7aace1c5f9
**Three things** Re-lands #154374 New: fix `platform_channels_benchmarks` to print the "done" key. Updated notes for the microbenchmark parser. There are no other users of `microbenchmarks.readJsonResults`. Re-Re-land: Uninstall microbenchmarks before running them. Flakes in https://github.com/flutter/flutter/issues/153828 stem from adb saying the app isn't installed, but then failing to install wtih -r. Several other tests uninstall the app before trying to run it. Previous fix called uninstall between tests, but iOS takes 12 to 13 seconds to perform uninstall / install, which timed out the test. Just uninstall the one time since we only care about any lingering apps with different keys. Potential solution https://github.com/flutter/flutter/issues/153828 Re-land Make things go fast Instead of installing 21 different compilations of the same app to get results; compile and run them together. Locally on Mac+iOS, this should takes ~3 minutes instead of ~15 minutes.
18 lines
613 B
Markdown
18 lines
613 B
Markdown
# microbenchmarks
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To run these benchmarks on a device, first run `flutter logs` in one
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window to see the device logs, then, in a different window, run:
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```sh
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flutter run -d $DEVICE_ID --profile lib/benchmark_collection.dart
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```
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The results should be in the device logs.
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## Avoid changing names of the benchmarks
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Each microbenchmark is identified by a name, for example,
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"catmullrom_transform_iteration". Changing the name passed to `BenchmarkResultPrinter.addResult`
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will effectively remove the old benchmark and create a new one,
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losing the historical data associated with the old benchmark in the process.
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