCCount,
-    );
-  }
-
   /// Watches the [FrameTiming] during `action` and report it to the binding
   /// with key `reportKey`.
   ///
@@ -362,16 +340,11 @@ https://flutter.dev/docs/testing/integration-tests#testing-on-firebase-test-lab
     await Future<void>.delayed(const Duration(seconds: 2)); // flush old FrameTimings
     final TimingsCallback watcher = frameTimings.addAll;
     addTimingsCallback(watcher);
-    final _GarbageCollectionInfo gcInfo = await _runAndGetGCInfo(action);
-
+    await action();
     await delayForFrameTimings(); // make sure all FrameTimings are reported
     removeTimingsCallback(watcher);
-
-    final FrameTimingSummarizer frameTimes = FrameTimingSummarizer(
-      frameTimings,
-      newGenGCCount: gcInfo.newCount,
-      oldGenGCCount: gcInfo.oldCount,
-    );
+    final FrameTimingSummarizer frameTimes =
+        FrameTimingSummarizer(frameTimings);
     reportData ??= <String, dynamic>{};
     reportData![reportKey] = frameTimes.summary;
   }
@@ -393,11 +366,3 @@ https://flutter.dev/docs/testing/integration-tests#testing-on-firebase-test-lab
     super.attachRootWidget(RepaintBoundary(child: rootWidget));
   }
 }
-
-@immutable
-class _GarbageCollectionInfo {
-  const _GarbageCollectionInfo({this.oldCount = -1, this.newCount = -1});
-
-  final int oldCount;
-  final int newCount;
-}