Add optimization status to the App Startup plugin.

* Makes sure when looking at app startups, that the app has been compiled with the right ART compilation filter.

Change-Id: I6d3a15aef6fba2bf1129a408d4253a0a89f1fe1e

ui/src/plugins/dev.perfetto.AndroidStartup/index.ts

@@ -17,8 +17,11 @@ import {Trace} from '../../public/trace';
 import {PerfettoPlugin} from '../../public/plugin';
 import {createQuerySliceTrack} from '../../public/lib/tracks/query_slice_track';
 import {TrackNode} from '../../public/workspace';
+import {optimizationsTrack} from './optimizations';
+
 export default class implements PerfettoPlugin {
   static readonly id = 'dev.perfetto.AndroidStartup';
+
   async onTraceLoad(ctx: Trace): Promise<void> {
     const e = ctx.engine;
     await e.query(`
@@ -55,9 +58,12 @@ export default class implements PerfettoPlugin {
       `/android_startups_breakdown`,
       'Android App Startups Breakdown',
     );
-
+    const optimizations = await optimizationsTrack(ctx);
     ctx.workspace.addChildInOrder(trackNode);
     trackNode.addChildLast(trackBreakdownNode);
+    if (!!optimizations) {
+      trackNode.addChildLast(optimizations);
+    }
   }
 
   private async loadStartupTrack(

ui/src/plugins/dev.perfetto.AndroidStartup/optimizations.ts

@@ -0,0 +1,155 @@
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import {Trace} from '../../public/trace';
+import {STR, LONG, NUM} from '../../trace_processor/query_result';
+import {createQuerySliceTrack} from '../../public/lib/tracks/query_slice_track';
+import {TrackNode} from '../../public/workspace';
+
+// The metadata container that keeps track of optimizations for packages that have startup events.
+interface Startup {
+  // The startup id.
+  id: number;
+  // The package name.
+  package: string;
+  // Time start
+  ts: bigint;
+  // Time end
+  ts_end: bigint;
+  // compilation filter
+  filter?: string;
+  // optimization status
+  optimized?: boolean;
+}
+
+// The log tag
+const tag = 'DexOptInsights';
+// The pattern for the optimization filter.
+const FILTER_PATTERN = /filter=([^\s]+)/;
+
+/**
+ * Returns a track node that contains optimization status
+ * for the packages that started up in a trace.
+ * @param trace The loaded trace.
+ * @returns a track node with the optimizations status.
+ * `undefined` if there are no app startups detected.
+ */
+export async function optimizationsTrack(
+  trace: Trace,
+): Promise<TrackNode | undefined> {
+  const startups: Array<Startup> = [];
+
+  // Find app startups
+  let result = await trace.engine.query(
+    `
+        INCLUDE PERFETTO MODULE android.startup.startups;
+        SELECT startup_id AS id, package, ts, ts_end FROM android_startups;`,
+    tag,
+  );
+
+  const it = result.iter({id: NUM, package: STR, ts: LONG, ts_end: LONG});
+  for (; it.valid(); it.next()) {
+    startups.push({
+      id: it.id,
+      package: it.package,
+      ts: it.ts,
+      ts_end: it.ts_end,
+    });
+  }
+
+  if (startups.length === 0) {
+    // Nothing interesting to report.
+    return undefined;
+  }
+
+  for (const startup of startups) {
+    // For each startup id get the optimization status
+    result = await trace.engine.query(
+      `
+        INCLUDE PERFETTO MODULE android.startup.startups;
+        SELECT slice_name AS name FROM
+          android_slices_for_startup_and_slice_name(${startup.id}, 'location=* status=* filter=* reason=*');`,
+      tag,
+    );
+    const it = result.iter({name: STR});
+    for (; it.valid(); it.next()) {
+      const name = it.name;
+      const relevant = name.indexOf(startup.package) >= 0;
+      if (relevant) {
+        const matches = name.match(FILTER_PATTERN);
+        if (matches) {
+          const filter = matches[1];
+          startup.filter = filter;
+          startup.optimized = filter === 'speed-profile';
+        }
+      }
+    }
+  }
+
+  // Create the optimizations track and also avoid re-querying for the data we already have.
+  const sqlSource = startups
+    .map((startup) => {
+      return `SELECT
+        ${startup.ts} AS ts,
+        ${startup.ts_end - startup.ts} AS dur,
+        '${buildName(startup)}' AS name,
+        '${buildDetails(startup)}' AS details
+      `;
+    })
+    .join('UNION ALL');
+
+  const uri = '/android_startups_optimization_status';
+  const title = 'Optimization Status';
+  const track = await createQuerySliceTrack({
+    trace: trace,
+    uri: uri,
+    data: {
+      sqlSource: sqlSource,
+      columns: ['ts', 'dur', 'name', 'details'],
+    },
+    argColumns: ['details'],
+  });
+  trace.tracks.registerTrack({
+    uri,
+    title,
+    track,
+  });
+  return new TrackNode({title, uri});
+}
+
+function buildName(startup: Startup): string {
+  if (
+    !!startup.filter === false ||
+    startup.filter === 'verify' ||
+    startup.filter === 'speed'
+  ) {
+    return `Sub-optimal compilation state (${startup.filter})`;
+  } else if (startup.filter === 'speed-profile') {
+    return 'Ideal compilation state (speed-profile)';
+  } else {
+    return `Unknown compilation state (${startup.filter})`;
+  }
+}
+
+function buildDetails(startup: Startup): string {
+  if (startup.filter === 'verify' || !!startup.filter === false) {
+    return `No methods are precompiled, and class loading is unoptimized`;
+  } else if (startup.filter === 'speed') {
+    return 'Methods are all precompiled, and class loading is unoptimized';
+  } else if (startup.filter === 'speed-profile') {
+    return 'Methods and classes in the profile are optimized';
+  } else {
+    return `Unknown compilation state (${startup.filter})`;
+  }
+}