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https://github.com/esphome/esphome.git
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J. Nick Koston
38ff332fec
Add automated benchmarks using Google Benchmark to prevent performance regressions in the API protobuf encoding/decoding and core loop paths. Benchmarks cover: - Protobuf encode: SensorState, BinarySensorState, HelloResponse, LightState, DeviceInfoResponse (20 nested devices + 20 areas) - Protobuf decode: HelloRequest, SwitchCommand, LightCommand - Protobuf calculate_size and full calc+encode send path - Varint parse/encode/size for various value ranges - Scheduler call/next_schedule_in with idle and active timers - Application loop component dispatch and blocking guard overhead Infrastructure: - Extract shared build logic from cpp_unit_test.py into test_helpers.py - Add cpp_benchmark.py mirroring the unit test build pattern - Support benchmark.yaml per component dir for declaring dependencies - Add CodSpeed CI workflow triggered on api/core changes - Fix ProtoMessage protected destructor on host platform
51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
#include <benchmark/benchmark.h>
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#include "esphome/core/application.h"
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#include "esphome/core/component.h"
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#include "esphome/core/hal.h"
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namespace esphome::benchmarks {
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// A minimal component with an empty loop for benchmarking dispatch overhead
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class NoopComponent : public Component {
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public:
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void loop() override {}
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float get_setup_priority() const override { return 0.0f; }
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// Expose protected method for benchmarking
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void set_loop_state() { this->set_component_state_(COMPONENT_STATE_LOOP); }
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};
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// --- WarnIfComponentBlockingGuard overhead ---
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static void BM_WarnIfComponentBlockingGuard(benchmark::State &state) {
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NoopComponent component;
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uint32_t now = millis();
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for (auto _ : state) {
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WarnIfComponentBlockingGuard guard{&component, now};
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now = guard.finish();
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benchmark::DoNotOptimize(now);
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}
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}
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BENCHMARK(BM_WarnIfComponentBlockingGuard);
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// --- Component virtual dispatch overhead ---
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static void BM_ComponentDispatch(benchmark::State &state) {
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NoopComponent component;
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component.set_loop_state();
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uint32_t now = millis();
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for (auto _ : state) {
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{
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WarnIfComponentBlockingGuard guard{&component, now};
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component.loop();
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now = guard.finish();
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}
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benchmark::DoNotOptimize(now);
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}
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}
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BENCHMARK(BM_ComponentDispatch);
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} // namespace esphome::benchmarks
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