687200db93
The quick summary: - OOM crashes reduced significantly on Desktop (5-16%), - Cage exhaustion is almost fully gone on Windows/Linux and reduced by 77% on Mac, - PMF didn't change, as expected. Bug: 343959927 Change-Id: If990d54dd519f9474c88d1599a2b534c2bec7b0c Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6012407 Commit-Queue: Anton Bikineev <bikineev@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/main@{#1382315}
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
// Copyright 2021 The Chromium Authors
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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 "gin/public/cppgc.h"
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#include "base/check_op.h"
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#include "base/feature_list.h"
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#include "build/build_config.h"
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#include "gin/gin_features.h"
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#include "gin/public/v8_platform.h"
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#include "v8/include/cppgc/platform.h"
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namespace gin {
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namespace {
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int g_init_count = 0;
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} // namespace
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void InitializeCppgcFromV8Platform() {
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#if BUILDFLAG(IS_ANDROID)
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// Keep the cage size at 4GB on Android, since some vendors can configure the
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// kernel to have address space limited to 2^39 or 2^36 bits, which is more
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// prone to address space exhaustion.
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static constexpr size_t kCageSize =
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static_cast<size_t>(4) * 1024 * 1024 * 1024;
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#else
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static constexpr size_t kCageSize =
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static_cast<size_t>(16) * 1024 * 1024 * 1024;
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#endif
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DCHECK_GE(g_init_count, 0);
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if (g_init_count++ > 0) {
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return;
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}
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cppgc::InitializeProcess(gin::V8Platform::Get()->GetPageAllocator(),
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kCageSize);
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}
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void MaybeShutdownCppgc() {
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DCHECK_GT(g_init_count, 0);
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if (--g_init_count > 0)
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return;
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cppgc::ShutdownProcess();
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}
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} // namespace gin
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