| // Copyright (c) 2015, 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. |
| |
| import '../benchmark.dart'; |
| import '../generated/benchmark.pb.dart' |
| show BenchmarkID, Params, Request, Sample; |
| import '../generated/string_grid.pb.dart' as pb; |
| |
| /// A benchmark that accesses each value in a grid of string fields. |
| class GetStringsBenchmark extends Benchmark { |
| static const width = 10; |
| final int height; |
| final String? fillValue; // null means start uninitialized. |
| late pb.Grid10 grid; |
| |
| GetStringsBenchmark(this.height, this.fillValue) : super($id); |
| |
| @override |
| String get summary { |
| final fill = fillValue == null ? 'null' : "'$fillValue'"; |
| return '${id.name}($height x $fill)'; |
| } |
| |
| @override |
| Params makeParams() { |
| final p = Params()..messageCount = height; |
| if (fillValue != null) p.stringValue = fillValue!; |
| return p; |
| } |
| |
| @override |
| void setup() { |
| grid = _makeGrid(height, fillValue); |
| } |
| |
| // makes a rectangle where every cell has the same value. |
| static pb.Grid10 _makeGrid(int height, String? fillValue) { |
| final grid = pb.Grid10(); |
| |
| for (var y = 0; y < height; y++) { |
| final line = pb.Line10(); |
| if (fillValue != null) { |
| for (var x = 0; x < width; x++) { |
| final tag = getTagForColumn(line, x); |
| line.setField(tag, fillValue); |
| } |
| } |
| grid.lines.add(line); |
| } |
| |
| return grid; |
| } |
| |
| static int getTagForColumn(pb.Line10 line, int x) { |
| return line.getTagNumber('cell${x + 1}')!; // assume x start from 1 |
| } |
| |
| @override |
| int exercise() { |
| const reps = 100; |
| for (var i = 0; i < reps; i++) { |
| run(); |
| } |
| return reps; |
| } |
| |
| @override |
| void run() { |
| if (fillValue == null) { |
| _getDefaults(); |
| } else { |
| _getStrings(); |
| } |
| } |
| |
| void _getDefaults() { |
| var ok = true; |
| for (final line in grid.lines) { |
| ok = ok && line.cell1.isEmpty; |
| ok = ok && line.cell2.isEmpty; |
| ok = ok && line.cell3.isEmpty; |
| ok = ok && line.cell4.isEmpty; |
| ok = ok && line.cell5.isEmpty; |
| ok = ok && line.cell6.isEmpty; |
| ok = ok && line.cell7.isEmpty; |
| ok = ok && line.cell8.isEmpty; |
| ok = ok && line.cell9.isEmpty; |
| ok = ok && line.cell10.isEmpty; |
| } |
| if (!ok) throw 'failed'; |
| } |
| |
| void _getStrings() { |
| var ok = true; |
| for (final line in grid.lines) { |
| ok = ok && line.cell1.isNotEmpty; |
| ok = ok && line.cell2.isNotEmpty; |
| ok = ok && line.cell3.isNotEmpty; |
| ok = ok && line.cell4.isNotEmpty; |
| ok = ok && line.cell5.isNotEmpty; |
| ok = ok && line.cell6.isNotEmpty; |
| ok = ok && line.cell7.isNotEmpty; |
| ok = ok && line.cell8.isNotEmpty; |
| ok = ok && line.cell9.isNotEmpty; |
| ok = ok && line.cell10.isNotEmpty; |
| } |
| if (!ok) throw 'failed'; |
| } |
| |
| @override |
| void setCounts(Sample m) { |
| m.counts.stringReads = width * height * m.loopCount; |
| } |
| |
| @override |
| double measureSample(Sample? s) => stringReadsPerMillisecond(s); |
| |
| @override |
| String get measureSampleUnits => 'string reads/ms'; |
| |
| static const $id = BenchmarkID.GET_STRINGS; |
| static final $type = BenchmarkType($id, $create); |
| |
| static GetStringsBenchmark $create(Request r) { |
| assert(r.params.hasMessageCount()); |
| String? value; |
| if (r.params.hasStringValue()) value = r.params.stringValue; |
| return GetStringsBenchmark(r.params.messageCount, value); |
| } |
| } |