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Add set_bit STL benchmark comparison #15

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Merged
bugparty merged 3 commits into from
Jun 7, 2025
Merged

Add set_bit STL benchmark comparison #15

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6665998
Add STL comparison benchmarks for set_bit
bugparty Jun 7, 2025
ae1276b
Restore benchmark config macros
bugparty Jun 7, 2025
36833ed
Merge branch 'main' into codex/add-benchmark-for-set_bit-functions
bugparty Jun 7, 2025
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1 change: 1 addition & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ set(CMAKE_CXX_STANDARD 17)
# benchmarks is configured with `BITVECTOR_BENCHMARK_MIN_TIME`.
set(BITVECTOR_TEST_TIMEOUT 10 CACHE STRING "Timeout in seconds for each unit test")
set(BITVECTOR_BENCHMARK_MIN_TIME 0.2 CACHE STRING "Minimum time in seconds for benchmark runs")

option(BITVECTOR_NO_BOUND_CHECK "Disable bounds checking in bitvector" ON)
if(BITVECTOR_NO_BOUND_CHECK)
add_compile_definitions(BITVECTOR_NO_BOUND_CHECK)
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48 changes: 48 additions & 0 deletions bitvector_benchmark.cpp
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Expand Up @@ -76,6 +76,50 @@ static void BM_Std_Access(benchmark::State& state) {
}
}

static void BM_Bowen_SetBit(benchmark::State& state) {
size_t n = state.range(0);
for (auto _ : state) {
bitvector<> bv(n);
for (size_t i=0;i<n;++i) {
bv.set_bit(i, static_cast<bool>(i & 1));
}
benchmark::ClobberMemory();
}
}

static void BM_Std_SetBit(benchmark::State& state) {
size_t n = state.range(0);
for (auto _ : state) {
std::vector<bool> bv(n);
for (size_t i=0;i<n;++i) {
bv[i] = static_cast<bool>(i & 1);
}
benchmark::ClobberMemory();
}
}

static void BM_Bowen_SetBitTrueUnsafe(benchmark::State& state) {
size_t n = state.range(0);
for (auto _ : state) {
bitvector<> bv(n);
for (size_t i=0;i<n;++i) {
bv.set_bit_true_unsafe(i);
}
benchmark::ClobberMemory();
}
}

static void BM_Std_SetBitTrueUnsafe(benchmark::State& state) {
size_t n = state.range(0);
for (auto _ : state) {
std::vector<bool> bv(n);
for (size_t i=0;i<n;++i) {
bv[i] = true;
}
benchmark::ClobberMemory();
}
}


static void BM_Bowen_SetBitTrue6(benchmark::State& state) {
size_t n = state.range(0);
Expand Down Expand Up @@ -153,6 +197,10 @@ BENCHMARK(BM_Bowen_PushBack)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Std_PushBack)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Bowen_Access)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Std_Access)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Bowen_SetBit)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Std_SetBit)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Bowen_SetBitTrueUnsafe)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Std_SetBitTrueUnsafe)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Bowen_SetBitTrue6)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Std_SetBitTrue6)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
BENCHMARK(BM_Bowen_QSetBitTrue6V2)->Arg(1<<20)->MinTime(BITVECTOR_BENCHMARK_MIN_TIME);
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