update pushback_benchmark

Author: wusatosi

benchmarks/CMakeLists.txt

@@ -17,3 +17,9 @@ target_link_libraries(
     beman.inplace_vector.benchmark.push_back
     PRIVATE beman.inplace_vector benchmark::benchmark
 )
+
+add_executable(beman.inplace_vector.benchmark.access access_benchmark.cpp)
+target_link_libraries(
+    beman.inplace_vector.benchmark.access
+    PRIVATE beman.inplace_vector benchmark::benchmark
+)

benchmarks/pushback_benchmark.cpp

@@ -1,42 +1,70 @@
 #include "beman/inplace_vector/inplace_vector.hpp"
+
 #include <benchmark/benchmark.h>
 #include <cstddef>
+#include <iostream>
 #include <vector>
 
 using beman::inplace_vector;
 
-template <std::size_t Capacity>
-void InplaceVectorPushback(benchmark::State &state) {
-  for (auto _ : state) {
-    using IV = inplace_vector<int, Capacity>;
+template <std::size_t Capacity> void InplaceVector(benchmark::State &state) {
+  using IV = inplace_vector<int, Capacity>;
+  IV v;
+  v.reserve(Capacity);
 
-    IV v;
+  while (state.KeepRunningBatch(Capacity)) {
+    // while (state.KeepRunning()) {
+    v.clear();
     for (typename IV::size_type i = 0; i < Capacity; ++i)
       v.push_back(i);
     benchmark::DoNotOptimize(v);
   }
 }
 
-template <std::size_t Capacity> void VetorPushback(benchmark::State &state) {
-  for (auto _ : state) {
-    using IV = std::vector<int>;
+template <std::size_t Capacity> void StdVector(benchmark::State &state) {
+  using IV = std::vector<int>;
+  IV v;
+  v.reserve(Capacity);
 
-    IV v;
-    v.reserve(Capacity);
+  while (state.KeepRunningBatch(Capacity)) {
+    // while (state.KeepRunning()) {
+    v.clear();
     for (typename IV::size_type i = 0; i < Capacity; ++i)
       v.push_back(i);
     benchmark::DoNotOptimize(v);
   }
 }
 
-BENCHMARK_TEMPLATE(InplaceVectorPushback, 128);
-BENCHMARK_TEMPLATE(InplaceVectorPushback, 256);
-BENCHMARK_TEMPLATE(InplaceVectorPushback, 512);
-BENCHMARK_TEMPLATE(InplaceVectorPushback, 1024);
+template <typename V, bool use_reserve> struct Meta {
+  using Vector = V;
+  constexpr static bool Reserve = use_reserve;
+};
+
+#define BENCHMARK_VEC_L1(ARG)                                                  \
+  BENCHMARK_TEMPLATE(ARG, 3);                                                  \
+  BENCHMARK_TEMPLATE(ARG, 7);                                                  \
+  BENCHMARK_TEMPLATE(ARG, 15);                                                 \
+  BENCHMARK_TEMPLATE(ARG, 31);                                                 \
+  BENCHMARK_TEMPLATE(ARG, 63);                                                 \
+  BENCHMARK_TEMPLATE(ARG, 127);                                                \
+  BENCHMARK_TEMPLATE(ARG, 255);                                                \
+  BENCHMARK_TEMPLATE(ARG, 511);                                                \
+  BENCHMARK_TEMPLATE(ARG, 1023);
+
+#define BENCHMARK_VEC_L2_L3(ARG)                                               \
+  BENCHMARK_TEMPLATE(ARG, 1 << 10);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 11);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 12);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 14);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 15);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 16);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 17);                                            \
+  BENCHMARK_TEMPLATE(ARG, 1 << 18);
+
+BENCHMARK_VEC_L1(InplaceVector);
+BENCHMARK_VEC_L1(StdVector);
 
-BENCHMARK_TEMPLATE(VetorPushback, 128);
-BENCHMARK_TEMPLATE(VetorPushback, 256);
-BENCHMARK_TEMPLATE(VetorPushback, 512);
-BENCHMARK_TEMPLATE(VetorPushback, 1024);
+BENCHMARK_VEC_L2_L3(InplaceVector);
+BENCHMARK_VEC_L2_L3(StdVector);
 
 BENCHMARK_MAIN();