diff options
author | 2020-09-18 15:55:15 -0700 | |
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committer | 2020-09-24 13:47:15 -0400 | |
commit | b56cbdd23834a65682c0b46f367f8679e83bc894 (patch) | |
tree | dacab9a64dd1a9e9668737e511d1a5420ff96001 /absl/container/btree_benchmark.cc | |
parent | b832dce8489ef7b6231384909fd9b68d5a5ff2b7 (diff) |
Abseil LTS 2020092320200923
What's New:
* `absl::StatusOr<T>` has been released. See our [blog
post](https://abseil.io/blog/2020-091021-status) for more
information.
* Abseil Flags reflection interfaces have been released.
* Abseil Flags memory usage has been significantly optimized.
* Abseil now supports a "hardened" build mode. This build mode enables
runtime checks that guard against programming errors that may lead
to security vulnerabilities.
Notable Fixes:
* Sanitizer dynamic annotations like `AnnotateRWLockCreate` that are
also defined by the compiler sanitizer implementation are no longer
also defined by Abseil.
* Sanitizer macros are now prefixed with `ABSL_` to avoid naming collisions.
* Sanitizer usage is now automatically detected and no longer requires
macros like `ADDRESS_SANITIZER` to be defined on the command line.
Breaking Changes:
* Abseil no longer contains a `dynamic_annotations` library. Users
using a supported build system (Bazel or CMake) are unaffected by
this, but users manually specifying link libraries may get an error
about a missing linker input.
Baseline: 7680a5f8efe32de4753baadbd63e74e59d95bac1
Cherry picks: None
Diffstat (limited to 'absl/container/btree_benchmark.cc')
-rw-r--r-- | absl/container/btree_benchmark.cc | 52 |
1 files changed, 40 insertions, 12 deletions
diff --git a/absl/container/btree_benchmark.cc b/absl/container/btree_benchmark.cc index 4af92f9f..46798676 100644 --- a/absl/container/btree_benchmark.cc +++ b/absl/container/btree_benchmark.cc @@ -36,6 +36,7 @@ #include "absl/flags/flag.h" #include "absl/hash/hash.h" #include "absl/memory/memory.h" +#include "absl/strings/cord.h" #include "absl/strings/str_format.h" #include "absl/time/time.h" #include "benchmark/benchmark.h" @@ -133,6 +134,27 @@ void BM_InsertEnd(benchmark::State& state) { } } +// Benchmark inserting the first few elements in a container. In b-tree, this is +// when the root node grows. +template <typename T> +void BM_InsertSmall(benchmark::State& state) { + using V = typename remove_pair_const<typename T::value_type>::type; + + const int kSize = 8; + std::vector<V> values = GenerateValues<V>(kSize); + T container; + + while (state.KeepRunningBatch(kSize)) { + for (int i = 0; i < kSize; ++i) { + benchmark::DoNotOptimize(container.insert(values[i])); + } + state.PauseTiming(); + // Do not measure the time it takes to clear the container. + container.clear(); + state.ResumeTiming(); + } +} + template <typename T> void BM_LookupImpl(benchmark::State& state, bool sorted) { using V = typename remove_pair_const<typename T::value_type>::type; @@ -438,6 +460,7 @@ using StdString = std::string; STL_ORDERED_TYPES(int32_t); STL_ORDERED_TYPES(int64_t); STL_ORDERED_TYPES(StdString); +STL_ORDERED_TYPES(Cord); STL_ORDERED_TYPES(Time); #define STL_UNORDERED_TYPES(value) \ @@ -458,6 +481,8 @@ STL_ORDERED_TYPES(Time); using stl_unordered_multimap_##value = \ std::unordered_multimap<value, intptr_t, hash> +STL_UNORDERED_TYPES_CUSTOM_HASH(Cord, absl::Hash<absl::Cord>); + STL_UNORDERED_TYPES(int32_t); STL_UNORDERED_TYPES(int64_t); STL_UNORDERED_TYPES(StdString); @@ -478,6 +503,7 @@ STL_UNORDERED_TYPES_CUSTOM_HASH(Time, absl::Hash<absl::Time>); BTREE_TYPES(int32_t); BTREE_TYPES(int64_t); BTREE_TYPES(StdString); +BTREE_TYPES(Cord); BTREE_TYPES(Time); #define MY_BENCHMARK4(type, func) \ @@ -488,6 +514,7 @@ BTREE_TYPES(Time); MY_BENCHMARK4(type, Insert); \ MY_BENCHMARK4(type, InsertSorted); \ MY_BENCHMARK4(type, InsertEnd); \ + MY_BENCHMARK4(type, InsertSmall); \ MY_BENCHMARK4(type, Lookup); \ MY_BENCHMARK4(type, FullLookup); \ MY_BENCHMARK4(type, Delete); \ @@ -526,6 +553,7 @@ BTREE_TYPES(Time); MY_BENCHMARK(int32_t); MY_BENCHMARK(int64_t); MY_BENCHMARK(StdString); +MY_BENCHMARK(Cord); MY_BENCHMARK(Time); // Define a type whose size and cost of moving are independently customizable. @@ -538,19 +566,19 @@ struct BigType { BigType() : BigType(0) {} explicit BigType(int x) { std::iota(values.begin(), values.end(), x); } - void Copy(const BigType& x) { - for (int i = 0; i < Size && i < Copies; ++i) values[i] = x.values[i]; + void Copy(const BigType& other) { + for (int i = 0; i < Size && i < Copies; ++i) values[i] = other.values[i]; // If Copies > Size, do extra copies. for (int i = Size, idx = 0; i < Copies; ++i) { - int64_t tmp = x.values[idx]; + int64_t tmp = other.values[idx]; benchmark::DoNotOptimize(tmp); idx = idx + 1 == Size ? 0 : idx + 1; } } - BigType(const BigType& x) { Copy(x); } - BigType& operator=(const BigType& x) { - Copy(x); + BigType(const BigType& other) { Copy(other); } + BigType& operator=(const BigType& other) { + Copy(other); return *this; } @@ -641,14 +669,14 @@ struct BigTypePtr { explicit BigTypePtr(int x) { ptr = absl::make_unique<BigType<Size, Size>>(x); } - BigTypePtr(const BigTypePtr& x) { - ptr = absl::make_unique<BigType<Size, Size>>(*x.ptr); + BigTypePtr(const BigTypePtr& other) { + ptr = absl::make_unique<BigType<Size, Size>>(*other.ptr); } - BigTypePtr(BigTypePtr&& x) noexcept = default; - BigTypePtr& operator=(const BigTypePtr& x) { - ptr = absl::make_unique<BigType<Size, Size>>(*x.ptr); + BigTypePtr(BigTypePtr&& other) noexcept = default; + BigTypePtr& operator=(const BigTypePtr& other) { + ptr = absl::make_unique<BigType<Size, Size>>(*other.ptr); } - BigTypePtr& operator=(BigTypePtr&& x) noexcept = default; + BigTypePtr& operator=(BigTypePtr&& other) noexcept = default; bool operator<(const BigTypePtr& other) const { return *ptr < *other.ptr; } bool operator==(const BigTypePtr& other) const { return *ptr == *other.ptr; } |