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449f4a6673
* Update project.pbxproj files to say Flutter rather than Chromium Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright. * Update the copyright notice checker to require a standard notice on all files * Update copyrights on Dart files. (This was a mechanical commit.) * Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine. Some were already marked "The Flutter Authors", not clear why. Their dates have been normalized. Some were missing the blank line after the license. Some were randomly different in trivial ways for no apparent reason (e.g. missing the trailing period). * Clean up the copyrights in non-Dart files. (Manual edits.) Also, make sure templates don't have copyrights. * Fix some more ORGANIZATIONNAMEs
84 lines
2.7 KiB
Dart
84 lines
2.7 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:convert' show json;
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import 'package:meta/meta.dart';
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/// This class knows how to format benchmark results for machine and human
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/// consumption.
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///
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/// Example:
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///
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/// BenchmarkResultPrinter printer = new BenchmarkResultPrinter();
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/// printer.add(
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/// description: 'Average frame time',
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/// value: averageFrameTime,
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/// unit: 'ms',
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/// name: 'average_frame_time',
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/// );
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/// printer.printToStdout();
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///
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class BenchmarkResultPrinter {
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final List<_BenchmarkResult> _results = <_BenchmarkResult>[];
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/// Adds a benchmark result to the list of results.
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///
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/// [description] is a human-readable description of the result. [value] is a
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/// result value. [unit] is the unit of measurement, such as "ms", "km", "h".
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/// [name] is a computer-readable name of the result used as a key in the JSON
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/// serialization of the results.
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void addResult({ @required String description, @required double value, @required String unit, @required String name }) {
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_results.add(_BenchmarkResult(description, value, unit, name));
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}
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/// Prints the results added via [addResult] to standard output, once as JSON
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/// for computer consumption and once formatted as plain text for humans.
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void printToStdout() {
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// IMPORTANT: keep these values in sync with dev/devicelab/bin/tasks/microbenchmarks.dart
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const String jsonStart = '================ RESULTS ================';
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const String jsonEnd = '================ FORMATTED ==============';
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const String jsonPrefix = ':::JSON:::';
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print(jsonStart);
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print('$jsonPrefix ${_printJson()}');
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print(jsonEnd);
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print(_printPlainText());
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}
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String _printJson() {
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final Map<String, double> results = <String, double>{};
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for (_BenchmarkResult result in _results) {
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results[result.name] = result.value;
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}
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return json.encode(results);
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}
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String _printPlainText() {
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final StringBuffer buf = StringBuffer();
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for (_BenchmarkResult result in _results) {
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buf.writeln('${result.description}: ${result.value.toStringAsFixed(1)} ${result.unit}');
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}
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return buf.toString();
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}
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}
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class _BenchmarkResult {
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_BenchmarkResult(this.description, this.value, this.unit, this.name);
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/// Human-readable description of the result, e.g. "Average frame time".
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final String description;
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/// Result value that in agreement with [unit].
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final double value;
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/// Unit of measurement that is in agreement with [value].
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final String unit;
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/// Computer-readable name of the result.
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final String name;
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}
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