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Kmake/deps/v8/test/benchmarks/cpp/cppgc/allocation_perf.cc

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2026-05-26 23:36:42 -07:00
// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "include/cppgc/allocation.h"
#include "include/cppgc/garbage-collected.h"
#include "include/cppgc/heap-consistency.h"
#include "src/base/macros.h"
#include "src/heap/cppgc/globals.h"
#include "src/heap/cppgc/heap.h"
#include "test/benchmarks/cpp/cppgc/benchmark_utils.h"
#include "third_party/google_benchmark_chrome/src/include/benchmark/benchmark.h"
namespace cppgc {
namespace internal {
namespace {
using Allocate = testing::BenchmarkWithHeap;
class TinyObject final : public cppgc::GarbageCollected<TinyObject> {
public:
void Trace(cppgc::Visitor*) const {}
};
BENCHMARK_F(Allocate, Tiny)(benchmark::State& st) {
subtle::NoGarbageCollectionScope no_gc(*Heap::From(&heap()));
for (auto _ : st) {
USE(_);
TinyObject* result =
cppgc::MakeGarbageCollected<TinyObject>(heap().GetAllocationHandle());
benchmark::DoNotOptimize(result);
}
st.SetBytesProcessed(st.iterations() * sizeof(TinyObject));
}
class LargeObject final : public GarbageCollected<LargeObject> {
public:
void Trace(cppgc::Visitor*) const {}
char padding[kLargeObjectSizeThreshold + 1];
};
BENCHMARK_F(Allocate, Large)(benchmark::State& st) {
subtle::NoGarbageCollectionScope no_gc(*Heap::From(&heap()));
for (auto _ : st) {
USE(_);
LargeObject* result =
cppgc::MakeGarbageCollected<LargeObject>(heap().GetAllocationHandle());
benchmark::DoNotOptimize(result);
}
st.SetBytesProcessed(st.iterations() * sizeof(LargeObject));
}
} // namespace
} // namespace internal
} // namespace cppgc