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Update instructions for running benchmarks #277

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Nov 10, 2015
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Update instructions for running benchmarks #277

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19 changes: 11 additions & 8 deletions packages/unit/benchmark/README.md
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@@ -1,13 +1,16 @@
Benchmarks
==========
# Benchmarks

This directory (and its sub-directories) contain benchmarks for Flutter.
The reporting format for benchmarks is not standardized yet, so benchmarks
here are typically run by hand. To run a particular benchmark, use a command
similar to that used to run individual unit tests. For example:
here are typically run by hand. To run a benchmark:

1. Build `sky_shell` for Linux Release using the instructions in the
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I'm surprised we haven't renamed it cocoon or something by now. :p

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Yeah, the binaries still need new names.

[Engine repository](https://github.com/flutter/engine).

2. Run `pub get` in the `packages/unit` directory.

3. Run the benchmark:

```
sky/tools/run_tests --debug -r expanded benchmark/gestures/velocity_tracker_bench.dart
/path/to/engine/src/out/Release/sky_shell packages/unit/benchmark/stocks/layout_bench.dart --package-root=packages/unit/package
```

(The `-r expanded` flag prints one line per test, which can be more helpful
than the default format when running individual tests.)