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Unified Diff: tests/benchmark_smoke/benchmark_base.dart

Issue 2976313002: Delete old tests that aren't used and/or useful any more. (Closed)
Patch Set: Resurrect dummy_compiler_test and recursive_import_test. Created 3 years, 5 months ago
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Index: tests/benchmark_smoke/benchmark_base.dart
diff --git a/tests/benchmark_smoke/benchmark_base.dart b/tests/benchmark_smoke/benchmark_base.dart
deleted file mode 100644
index f999cd83a99460ae3d84c4e55f27aee1c82af6cd..0000000000000000000000000000000000000000
--- a/tests/benchmark_smoke/benchmark_base.dart
+++ /dev/null
@@ -1,203 +0,0 @@
-// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of benchmark_lib;
-
-/** Accessors for our Singleton variables. */
-BenchmarkSuite get BENCHMARK_SUITE {
- if (BenchmarkSuite._ONLY == null) {
- BenchmarkSuite._ONLY = new BenchmarkSuite._internal();
- }
- return BenchmarkSuite._ONLY;
-}
-
-BenchmarkView get BENCHMARK_VIEW {
- if (BenchmarkView._ONLY == null) {
- BenchmarkView._ONLY = new BenchmarkView._internal();
- }
- return BenchmarkView._ONLY;
-}
-
-/** The superclass from which all benchmarks inherit from. */
-class BenchmarkBase {
- /** Benchmark name. */
- final String name;
-
- const BenchmarkBase(String name) : this.name = name;
-
- /**
- * The benchmark code.
- * This function is not used, if both [warmup] and [exercise] are overwritten.
- */
- void run() {}
-
- /** Runs a short version of the benchmark. By default invokes [run] once. */
- void warmup() {
- run();
- }
-
- /** Exercises the benchmark. By default invokes [run] 10 times. */
- void exercise() {
- for (int i = 0; i < 10; i++) {
- run();
- }
- }
-
- /** Not measured setup code executed prior to the benchmark runs. */
- void setup() {}
-
- /** Not measures teardown code executed after the benchmark runs. */
- void teardown() {}
-
- /**
- * Measures the score for this benchmark by executing it repeately until
- * time minimum has been reached.
- */
- static double measureFor(Function f, int timeMinimum) {
- int time = 0;
- int iter = 0;
- Stopwatch watch = new Stopwatch();
- watch.start();
- int elapsed = 0;
- while (elapsed < timeMinimum || iter < 32) {
- f();
- elapsed = watch.elapsedMilliseconds;
- iter++;
- }
- return (1000.0 * iter) / elapsed;
- }
-
- /**
- * Measures the score for the benchmark and returns it.
- * We measure iterations / sec (so bigger = better!).
- */
- double measure() {
- setup();
- // Warmup for at least 1000ms. Discard result.
- measureFor(() {
- this.warmup();
- }, 1000);
- // Run the benchmark for at least 1000ms.
- double result = measureFor(() {
- this.exercise();
- }, 1000);
- teardown();
- return result;
- }
-
- void report() {
- num score = measure();
- Map<String, int> normalizingDict = {'Smoketest': 100};
- score = score / normalizingDict[name];
- BENCHMARK_SUITE.updateIndividualScore(name, score);
- }
-}
-
-/** The controller class that runs all of the benchmarks. */
-class BenchmarkSuite {
- /** The set of benchmarks that have yet to run. */
- List<Function> benchmarks;
-
- /**
- * The set of scores from the benchmarks that have already run. (Used for
- * calculating the Geometric mean).
- */
- List<num> scores;
-
- /** The total number of benchmarks we will be running. */
- int totalBenchmarks;
-
- /** Singleton pattern: There's only one BenchmarkSuite. */
- static BenchmarkSuite _ONLY = null;
-
- BenchmarkSuite._internal() {
- scores = [];
- benchmarks = [() => Smoketest.main()];
- totalBenchmarks = benchmarks.length;
- }
-
- /** Run all of the benchmarks that we have in our benchmarks list. */
- runBenchmarks() {
- runBenchmarksHelper(benchmarks);
- }
-
- /**
- * Run the remaining benchmarks in our list. We chain the calls providing
- * little breaks for the main page to gain control, so we don't force the
- * entire page to hang the whole time.
- */
- runBenchmarksHelper(List<Function> remainingBenchmarks) {
- // Remove the last benchmark, and run it.
- var benchmark = remainingBenchmarks.removeLast();
- benchmark();
- if (remainingBenchmarks.length > 0) {
- /* Provide small breaks between each benchmark, so that the browser
- doesn't get unhappy about long running scripts, and so the user
- can regain control of the UI to kill the page as needed. */
- new Timer(const Duration(milliseconds: 25),
- () => runBenchmarksHelper(remainingBenchmarks));
- } else if (remainingBenchmarks.length == 0) {
- // We've run all of the benchmarks. Update the page with the score.
- BENCHMARK_VIEW.setScore(geometricMean(scores));
- }
- }
-
- /** Store the results of a single benchmark run. */
- updateIndividualScore(String name, num score) {
- scores.add(score);
- BENCHMARK_VIEW.incrementProgress(name, score, totalBenchmarks);
- }
-
- /** Computes the geometric mean of a set of numbers. */
- geometricMean(numbers) {
- num log = 0;
- for (num n in numbers) {
- log += Math.log(n);
- }
- return Math.pow(Math.E, log / numbers.length);
- }
-}
-
-/** Controls how results are displayed to the user, by updating the HTML. */
-class BenchmarkView {
- /** The number of benchmarks that have finished executing. */
- int numCompleted = 0;
-
- /** Singleton pattern: There's only one BenchmarkSuite. */
- static BenchmarkView _ONLY = null;
-
- BenchmarkView._internal();
-
- /** Update the page HTML to show the calculated score. */
- setScore(num score) {
- String newScore = formatScore(score * 100.0);
- Element body = document.queryAll("body")[0];
- body.nodes
- .add(new Element.html("<p id='testResultScore'>Score: $newScore</p>"));
- }
-
- /**
- * Update the page HTML to show how much progress we've made through the
- * benchmarks.
- */
- incrementProgress(String name, num score, num totalBenchmarks) {
- String newScore = formatScore(score * 100.0);
- numCompleted++;
- // Slightly incorrect (truncating) percentage, but this is just to show
- // the user we're making progress.
- num percentage = 100 * numCompleted ~/ totalBenchmarks;
- }
-
- /**
- * Rounds the score to have at least three significant digits (hopefully)
- * helping readability of the scores.
- */
- String formatScore(num value) {
- if (value > 100) {
- return value.toStringAsFixed(0);
- } else {
- return value.toStringAsFixed(2);
- }
- }
-}

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