Baseline profile plugin should present stats about staleness after generation [269484510]

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Feature Request

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cc...@google.com

created issue #1

Feb 15, 2023 07:12PM

Since staleness will be a bigger problem with dex layout optimizations, we should have the baseline profile generation tasks report how stale your periodic / manual generation of profiles into the source directory is.

This will also help people determine how frequently to run the task.

E.g.:

> ./gradlew generateProfilesCommandToSrcDir
Updated baseline profiles in app/src/main
General
  1083 New rules            (2.5%)
  829  Removed rules        (1.9%)
Startup
  103 New startup rules     (6.5%)
  29  Removed startup rules (1.2%)

Consider https://github.com/JakeWharton/diffuse for inspiration here.

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ap...@google.com <ap...@google.com> #2Apr 23, 2024 09:35PM

Project: platform/frameworks/support
Branch: androidx-main

commit 2af1bd462f390b84ad41b4e6d3fee499fa0e35d8
Author: Marcello Albano <maralb@google.com>
Date: Tue Apr 23 13:28:44 2024

Added comparison with previous baseline profile

A comparison with previous profile is now printed
in the console after a successful baseline or
startup profile generation.

Bug: 269484510
Test: ./gradlew :benchmark:benchmark-baseline-profile-gradle-plugin:test
Relnote: Added comparison with previous baseline profile
Change-Id: I824c84553c4c1c0dd5b585f0846093762b938460

M benchmark/baseline-profile-gradle-plugin/src/main/kotlin/androidx/baselineprofile/gradle/consumer/task/MergeBaselineProfileTask.kt
M benchmark/baseline-profile-gradle-plugin/src/test/kotlin/androidx/baselineprofile/gradle/consumer/BaselineProfileConsumerPluginTest.kt

https://android-review.googlesource.com/3056343

ma...@google.com <ma...@google.com> Apr 23, 2024 10:09PM

Marked as fixed.

Issue 269484510

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ap...@google.com <ap...@google.com> #2Apr 23, 2024 09:35PM

ma...@google.com <ma...@google.com> Apr 23, 2024 10:09PM

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