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Stop macrobenchmark from installing at all, and measure the app that is there

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The MIUI dialog was never the problem to solve; the install was. CompilationMode.None() reports shouldReset = true, which is what makes resetAndCompile uninstall the app and run pm install -t --skip-verification before every test - the one command MIUI intercepts with a FLAG_SECURE dialog that nothing inside a blocking install call can answer. CompilationMode.Ignore() reports shouldReset = false: the library installs nothing and measures what is installed. So the APK is installed once from the host and the run contains no install at all.

Measured on the phone: with Ignore() the four tests ran with zero installs - the watcher script logged heartbeats and no dialogs - and three passed. The numbers are the best yet and taken on a run with no install churn: coldStart 519.5 ms median (503.6-544.7), opening a 1000-file folder 14 frames median (11-17), scrolling it with four swipes 94 frames median (48-96). The search benchmark still fails on the app bar's search action not being in the accessibility tree.

Also recorded: the storage grant now survives because nothing uninstalls, MIUI refuses to let its SecurityCenter be disabled (Cannot disable miui core packages), and the fix for the whole afternoon is five lines in the benchmark's KDoc plus a documented am instrument command, because Gradle's own install steps are gated too.
This commit is contained in:
Hadrian Burkhardt
2026-10-17 15:41:55 +02:00
parent b72847b822
commit 7514676384
3 changed files with 88 additions and 56 deletions
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docs/CODE_MAP.md
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@@ -2,7 +2,7 @@
Generated from the source by `tools/make-code-map.py` - do not edit by hand. Regenerate it after a change (`python3 tools/make-code-map.py`); `--check` exits non-zero when this file is stale.
77 source files, 12707 lines - 33 test files, 386 tests. The behaviour index at the end lists every test name, and in this project a test name is a sentence about what the app does, so it doubles as the specification.
77 source files, 12723 lines - 33 test files, 386 tests. The behaviour index at the end lists every test name, and in this project a test name is a sentence about what the app does, so it doubles as the specification.
Start at `AGENTS.md`. What is done, and why: `docs/ROADMAP.md` and `CHANGELOG.md`. What was verified by hand rather than by a test: `docs/EDGE_CASE_TESTING.md`.
@@ -170,7 +170,7 @@ The macrobenchmark test APK: four measurements over a fixture folder, run on a d
| file | lines | what it holds | tests |
|---|---|---|---|
| `BrowserBenchmark.kt` | 215 | The four numbers docs/PERFORMANCE.md promises, measured on a benchmark build of the app. BrowserBenchmark, Fixture | - |
| `BrowserBenchmark.kt` | 231 | The four numbers docs/PERFORMANCE.md promises, measured on a benchmark build of the app. BrowserBenchmark, Fixture | - |
## Behaviour index