dart-sdk/tests/standalone_2/fragmentation_typed_data_test.dart
Samir Jindel 1b288607f1 [vm] Make fragmentation_typed_data_test less flaky on Android.
Issue https://github.com/dart-lang/sdk/issues/37772

Change-Id: If6858bafdc3983fa679a9bb4990790d3602cfe6a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/114862
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-08-28 17:05:12 +00:00

39 lines
1.4 KiB
Dart

// Copyright (c) 2019, 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.
// See fragmentation_test.dart for more information.
//
// VMOptions=--no_concurrent_mark --no_concurrent_sweep
// VMOptions=--no_concurrent_mark --concurrent_sweep
// VMOptions=--no_concurrent_mark --use_compactor
// VMOptions=--no_concurrent_mark --use_compactor --force_evacuation
// VMOptions=--concurrent_mark --no_concurrent_sweep
// VMOptions=--concurrent_mark --concurrent_sweep
// VMOptions=--concurrent_mark --use_compactor
// VMOptions=--concurrent_mark --use_compactor --force_evacuation
import 'dart:io';
import 'dart:typed_data';
main() {
// We have less memory available on the Android testing devices, and if we
// allocate to much the kernel may summarily terminate us.
final double factor = Platform.isAndroid ? 0.5 : 1.0;
final List<List> arrays = [];
// Fill up heap with alternate large-small items.
for (int i = 0; i < 500000 * factor; i++) {
arrays.add(new Uint32List(260));
arrays.add(new Uint32List(1));
}
// Clear the large items so the heap has large gaps.
for (int i = 0; i < arrays.length; i += 2) {
arrays[i] = null;
}
// Allocate a lot of large items which don't fit in the gaps created above.
for (int i = 0; i < 600000 * factor; i++) {
arrays.add(new Uint32List(300));
}
}