2020-07-21 21:57:05 +00:00
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// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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2021-04-26 17:58:57 +00:00
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// @dart = 2.9
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2020-07-21 21:57:05 +00:00
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// VMOptions=--use_compactor
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// Each loading unit creates more image pages in the heap, which unfortunately
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// cannot be aligned stronger than virtual memory page alignment, so the
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// compactor must detect references to these image pages separately. Before
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// these loading units were implemented, the compactor could assume a small
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// upper bound on the number of image pages.
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import "package:expect/expect.dart";
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import "fragmentation_deferred_load_lib1.dart" deferred as lib1;
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import "fragmentation_deferred_load_lib2.dart" deferred as lib2;
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import "fragmentation_deferred_load_lib3.dart" deferred as lib3;
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main() async {
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await lib1.loadLibrary();
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Expect.equals("one!", lib1.foo());
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await lib2.loadLibrary();
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Expect.equals("two!", lib2.foo());
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await lib3.loadLibrary();
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Expect.equals("three!", lib3.foo());
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final List<List> arrays = [];
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// Fill up heap with alternate large-small items.
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for (int i = 0; i < 500000; i++) {
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arrays.add(new List(260));
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arrays.add(new List(1));
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}
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// Clear the large items so that the heap is full of 260-word gaps.
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for (int i = 0; i < arrays.length; i += 2) {
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arrays[i] = null;
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}
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// Allocate a lot of 300-word objects that don't fit in the gaps.
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for (int i = 0; i < 600000; i++) {
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arrays.add(new List(300));
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}
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}
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