IssueTracker

Hello, I've followed

the tutorials outlined here:

• https://developer.android.com/studio/profile/baselineprofiles#measuring-optimization
• https://developer.android.com/studio/profile/macrobenchmark

to generate and then use profiles for my app startup scenario.

Generation of the profiles went as planned - with baseline-prof generated on the emulator. When I copied the file to my app though, and tried to build it and run the tests that would measure the efficiency of those profiles, gradle complained about several syntax errors in the generated profiles (idk if they really are syntax errors).

The errors looked like this:

//    > A failure occurred while executing com.android.build.gradle.internal.tasks.CompileArtProfileTask$CompileArtProfileWorkAction
//    > Error parsing baseline-prof.txt : baseline-prof.txt:4833:97 error: Unexpected text:"+]Lcom/google/android/gms/measurement/internal/zzee;megamorphic_types" after the rule.
//    HSPLcom/google/android/gms/measurement/internal/zzeg;->zza(Ljava/lang/Object;)Ljava/lang/Object;+]Lcom/google/android/gms/measurement/internal/zzee;megamorphic_types

iirc, errors were also detected along the lines that started with '[', like this one: [Landroidx/appcompat/app/AppCompatDelegateImpl$PanelFeatureState;

I eventually went ahead and removed all patterns that resembled the failing ones (maybe removing too much), and the diff results were (unmodified profile diffed against one I edited manually:

576c576
< HSPLandroidx/constraintlayout/solver/ArrayLinkedVariables;->put(Landroidx/constraintlayout/solver/SolverVariable;F)V+]Landroidx/constraintlayout/solver/SolverVariable;Landroidx/constraintlayout/solver/SolverVariable;
---
> HSPLandroidx/constraintlayout/solver/ArrayLinkedVariables;->put(Landroidx/constraintlayout/solver/SolverVariable;F)V+]Landroidx/constraintlayout/solver/SolverVariable;
4833c4833
< HSPLcom/google/android/gms/measurement/internal/zzeg;->zza(Ljava/lang/Object;)Ljava/lang/Object;+]Lcom/google/android/gms/measurement/internal/zzee;megamorphic_types
---
> HSPLcom/google/android/gms/measurement/internal/zzeg;->zza(Ljava/lang/Object;)Ljava/lang/Object;
7322c7322
< HSPLcom/google/gson/internal/bind/TypeAdapters$7;->read(Lcom/google/gson/stream/JsonReader;)Ljava/lang/Number;+]Lcom/google/gson/stream/JsonReader;Lcom/google/gson/stream/JsonReader;
---
> HSPLcom/google/gson/internal/bind/TypeAdapters$7;->read(Lcom/google/gson/stream/JsonReader;)Ljava/lang/Number;
15176c15176
< HSPLtv/twitch/android/shared/experiments/MiniExperimentFetcher;->parseMiniExperimentModel(Ljava/lang/String;Lorg/json/JSONObject;)Ltv/twitch/android/provider/experiments/MiniExperimentModel;+]Lcom/google/gson/Gson;Lcom/google/gson/Gson;
---
> HSPLtv/twitch/android/shared/experiments/MiniExperimentFetcher;->parseMiniExperimentModel(Ljava/lang/String;Lorg/json/JSONObject;)Ltv/twitch/android/provider/experiments/MiniExperimentModel;
21921,22086c21921,22086
< [Landroidx/appcompat/app/AppCompatDelegateImpl$PanelFeatureState;
< [Landroidx/constraintlayout/solver/ArrayRow;
< [Landroidx/constraintlayout/solver/SolverVariable$Type;
< [Landroidx/constraintlayout/solver/SolverVariable;
(lot of lines starting with `[` - I just removed the initial `[`)

We'd really love to use the new baseline profiling feature - let me know if there's more I can share to confirm where the issue might be.

Component used/Version used: in the tests that generated the profile:

• androidx.benchmark:benchmark-macro-junit4:1.1.0-beta01 in the app
• androidx.profileinstaller:profileinstaller:1.2.0-alpha01"

Devices/Android versions reproduced on:

• Gradle build using Gradle 7.3, AGP 7.1

If this is a bug in the library, we would appreciate if you could attach:

• Sample project to trigger the issue.
• A screenrecord or screenshots showing the issue (if UI related).