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38 lines
1.4 KiB
38 lines
1.4 KiB
7 months ago
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This directory contains a simple Android app that is meant to help in doing
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controlled startup performance experiments.
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This app is structured as a number of activities that each are useful for a
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different aspect of startup testing.
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# Activities
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## EmptyActivity
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This is the simplest possible Android activity. Starting this exercises only the
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system parts of startup without any app-specific behavior.
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adb shell am start -n com.android.startop.test/.EmptyActivity
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## LayoutInflation
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This activity inflates a reasonably complex layout to see the impact of layout
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inflation. The layout is supported by the viewcompiler, so this can be used for
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testing precompiled layout performance.
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The activity adds an `inflate#activity_main` slice to atrace around the time
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spent in view inflation to make it easier to focus on the time spent in view
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inflation.
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adb shell am start -n com.android.startop.test/.ComplexLayoutInflationActivity
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## NonInteractiveSystemServerBenchmark
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This activity is for running microbenchmarks from the command line. Run as follows:
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adb shell am start -W -n com.android.startop.test .NonInteractiveSystemServerBenchmarkActivity
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It takes awhile (and there's currently no automated way to make sure it's done),
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but when it finishes, you can get the results like this:
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adb shell cat /sdcard/Android/data/com.android.startop.test/files/benchmark.csv
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