1 //===-- malloc_benchmark.cpp ------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "allocator_config.h"
10 #include "combined.h"
11 #include "common.h"
12
13 #include "benchmark/benchmark.h"
14
15 #include <memory>
16 #include <vector>
17
18 void *CurrentAllocator;
PostInitCallback()19 template <typename Config> void PostInitCallback() {
20 reinterpret_cast<scudo::Allocator<Config> *>(CurrentAllocator)->initGwpAsan();
21 }
22
BM_malloc_free(benchmark::State & State)23 template <typename Config> static void BM_malloc_free(benchmark::State &State) {
24 using AllocatorT = scudo::Allocator<Config, PostInitCallback<Config>>;
25 auto Deleter = [](AllocatorT *A) {
26 A->unmapTestOnly();
27 delete A;
28 };
29 std::unique_ptr<AllocatorT, decltype(Deleter)> Allocator(new AllocatorT,
30 Deleter);
31 CurrentAllocator = Allocator.get();
32
33 const size_t NBytes = State.range(0);
34 size_t PageSize = scudo::getPageSizeCached();
35
36 for (auto _ : State) {
37 void *Ptr = Allocator->allocate(NBytes, scudo::Chunk::Origin::Malloc);
38 auto *Data = reinterpret_cast<uint8_t *>(Ptr);
39 for (size_t I = 0; I < NBytes; I += PageSize)
40 Data[I] = 1;
41 benchmark::DoNotOptimize(Ptr);
42 Allocator->deallocate(Ptr, scudo::Chunk::Origin::Malloc);
43 }
44
45 State.SetBytesProcessed(uint64_t(State.iterations()) * uint64_t(NBytes));
46 }
47
48 static const size_t MinSize = 8;
49 static const size_t MaxSize = 128 * 1024;
50
51 // FIXME: Add DefaultConfig here once we can tear down the exclusive TSD
52 // cleanly.
53 BENCHMARK_TEMPLATE(BM_malloc_free, scudo::AndroidConfig)
54 ->Range(MinSize, MaxSize);
55 BENCHMARK_TEMPLATE(BM_malloc_free, scudo::AndroidSvelteConfig)
56 ->Range(MinSize, MaxSize);
57 #if SCUDO_CAN_USE_PRIMARY64
58 BENCHMARK_TEMPLATE(BM_malloc_free, scudo::FuchsiaConfig)
59 ->Range(MinSize, MaxSize);
60 #endif
61
62 template <typename Config>
BM_malloc_free_loop(benchmark::State & State)63 static void BM_malloc_free_loop(benchmark::State &State) {
64 using AllocatorT = scudo::Allocator<Config, PostInitCallback<Config>>;
65 auto Deleter = [](AllocatorT *A) {
66 A->unmapTestOnly();
67 delete A;
68 };
69 std::unique_ptr<AllocatorT, decltype(Deleter)> Allocator(new AllocatorT,
70 Deleter);
71 CurrentAllocator = Allocator.get();
72
73 const size_t NumIters = State.range(0);
74 size_t PageSize = scudo::getPageSizeCached();
75 std::vector<void *> Ptrs(NumIters);
76
77 for (auto _ : State) {
78 size_t SizeLog2 = 0;
79 for (void *&Ptr : Ptrs) {
80 Ptr = Allocator->allocate(1 << SizeLog2, scudo::Chunk::Origin::Malloc);
81 auto *Data = reinterpret_cast<uint8_t *>(Ptr);
82 for (size_t I = 0; I < 1 << SizeLog2; I += PageSize)
83 Data[I] = 1;
84 benchmark::DoNotOptimize(Ptr);
85 SizeLog2 = (SizeLog2 + 1) % 16;
86 }
87 for (void *&Ptr : Ptrs)
88 Allocator->deallocate(Ptr, scudo::Chunk::Origin::Malloc);
89 }
90
91 State.SetBytesProcessed(uint64_t(State.iterations()) * uint64_t(NumIters) *
92 8192);
93 }
94
95 static const size_t MinIters = 8;
96 static const size_t MaxIters = 32 * 1024;
97
98 // FIXME: Add DefaultConfig here once we can tear down the exclusive TSD
99 // cleanly.
100 BENCHMARK_TEMPLATE(BM_malloc_free_loop, scudo::AndroidConfig)
101 ->Range(MinIters, MaxIters);
102 BENCHMARK_TEMPLATE(BM_malloc_free_loop, scudo::AndroidSvelteConfig)
103 ->Range(MinIters, MaxIters);
104 #if SCUDO_CAN_USE_PRIMARY64
105 BENCHMARK_TEMPLATE(BM_malloc_free_loop, scudo::FuchsiaConfig)
106 ->Range(MinIters, MaxIters);
107 #endif
108
109 BENCHMARK_MAIN();
110