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Merge branch 'dev' into optimize-value-accuracy

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This commit is contained in:
J. Nick Koston
2026-04-09 07:54:37 -10:00
committed by GitHub
parent e0fa1340e2 03db32d045
commit 36ac6e277a
9 changed files with 39 additions and 11 deletions
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tests/benchmarks/core/bench_helpers.cpp
+10 -6
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@@ -72,8 +72,9 @@ BENCHMARK(FormatHexTo_16Bytes);
static void FormatHexTo_100Bytes(benchmark::State &state) {
uint8_t data[100];
for (int i = 0; i < 100; i++)
for (int i = 0; i < 100; i++) {
data[i] = static_cast<uint8_t>(i);
}
char buffer[201]; // 100 * 2 + 1
for (auto _ : state) {
for (int i = 0; i < kInnerIterations; i++) {
@@ -183,12 +184,14 @@ BENCHMARK(Fnv1aHash_Long);
// --- fnv1_hash_object_id() - typical entity name ---
static void Fnv1HashObjectId(benchmark::State &state) {
const char *name = "Living Room Temperature Sensor";
size_t len = strlen(name);
char name[] = "Living Room Temperature Sensor";
size_t len = sizeof(name) - 1;
benchmark::DoNotOptimize(name);
for (auto _ : state) {
uint32_t result = 0;
for (int i = 0; i < kInnerIterations; i++) {
result ^= fnv1_hash_object_id(name, len);
benchmark::ClobberMemory();
}
benchmark::DoNotOptimize(result);
}
@@ -259,7 +262,7 @@ BENCHMARK(CRC16_8Bytes);
// --- value_accuracy_to_buf() - typical sensor value ---
static void ValueAccuracyToBuf(benchmark::State &state) {
char raw_buf[VALUE_ACCURACY_MAX_LEN];
char raw_buf[VALUE_ACCURACY_MAX_LEN] = {};
std::span<char, VALUE_ACCURACY_MAX_LEN> buf(raw_buf);
float value = 23.456f;
for (auto _ : state) {
@@ -275,12 +278,13 @@ BENCHMARK(ValueAccuracyToBuf);
// --- int8_to_str() ---
static void Int8ToStr(benchmark::State &state) {
char buffer[5];
char buffer[5] = {};
for (auto _ : state) {
for (int i = 0; i < kInnerIterations; i++) {
int8_to_str(buffer, static_cast<int8_t>(i & 0xFF));
benchmark::DoNotOptimize(buffer);
benchmark::ClobberMemory();
}
benchmark::DoNotOptimize(buffer);
}
state.SetItemsProcessed(state.iterations() * kInnerIterations);
}