918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
65 lines
2.8 KiB
C++
65 lines
2.8 KiB
C++
// Copyright 2017 the V8 project 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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#include "include/v8-isolate.h"
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#include "src/flags/flags.h"
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#include "src/heap/heap-controller.h"
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#include "src/heap/heap.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace v8 {
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TEST(ResourceConstraints, ConfigureDefaultsFromHeapSizeSmall) {
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const size_t MB = static_cast<size_t>(i::MB);
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v8::ResourceConstraints constraints;
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constraints.ConfigureDefaultsFromHeapSize(1 * MB, 1 * MB);
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ASSERT_EQ(i::Heap::MinOldGenerationSize(),
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constraints.max_old_generation_size_in_bytes());
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ASSERT_EQ(i::Heap::MinYoungGenerationSize(),
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constraints.max_young_generation_size_in_bytes());
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ASSERT_EQ(0u, constraints.initial_old_generation_size_in_bytes());
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ASSERT_EQ(0u, constraints.initial_young_generation_size_in_bytes());
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}
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TEST(ResourceConstraints, ConfigureDefaultsFromHeapSizeLarge) {
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const size_t KB = static_cast<size_t>(i::KB);
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const size_t MB = static_cast<size_t>(i::MB);
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const size_t pm = i::Heap::kPointerMultiplier;
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v8::ResourceConstraints constraints;
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const size_t expected_young_gen_max_size =
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i::Heap::DefaultMaxSemiSpaceSize() *
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(internal::v8_flags.minor_ms ? 2 : 3);
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constraints.ConfigureDefaultsFromHeapSize(
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50u * MB, internal::V8HeapTrait::kMaxSize + expected_young_gen_max_size);
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// Check that for large heap sizes max semi space size is set to the maximum
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// supported capacity (i.e. 8MB with pointer compression and 16MB without;
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// MinorMS supports double capacity).
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ASSERT_EQ(expected_young_gen_max_size,
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constraints.max_young_generation_size_in_bytes());
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ASSERT_EQ(internal::V8HeapTrait::kMaxSize,
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constraints.max_old_generation_size_in_bytes());
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// Check that for small initial heap sizes initial semi space size is set to
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// the minimum supported capacity (i.e. 1MB with pointer compression and 512KB
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// without).
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ASSERT_EQ((internal::v8_flags.minor_ms ? 2 : 3) * 512 * pm * KB,
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constraints.initial_young_generation_size_in_bytes());
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ASSERT_EQ(50u * MB - (internal::v8_flags.minor_ms ? 2 : 3) * 512 * pm * KB,
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constraints.initial_old_generation_size_in_bytes());
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}
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TEST(ResourceConstraints, ConfigureDefaults) {
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const size_t GB = static_cast<size_t>(i::GB);
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v8::ResourceConstraints constraints;
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constraints.ConfigureDefaults(2u * GB, 0u);
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ASSERT_EQ(i::V8HeapTrait::kMaxSize / 2,
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constraints.max_old_generation_size_in_bytes());
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ASSERT_EQ(0u, constraints.initial_old_generation_size_in_bytes());
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ASSERT_EQ(i::Heap::DefaultMaxSemiSpaceSize() / 2 *
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(internal::v8_flags.minor_ms ? (2 * 2) : 3),
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constraints.max_young_generation_size_in_bytes());
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ASSERT_EQ(0u, constraints.initial_young_generation_size_in_bytes());
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}
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} // namespace v8
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